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Columbus Basin
The Columbus Basin is a foreland basin located off the south eastern coast of Trinidad within the East Venezuela Basin (EVB). Due to the intensive deformation occurring along the Caribbean and South American plates in this region, the basin has a unique structural and stratigraphic relationship. The Columbus Basin has been a prime area for hydrocarbon exploration and production as its structures, sediments and burial history provide ideal conditions for generation and storage of hydrocarbon reserves. The Columbus Basin serves as a depocenter for the Orinoco River delta, where it is infilled with 15 km of fluvio-deltaic sediment. The area has also been extensively deformed by series of north west to southeast normal faults and northeast to southwest trending anticline structures.
== Location ==
The Columbus Basin makes up the eastern section of the EVB, occurring along the South American and Caribbean obliquely convergent plate margins.〔 The East Venezuelan basin extends for approximately 1100 km wide where the Columbus Basin is most recent accounting for about 14,000 km² and is 15 Ma to 0 years in age.〔 It is bounded by the Darien Ridge in the north (a continuation of the Central Range found on south western Trinidad) and the Delta Amacuro Platform to the south.〔
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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