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本世纪60—70年代板块构造理论兴起以来,国外关于非生物成因天然气的研究取得了新的进展,这对天然气资源的勘探和远景预测等方面,都将带来一定的影响。非生物成因天然气研究的动向可归纳为两个方面:其一是板块的俯冲消减带成气假说,其二是地球深层气假说。关于俯冲带成气假说:主张位于板块俯冲带的构造环境下,特别是大洋板块向大陆板块俯冲时,组成大洋地壳的玄武质岩石以及蛇绿岩等都含有大量的水。当大洋板块逐步俯冲到地
Since the rise of plate tectonics in the 1960s and 1970s, new progress has been made in the research on non-biogenic natural gas in foreign countries, which will exert some influence on the exploration and long-term prediction of natural gas resources. Non-biological causes of natural gas research trends can be grouped into two aspects: one is the plate subduction zone into the gas hypothesis, and the other is the Earth’s deep gas hypothesis. On the hypothesis that the subduction zone is gas-bearing: it is proposed that the basaltic rocks and ophiolites that make up the oceanic crust all contain a large amount of water under the tectonic setting of the plate subduction zone, especially when the oceanic plate subducts the continental plate. When the ocean plate gradually subdued to the ground