RAFT TECTONICS - THE EFFECTS OF RESIDUAL TOPOGRAPHY BELOW A SALT DECOLLEMENT

被引：54

作者：

GAULLIER, V

BRUN, JP

GUERIN, G

LECANU, H

机构：

[1] GEOSCI RENNES,CNRS,UPR 4661,F-35042 RENNES,FRANCE

[2] ELF AQUITAINE PROD,F-64018 PAU,FRANCE

来源：

TECTONOPHYSICS | 1993年 / 228卷 / 3-4期

关键词：

D O I：

10.1016/0040-1951(93)90349-O

中图分类号：

P3 [地球物理学]; P59 [地球化学];

学科分类号：

0708 ; 070902 ;

摘要：

Some natural examples of thin-skinned extensional structures resulting from gravitational gliding on passive margins, which display complex listric growth fault patterns, are not just controlled by the slope direction. Examples from the Gulf of Guinea are presented. It is proposed that the inherited topography of the underlying basement can control the initiation of faults oblique to the gliding direction. We carried out a series of small-scale physical models in order to investigate the effects of residual topography beneath a decollement on faulting in the overlying rafted sedimentary cover. The experimental results sustain the hypothesis of structural inheritance and their implications are discussed in the light of natural examples from the Gulf of Guinea.

引用

页码：363 / 381

页数：19

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