29,860 results on '"Volcanoes"'
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2. Conceptual Change and Relation to Knowledge: The Case of Volcanism at Primary School.
- Author
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Caillot, Michel and Chartrain, Jean-Louis
- Abstract
This paper tries to explain why all the students of a same class who have got the same teaching do not go so far in their conceptual change. Here we have studied the students' conceptual change about volcanoes in a French 5th grade. The different students' preconceptions before teaching have been categorized and related to the well-known historical and epistemological obstacles. After a specific teaching whose objectives were to overcome these obstacles, we have looked how the conceptual change has taken place for each student. In order to explain the diverse individual conceptual changes, we have introduced the concept of individual "relation to knowledge" and for each student this relation to knowledge had been determined. Those who undertake the largest conceptual change have the most positive relation to knowledge. (Author)
- Published
- 2001
3. How Do Volcanoes Affect Human Life? Integrated Unit.
- Author
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Dayton, Rebecca, Edwards, Carrie, and Sisler, Michelle
- Abstract
This packet contains a unit on teaching about volcanoes. The following question is addressed: How do volcanoes affect human life? The unit covers approximately three weeks of instruction and strives to present volcanoes in an holistic form. The five subject areas of art, language arts, mathematics, science, and social studies are integrated into the unit. Students are introduced to volcanoes as geographic features that are able to alter the functions of societies in close proximity to volcanoes. Focus questions include: (1) How may science fiction present volcanoes? (2) What are the layers of the Earth? (3) How do plate tectonics affect volcanic activity? (4) What is the historical significance of the eruption of Mount Saint Helens, Mount Pelee, and Mount Pinatubo? (5) What ate the types of volcanoes? (6) How are lava types different from one volcano to another? (7) How can we model volcanoes before and after eruptions? (8) How are people informed of volcanic eruptions? (9) What role does persuasive speech play in communicating safety issues surrounding volcanic eruptions? (10) Why are people concerned about volcanic eruptions? (11) What effects do volcanoes have on the environment? (12) How can you obtain information concerning professions in the study of volcanoes? and (13) How can volcano information be shared with the general public? (SAH)
- Published
- 2000
4. Island of the Sharks Activity Guide To Accompany the Large-Format Film.
- Author
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WGBH-TV, Boston, MA. and Gowell, Elizabeth Tayntor
- Abstract
This document targets upper elementary and middle school students and provides activities to understand what the ocean floor looks like, the interactions of ocean communities, and the true nature of sharks. The activities are developed at three levels: beginner, intermediate, and advanced. The twelve activities include: (1) "Ocean Detectives"; (2) "Make a Mountain"; (3) "Ocean Motion"; (4) "Sea Around You"; (5) "Rock Reef Critters"; (6) "Ahoy! It's an Island"; (7) "Take a Dive"; (8) "Shark Parts"; (9) "A Dentist's Dream"; (10) "Smelly? Not!"; (11) "Fishing for Dinner"; and (12) "Shark Folklore." Career information and resources are also included. (YDS)
- Published
- 1999
5. Old as the Hills. Morrow Mountain State Park: An Environmental Education Learning Experience Designed for Grades 5-7.
- Author
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North Carolina State Dept. of Environment, Health, and Natural Resources, Raleigh. Div. of Parks and Recreation.
- Abstract
This curriculum packet was developed and designed to provide environmental education through a series of hands-on activities for the classroom and the outdoor setting of Morrow Mountain State Park, North Carolina to introduce students to the geology of the Uwharrie Mountains. Designed for grades 5 through 7, the packet meets the established curriculum objectives of the North Carolina Department of Public Instruction. Students are exposed to major concepts such as weathering, erosion, rock cycle, rock types, and geologic processes. The packet is divided into nine sections: (1) introduction to the North Carolina State Parks system, Morrow Mountain State Park, and the activity packet; (2) activity summary and correlation chart showing how each activity correlates with Department of Public Instruction objectives; (3) pre-visit activities on sedimentary, metamorphic, and igneous rock formation; (4) on-site activities on rock types and characteristics of the Uwharrie Mountains; (5) post-visit activities to reinforce and review previous lessons; (6) vocabulary; (7) references; (8) an appendix summarizing the Uwharrie Mountains geology; and (9) a scheduling worksheet, permission form, and program evaluation form. All activities include curriculum objectives for each grade level, descriptions of location, group size, estimated time needed, materials needed, major concepts covered, and activity objectives, as well as background information for the educator, instructions, student information sheets, and worksheets. Most activities also include extensions and assessment tools. (PVD)
- Published
- 1998
6. Volcanoes! Teaching Guide.
- Author
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Geological Survey (Dept. of Interior), Reston, VA.
- Abstract
This document is an interdisciplinary set of materials for grades 4 through 8 that reflects the goals of the National Science Education Standards developed by the National Research Council (NRC). The activities in this packet incorporate a number of related subjects including other sciences, social studies, language arts, and mathematics. Contains a two-sided poster, teaching guide, six lesson plans with timed activities, and an evaluation sheet. Lesson topics include the lithosphere, atmosphere, biosphere, hydrosphere, and cryosphere. (DDR)
- Published
- 1998
7. I Invite You To Know the Earth I. Elementary School 2nd to 4th Grade Teacher's Guidebook [and] Text for Elementary School 2nd to 4th Grade.
- Author
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United Nations Educational, Scientific, and Cultural Organization, Paris (France). Intergovernmental Oceanographic Commission. and United Nations Educational, Scientific, and Cultural Organization, Paris (France). Intergovernmental Oceanographic Commission.
