Marges continentales transformantes
Mascle, J., Jean; Basile, Ch., Christophe (1998). Marges continentales transformantes. Earth Planet. Sci. Lett. 326(12): 827-838
In: Earth and Planetary Science Letters. Elsevier: Amsterdam. ISSN 0012-821X; e-ISSN 1385-013X, meer
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| Trefwoorden |
Cote d'Ivoire
Earth sciences > Geology
Earth sciences > Geology > Tectonics
Earth sciences > Geophysics
Earth structure > Earth crust > Oceanic crust
Geological structures > Faults > Transform faults
Ghana
ISE, Mexico, California Gulf
Morphology
Morphology
Morphology
Rifting
Topographic features > Landforms > Ridges
Topographic features > Submarine features > Continental margins
Topography
Ghana [Marine Regions]; Gulf of California [Marine Regions]; Ivorian Exclusive Economic Zone [Marine Regions]
Marien/Kust |
| Abstract |
We present and discuss three main stages that successively control the sedimentary, tectonic and crustal evolution along continental margin segments wbich result chielly from transform rifting between two parting continents. During an intracontinental stage, the future margin area is submitted to specific thermal and wrench tectonic activities and to a dominantly clastic sedimentation. In a second stage, an active transform contact between continental crust and a newly created oceanic crust, induces a sharp transition between ocean and continent crusts, as welt as the creation of a very steep and linear slope. Finally, the margin is submitted to a more standard cooling subsidence and accompanying sedimentation. |
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