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。

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.

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油气生成的物质基础和运移动力是油气壳-幔非生物成因说必须回答的二个基本问题。

Material basement and migration dynamic are two essential problems that have to be answered by the crust mantle hydrocarbon abiogenesis theory.

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