- Abstract
This student text is designed for grades 2-4 and explores various earth science topics. A cartoon character named Tommy Tsumi explains earth facts and concepts throughout the text. Activities, materials, and learning objectives for each unit in the textbook are provided in the teacher's guide. Units in both include: (1) "What Does Our Earth Look Like?"; (2) "I Invite You to Know the Inside of the Earth"; (3) "Earthquakes and Tsunamis"; (4) "What is a Natural Hazard?"; and (5) "Basic Prevention Rules in Case of Natural Hazards". (WRM)
- Published
- 1998
8. I Invite You To Know the Earth II. 5th to 8th Grade of Preparatory School Teacher's Guide [and] 5th to 8th Grade of Preparatory School Textbook.
- Author
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United Nations Educational, Scientific, and Cultural Organization, Paris (France). Intergovernmental Oceanographic Commission. and United Nations Educational, Scientific, and Cultural Organization, Paris (France). Intergovernmental Oceanographic Commission.
- Abstract
The student textbook is designed for grades 5-8 and explores various earth science topics. A cartoon character named Tommy Tsumi explores earth facts and concepts throughout the text. Activities, materials, and learning objectives for each unit in the textbook are presented in the teacher's guide. Units in both books include: (1) "The Outside of the Earth"; (2) "The Interior of the Earth"; (3) "Earthquakes and Volcanoes"; (4) "Tsunamis"; and (5) "Tsunami Protection Measures". (WRM)
- Published
- 1998
9. Forces of the Wild. Nature. Teacher's Guide.
- Author
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Thirteen WNET, New York, NY., Public Broadcasting Service, Washington, DC. PBS Elementary/Secondary Service., and Brown, Jordan
- Abstract
This curriculum guide was developed for use with public television's Nature series. The materials in the guide are designed to help students actively participate in the study and experience of nature. Students are encouraged to view the programs as a scientist would, observing natural phenomena and drawing conclusions. Each lesson in the Teacher's Resource Guide includes: (1) a "Program Overview" that presents background information and brief synopses of the program to be viewed; (2) "Objectives" that provide the teacher with measurement goals; (3) a "Before Viewing Activity" that familiarizes students with the subject and allows them to set purposes for viewing; (4) "Vocabulary" that features definitions of unfamiliar words used in each program; (5) "Discussion Questions" that help students assess the main points of the program; (6) "Suggested Reading" for students who may want to learn more about the topic; and (7) a "Naturalist's Guide" (student worksheet) to be duplicated and distributed to students. The programs highlighted in this guide focus on the powerful natural forces that change the earth and how these forces affect the vast variety of life forms covering the planet. Program titles include "In the Beginning,""Perpetual Motion,""Heavenly Partners,""Living Dangerously," and "Playing with Fire." (WRM)
- Published
- 1998
10. NOVA Fall 1998 Teacher's Guide.
- Author
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WGBH-TV, Boston, MA. and Colombo, Luann
- Abstract
This teacher's guide is designed to accompany the PBS television program "NOVA." Six science activities correspond to: (1) "Lost at Sea: The Search for Longitude,, which researches and charts the shortest course to circumnavigate the globe; (2) "Chasing El Nino," which formulates a question and designs an experiment to evaluate the accuracy of weather folklore; (3) "Terror in Space," which explores the concept of center of mass and experiments with how altering the location of an object's center of mass can affect its motion; (4) "Special Effects: Titanic and Beyond," which investigates how geometry plays a role in perspective; (5) "Deadly Shadow of Vesuvius," which collects data and create maps to observe the relationship between volcanoes, earthquakes, and lithospheric plates; and (6) "Ice Mummies," which investigates the rate of microbial growth at different temperatures, and analyzes and interprets information in order to locate an archaeological site. All activities include a list of the National Science Education Standards addressed. (YDS)
- Published
- 1998
11. Earthquakes and Tsunamis. Pre-Elementary School Teacher's Guidebook [and] Pre-Elementary School Textbook.
- Author
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United Nations Educational, Scientific, and Cultural Organization, Paris (France). Intergovernmental Oceanographic Commission.
- Abstract
This teacher's guide and student text present basic information about the causes and effects of earthquakes and tsunamis. The teacher's guide contains suggested activities, materials, and educational objectives for the text. Chapters in both texts are: (1) "Shapes and Movements of the Water"; (2) "Permeability and Buoyancy"; (3) "Life Styles at Different Settings"; (4) "Earthquakes and Tsunamis"; and (5) "Hazards Prevention." (WRM)
- Published
- 1996
12. Simulating a Volcanic Crisis in the Classroom.
- Author
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Harpp, Karen S. and Sweeney, William J.
- Abstract
Reports on the design of a multi-week cooperative learning activity for an undergraduate introductory volcanology class which culminates in the simulation of a volcanic monitoring crisis. Suggests that this activity creates an effective and exciting learning environment in which students have the opportunity to apply theoretical concepts to a more realistic situation than is achieved in conventional classroom exercises. (Author/MM)
- Published
- 2002
13. Modeling Olympus Mons from the Earth.
- Author
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Lebofsky, Nancy R. and Lebofsky, Larry A.
- Abstract
Presents a science activity using cubes for constructing the "Olympus Mons" model, the largest known volcano in the solar system. Uses the Catalina Mountains as a real-life comparison and builds a scale-proportionate model. (YDS)
- Published
- 2002
14. Plate Tectonics: The Way the Earth Works. Teacher's Guide. LHS GEMS.
- Author
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California Univ., Berkeley. Lawrence Hall of Science. and Cuff, Kevin
- Abstract
This teacher guide presents a unit on plate tectonics and introduces hands-on activities for students in grades 6-8. In each unit, students act as real scientists and gather evidence by using science process skills such as observing, graphing, analyzing data, designing and making models, visualizing, communicating, theorizing, and drawing conclusions. The units presented in this guide meet the National Science Education Standards as well as state frameworks and district guidelines. There are seven sessions focusing on different concepts in the guide. Sessions include: (1) "Geologic Time and Processes That Form the Earth's Crust"; (2) "Field Work of California"; (3) "Investigating Viscosity and Volcanic Rocks"; (4) "Field Work in Hawaii"; (5) "Field Work in Japan"; (6) "Field Work in Nepal"; and (7) "Field Work in Iceland". (YDS)
- Published
- 2002
15. The Galapagos.
- Author
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Schiller, Nancy A. and Herreid, Clyde F.
