Metallic sulfide deposits in Gulf Coast salt dome cap rocks
Conference
·
· Am. Assoc. Pet. Geol., Bull.; (United States)
OSTI ID:6535904
Sixty-five core tests at Hockley salt dome, Harris County, Texas, indicate an annular zone of iron, zinc, lead, and silver sulfides around the perimeter of the cap rock in cumulative concentrations from trace amount to over 50% total sulfides. Barite has been identified in concentrations exceeding 60%. The textures within and the geometry of the mineralized zone suggest rapid precipitation in a highly reducing, tectonically active environment. Petrographic, isotopic, trace element, hydrocarbon, and biological information supports origin of the deposit through a complex evolutionary system involving halokinesis; cap rock development and diagenesis; and the generation, migration, and accumulation of hydrocarbons and associated brines. Existing information indicates that at least 13 other Gulf Coast salt domes host metallic sulfide deposits containing zinc and/or lead as a result of similar processes.
- Research Organization:
- Marathon Oil Co., Littleton, CO
- OSTI ID:
- 6535904
- Report Number(s):
- CONF-8310301-
- Conference Information:
- Journal Name: Am. Assoc. Pet. Geol., Bull.; (United States) Journal Volume: 67:9
- Country of Publication:
- United States
- Language:
- English
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Thesis/Dissertation
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Tue Dec 31 23:00:00 EST 1985
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OSTI ID:5077115