Mechanism Analysis of Organic Matter Enrichment of Upper Ordovician-Lower Silurian Shale in the Upper Yangtze Area: Taking Jiaoye-1 Well in the Jiaoshiba Block as an Example

Figure 6

Models of organic matter enrichment during the deposition of the Upper Ordovician Wufeng Formation-Lower Silurian Longmaxi Formation 1st member in the Upper Yangtze area. (a) The Wufeng Formation-the lower section of the Longmaxi Formation 1st member; (b) the upper section of the Longmaxi Formation 1st member. Modified from Picard [85], Zhang et al. [30], Zhang et al. [45], Huang et al. [21], and Zou et al. [86].

(a)

(b)