Zobrazeno 1 - 10 of 13 pro vyhledávání: '"Carol A. Gent"'
1
Using the geologic setting of talc deposits as an indicator of amphibole asbestos content
Autor: Carol A. Gent, Stephen J. Sutley, Bradley S. Van Gosen, Heather A. Lowers
Publikováno v: Environmental Geology. 45:920-939
This study examined commercial talc deposits in the U.S. and their amphibole-asbestos content. The study found that the talc-forming environment directly influenced the amphibole and amphibole-asbestos content of the talc deposit. Large talc district
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b0383d4c90aaae782605cc17067b7a25
https://doi.org/10.1007/s00254-003-0955-2
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2
Lead and sulfur isotope investigation of Paleozoic sedimentary rocks from the southern Midcontinent of the United States; implications for paleohydrology and ore genesis of the Southeast Missouri lead belts
Autor: Elwin L. Mosier, Frank A. Podosek, Carol A. Gent, Joyce C. Brannon, Cliff D. Taylor, Martin B. Goldhaber, John N. Aleinikoff, Bruce R. Doe, Stanley E. Church
Publikováno v: Economic Geology. 90:1875-1910
This study utilizes Pb isotope data to identify flow paths and Pb sources for Mississippi Valley-type ores in the midcontinent of the United States with emphasis on the Old and New Lead Belt subdistricts of southeast Missouri. Nearly 150 new analyses
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::d2d59536f42e52c00f5e9397506c0728
https://doi.org/10.2113/gsecongeo.90.7.1875
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3
Structural geology, age, and mechanisms of gold vein formation at the Kensington and Jualin deposits, Berners Bay District, Southeast Alaska
Autor: Lance J. Miller, Richard J. Goldfarb, Carol A. Gent, Lawrence W. Snee, Richard A. Kirkham
Publikováno v: Economic Geology. 90:343-368
The Berners Bay district at the north end of the Juneau gold belt, southeast Alaska, contains a series of structurally controlled mesothermal gold-bearing quartz veins. The 106 Ma Jualin Diorite, which intrudes metabasalt of the Wrangellia terrane, h
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::f01f598fbeb56e914424779f8715d730
https://doi.org/10.2113/gsecongeo.90.2.343
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4
Oxygen, hydrogen, and sulfur isotope studies in the Juneau gold belt, southeastern Alaska; constraints on the origin of hydrothermal fluids
Autor: Carol A. Gent, W. J. Pickthorn, Rainer J. Newberry, Richard J. Goldfarb
Publikováno v: Economic Geology. 86:66-80
The delta 18 O values of gold-bearing quartz from the Juneau gold belt range from 15.2 to 20.8 per mil, indicating that ore fluid values ranged from 7.2 to 12.8 per mil at an estimated temperature of 300 degrees C. Hydrothermal micas from many of the
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::11b401c23e756e7c6dc480cedb8f2ef3
https://doi.org/10.2113/gsecongeo.86.1.66
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5
Materials Characterization of Dusts Generated by the Collapse of the World Trade Center
Autor: Geoffrey S. Plumlee, Gregory P. Meeker, Todd M. Hoefen, Heather A. Lowers, Gregg A. Swayze, Roger N. Clark, Amy M. Bern, Carol A. Gent, Stephen J. Sutley, Isabelle K. Brownfield
Publikováno v: ACS Symposium Series ISBN: 9780841239166
The major inorganic components of the dusts generated from the collapse of the World Trade Center buildings on September 11, 2001 were concrete materials, gypsum, and man-made vitreous fibers. These components were likelyderived from lightweight Port
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::d3db4c814eede2b72b277056e10b281d
https://doi.org/10.1021/bk-2006-0919.ch005
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8
Epithermal Mercury-Antimony and Gold-Bearing Vein Lodes of Southwestern Alaska
Autor: John E. Gray, Lawrence W. Snee, Carol A. Gent, Frederic H. Wilson
Epithermal mineral deposits and occurrences of southwestern Alaska consist of Hg-Sb and goldand sulfidebearing vein lodes. Numerous Hg-Sb lodes are located throughout a region measuring several tens of thousands of square kilometers in and surroundin
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::369aaec37a2fbba33aa7d7879ddb90f7
https://doi.org/10.5382/mono.09.10
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10
Determination of chloride in geological samples by ion chromatography
Autor: Stephen A. Wilson, Carol A. Gent
Publikováno v: Analytica Chimica Acta. 148:299-303
Samples of silicate rocks are prepared by sodium carbonate fusion and then treated by ion chromatography. The method was tested for geological standards with chloride concentration between 0.003 and 3%. Observed chloride concentrations comparedd favo
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::f128e8c53548c7cb7f1cc7d31a988133
https://doi.org/10.1016/s0003-2670(00)85176-4
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