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17 results on '"Ofori N. Pearson"'

1. Geologic models underpinning the 2018 US Geological Survey assessment of hydrocarbon resources in the Eagle Ford Group and associated Cenomanian–Turonian strata, United States Gulf Coast, Texas

Author

Katherine J. Whidden, Janet K. Pitman, Heidi M. Leathers-Miller, Ofori N. Pearson, Nicholas J. Gianoutsos, Scott A. Kinney, Justin E. Birdwell, Stanley T. Paxton, Lauri A. Burke, and Russell F. Dubiel

Subjects
Fuel Technology, Geochemistry and Petrology, Earth and Planetary Sciences (miscellaneous), Energy Engineering and Power Technology, Geology
Published
2022
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2. Assessment of undiscovered oil and gas resources in the Upper Cretaceous Austin Chalk and Tokio and Eutaw Formations, U.S. Gulf Coast, 2019

Author

Marilyn E. Tennyson, Tracey J. Mercier, Nicholas J. Gianoutsos, Geoffrey S. Ellis, Phuong A. Le, Stanley T. Paxton, Katherine J. Whidden, Kristen R. Marra, Katherine L. French, Christopher J. Schenk, Thomas M. Finn, Brian A. Varela, Ofori N. Pearson, Ronald M. Drake, Justin E. Birdwell, Heidi M. Leathers-Miller, Janet K. Pitman, Stephanie B. Gaswirth, Cheryl A. Woodall, Seth S. Haines, Scott A. Kinney, Chilisa M. Shorten, and Lauri A. Burke

Subjects
Oceanography, business.industry, Fossil fuel, Geochemistry, business, Cretaceous, Geology
Published
2020
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4. U.S. Geological Survey input-data forms for the assessment of the Upper Jurassic Haynesville Formation, U.S. Gulf Coast, 2016

Author

Timothy R. Klett, Janet K. Pitman, Katherine J. Whidden, Marilyn E. Tennyson, Phuong A. Le, Lauri A. Burke, Sarah J. Hawkins, Seth S. Haines, Russell F. Dubiel, Heidi M. Leathers-Miller, Stephanie B. Gaswirth, Scott A. Kinney, Stanley T. Paxton, Christopher J. Schenk, Thomas M. Finn, Ofori N. Pearson, Nicholas J. Gianoutsos, Brian A. Varela, Kristen R. Marra, and Tracey J. Mercier

Subjects
Paleontology, Geological survey, Geology
Published
2018
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5. Assessment of undiscovered oil and gas resources of the Susitna Basin, southern Alaska, 2017

Author

Christopher J. Potter, Zenon C. Valin, Richard G. Stanley, Timothy R. Klett, Phuong A. Le, Christopher J. Schenk, Jeffrey D. Phillips, Heidi M. Leathers-Miller, Kristen A. Lewis, Debra K. Higley, Thomas M. Finn, David W. Houseknecht, Ofori N. Pearson, Cheryl A. Woodall, Paul G. Lillis, Margarita V. Zyrianova, Seth S. Haines, Marilyn E. Tennyson, Michael E. Brownfield, Kristen R. Marra, Anjana K. Shah, Ronald M. Drake, Tracey J. Mercier, Peter J. Haeussler, and Stanley T. Paxton

Subjects
business.industry, Fossil fuel, Geochemistry, Structural basin, business, Geology
Published
2018
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6. U.S. Geological Survey input-data forms for the assessment of the Upper Jurassic Bossier Formation, U.S. Gulf Coast, 2016

Author

Stanley T. Paxton, Janet K. Pitman, Scott A. Kinney, Nicholas J. Gianoutsos, Ofori N. Pearson, Katherine J. Whidden, Russell F. Dubiel, Christopher J. Schenk, Lauri A. Burke, Timothy R. Klett, Heidi M. Leathers-Miller, Tracey J. Mercier, Seth S. Haines, Brian A. Varela, Phuong A. Le, Thomas M. Finn, Stephanie B. Gaswirth, Sarah J. Hawkins, Kristen R. Marra, and Marilyn E. Tennyson

Published
2018
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7. Assessment of undiscovered conventional oil and gas resources in the downdip Paleogene formations, U.S. Gulf Coast, 2017

Author

Tracey J. Mercier, Colin A. Doolan, Christopher J. Schenk, James L. Coleman, Timothy R. Klett, Marc L. Buursink, Phuong A. Le, Heidi M. Leathers-Miller, Stephanie B. Gaswirth, Michael E. Brownfield, Janet K. Pitman, Cheryl A. Woodall, William H. Craddock, Katherine J. Whidden, Marilyn E. Tennyson, Catherine B. Enomoto, Ofori N. Pearson, and Kristen R. Marra