- Abstract
Uses a problem-based teaching approach to teach about the geological origins of the Galapagos Islands, colonization, species formation, and threats to biodiversity. Discusses finches, tortoises, and sea cucumbers and provides instructions for student discussions. (YDS)
- Published
- 2000
16. Classroom Volcanology.
- Author
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Thomas, Gregory C.
- Abstract
Explains the use of a constructivist model for engaging students in the curriculum. The student end of the model is characterized by the knowledge, personal experience, degree of motivation, and level of interest that a student brings to a learning situation. (DDR)
- Published
- 1998
17. Global Change: How Humans and Nature Impact Our Planet. Self-Directed Study Units for Grades K-8.
- Author
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Brown, Mary
- Abstract
This book consists of two complete units on global change. The first unit is created for lower elementary students and the second one is for upper elementary grade levels. The units are designed for gifted students and encourage students to be responsible for their own education. Each unit is based on an interdisciplinary approach. Suggestions for adaptation of the units are also included. (YDS)
- Published
- 1998
18. Volcano!: An Event-Based Science Module. Teacher's Guide. Geology Module.
- Author
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Wright, Russell G. and Wright, Russell G.
- Abstract
This book is designed for middle school earth science teachers to help their students learn scientific literacy through event-based science. Unlike traditional curricula, the event-based earth science module is a student-centered, interdisciplinary, inquiry-oriented program that emphasizes cooperative learning, teamwork, independent research, hands-on investigations, and exploration of authentic tasks. Students use this book to work in cooperative teams and play the roles of producer, special effects expert, camera operator, volcanologist, and geologist. The module in this book can be used to build a whole curriculum or fit into current lesson plans to add interest. (KHR)
- Published
- 1997
19. Volcano!: An Event-Based Science Module. Student Edition. Geology Module.
- Author
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Wright, Russell G. and Wright, Russell G.
- Abstract
This book is designed for middle school students to learn scientific literacy through event-based science. Unlike traditional curricula, the event-based earth science module is a student-centered, interdisciplinary, inquiry-oriented program that emphasizes cooperative learning, teamwork, independent research, hands-on investigations, and exploration of authentic tasks. Each unit is centered around a volcanic event that had a catastrophic impact on people and the environment. Students use this book to work in cooperative teams and play the roles of producer, special effects expert, camera operator, volcanologist, and geologist. (KHR)
- Published
- 1997
20. Exploring Geology on the World-Wide Web--Volcanoes and Volcanism.
- Author
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Schimmrich, Steven Henry and Gore, Pamela J. W.
- Abstract
Focuses on sites on the World Wide Web that offer information about volcanoes. Web sites are classified into areas of Global Volcano Information, Volcanoes in Hawaii, Volcanoes in Alaska, Volcanoes in the Cascades, European and Icelandic Volcanoes, Extraterrestrial Volcanism, Volcanic Ash and Weather, and Volcano Resource Directories. Suggestions for classroom activities using the Web sites are included. (PVD)
- Published
- 1996
21. Volcanoes in the Classroom--an Explosive Learning Experience.
- Author
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Thompson, Susan A. and Thompson, Keith S.
- Abstract
Presents a unit on volcanoes for third- and fourth-grade students. Includes demonstrations; video presentations; building a volcano model; and inviting a scientist, preferably a vulcanologist, to share his or her expertise with students. (JRH)
- Published
- 1996
22. Earthquakes, Volcanoes, and the Information Superhighway.
- Author
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Slattery, William
- Abstract
Provides examples of using real time data sources from the Internet and the World Wide Web to enable students to collect the data that leads scientists to scientific paradigms, expand the scope of instruction to regional and global perspectives, and integrate science with other curriculum areas. (DDR)
- Published
- 1996
23. Digging into Minnesota Minerals.
- Author
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Minnesota State Dept. of Natural Resources, St. Paul.
- Abstract
This publication presents students with facts about geology and several learning activities. Topics covered include rocks and minerals, volcanoes and earthquakes, fossils, exploration geology, mining in Minnesota, environmental issues related to mining, mineral uses, mining history, and the geology of Minnesota's state parks. A geologic timetable relates the earth's eras with rocks in Minnesota, events in Minnesota, and characteristic life of the periods. This timetable is accompanied by an activity demonstrating the formation of sedimentary rocks. An article about fossils is accompanied by an activity that allows students to make their own fossils from clay and plaster of Paris. Activities demonstrating drill core sampling and the difficulty of mining through a chocolate chip cookie are related to various articles on mining in Minnesota. A feature about the Hull Rust Mahoning mine in Hibbing, Minnesota, discusses taconite, a low-grade iron ore. This feature includes a sidebar explaining mines and the mining industry in Minnesota. Other activities in this publication consist of word games, quizzes, and mazes. (PVD)
- Published
- 1995
24. Incorporating Terrestrial Planet Volcanic Data in the Classroom.
- Author
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Howe, Robert C. and Patrick, Randy R.
