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Coupled Thermal, Mechanical, Chemical, and Hydraulic Phenomena in Ore Formation
Meaningful and reproducible domestic and international mineral-resource assessments as well as interpreting the
effects of mineralized and mined ground on the environment require scientific understanding of the processes that
localize mineralizing hydrothermal systems and the ores within them and quantitative mineral-deposit models derived
from this understanding. We currently do not understand (1) where within geologically permissive terranes mineralizing
hydrothermal systems are likely to occur, (2) the geologic conditions and interdependent natural phenomena necessary
for the deposition of ore-grade material, (3) how climate and topography affect the ore-forming potential of
hydrothermal systems, (4) what conditions are conducive to the formation of "giant" or "world-class" deposits, and
(5) what conditions lead to the economic "failure" of a hydrothermal system to form substantial tonnages of highgrade
material within it.
Project Chief:
Byron Berger
Box 25046 Denver Federal Center MS 964
Denver, CO 80225
Phone: (303) 236-5533
Email: bberger
Products
Posters
- Berger, B.R., Goldhaber, M.B., Hildenbrand, T., and Wanty, R.B., 1998, Origin of Carlin-style gold deposits: coupled regional fluid flow, core-complex related extension, strike-slip faults, and magmatism: Geological Society of America Abstracts
with Programs, v. 30, no. 7, p. 371. View Berger 1998 GSA abstract.
Presentations
- Anderson, R.E., Berger, B., and Snee, L.W., 2000, Heterogenous uplift and tilting of basement blocks in an extensional tectonic setting, Wassuk Range-Coal Valley area, Nevada: Geological Society of America Abstracts
with Programs, v. 32, no.
7, p. 43. View Anderson GSA abstract.
- Berger, B.R., Phillips, J.D., and Ridley, W.I., 2000, The role of basement
structures in the localization of Laramide mineralization: Examples from
the Patagonia Mountains, south-central Arizona: Geological Society of America
Abstracts with Programs, v. 32, no. 7, p. 393.
View 2000 Berger GSA abstract.
- Berger, B.R., Snee, L.W., and Tingley J.V., 1999, Implications of new structural
and 40Ar/39Ar data
on hydraulic evolution of epithermal veins and ore formation, Aurora and
Bode mining districts, Nevada-California: Geological Society of America Abstracts
with Programs, v. 31, no. 7, p. 94. View
1999 Berger GSA abstract.
- Fifarek, R.H., Denny, F.B., Snee, L.W., and Miggins, D.P., 2001, Permian igneous activity in southeastern Illinois and western Kentucky: Implications for tectonism and economic resources: Geological Society of America Abstracts
with Programs, v. 33, no. 6, p. 420. View Fifarek GSA abstract.
Reports
- Henley, R.W., and Berger, B.R., 2000, Self-ordering and complexity in epizonal
mineral deposits: Annual Reviews in Earth and Planetary Science, v. 28, p. 669-719.
- Hildenbrand, T.G., Berger, B., Jachens, R.C., and Ludington S., 2000, Regional crustal structures and their relationship to the distribution of ore deposits in the western United States: Economic Geology, v. 95, p. 1583-1603.
- Hildrenbrand, T.G., Berger, B., Jachens, R.C., and Ludington, S., 2001,
Utility of magnetic and gravity data in evaluating regional control on mineralization:
Examples from the western United States, in Richards, J.P., and Tosdal, R.M.,
eds., Society of Economic Geologists, Reviews in Economic Geology, v. 14, p. 75-109.
- John, D.A., 2001, Miocene and early Pliocene epithermal gold-silver deposits
in the nothern Great Basin, western United States: Characteristics, distributution,
and relationship to magmatism: Economic Geology, v. 96, p. 1827-1853.
- U.S. Geological Survey, 2001, Six Aeromagnetic Surveys in Nevada and California: A Web Site for Distribution of Dat: U.S. Geological Survey Open-File Report 01-0145. Available on-line at http://pubs.usgs.gov/of/2001/ofr-01-0145/.
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