Research Article

Early Paleozoic Extension-Compression Transition and Formation of a Paleo-Oil Reservoir System in the NW Sichuan Basin: Implications for Deeply Buried Hydrocarbon Accumulation

Figure 2

Generalized stratigraphic column of the western Sichuan depression (WSCD). Simplified stratigraphic units with major marker beds, age constraints, and tectonic orogenic events from the Sinian (Ediacaran) Doushantuo Fm, Dengying Fm, and Lower Cambrian Qiongzhusi Fm to the middle Permian Qixia Fm in the WSCD.