We must make the distinction between pre-orogenic deformation and orogenic deformation of sedimentary basins because there is a great deal of evidence that important deformation occurs in sedimentary basins while they are accumulating sediment on a subsiding sedimentary column — particularly in the terminal regressive sequence. The regressive sequence itself is due to a neighbouring orogeny outside the sedimentary basin: the creation of mountains creates sediment in increasing amounts until the supply of sediment to a sedimentary basin exceeds the volume created by subsidence of the sedimentary basin. The sea then tends to become shallower, and the sediments prograde away from the orogeny.
Weitere Kapitel dieses Buchs durch Wischen aufrufen
- Role of Pore Water in Deformation of Sedimentary Basins
Richard E. Chapman
- Springer Netherlands
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