- Published
- 1995
25. The STRATegy COLUMN for Precollege Science Teachers: Volcanic Activity.
- Author
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Metzger, Ellen Pletcher
- Abstract
Describes resources for information and activities involving volcanoes. Includes an activity that helps students become familiar with the principal types of volcanoes and explores how the viscosity of magma affects the way a volcano erupts. (MKR)
- Published
- 1995
26. SSMILes: Investigating Various Volcanic Eruptions and Volcano Heights.
- Author
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Wagner-Pine, Linda and Keith, Donna Graham
- Abstract
Presents an integrated math/science activity that shows students the differences among the three types of volcanoes using observation, classification, graphing, sorting, problem solving, measurement, averages, pattern relationships, calculators, computers, and research skills. Includes reproducible student worksheet. Lists 13 teacher resources. (MKR)
- Published
- 1994
27. Geoflicks Reviewed--Films about Hawaiian Volcanoes.
- Author
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Bykerk-Kauffman, Ann
- Abstract
Reviews 11 films on volcanic eruptions in the United States. Films are given a one- to five-star rating and the film's year, length, source and price are listed. Top films include "Inside Hawaiian Volcanoes" and "Kilauea: Close up of an Active Volcano." (AIM)
- Published
- 1994
28. Rock Cycle Sagas: The STRATegy COLUMN for Precollege Science Teachers.
- Author
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Metzger, Ellen Pletcher
- Abstract
Reviews The Best of BAESI: Earth Science Activities & Recommended Resources from the Bay Area Earth Science Institute. The Best of BAESI is divided into two parts. Part I contains 19 classroom activities on topographic maps, rocks and minerals, earthquakes, volcanoes, and plate tectonics. Part II describes resources and identifies government agencies and organizations for earth-science teachers. (AIM)
- Published
- 1994
29. Belief Systems as Barrier To Learning in Geological Education.
- Author
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Bezzi, Alfredo and Happs, John C.
- Abstract
Presents the results of a survey on volcanism completed by secondary students (N=1000) in Northern Italy. Findings indicate that these students, who live in a non-volcanic area, firmly believe that their area is volcanic. (DDR)
- Published
- 1994
30. Demonstrating Allotropic Modifications of Sulfur.
- Author
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McCarty, Jillian L. and Dragojlovic, Veljko
- Abstract
Shows how a common demonstration that consists of slowly heating sulfur powder in a test tube to illustrate sulfur's allotropic modifications can convince students of conclusions about the moon Io which they often find surprising. Describes the demonstration in full. (Author/MM)
- Published
- 2002
31. Unlocking Creativity.
- Author
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Antonietti, Alessandro
- Abstract
Debunks five misconceptions about improving creative thinking. To encourage students to think creatively, instructional techniques should reflect an integrated set of mental skills, use materials mimicking real-life situations, consider students' beliefs and tendencies toward creative thinking, show metacognitive sensibility, and foster a creative mind-set. One program helps students develop innovative thinking while unlocking a volcano's secret. (MLH)
- Published
- 1997
32. Living with Volcanoes: Year Eleven Teaching Resource Unit.
- Author
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Le Heron, Kiri, Andrews, Jill, Hooks, Stacey, Larnder, Michele, and Le Heron, Richard
- Abstract
Presents a unit on volcanoes and experiences with volcanoes that helps students develop geography skills. Focuses on four volcanoes: (1) Rangitoto Island; (2) Lake Pupuke; (3) Mount Smart; and (4) One Tree Hill. Includes an answer sheet and resources to use with the unit. (CMK)
- Published
- 2000
33. GETIT--Geoscience Education through Interactive Technology[TM]. [CD-ROM].
- Abstract
This CD-ROM uses catastrophic events to teach the fundamentals of the earth's dynamism. Topics discussed include earthquakes, volcanoes, hurricanes, plate tectonics, and many subjects that have to do with energy transfer. It contains 63 interactive, inquiry-based activities that closely simulate real life scientific practice. Students work with actual data collected from 45,000 seismological events in order to recognize that science is not a seamless fabric of established facts but a complex network of ideas and processes. Using an electronic notebook, students are able to record their ideas and answer questions. Teachers are also able to track students' progress using the integrated class management module. The teacher guide provides class management hints, goals, assessment criteria, scientific content, references to hands-on activities, and Blackline Masters. A Web-based bulletin board allows teachers to share experiences and activities. (SAH)
- Published
- 2000
34. Geology: The Active Earth.
- Author
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National Wildlife Federation, Washington, DC. and Braus, Judy
- Abstract
Ranger Rick's NatureScope is a creative education series dedicated to inspiring in children an understanding and appreciation of the natural world while developing the skills they will need to make responsible decisions about the environment. The topic of this issue is "Geology: The Active Earth." Contents are organized into the following sections: (1) "Earth on the Move," describing information and activities on the structure of the Earth, the theory of plate tectonics, and earthquakes and volcanoes; (2) "Rocks and Minerals," giving information and activities on rock and mineral composition, formation, and classification; (3) "Shaping the Landscape," providing information and activities on forces that wear down landforms and forces that build them up; (4) "Secrets of the Past," offering information and activities on how and where fossils form, what they tell about the past, and how scientists determine the ages of fossils; (5) "People and Geology," providing information and activities on the origins and uses of rocks, minerals, and fossil fuels, and some of the problems caused by their use; and (6) "Appendix," featuring bibliographic and other reference information. (WRM)
- Published
- 1987
35. Secrets of Science. Videos 1-13. [Videotape.]
- Author
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Walt Disney Publishing Group, Burbank, CA. Discover Magazine.
