Geofluids / 2017 / Article / Fig 3

Research Article

The Early Cambrian Mianyang-Changning Intracratonic Sag and Its Control on Petroleum Accumulation in the Sichuan Basin, China

Figure 3

The key seismic profiles indicating presence of Early Cambrian extensional intracratonic sag across the Sichuan basin. (B-B′: NE-striking Weiyuan-Gaoshiti cross-section across the intracratonic sag. The yellow lines show log-data for well picks of the horizon; based on GS-1 and GS-17 wells. Grey arrows show western and eastern sag boundaries. and are bases of Lower Cambrian Longwangmiao and Canglangpu Fm. C-C′: NE-striking Ziyang-Shehong section. All the seismic profiles are rotated back with the Middle Cambrian Gaotai Fm. The inset map shows locations of cross-sections).

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