Evidence for post-cementation migration of high-temperature, high-pressure fluids - Siluro-Devonian Helderberg group, central Appalachians
Conference
·
· Am. Assoc. Pet. Geol., Bull.; (United States)
OSTI ID:6571645
Fluid inclusion data and fracture-filling cements in carbonate and siliciclastic rocks of the Siluro-Devonian Helderberg Group, central Appalachians, indicate post-cementation, late Paleozoic migration of high-pressure, high-temperature fluids. Well-cemented sandstone and limestone have multiple crosscutting trains of secondary hydrocarbon inclusions. Some trains crosscut cement-filled fractures. Hydrocarbons also occur as thin films along cement crystal boundaries and as secondary inclusions trapped along calcite deformation twins. These inclusions indicate geopressured fluids moved along intercrystalline boundaries and along deformation twin planes in calcite under deep burial conditions either during or after deformation.
- Research Organization:
- Viriginia Polytechnic Inst. and State Univ., Blacksburg
- OSTI ID:
- 6571645
- Report Number(s):
- CONF-8405216-
- Conference Information:
- Journal Name: Am. Assoc. Pet. Geol., Bull.; (United States) Journal Volume: 68:4
- Country of Publication:
- United States
- Language:
- English
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Petrography, geochemistry, and origin of burial diagenetic facies, Siluro-Devonian Helderberg Group (carbonate rocks), central Appalachians
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Journal Article
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Fri May 01 00:00:00 EDT 1987
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·
OSTI ID:6455626
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Mon Feb 28 23:00:00 EST 1983
· Am. Assoc. Pet. Geol., Bull.; (United States)
·
OSTI ID:6183865
Petrographic and geochemical evidence for regional fluid and hydrocarbon migration associated with Late Paleozoic tectonism: Upper Knox Group, Appalachians
Conference
·
Tue May 01 00:00:00 EDT 1990
· AAPG Bulletin (American Association of Petroleum Geologists); (USA)
·
OSTI ID:6985597