- Abstract
Discoveries in science and technology are being made at such a rapid pace that it is often difficult for many teachers to stay abreast of new and relevant information. To assist teachers in keeping their students well informed of new discoveries in science, Discover Magazine developed a 13-part video series entitled "Secrets of Science." In each of these videos, new discoveries have been gradually integrated with existing knowledge of a variety of scientific concepts: VIDEO 1: "From the Beginning" (Program 1: "How Life Began" and "The Evolution of Man"; Program 2: "The Origin of Species" and "A Human Being is Born"); VIDEO 2: "Life's Building Blocks" (Program 1: "Blood and Our Bodies" and "DNA and Diversity"; Program 2: "The Complex Cell" and "Understanding Viruses"); VIDEO 3:"Brain Power" (Program 1: "The Sense of Sight" and "The Human Brain"; Program 2: "Civilization's Progress" and "The Written Word"); VIDEO 4: "The Life Around Us": (Program 1: "The Animal Kingdom" and "The World of Insects"; Program 2: "The Busy Bees" and "A Planet of Plants"); VIDEO 5: "Planet Earth, Our Home" (Program 1: "There's No Place Like Home" and "Polluting Our Atmosphere"; Program 2: "Wasting Our Planet" and "When the Ground Quakes"); VIDEO 6: "Earth's Extremes" (Program 1: "When Lava Flows" and "Glaciers: The Cold Facts"; Program 2: "The Antarctic: A Frozen World" and "The Torrid Tropics"); VIDEO 7: "Our Sea and Sky" (Program 1: "An Ocean Overview" and "Life Beneath the Waves"; Program 2: "Creating our Climate" and "Comets: Spectacles in the Sky"); VIDEO 8: "Into Outer Space" (Program 1: "Space Travel" and "Landing on the Moon"; Program 2: "Exploratory Space Probes" and "Star Bright"); VIDEO 9: "Our Sun and Solar System" (Program 1: "The Four Fundamental Forces" and "Our Solar System"; Program 2: "The Sun: Source of Life" and "What is Light?"); VIDEO 10: "The Mysteries of Motion and Power" (Program 1: "Considering Kinematics" and "Newton's Laws"; Program 2: "Electricity: A Current Affair" and "The Physics of Force"); VIDEO 11: "Exploring Energy" (Program 1: "Elementary Energy" and "Nuclear Energy"; Program 2: "The Combustion Engine" and "Power From Petroleum"); VIDEO 12: "Of Wheels and Wings"; (Program 1: "Rolling on Land" and "Sailing on Water"; Program 2: "Flying Through the Air" and "The Magic of Flight"); VIDEO 13: "Through the Looking Glass" (Program 1:"About Telescopes" and "Focus on Photography" and "Looking Into Deep Space"; Program 2: "On Television" and "Surrounded by Satellites"). (ZWH/WTB)
- Published
- 1994
36. Teaching the Basics about Volcanoes to K-16 Students.
- Author
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Mattox, Stephen Ross
- Abstract
Presents a lesson on volcanoes that evaluates student knowledge and misconceptions and provides factual information. (YDS)
- Published
- 2000
37. Pure and Applied Physics and Chemistry.
- Author
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Winkel, Lois
- Abstract
Argues that K-12 students in the United States will continue to lack essential science knowledge until teachers are more knowledgeable about science, science curricula are restructured, and more varied science books are available. Highlights print and Web resources dealing with earthquakes and volcanoes, the heart, science experiments at home, and the Franklin Institute Science Museum (Philadelphia). (PEN)
- Published
- 1998
38. Project LAVA.
- Author
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Nelson, Cheryl
- Abstract
Describes a summer program for teachers in the Hawaii Volcanoes National Park in which teachers share in hands-on activities that demonstrate volcanic processes including volcanic hazards, plate tectonics, and earthquakes. (DDR)
- Published
- 1998
39. Express Electrolysis.
- Author
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Smithenry, Dennis, Gassman, Christopher, Goodridge, Brandon, and Petersen, Tom
- Abstract
Explains the process of student and teacher collaboration on a project to develop a faster electrolysis mechanism. Provides a good example of the problem-based approach to science instruction and curriculum. (DDR)
- Published
- 1998
40. Jiffy Pop Volcanoes.
- Author
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Cruz, Irene
- Abstract
Pans of popcorn are popped to varying degrees in order to compare them to the earth's surface with volcanic pressure building up in this demonstration. Volcanic activity is also related to bodily functions to help students make connections. For example, the release of gas through burping after drinking soda pop is related to the release of pressure in a volcano. (PVD)
- Published
- 1998
41. From 2e− to 4e− pathway in the alkaline oxygen reduction reaction on Au(100): Kinetic circumvention of the volcano curve.
- Author
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Li, Yuke, Liu, Bing-Yu, Chen, Yanxia, and Liu, Zhi-Feng
- Subjects
- *
OXYGEN reduction , *ACTIVATION energy , *STANDARD hydrogen electrode , *VOLCANOES , *CHARGE exchange , *CURVES - Abstract
We report the free energy barriers for the elementary reactions in the 2e− and 4e− oxygen reduction reaction (ORR) steps on Au(100) in an alkaline solution. Due to the weak adsorption energy of O2 on Au(100), the barrier for the association channel is very low, and the 2e− pathway is clearly favored, while the barrier for the O–O dissociation channel is significantly higher at 0.5 eV. Above 0.7 V reversible hydrogen electrode (RHE), the association channel becomes thermodynamically unfavorable, which opens up the O–O dissociation channel, leading to the 4e− pathway. The low adsorption energy of oxygenated species on Au is now an advantage, and residue ORR current can be observed up to the 1.0–1.2 V region (RHE). In contrast, the O–O dissociation barrier on Au(111) is significantly higher, at close to 0.9 eV, due to coupling with surface reorganization, which explains the lower ORR activity on Au(111) than that on Au(100). In combination with the previously suggested outer sphere electron transfer to O2 for its initial adsorption, these results provide a consistent explanation for the features in the experimentally measured polarization curve for the alkaline ORR on Au(100) and demonstrate an ORR mechanism distinct from that on Pt(111). It also highlights the importance to consider the spin state of O2 in ORR and to understand the activation barriers, in addition to the adsorption energies, to account for the features observed in electrochemical measurements. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
42. Do Psychiatric Diagnoses Cause Symptoms?
- Author
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Pies, Ronald W. and Ruffalo, Mark L.
