From inorganic geochemistry, the study results in this paper show that, the information water in the studied interval becomes fresh and its acidity becomes a little strong from the lower to the upper.

从无机地球化学角度看，研究段内自下而上水体逐渐变淡，酸性有所增强，酸性环境有利于有机质的成熟演化。

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Also, the geochemistry of light oil of Neogene in Bohai Bay basin is particularly researched in order to attain the geochemical evidences of inorganic sources.

要特别关注渤海新近系中轻质油的地球化学研究，以寻找无机生油的地球化学证据。

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Deep source gas refers to inorganic genetic gas or abiogenic gas which comes from deep crust or upper mantle, and has apparent geology and geochemistry characteristics.

深源气是指来自地壳深部或上地幔的无机成因天然气或称非生物成因天然气，它具有明显的地质地球化学特征。

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