Facies Architecture Model of the Shimentan Formation Pyroclastic Rocks in the Block‐T Units, Xihu Sag, East China Sea Basin, and its Exploration Significance
Abstract:A gas field consisting of volcanic reservoir rocks was discovered in the block-T units of the Xihu Sag, East China Sea Basin. The lithology of the volcanic rocks is dominated by tuff and reworked tuff. The lithofacies are dominated by base surge deposits of explosive facies. As the architecture model of volcanic facies is still uncertain, it has restricted the exploration and development of mineral resources in this area. Using core and cuttings data, the lithology, lithofacies, geochemistry as well as grain s… Show more
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