- Subjects
Volcanoes ,Health ,Psychology and mental health - Abstract
Imagine that you and your traveling companion are toming the ruins of the ancient city of Pompeii. Your historically uninformed companion asks you, 'So, what caused the destruction of Pompeii?' [...]
- Published
- 2024
43. Conductivity anomalies provide evidence of large scale hydrothermal venting in Lake Taupō.
- Author
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Gibbs, Max, Verburg, Piet, and Scott, Brad
- Subjects
- *
WATER quality monitoring , *WATER quality , *HYDROTHERMAL vents , *LAKES , *VOLCANOES - Abstract
Lake Taupō (Taupō moana) in the central North Island is the largest freshwater lake in Aotearoa/New Zealand. Taupō is also a frequently active and potentially hazardous caldera volcano. Water quality monitoring in Lake Taupō shows possible chemical linkages between the lake and hydrothermal systems under the lake around the Horomatangi Reef. We found that hydrothermal venting, discovered in Lake Taupō in 1998, is not a steady emission of bubbles and geothermal fluid but occasional larger fluid discharges also occur as pulses. These larger discharges contain sulphate and manifest in vertical water column profiles as conductivity anomalies. These appear to be linked to magmatic activity, which can cause earthquakes and other volcanic unrest under the lake. Rising plumes of warm water from these larger hydrothermal events can entrain sediment and other nutrients such as dissolved organic nitrogen up to the lake surface and they can continue for several months. Periods of volcanic unrest are well documented at Taupō volcano and have recently occurred in 2008–9, 2019 and 2022–23. Lake water quality data suggest that the conductivity anomalies may reflect a magmatic 'pulse' of this active volcano and provide evidence of large scale hydrothermal venting in Lake Taupō. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
44. Inference of fracturing zones and degrees of fluid content in the Las Tres Virgenes volcanic complex based on an analysis of seismic anisotropy.
- Author
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Chacón-Hernández, Francisco, Campos-Enríquez, Jose Oscar, Zúñiga, Francisco Ramón, and Lermo-Samaniego, Javier
- Subjects
- *
SHEAR waves , *FLUID inclusions , *FRACTURING fluids , *ANISOTROPY , *VOLCANOES , *SEISMIC anisotropy - Abstract
Anisotropy strength in the Tres Vírgenes Volcanic Complex, Baja California Sur, Mexico, is analyzed employing 558 seismic events collected from 2009 to 2013. It was possible to delineate zones and volumes with the highest fracture densities, which are mainly located between the El Viejo and El Azufre volcanoes and around the La Reforma–El Azufre fault system, near some other mapped faults in the area (e.g., El Azufre, El Partido, El Volcán, El Viejo 1, and El Viejo 2 faults); likewise toward the La Virgen volcano and around the La Virgen-El Campamento and El Volcán faults. Individual delay times reached values of up to 0.16 s and an anisotropy percentage of up to 10.3%, with a pervasive anisotropy observed from at least a hypocentral distance of 3.5 km. High fracturing levels are observed from a depth of 7.0 km. Differences between splitting delays and the dominant frequency peaks obtained from the fast S phases allowed considering fracture systems with different degrees of fluid contents. Fractures with minor fluid contents were assumed for delay times higher than 0.03 s with lower dominant frequency peaks (< 1.0 Hz). Higher concentrations of fluid inclusions were assumed for splitting delays higher than 0.03 s but with larger dominant frequency peaks (> 1.0 Hz). Fractures systems chemically sealed or impermeable sealing caps were assumed for low splitting delays (< 0.02 s) with low dominant frequencies (< 1.0 Hz). These different fracture systems seem to be observed at least from 5- to 6-km depth intervals. Likewise, an analysis of the fast polarization directions with respect to different depth ranges (spanning from 3.0 to 8.0 km) has allowed observations of a strong NW–SE regional fracture system accompanied by minor NE–SW fracture systems. However, noteworthy variations from NW–SE to NE–SW, N–S, and E–W in fast polarization directions in rose diagrams have been preferentially observed for those seismic events deeper than 4–5 and 5–6 km in some areas, which could be indicating the location of magmatic bodies that probably caused the reorientation on fracture systems by changes in the local stress field. These magmatic bodies might be supported by a decrease in the dominant frequency peaks (lower than 1.0 Hz), percentage of anisotropy (from 0.1 to 2.5%), and S-wave velocities (from 1.0 to 2.7 km/s), which seem to be located from the 4.0-km depth but more concentrated from the 5–6-km depth interval. [ABSTRACT FROM AUTHOR]
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- 2024
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45. Evaluation of Sites of Geotouristic Interest on Active Volcanic Island La Palma, Spain for Potential Volcanic Tourism.
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Ramos, William Hernández, Dóniz-Páez, Javier, García-Hernández, Rubén, and Pérez, Nemesio M.
