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The AAPG/Datapages Combined Publications Database
Houston Geological Society Bulletin
Abstract
Abstract: G1adden Plate Boundary, Pull Apart Basin, Belize
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The junction of the North American and Caribbean plates in Belize has created a complex structural setting for oil and gas exploration. Recently acquired seismic data, offshore Belize, has been used to identify three structural provinces, from west to east: A shallow thrust zone, a narrow upthrown wrench-faulted zone and a deeper extensional basin, named the Gladden Pull Apart Basin. Hydrocarbon leakage along recent faults appears to have depleted the shallow structures to the west, but the pull apart basin has a thick sequence of low frequency, clay-dominated sealing rocks with the potential to preserve hydrocarbon accumulations in Cretaceous carbonate banks. These buried carbonate rocks are of the same age and depositional environment as Mexico's Golden Lane/Tabasco Reforma carbonate banks which contain world class giant oilfields.
Seismic interpretations of offshore Belize have been integrated with gravity and magnetic data. This integrated interpretation helped to locate the thick cretaceous carbonate banks. Airborne geochemical surveys detected oil seeps on the eastern and western basin margins.
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