Oxygen isotopic indications of the mechanisms of silica transport and quartz cementation in deeply buried sandstones

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doi: 10.1130/0091-7613(1994)022<0847:OIIOTM>2.3.CO;2
Authors:Aplin, Andrew C.; Warren, Edward A.
Author Affiliations:Primary:
University of Newcastle, Fossil Fuels and Environmental Geochemistry Postgraduate Institute, Newcastle upon Tyne, United Kingdom
British Petroleum Exploration, United Kingdom
Volume Title:Geology (Boulder)
Source:Geology (Boulder), 22(9), p.847-850. Publisher: Geological Society of America (GSA), Boulder, CO, United States. ISSN: 0091-7613
Publication Date:1994
Note:In English. 23 refs.; illus. incl. 1 table
Summary:The oxygen isotopic compositions and inferred precipitation temperatures of quartz cements in a suite of deeply buried sandstones from the North Sea, Gulf Coast, and western Canada basins indicate that, in almost every case, the quartz precipitated from 18O-rich basinal waters. 18O-rich waters are found in strictly limited volumes in sedimentary basins. Silica transport and quartz cementation could not therefore have occurred as a result of large-scale advection of basinal or meteoric waters, because this would require very large fluid fluxes. Quartz cementation was driven by processes operating on a local scale. The isotopic data do not uniquely indicate the mechanisms of silica transport but are consistent with both diffusion and local recycling of fluid.
Subjects:Basins; Cement; Cementation; Clastic rocks; Connate waters; Diagenesis; Diffusion; Framework silicates; Isotope ratios; Isotopes; O-18/O-16; Oxygen; Petroleum; Precipitation; Quartz; Reservoir rocks; Sandstone; Sedimentary basins; Sedimentary rocks; Silica; Silica minerals; Silicates; Stable isotopes; Alberta; Atlantic Ocean; Canada; Gulf Coastal Plain; North Atlantic; North Sea; Viking Graben; Western Canada; European Atlantic
Abstract Numbers:95M/3134
Record ID:1994047814
Copyright Information:GeoRef, Copyright 2019 American Geosciences Institute.
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