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Your search keyword '"MINING geology"' showing total 7 results
Start Over Descriptor "MINING geology" Topic geophysical surveys
7 results on '"MINING geology"'

1. The abandoned underground mine as a semi-natural ecosystem: The story of Flaschar's Mine (Czechia).

Author

Lenart, Jan, Schuchová, Kristýna, Kašing, Martin, Falteisek, Lukáš, Cimalová, Šárka, Bílá, Jana, Ličbinská, Monika, and Kupka, Jiří

Subjects
*ABANDONED mines, *CONCEPTUAL models, *ECOSYSTEMS, *MINES & mineral resources, *STRUCTURAL geology, *SUBWAYS
Abstract

[Display omitted] • Conceptual model of abandoned underground mine is introduced. • Abandoned underground mine is vulnerable and fragile with time-limited stability. • Its environment is azonal and fast evolving. • Abandoned underground mine is an important semi-natural ecosystem. We have investigated a typical abandoned underground slate mine situated in the Bohemian Massif (Central Europe) in order to describe its elementary components and to outline the varied relations among them. Based on the results from geological, geomorphological, hydrological, microclimatic, and biological investigation, we have defined the abandoned underground mine as an important but overlooked semi-natural ecosystem that represents an azonal and relatively fast evolving environment. Unlike any other studies published so far, we have found it also vulnerable in terms of fragility and time-limited stability. Our results together with a comprehensive discussion highlight the fundamental features of the abandoned underground mine and finally serve as a basis on which we introduce a conceptual model of the abandoned underground mine. The complex and interdisciplinary perception of abandoned underground mines is crucial for appropriate environmental assessment, tourist management, natural protection or remediation. [ABSTRACT FROM AUTHOR]

Published
2022
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2. ANALYSES OF HISTORIC U.S. BUREAU OF MINES SAMPLES FOR GEOCHEMICAL TRACE-ELEMENT AND RARE-EARTH-ELEMENT DATA FROM THE SELAWIK HILLS, NORTHWESTERN ALASKA.

Author

Werdon, Melanie B. and Blessington, Michael J.

Subjects
*ANALYTICAL geochemistry, *MINING geology, *RARE earth metals, *ORE sampling & estimation, *GEOPHYSICAL surveys, *GEOCHEMICAL surveys
Abstract

The article discusses the analysis of geochemical specimen from the Geological Survey and Bureau of Mines (USBM) by the Alaska Division of Geological & Geophysical Surveys (DGGS). Topics include the evaluation of Strategic and Critical Minerals (SCM) content of northwestern Alaska Selawik Hills samples, the documentation of location coordinates and pulp preparation methodology, and the analysis of rare earth and ore elements by ALS Minerals Laboratories.

Published
2014
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3. ANALYSES OF HISTORIC U.S. BUREAU OF MINES SAMPLES FOR GEOCHEMICAL TRACE-ELEMENT AND RARE-EARTH-ELEMENT DATA FROM KOOK LAKE, SITKA QUADRANGLE, ALASKA.

Author

Werdon, Melanie B. and Blessington, Michael J.

Subjects
*MINING geology, *ANALYTICAL geochemistry, *RARE earth metals, *GEOLOGICAL surveys, *GEOPHYSICAL surveys
Abstract

The article discusses the geochemical analysis by the Division of Geological & Geophysical Surveys (DGGS) of historic Kook Lake, Sitka Quadrangle, Alaska specimen from the Geological Survey and Bureau of Mines (USBM). Topics included are the evaluation of Strategic and Critical Minerals (SCM) content, the identification of sample coordinates and pulp preparation details, and analytical testing of ore and rare earth elements with ICP-MS, Au-GRAV21 and 4-acid methods by ALS Minerals Laboratories.

Published
2014
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4. ANALYSES OF HISTORIC U.S. BUREAU OF MINES SAMPLES FOR GEOCHEMICAL TRACE-ELEMENT AND RARE-EARTH-ELEMENT DATA FROM THE VABM BEND AREA, CHARLEY RIVER AND EAGLE QUADRANGLES, EAST-CENTRAL ALASKA.