Subjects
business.industry, Fossil fuel, Geochemistry, business, Paleogene, Geology
Published
2018
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8. Assessment of undiscovered oil and gas resources in the Eagle Ford Group and associated Cenomanian–Turonian Strata, U.S. Gulf Coast, Texas, 2018

Author

Phuong A. Le, Michael E. Brownfield, Janet K. Pitman, Scott A. Kinney, Cheryl A. Woodall, Heidi M. Leathers-Miller, Stephanie B. Gaswirth, Marilyn E. Tennyson, Justin E. Birdwell, Stanley T. Paxton, Katherine J. Whidden, Seth S. Haines, Tracey J. Mercier, Nicholas J. Gianoutsos, Ofori N. Pearson, Katherine L. French, Kristen R. Marra, Christopher J. Schenk, Lauri A. Burke, and Russell F. Dubiel

Subjects
Eagle, biology, business.industry, biology.animal, Group (stratigraphy), Fossil fuel, Cenomanian, business, Archaeology, Geology
Published
2018
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9. Assessment of undiscovered oil and gas resources in the Bossier Formation, U.S. Gulf Coast, 2016

Author

Heidi M. Leathers-Miller, Stephanie B. Gaswirth, Nicholas J. Gianoutsos, Russell F. Dubiel, Thomas M. Finn, Katherine J. Whidden, Marilyn E. Tennyson, Ofori N. Pearson, Phuong A. Le, Sarah J. Hawkins, Lauri A. Burke, Timothy R. Klett, Seth S. Haines, Stanley T. Paxton, Scott A. Kinney, Janet K. Pitman, Christopher J. Schenk, Brian A. Varela, Kristen R. Marra, and Tracey J. Mercier

Subjects
Petroleum engineering, business.industry, Fossil fuel, business, Geology
Published
2017
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10. Assessment of undiscovered oil and gas resources of the Mississippian Sunbury shale and Devonian–Mississippian Chattanooga shale in the Appalachian Basin Province, 2016

Author

Ronald M. Drake, Christopher J. Schenk, William A. Rouse, Colin A. Doolan, Phuong A. Le, Debra K. Higley, Thomas M. Finn, Ofori N. Pearson, Michael H. Trippi, Nicholas J. Gianoutsos, Timothy R. Klett, Tracey J. Mercier, Marilyn E. Tennyson, Michael E. Brownfield, and Catherine B. Enomoto

Subjects
business.industry, Fossil fuel, Geochemistry, Structural basin, business, Petrology, Oil shale, Devonian, Geology
Published
2016
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12. Assessment of undiscovered oil and gas resources in sandstone reservoirs of the Cotton Valley Group, U.S. Gulf Coast, 2015

Author

Katherine J. Whidden, Nicholas J. Gianoutsos, Michael E. Brownfield, Marilyn E. Tennyson, Russell F. Dubiel, Janet K. Pitman, Timothy R. Klett, Lauri A. Burke, Stephanie B. Gaswirth, Heidi M. Leathers, Stanley T. Paxton, Scott A. Kinney, Laura R.H. Biewick, Tracey J. Mercier, Jennifer D. Eoff, Christopher J. Schenk, Ronald R. Charpentier, and Ofori N. Pearson

Subjects
Petroleum engineering, business.industry, Group (stratigraphy), Fossil fuel, business, Geology
Published
2015
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13. Assessment of undiscovered oil and gas resources in conventional and continuous petroleum systems in the Upper Cretaceous Eagle Ford Group, U.S. Gulf Coast region, 2011

Author

Richard M. Pollastro, Laura R.H. Biewick, Troy A. Cook, Janet K. Pitman, Christopher J. Schenk, Scott A. Kinney, Ofori N. Pearson, Michael D. Lewan, Lauri A. Burke, Russell F. Dubiel, Krystal M. Pearson, Timothy R. Klett, and Ronald R. Charpentier

Subjects
Eagle, biology, business.industry, Fossil fuel, Geochemistry, Cretaceous, chemistry.chemical_compound, Oceanography, chemistry, biology.animal, Group (stratigraphy), Petroleum, business, Geology
Published
2012
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14. Assessment of undiscovered oil and gas resources in Jurassic and Cretaceous strata of the Gulf Coast, 2010

