About This Item
- Full TextFull Text(subscription required)
- Pay-Per-View PurchasePay-Per-View
Purchase Options Explain
Share This Item
AAPG Bulletin, V.
Salt tectonics driven by sediment progradation: Part II—Radial spreading of sedimentary lobes prograding above salt
1Laboratoire d'Etudes des GoEnvironnements Marins (LEGEM), Universit de Perpignan Via Domitia, 52, avenue Paul Alduy, 66860 Perpignan, France; [email protected]
2Bureau of Economic Geology, University of Texas at Austin, Austin, Texas; present address: Universit de Lille 1, UFR Sciences de la Terre, UMR 8110, Cit Scientifique, Bat. SN5, Villeneuve d'Ascq F-59655, France; [email protected]
Experimental models indicate that sedimentary lobes deposited above mobile evaporites deform gravitationally by spreading outward radially. Radial spreading forms both concentric and radial families of thin-skinned grabens that are then pierced diapirically by salt ridges. The overburden blocks located between the ridges become subsiding depocenters. Later, continued spreading after depletion of the salt layer forces salt ridges and diapirs to fall, forming rapidly subsiding bathymetric lows that channel or trap younger sediments. Spreading causes large horizontal overburden movements whose distribution and orientation change when the locus of regional deposition shifts.
Pay-Per-View Purchase Options
The article is available through a document delivery service. Explain these Purchase Options.
|Protected Document: $10|
|Internal PDF Document: $14|
|Open PDF Document: $24|
Members of AAPG receive access to the full AAPG Bulletin Archives as part of their membership. For more information, contact the AAPG Membership Department at [email protected].