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Lower Cretaceous James Platform: Geologic Characterization

机译:下白垩统詹姆斯平台:地质特征

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摘要

The Early Cretaceous was a time of relative tectonic quiescence in the Gulf of Mexico. Tectonic movements were largely confined to subsidence within the Gulf basin itself and to continued migration of the Louann salt, which had begun in the Late Jurassic (Pilger, 1985; Salvador, 1987). The deepening basin was bordered by passive continental margins, defined to the north by broad, low-relief shelves that merged updip with flat coastal plain areas.
机译:白垩纪早期是墨西哥湾构造相对静止的时期。构造运动主要局限在海湾盆地内部的沉陷中,以及卢安盐的继续运移,后者始于侏罗纪晚期(Pilger,1985; Salvador,1987)。不断加深的盆地与被动大陆边缘接壤,该大陆边缘在北部由宽阔的低层陆架界定,这些陆架将上冲与平坦的沿海平原地区合并。

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