Author

Ofori N. Pearson, Kris Dennen, Lauri A. Burke, Elizabeth L. Rowan, Brett J. Valentine, Michael D. Lewan, Timothy R. Klett, Matthew D. Merrill, Catherine B. Enomoto, Alexander W. Karlsen, Richard M. Pollastro, James L. Coleman, Paul C. Hackley, Troy A. Cook, Janet K. Pitman, Christopher J. Schenk, Sharon M. Swanson, Laura R.H. Biewick, Krystal M. Pearson, Colin A. Doolan, Russell F. Dubiel, Peter D. Warwick, Ronald R. Charpentier, and Scott A. Kinney

Subjects
Paleontology, business.industry, Fossil fuel, business, Geology, Cretaceous
Published
2011
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15. Assessment of undiscovered oil and gas resources of the Anadarko Basin Province of Oklahoma, Kansas, Texas, and Colorado, 2010

Author

Timothy R. Klett, T.A. Cook, Christopher J. Schenk, M.M. Abbott, Geoffrey S. Ellis, Joseph R. Hatch, Stephanie B. Gaswirth, Ronald R. Charpentier, Nicholas J. Gianoutsos, Mark J. Pawlewicz, Philip H. Nelson, Richard M. Pollastro, Debra K. Higley, and Ofori N. Pearson

Subjects
Geography, business.industry, Environmental protection, Fossil fuel, Structural basin, business, Water resource management
Published
2011
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17. Structural geology and regional tectonic significance of the Ramgarh thrust, Himalayan fold-thrust belt of Nepal

Author

Peter G. DeCelles and Ofori N. Pearson

Subjects
geography, geography.geographical_feature_category, Thrust, Fold (geology), Fault (geology), Nappe, Geophysics, Geochemistry and Petrology, Fold and thrust belt, Main Central Thrust, Thrust fault, Petrology, Foreland basin, Geology, Seismology
Abstract

[1] The Ramgarh thrust is one of the major fault systems of the Himalayan thrust belt in Nepal and northern India. The Ramgarh thrust sheet is ∼0.2–2.0 km thick and can be traced along strike the entire length of the Himalaya in Nepal. The fault generally places the oldest Paleoproterozoic rocks in the Lesser Himalayan series upon younger Lesser Himalayan rocks or lower Miocene foreland basin deposits. Regional balanced cross sections suggest that the Ramgarh thrust had at least ∼120 km of initial south vergent displacement. Subsequently, the frontal part of the thrust experienced further slip as the roof thrust for a large duplex in underlying Lesser Himalayan rocks. Ramgarh hanging wall strata are greenschist-grade phyllite, quartzite, and augen gneiss, all of which locally exhibit phyllonitic and mylonitic fabrics that indicate a top-to-the-south sense of shear. Structural fabrics in the Ramgarh thrust sheet are generally parallel to the fabrics in rocks above and below the thrust sheet. Regional and local mapping of the Ramgarh thrust in Nepal demonstrates that the fault always places a hanging wall flat upon a footwall flat, except where local lateral ramps complicate its geometry. Similarly, the structurally overlying Main Central thrust always places a hanging wall flat in Greater Himalayan series rocks upon the regionally flat Ramgarh thrust sheet. These geometric relationships preclude kinematic and thermal models that elevate Greater Himalayan and lower Lesser Himalayan rocks along high-angle thrust ramps in the vicinity of the present traces of the Ramgarh and Main Central thrust faults. Instead, the corresponding footwall ramps for these thrusts must be located more than 100 km north of the current trace of the Main Central thrust. The present steep dips of the Ramgarh and Main Central thrust sheets can be attributed to tilting during emplacement of structurally lower thrust sheets within a large antiformal duplex that occupies most of the Lesser Himalayan zone. The Ramgarh thrust sheet overlaps a bed length of at least 100 km in lower Miocene foreland basin deposits, indicating that a significant amount of displacement on the thrust must have occurred after ∼15 Ma. Growth of the Lesser Himalayan duplex and additional slip on the frontal part of the Ramgarh thrust occurred from ∼12 to 5 Ma. The presence of a major greenschist-grade metasedimentary thrust sheet composed of Lesser Himalayan rocks directly below the Main Central thrust suggests that the famous “inverted metamorphism” in this region is a result of structural inversion. Similarly, the concept of a broad zone of intense shear strain related exclusively to emplacement of the Main Central thrust sheet is probably invalid in Nepal.

Published
2005
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