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The AAPG/Datapages Combined Publications Database
AAPG Bulletin
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The Tampico-Misantla basin was a deep-water embayment directly southwest of the Golden Lane oil pools in east-central Mexico. Most of the sedimentary rocks in the basin are Paleocene-Eocene turbidites derived from the Sierra Madre Oriental. The Paleocene was deeply eroded by submarine currents moving in a west-northwest direction. This erosion not only cut through all of the Paleocene but, also, through the entire underlying Cretaceous and Upper Jurassic section. During late Paleocene and early Eocene times, the deep-basin submarine canyon was filled with turbidites (Chicontepec). On the northeast side, along the southwest margin of the Golden Lane reef trend, the canyon had numerous submarine tributaries which brought admixtures of micritic and pelitic reef-derived clast c material that "contaminate" the turbidites of the canyon fill. Multiple individual beds and lenticular zones of sandstone beds within the canyon fill generally contain commercial hydrocarbon accumulations. The entire area of Chicontepec sandstone is considered to be prospective. Known oil accumulation is unrelated to the structural positions of the wells completed. There is a wide range of initial potential and cumulative potential in different wells. Areas of thickest net sandstone, therefore, offer the most attractive reservoir possibilities.
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