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Proceedings Paper

Reassessment of local paleocurrent directions in the Miami oolitic limestone with 3D ground-penetrating radar
Author(s): Mark Grasmueck; Ralf Weger
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Paper Abstract

Active oolitic sand bars like the modern ones in the Bahamas as well as those in the ancient exhibit a complex internal architecture with a multitude of stacked sedimentary structures. As a result, the internal anatomy of these sand bars is usually too complex to be captured with twodimensional outcrop and one-dimensional well information. In order to improve fluid flow modeling used in water and hydrocarbon resource management, closely spaced threedimensional (3-D) data is needed to accurately map sedimentary structures. To improve our understanding of ancient oolitic sand bar anatomy we collected a 3-D 100 MHz Ground-Penetrating Radar (GPR) data cube covering an area of 24x46 m with 7m penetration depth. A grid spacing of 0.1x0.2 meters is needed to fully exploit the imaging capability of the 100 MHz antennae. The high-resolution 3-D GPR data enable: . Volume maging of oolitic sand bar architecture. . Understanding of spatial relationships of sedimentary structures. S Reconstruction of depositional environment and assessment of paleocurrent and sandwave migration directions.

Paper Details

Date Published: 12 April 2002
PDF: 6 pages
Proc. SPIE 4758, Ninth International Conference on Ground Penetrating Radar, (12 April 2002); doi: 10.1117/12.462244
Show Author Affiliations
Mark Grasmueck, Univ. of Miami (United States)
Ralf Weger, Univ. of Miami (United States)

Published in SPIE Proceedings Vol. 4758:
Ninth International Conference on Ground Penetrating Radar
Steven Koppenjan; Hua Lee, Editor(s)

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