Author

Werdon, Melanie B. and Blessington, Michael J.

Subjects
*MINING geology, *RARE earth metals, *ORE sampling & estimation, *GEOPHYSICAL surveys, *GEOLOGICAL surveys
Abstract

The article discusses the analysis of historic tungsten samples from the Geological Survey and Bureau of Mines (USBM) by the Alaska Division of Geological & Geophysical Surveys (DGGS). Topics included are the evaluation of Strategic and Critical Minerals (SCM) content of east-central Alaska Charley River and Eagle quadrangle specimen, the documentation of location coordinates and pulp preparation methodology, and the analysis by ALS Minerals Laboratories of rare earth and ore elements.

Published
2014
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5. ANALYSES OF HISTORIC U.S. BUREAU OF MINES SAMPLES FOR GEOCHEMICAL TRACE-ELEMENT AND RARE-EARTH-ELEMENT DATA FROM THE RAY RIVER WATERSHED, AND KANUTI AND HODZANA RIVERS UPLANDS, CENTRAL ALASKA.

Author

Werdon, Melanie B. and Blessington, Michael J.

Subjects
*MINING geology, *GEOLOGICAL surveys, *GEOPHYSICAL surveys, *RARE earth metals, *ORE sampling & estimation
Abstract

The article discusses the analysis of geochemical samples from the Geological Survey and Bureau of Mines (USBM) by the Alaska Division of Geological & Geophysical Surveys (DGGS). Topics included are the evaluation of Strategic and Critical Minerals (SCM) content of central Alaska Ray River watershed specimen, the documentation of location coordinates and pulp preparation methodology, and the analysis of rare earth and ore elements by ALS Minerals Laboratories.

Published
2014
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6. ANALYSES OF HISTORIC U.S. BUREAU OF MINES SAMPLES FOR GEOCHEMICAL TRACE-ELEMENT AND RARE-EARTH-ELEMENT DATA FROM THE CIRCLE MINING DISTRICT, WESTERN CRAZY MOUNTAINS, AND THE LIME PEAK AREA OF THE WHITE MOUNTAINS, CIRCLE QUADRANGLE, EAST-CENTRAL ALASKA.

Author

Werdon, Melanie B. and Blessington, Michael J.

Subjects
*MINING geology, *ORE sampling & estimation, *RARE earth metals, *GEOLOGICAL surveys, *GEOPHYSICAL surveys
Abstract

The article discusses the re-analysis of old geochemical samples from the Geological Survey and Bureau of Mines (USBM) by the Alaska Division of Geological & Geophysical Surveys (DGGS). Topics include the evaluation of Strategic and Critical Minerals (SCM) content of east-central Alaska Circle Quadrangle mountain samples, the documentation of sample collection and pulp preparation methodology, and the analysis of ore and rare earth elements with fusion, 4-acid and Ag-GRAV21 techniques.

Published
2014
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7. ANALYSES OF HISTORIC U.S. BUREAU OF MINES SAMPLES FOR GEOCHEMICAL TRACE-ELEMENT AND RARE-EARTH-ELEMENT DATA FROM TIN OCCURRENCES ASSOCIATED WITH THE OHIO CREEK PLUTON, SOUTH-CENTRAL ALASKA.

Author

Werdon, Melanie B. and Blessington, Michael J.

Subjects
*MINING geology, *ANALYTICAL geochemistry, *RARE earth metals, *GEOLOGICAL surveys, *GEOPHYSICAL surveys
Abstract

The article discusses the rock geochemical analysis by the Alaska Division of Geological & Geophysical Surveys (DGGS) of Ohio Creek, Alaska pluton samples from the Geological Survey and Bureau of Mines (USBM). Topics include the assessment of Strategic and Critical Minerals (SCM) content, the identification of sample collection and pulp preparation details, and the analytical testing of ore and rare earth elements with fusion, 4-acid and Ag-GRAV21 techniques.

Published
2014
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