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Advances in geochronology of hydrocarbon accumulation
Author(s): 
Pages: 143-150
Year: Issue:  2
Journal: OIL & GAS GEOLOGY

Keyword:  油气成藏年代学流体包裹体自生钾长石Ar-Ar定年;
Abstract: 总结了国内外主要油气成藏定年技术和方法,并对其优、缺点做出了评述,认为油气成藏年龄确定已由过去的地质间接确定方法为主,发展到今天多种放射性同位素直接测年的新阶段;其中,在配备电子倍增器和UV激光纯化系统的高灵敏度质谱仪上,开展流体包裹体与自生钾长石Ar-Ar定年相结合的方法,实现了微区、微量和多期次油气充注精确定年,对叠合盆地油气成藏动力学建模和次生油气藏勘探均具有重要意义.同时指出,油气成藏年代学研究不仅需要多学科的交叉、渗透,而且需要发展更加具有代表性的成岩矿物定年和多种定年结果相互验证,为正确揭示不同盆地油气成藏年龄提供可靠依据.
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