Secondary biogenic gas is usually associated with late stage groundwater system and bacteria activity.
次生生物成因气常与后来的煤层含水系统的细菌活动有关。
Based on the special existing form of immature source rock of biogenic gas, the assessment system of organic matter abundance for quaternary source rock of biogenic gas in Qaidam basin is suggested.
鉴于未成熟生物气源岩有机质赋存形式的特殊性，提出了柴达木盆地东部第四系生物气源岩的有机质丰度评价标准。
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