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Title: Chemical aspects of a brine pool at the East Flower Garden bank, northwestern Gulf of Mexico

Journal Article · · Limnol. Oceanogr.; (United States)

A small pool on the flank of the East Flower Garden bank at a depth of 72 m in the Gulf of Mexico contains anoxic, hypersaline (approx. 200 g.kg/sup -1/) water. The flux of brine into and out of the pool contributes to erosional processes on the bank. The bulk ionic composition of the brine is similar to that of the Orca Basin brine, but differences between the two in gaseous hydrocarbon and carbon isotope content indicate different modes of origin. High levels of bacterial activity in the brine are indicated by ATP (> 80 ng.liter/sup -1/), hydrogen sulfide (> 2000 ..mu..mol.liter/sup -1/), isotopically light ..sigma..CO/sub 2/ (delta/sup 13/C =-23/sup 0///sub 00/ and the apparent generaton of elemental sulfur.

Research Organization:
Texas A & M Univ., College Station, TX (United States)
OSTI ID:
5642441
Journal Information:
Limnol. Oceanogr.; (United States), Vol. 24:4
Country of Publication:
United States
Language:
English