With the increase of the reduction degree, the enrichment coefficients of U and Mo increase gradually, but the Mo/U ratio tends to 1 × SW, and the Mo/U ratio of samples in anoxic–euxinic facies does not show an increasing trend with the increase of enrichment coefficients of U and Mo, indicating that the sedimentary water column has a strong restriction degree at that time.
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Constraints of Sedimentary Environment on Shale Organic Matter Enrichment: Insights from Elemental Geochemistry and Multiple Factor Analysis.
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