- Abstract
This study focuses on the Sites of Geotouristic Interest (SGIs) on the volcanic island of La Palma, Spain. The objective is to identify, select, characterize and evaluate SGIs, for the first time on this island, in order to promote volcano tourism and diversify the tourist leisure offerings. A variety of methods have been used to identify, select and characterize the SGIs, including bibliographic review, topographic, geological and geomorphological mapping, and field work during the 2021, 2022 and 2023 surveys. To evaluate the SGIs, the criteria developed by Reynard et al. (Geoheritage 8:43-60, 2007, Geoheritage 8:43-60, 2016) have been used, which includes scientific (Vs), additional (Va) and “use and management” (Vum) values. The findings indicate that: 1) the 52 SGIs are well-preserved, many of them are protected; 2) they are easily accessible to tourists; 3) the SGIs are representative of the volcanic geoheritage and the erosion and sedimentary geoforms of the main geological units defined in this active volcanic island. The SGIs have an average Vs value of 0.60, higher than the Va value of 0.46. However, the Vum value needs improvement in terms of the touristic information provided and minimizing the impacts of touristic use. This work provides a comprehensive database for both the public administration and active tourism companies to develop initiatives for volcano tourism in La Palma, contributing to the promotion of geotourism and diversifying their offerings. [ABSTRACT FROM AUTHOR]
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- 2024
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46. Strain Localization at Volcanoes Undergoing Extension: Investigation of Long‐Term Deformation at Krafla and Askja Volcanic Systems in North Iceland.
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Lanzi, Chiara, Sigmundsson, Freysteinn, Parks, Michelle Maree, Geirsson, Halldór, and Drouin, Vincent
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STRETCHING of materials , *FINITE element method , *ROCK deformation , *VOLCANOES , *LAND subsidence - Abstract
Volcanoes in extensional environments may show gradual subsidence over decades during quiescent periods, due to various processes such as magma withdrawal, cooling, contraction, plate spreading and viscoelastic response. If significant rheological anomalies reside in volcano roots, due to the presence of magma and hot rock, they can influence the style of deformation. We use Finite Element Method (FEM) models to explore how strain localization due to extension can lead to volcano deflation. We apply rheological models comprising an elastic layer overlying a viscoelastic domain and include local up‐doming regions of low viscosity material beneath volcanic centers. The models reveal a localized subsidence above the rheological anomaly, influenced by the tectonic extension, and by the up‐doming volume and its viscosity. The models suggest that plate divergence may account for 4–5 mm/yr of observed subsidence at Krafla and Askja volcanic systems (KVS and AVS, respectively) in North Iceland. Plain Language Summary: Extensional stretching may have an important effect on the ground deformation observed at volcanic systems located along a divergent boundary. The physical properties of the crust are altered by the presence of hot material and/or geothermal activity at central volcanoes, compared to the surrounding rocks. We use a two‐layer model consisting of an elastic crustal volume overlying a viscoelastic layer, which locally reaches shallower depth (referred to up‐doming material), to investigate such crustal properties beneath volcanic systems. We explore a wide range of viscosity values in the up‐doming material and elastic layer thickness. The models, applied to investigate observed ground deformation at the Krafla and Askja volcanic systems, suggests that regional stretching with realistic material properties in the crust beneath the volcanic system, fits quite well the observed deformation satellite data at Krafla volcanic system in the 2015–2018 observations, but only a minor contributor to the Askja deformation pattern in the same period. Our modeling approach suggests that any extensive magmatic system undergoing stretching should feature subsidence in relation to the presence of hot material/magma mush beneath volcanic systems. Key Points: Gradual deflation (mm to cm per year) over decades has been observed at the Krafla and Askja volcanic systems in IcelandNumerical models show that deflation is induced by stretching across volcanic systems and dependent on their crustal rheological anomaliesFor the 2015–2018 period, an extensional model can broadly explain observed deflation at Krafla, but only ∼25%−30% at the Askja caldera [ABSTRACT FROM AUTHOR]
- Published
- 2024
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47. High-resolution topography reveals morphological changes of Stromboli volcano following the July 2024 eruption.
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Civico, Riccardo, Ricci, Tullio, Cecili, Alessandro, and Scarlato, Piergiorgio
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DIGITAL elevation models ,VOLCANIC eruptions ,VOLCANOES ,MODEL airplanes ,TOPOGRAPHY - Abstract
The July 2024 eruption of Stromboli volcano has been characterised by the manifestation, at variable intensity, of the entire repertoire of volcanic events that Stromboli volcano is capable of, and is by far the one that has most changed the morphology of the crater terrace and of the Sciara del Fuoco slope in the last decades. We present the results of an Unoccupied Aircraft System (UAS) survey performed on 14 July 2024 and consisting of 4,988 visible and thermal photographs coupled with Structure-from-Motion photogrammetry that allowed us to produce a high-resolution (0.2 m/pixel) Digital Surface Model (DSM). We documented the profound morphological changes of the Stromboli volcano resulting from the 4–11 July 2024 eruption and obtained elevation and volume change estimates by differencing our survey and a UAS-derived pre-event surface (24 May 2024). [ABSTRACT FROM AUTHOR]
- Published
- 2024
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48. Using Smart Climate-Based Technology to Predict Water Availability in a Volcanic Landscape of Central Java, Indonesia – A Pathway to Conservation Strategy.
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Harlin Jennie Pulungan, Nur Ainun, Islami, Jihan Dwi, Muttaqin, Andi Syahid, and Sartohadi, Junun
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WATER supply ,PRECISION farming ,WATER conservation ,VOLCANOES ,MODES of variability (Climatology) - Abstract
High need for precision agriculture today has been associated with the completeness of the data available. The application of smart technology becomes the main alternative for fulfilling incomplete data and predicting future data. This paper presents the results of a research that aims to monitor and to predict water availability for determining conservation strategy on water availability using time series data from satellite rainfall, spanning from 2007 to 2022. We employed the innovative use of remote sensing technology, global rainfall measurement (GPM) and Climate Hazards Group InfraRed Rainfall with Station data (CHIRPS), to assess and correct satellite-derived rainfall estimates against ground-based observations. Conducted in the Serang watershed of Mount Merbabu’s volcanic landscape, the research employs a quantitative descriptive approach. We used coupled climate models MIROC6 and MRI-ESM2-0 in the CMIP-6 Framework for rainfall projections 2023–2030, then continued with the F.J. Mock model simulations for water availability projection. Our findings reveal a significant impact of climate change on water availability over the decade, with the most extreme conditions observed in 2029 and 2030, where the increasing of water availability reaching 10 m3 /s. The results showed that CHIRPS performed well in describing rainfall data. The novelty of this research highlighting the potential of: firstly, the use of satellite rainfall data for this specific region has not been extensively studied before; secondly, the discovered impacts of climate change to the water availability are particularly noteworthy, and thus contributing to the sustainability of agricultural practices in response to climate change. A limitation of this study is the short investigation period of just one decade, which does not fully capture the long-term impacts of climate change. Future research is recommended to utilize satellite data over extended periods to better represent extreme climate events and derive drought and wetness patterns over durations exceeding one decade. [ABSTRACT FROM AUTHOR]
- Published
- 2024
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49. Precursory crater contraction associated with the 2017 eruption of Shinmoe-dake volcano (Japan) detected by PALSAR-2 and Sentinel-1 InSAR.
