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生物标记物指标的初步筛选
PRELIMINARY SIEVING OF BIOMARKER PARAMETERS
【摘要】 本文用数理统计方法对21项生物标记物指标进行了初步筛选。基础数据主要是我国6个盆地192个生油岩样品的数据。C27规则甾烷/C29规则甾烷是反映干酪根类型的较好指标。αβ升藿烷系列22S/22R、(降)藿烷/(降)莫烷、 αααC29甾烷20S/(20R+20S)是反映生油岩成熟度的较好指标。某些生物标记物指标没有明显的实用价值。
【Abstract】 Based on the statistical analysis of the geochemical data of more than 192rock samples collected from 6 basins in China,the author has come to the fol-lowing conclusions:1.The parameters 17α21β-Hopane-22S/22R,17α21β-Hopane/17β21α-More-tane and 5α14α17αC29-Sterane-20S/(20R+20S)are available maturity indicesof source rocks.2.The sterane ratio 5α14α17αC27/5α14α17αC29 is a better index of kerogentypes.3.Some parameters,as Pristane/n-C17,Phytane/n-C18,are of little prac-tical value.
- 【文献出处】 石油与天然气地质 ,Oil & Gas Geology , 编辑部邮箱 ,1986年02期
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