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

Lookup NU author(s): Professor Andrew Aplin


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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 O-18-rich basinal waters. O-18-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.

Publication metadata

Author(s): Aplin AC, Warren EA

Publication type: Article

Publication status: Published

Journal: Geology

Year: 1994

Volume: 22

Issue: 9

Pages: 847-850

Print publication date: 01/09/1994

ISSN (print): 0091-7613

ISSN (electronic): 1943-2682


DOI: 10.1130/0091-7613(1994)022<0847:OIIOTM>2.3.CO;2


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