In this paper, the gamma-ray curves of the Quaternary of Sanhu area in eastern Qaidam Basin are analyzed using frequency spectrum analysis method.

本文采用频谱分析对柴达木盆地三湖地区第四系自然伽马测井曲线进行了系统分析。

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Organic matter abundance of quaternary source rock of biogenic gas in eastern Qaidam basin is the key factor controlling biogenic gas resource in the area.

柴达木盆地东部第四系生物气源岩有机质丰度是控制该区生物气资源的关键因素。

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The results show that in the eastern Qaidam Basin, the Palaeozoic organic matters were mainly from bacteria and algae, and some Palaeozoic source rocks contained terrestrial bio-inputs.

结果表明，柴达木盆地东部地区古生界有机质多为菌、藻类生源，少数有陆源有机质混入。

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