【摘要】 中国陆壳是全球九大陆壳中唯一一个四面受挤的陆壳,是火山活动最活跃而广泛的陆壳,也是世界上板内地震的主要发生地区。从中国陆壳所含C、H元素质量分数分析,中国陆壳的C、H元素质量分数高于全球平均含量的克拉克值。因此,由C、H元素组成的烃类物质理应高于全球陆壳含烃量的平均值。而火山活动活跃正是中国陆壳富烃的原因之一:火山活动为有机生烃机制贡献了灶体生烃模型;火山活动的热液流体为有机生烃机制贡献了催化生烃模型;火山活动带来的幔源CO2和H2贡献了合成生烃机制;火山活动带来的热液水贡献了无机碳化物生烃模型;火山活动还直接贡献了幔源烃。所以中国陆壳理应为富烃陆壳。根据中国陆壳和上陆壳的C、H元素质量分数均高于全球平均值推论,中国的陆壳和上陆壳也应富含烃类物质。已有70年开发史的玉门油区于2002年在盆地的基底岩石中又找到了一个新的玉门油区,表明在我国陆壳深层仍有大量的油气资源有待勘探、发现。更多还原

【Abstract】 As a solely continental crust with compressive stress on all sides in global nine continental crusts,Chinese continental crust features widespread and the most active volcanic activity,hence it is main area of intraplate seismicity in the world.In view of analysis of C,H contents in Chinese continental crust,they are higher than Clarke value of global average content.This means the hydrocarbons composed of such C and H should be also higher than the average hydrocarbon content in global continental crust.Meanwhile,it is the active volcanic activity that becomes one of positive causes for Chinese continental crust should be in hydrocarbon enrichment,of which it contributes the kitchen model for hydrocarbon generation for organic source mechanism;its hydrothermal fluid contributes the catalytic model for hydrocarbon generation;its mantle-derived CO2 and H2 contribute compound mechanism for hydrocarbon generation;its hydrothermal water contributes the inorganic carbon compound model for hydrocarbon generation,and it also directly contributes mantle-derived hydrocarbons.Therefore,Chinese continental crust as a hydrocarbon-enriched one should be reasonable.In addition,higher C,H contents in Chinese sedimentary rocks than the average of global statistic values support the viewpoint that Chinese continental crust and upper continental crust should also be of hydrocarbon-enriched materials.In 2002,a new Yumen oil region was found in its basinal basement rock after 70-year development history,which indicates that the deep continental crust(s) of China still have a great deal of oil-gas resources to be explored and discovered.更多还原