Skip to Main Content
Book Chapter

Evaluating Water-Depth Variation and Mapping Depositional Facies on Great Bahama Bank – a “Flat-Topped” Isolated Carbonate Platform

By
Paul M. (Mitch) Harris
Paul M. (Mitch) Harris
Chevron Energy Technology Company, Houston, TX, U.S.A. mitchharris@chevron.com
Search for other works by this author on:
Sam J. Purkis
Sam J. Purkis
National Coral Reef Institute, Nova Southeastern University, Dania Beach, Florida, U.S.A. purkis@nova.edu
Search for other works by this author on:
James Ellis
James Ellis
Ellis GeoSpatial, Walnut Creek, California, U.S.A. jellis@ellis-geospatial.com
Search for other works by this author on:
Published:
January 01, 2014

Abstract

Great Bahama Bank (GBB) stands behind many of the models used to illustrate depositional facies variation across flat-topped, isolated carbonate platforms. Such models have long served as subsurface analogs at a variety of scales. We have used Landsat TM and ETM+ imagery, and an extensive set of water depth measurements, to critically evaluate the magnitude and patterns of bathymetry across GBB. The refined bathymetric digital elevation model (DEM) and seafloor sample data were analyzed with eCognition to develop a map of depositional facies that is more robust than previous versions.

60%, or 61,400 km2, of GBB lies in 5 m or less of water. This includes carbonate sand accumulations where accommodation space is nearly filled, e.g., Tongue of the Ocean, Schooners, Exumas, Joulters, and the Cat Cay sand bodies, and also includes vast portions of the northern portion of GBB surrounding Andros Island and the New Providence Platform to the west of the Exuma Islands. The 40% of GBB lying in greater than 5 m of water occurs mainly in an east-west trending portion of the southern platform. These bathymetric patterns are important as a potential primary control over flooding history, filling (accommodation) history, and the resultant depositional facies patterns.

You do not currently have access to this article.

Figures & Tables

Contents

SEPM Short Course Notes

Evaluating Water-Depth Variation and Mapping Depositional Facies on the Great Bahama Bank – a “Flat-Topped” Isolated Carbonate Platform

Paul M. (Mitch) Harris
Paul M. (Mitch) Harris
Chevron Energy Technology Company, Houston, TX, USA
Search for other works by this author on:
Sam J. Purkis
Sam J. Purkis
National Coral Reef Institute, Nova Southeastern University, Dania Beach, FL, USA
Search for other works by this author on:
James Ellis
James Ellis
Ellis GeoSpatial, Walnut Creek, CA, USA
Search for other works by this author on:
SEPM Society for Sedimentary Geology
Volume
56
ISBN electronic:
9781565763388
Publication date:
January 01, 2014

GeoRef

References

Related

Citing Books via

Close Modal
This Feature Is Available To Subscribers Only

Sign In or Create an Account

Close Modal
Close Modal