Seafloor instability at East Flower Garden Bank,northwest Gulf of Mexico |
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| Authors: | Richard Rezak Thomas J Bright |
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| Institution: | (1) Department of Oceanography, Texas A&M University, 77843 College Station, TX |
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| Abstract: | An increasing volume of evidence suggests that normal faulting and graben formation associated with salt diapirism may be
catastrophic. The evidence includes: 1) removal of solid salt from the diapirs by dissolution, 2) the nature of rock outcrops
at the crests of domes, 3) seismic profiles showing recent displacement of the seafloor, and 4) changes in coral growth rates
at the East Flower Garden Bank. The possibility of catastrophic movement of the seabed is an engineering constraint that must
be addressed prior to emplacing structures such as jack-up rigs and production platforms. |
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