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Himematsu, Yuji, Ozawa, Taku, and Aoki, Yosuke
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VOLCANIC craters , *SEA level , *TIME series analysis , *VOLCANOES , *DEFORMATIONS (Mechanics) - Abstract
The time series of PALSAR-2 and Sentinel-1 images reveal inflation at the volcanic flank and contraction at the crater for approximately 5 months before the 2017 eruption of Shinmoe-dake volcano, Japan. While the observation of inflation at the volcano's flank is ubiquitous, few studies have reported crater contraction preceding an eruption. The flank inflation stopped after the 2017 eruption, while the contraction at the crater continued until the 2018 eruption. We found that a pipe-shaped deformation source above sea level best fits the observation preceding the 2017 eruption. Suppose the flux of ejected materials constrains the conduit radius during the previous 2011 eruption. In that case, the amount of deformation of the pipe-shaped deformation source, whether open or closed at its top, is too large to be realistic. Although constraining the conduit radius from the eruption flux overestimates the pressure change of the pipe-shaped deformation source, water-saturated fractures along the volcanic conduit could extend the effective conduit radius of the pressure source. We propose one potential scenario for the mechanism of the crater contraction preceding volcanic eruptions based on the combination of compaction due to cooling by ambient groundwater and material withdrawal within the conduit. The groundwater inflows from the ambient aquifer through cracks in the porous conduit wall, which are generated by conduit expansion during the magma ascent. Decoupling from the conduit wall due to a decrease in volume of the material promotes material instability and crater contraction. The interaction between the groundwater and the magma triggers the 2017 eruption of Shinmoe-dake volcano, as previous studies have reported. [ABSTRACT FROM AUTHOR]
- Published
- 2024
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50. Pleistocene to recent evolution of Mocho-Choshuenco volcano during growth and retreat of the Patagonian Ice Sheet.
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Moreno-Yaeger, Pablo, Singer, Brad S., Edwards, Benjamin R., Jicha, Brian R., Nachlas, William O., Kurz, Mark D., Breunig, Rachel E., Fustos-Toribio, Ivo, Antipán, Daniel Vásquez, and Piergrossi, Ella
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ICE sheets , *LAST Glacial Maximum , *EXPLOSIVE volcanic eruptions , *PLEISTOCENE Epoch , *VOLCANOES , *VOLCANIC eruptions , *LAVA - Abstract
Mocho-Choshuenco volcano (39.9°S, 72.0°W) produced ~75 explosive eruptions following retreat of the >1.5-km-thick Patagonian Ice Sheet associated with the local Last Glacial Maximum (LGM, from 35 to 18 ka). Here, we extend this record of volcanic evolution to include pre- and syn-LGM lavas that erupted during the Pleistocene. We establish a long-term chronology of magmatic and volcanic evolution and evaluate the relationship between volcanism and loading/unloading of the Patagonian Ice Sheet via twenty-four 40Ar/39Ar and two 3He age determinations integrated with stratigraphy and whole-rock compositions of lava flows and glass compositions of tephra. Our findings reveal that the edifice is much younger than previously thought and preserves 106 km3 of eruptive products, of which 50% were emplaced immediately following the end of the penultimate glaciation and 20% after the end of the LGM. A period of volcanic inactivity between 37 and 26 ka, when glaciers expanded, was followed by the eruption of incompatible element-rich basaltic andesites. Several of these syn-LGM lavas dated between 26 and 16 ka, which crop out at 1500-1700 m above sea level, show ice contact features that are consistent with emplacement against a 1400- to 1600-m-thick Patagonian Ice Sheet. Small volume dacitic eruptions and two explosive rhyolitic eruptions dominate the volcanic output from 18 to 8 ka, when the Patagonian Ice Sheet began to retreat rapidly. We hypothesize that increased lithostatic loading as the Patagonian Ice Sheet grew prohibited dike propagation, thus stalling the ascent of magma, promoting growth of at least three discrete magma reservoirs, and enhancing minor crustal assimilation to generate incompatible elementrich basaltic andesitic to dacitic magmas that erupted between 26 and 17 ka. From an adjacent reservoir, incompatible element-poor dacites erupted from 17 to 12 ka. These lava flows were followed by the caldera-forming eruption at 11.5 ka of 5.3 km3 of rhyolite from a deeper reservoir atop which a silicic melt lens had formed and expanded. Subsequent eruptions of oxidized dacitic magmas from the Choshuenco cone from 11.5 to 8 ka were followed by andesitic to dacitic eruptions at the more southerly Mocho cone, as well as small flank vent eruptions of basaltic andesite at 2.5 and 0.5 ka. This complex history reflects a multi-reservoir plumbing system beneath Mocho-Choshuenco, which is characterized by depths of magma storage, oxidation states, and trace element compositions that vary over short periods of time (<2 k.y.). [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
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