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Line 34: − The stratigraphic and tectonic history of the GOM basin is strongly affected by salt tectonics. As a consequence of differential loading of salt by sediment sourced from the North − +
Making regional tectonic maps (view source)
Revision as of 17:22, 8 April 2014
, 17:22, 8 April 2014→Salt tectonic map
file:sedimentary-basin-analysis_fig4-7.png|{{figure number|5}}Salt structures in the northwestern Gulf of Mexico and adjacent interior basins. Modified from Jackson and Galloway.<ref name=JacksonandGalloway_1984>Jackson, M. P. A., and W. E. Galloway, 1984, [http://archives.datapages.com/data/alt-browse/aapg-special-volumes/cn25.htm Structural and depositional styles of Gulf Coast Tertiary continental margins: Applications to hydrocarbon exploration]: AAPG Continuing Education Course Notes Series 25, 226 p.</ref>
file:sedimentary-basin-analysis_fig4-7.png|{{figure number|5}}Salt structures in the northwestern Gulf of Mexico and adjacent interior basins. Modified from Jackson and Galloway.<ref name=JacksonandGalloway_1984>Jackson, M. P. A., and W. E. Galloway, 1984, [http://archives.datapages.com/data/alt-browse/aapg-special-volumes/cn25.htm Structural and depositional styles of Gulf Coast Tertiary continental margins: Applications to hydrocarbon exploration]: AAPG Continuing Education Course Notes Series 25, 226 p.</ref>
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American craton, the distribution of salt-cored structures is oldest in the onshore northern margin of the basin where Late Cretaceous and early Cenozoic progradation resulted in salt-structure growth.
The stratigraphic and tectonic history of the GOM basin is strongly affected by salt tectonics. As a consequence of differential loading of salt by sediment sourced from the North American craton, the distribution of salt-cored structures is oldest in the onshore northern margin of the basin where Late Cretaceous and early Cenozoic progradation resulted in salt-structure growth.
Offshore beneath GOM waters, evacuation of salt structures is oldest in the north and is progressively younger toward the south. However, there are Late Jurassic and Early Cretaceous salt-cored structures along the Sigsbee Escarpment. Pliocene and Pleistocene depositional loading has displaced salt basinward and differentially loaded detached salt sills into salt-cored massifs and salt-cored diapirs.
Offshore beneath GOM waters, evacuation of salt structures is oldest in the north and is progressively younger toward the south. However, there are Late Jurassic and Early Cretaceous salt-cored structures along the Sigsbee Escarpment. Pliocene and Pleistocene depositional loading has displaced salt basinward and differentially loaded detached salt sills into salt-cored massifs and salt-cored diapirs.