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The AAPG/Datapages Combined Publications Database
Houston Geological Society Bulletin
Abstract
Abstract: Joides Leg X - Gulf of Mexico
By
On Joides Leg X significant contributions were made to our knowledge of the geologic
history of the southern Gulf of Mexico. With five penetrations of the entire Late
Cretaceous-Cenozoic section, the geologic history of Campeche Bank may be discerned
in some detail, and knowledge of the Late Cretaceous-Holocene history of the Yucatan
Channel-Florida Straits area is supplemented.
No deep-water Early Cretaceous sediments were recovered. Late Albian algal
mat-miliolid facies carbonates are overlain progressively westward by Early Cenomanian
pelagic sediments in the Florida Straits-Yucatan Channel area, Early Santonian pelagic
sediments near the base of the eastern Campeche Slope, and Early Paleocene pelagic
sediments on the Campeche Slope. Thick Neogene sedimentary sections were encountered
only in the western Gulf of Mexico and, seemingly, most of the terrigenous clastic dilution was sourced from the Rio Grande drainage area through Late Miocene,
and from the Mississippi River drainage area during the Pleistocene. End_of_Record - Last_Page 20---------------