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Gene Shinn, Chris Reich, and Don Hickey Receive SEPM Award
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May 2000 |
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At the SEPM awards banquet held on April 18th during the annual AAPG-SEPM convention in New
Orleans, Gene Shinn, Chris Reich, and Don Hickey received the 1999 Excellence of Oral Presentation
award for their paper, "Tidal Pumping as a Diagenetic Agent." The paper is a by-product of the
Florida Keys Groundwater-Flow and Seepage Project, funded by the Coastal and Marine Geology and
Place-Based Studies Programs. The paper describes how in a limestone environment tidal pumping
resulting from tidal fluctuation on one side of an island barrier can lead either to porosity
occlusion or porosity enhancement depending on water chemistry. In areas of high salinity and
carbonate saturation, such as in the Persian Gulf, the process can stimulate cementation and
porosity occlusion. In areas of under-saturated water such as in the Florida Keys, dissolution
leads to increased porosity. Although the study was intended to track the flow of sewage in the
Keys, the findings can be extrapolated to the hydrocarbon environment. The linear trend (either
porosity or no porosity) forced on the process by a barrier island has implications for explaining
reservoir distribution and quality in ancient limestones. The tidal-pumping study is an example of
how a fundamental idea can arise from an applied research problem.
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May 2000
in this issue:
cover story:
NY Bight Cruise
Honduras Coral Reefs
Letter to the Editor
Nat'l Ocean Sciences Bowl Winner
Earth Day, Tampa Bay
Gulf of Mexico
Great Lakes Mapping
Interagency Pollution Work
Edgar Receives RSAS Award
Shinn, Reich, & Hickey Receive SEPM Award
Work With High School Students
New Post-Doc
New ECO Interns at WHFC
Talk by Richie Williams
Ellen Mecray Completes Boston Marathon
Visitors
May Publications List
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U. S. Department of the Interior | U.S. Geological Survey
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