Geochemical Characteristics of the Middle Devonian Dacaozi-Tanshanping Shale Strata in the Yanyuan Basin, Southwest China: Implications for Organic Matter Accumulation and Preservation

<div>Main element and TOC content of YND-1 well in the Tanshanping Formation and Dacaozi Formation in the Ninglang-Yanyuan area (see Figure <a href="../fig2/">2</a> for the well position).</div>

Geofluids

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Figure 3

Figure 3: Geochemical Characteristics of the Middle Devonian Dacaozi-Tanshanping Shale Strata in the Yanyuan Basin, Southwest China: Implications for Organic Matter Accumulation and Preservation 

Figure 3 | Geochemical Characteristics of the Middle Devonian Dacaozi-Tanshanping Shale Strata in the Yanyuan Basin, Southwest China: Implications for Organic Matter Accumulation and Preservation 