Coal-bearing strata belong to Middle-Lower Jurassic Series Jiangcang Formation,coal-forming environment was Mesozoic faulted basin fluviolacustrine,bog facies.
含煤地层为中下侏罗统江仓组,成煤环境属中生代断陷盆地内河湖、沼泽相沉积。
Lower Jurassic
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Early Jurassic
（重定向自Lower Jurassic）
The Early Jurassic epoch (in chronostratigraphy corresponding to the Lower Jurassic series) is the earliest of three epochs of the Jurassic period. The Early Jurassic starts immediately after the Triassic-Jurassic extinction event, 199.6 Ma (million years ago), and ends at the start of the Middle Jurassic (175.6 Ma).
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