Studies Of Relationship Between Hydrocarbon And Ore-forming In Fluid Flow And Its Application For Ore-exploration

The space and scope of hydrocarbon existed in the nature are so extensive. It widely existed in many kinds of rock of earth's surface(or near earth's surface) , also occurrences in chimney of modern sea bottom, hot water area of modern sea slot movable and volcano gas. It has been make sure that great quantities of high salt degree fluid containing hydrocarbon existed in the earth's crust of 8~12 km depth. The researchers also discovered hydrocarbon in inclusions of basic-ultrabasic rock and basalt from mantle of the earth ,even various organic compounds(include hydrocarbon) had been found in the meteorite(carbonaceous chondrite). The research works on hydrocarbon shouldn't be limited only in the energy minerals such as petroleum, natural gas and coal etc,in fact it should be expanded to the research of metal mineral and mineral fluid. Hydrocarbon has a set of diversification and the property stable characteristics. And the relativity and distribution coefficient for each unit of hydrocarbon are more important parameters of the geologic fluid evolution. So the research works on hydrocarbon could be helpful to comprehend mineral source, fluid evolution, metllogenic mode and give guide to the new method seeking for mineral exploration .For the purpose of directly embodiment for the fine distinction of fluid evolving of hydrocarbon, the author offers a proposal to establish standardized background for hydrocarbon. Its significance is same as establishment of standardized background for REE with chondritic meteorite. The standardized background of hydrocarbon is experimented to be established with the hydrocarbon of Emeishan basalts which have the characteristic of mantle source fluid. The effect has been attested that the otherness of difference kind of hydrocarbon and the regularity of fluid evolution could be embodied clearly by this way .It not only actuates the research on hydrocarbon from pute macrofeature to microscopic feature, but also expanded the research methods from surface phenomena that hydrocarbon being simple participant in metallic ore forming to the important tool and instrument for researching source of ore , evolving of ore solution, regularity of mineralization.It has intimate connection between metallic ore forming and hydrocarbon in the whole process: from mineralizing fluid preliminary enrichment , activity transfer ,metallic ore forming,until the metamorphism and alteration. As associate component, hydrocarbon is the important active participant and had different characteristics during the metallic ore forming. So the systematized research of hydrocarbon including macro feature and microscopic features from different geologic bodies would be helpful not only to the theory study of mineral source, fluid evolution and metllogenic mode, but also to the actual metallic ore deposit exploration.