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Metals in Basinal Brines and Petroleum
objectives of this study were to improve understanding of (1) the sources of
metals and nutrients in sedimentary basins, (2) the controls on their incorporation
into brine and petroleum, (3) their mechanisms of deposition on the sea floor,
(4) their effects on aquatic life in the basins, (5) and their fate in the
environment during mineral and petroleum resource exploitation. These goals
were accomplished through the following integrated tasks; Task 1: Studies
of ancient ore deposits, secondary minerals in oil reservoirs, and fluid inclusions;
Task 2: Laboratory experiments on metal partitioning between rock, oil, water,
and gas; Task 3: Chemical modeling; Task 4: Studies of modern basin brines,
petroleum, and sea floor vents; and Task 5: Metals, fluid flow, petroleum, and
microbes in sedimentary basins: Investigations of modern analogs.
Mohammed Bouabdellah, David L. Leach, Michael Anthony, and Poul Emsbo, Solute
Compositions of Fluid Inclusions in Sulfides and Gangue Minerals From Touissit-Bou Beker-El Abed Mississippi Valley-
Type Ore deposits: Northeastern Morocco and Adjacent Algeria,
Emsbo, P., Hofstra, A.H, Lauha, E.A., Griffin, G.L., and Hutchinson, R.W., 2003, Origin Of High Grade
Gold Ore, Source Of Ore Fluid Components, And Genesis Of Meikle And Neighboring Carlin-Type Deposits, Northern
Carlin Trend, Nevada: Economic Geology and the Bulletin of the Society of Economic Geologists, vol.98, no.6, pp. 1069-1105.
Emsbo, P., Johnson, C., in press, Formation of modern and Paleozoic stratiform barite at cold
methane seeps on continental margins: Comment and Reply, Geology
Emsbo, Poul, 2000, Gold in Sedex Deposits, Chapter 13, in Hagemann S.G., Brown, P.E., eds.,
Gold in 2000, Reviews in Economic Geology, v. 13, p. 427-437.
Hofstra, A., H., and Emsbo, P., 2004, Solubility of metals and nutrients in brines: implications for
ore deposits, bioproductivity, and anoxia in sedimentary basins: Abstracts with Programs - Geological Society of America, vol. 36, no. 5, pp. 199.
Johnson, C.A., and Emsbo, P., 2004, Sulfur- and oxygen isotopes of barite deposits in sedimentary
basins: implications for barite genesis, massive sulfide genesis, and sulfur redox reactions: Abstracts with Programs - Geological Society of America, vol. 36, no. 5, pp. 200-201.
Leach, D., Marsh, E., Emsbo, P., Rombach, C.S., Kelley, K.D., and Anthony,
M., 2004, Nature of the Hydrothermal Fluids at the Shale-hosted Red Dog
Zinc-Lead-Silver Deposits, Brooks Range, Alaska: Economic Geology and the Bulletin of the Society of Economic Geologists, vol.99, no.7, pp.1449-1480.
Emsbo, P., and Hofstra, A.H., 2003, Origin And Significance Of Post-Ore Dissolution Collapse Breccias Cemented
With Calcite And Barite At The Meikle Gold Deposit, Northern Carlin Trend, Nevada: Economic Geology and the Bulletin of the Society of Economic Geologists, vol.98, no.6, pp.1243-1252.
Metals, fluid flow, petroleum, and microbes in sedimentary basins: Investigations of
2002, Eos, Transactions of the American Geophysical Union, v. 83, p. 1452
Stakes, D.S., Tivey, M.K., Koski, R.A., Ortego-Osorio, A., Preston, C.M., McCulloch, M.T.,
Nakamura, K., Seewald, J., and Wheat, C.G., 2003, Hydrothermal deposits in the Southern Trough of Guaymas Basin,
Gulf of California: Observations and Preliminary Results from the 2003 MBARI Dive Program: Eos, Transactions of the
American Geophysical Union, v. 84, p. F826.
Tivey, M.K., Stakes, D.S., Bradley, A., Seewald, J., Wheat, C.G., Reysenbach, A., Page, A.,
and Koski, R.A., 2003, Use of thermocouple arrays to investigate the environment within actively forming chimney deposits, Guaymas Basin: Eos, Transactions of the American Geophysical Union, v. 84, p. F826.