【作者】 金维浚； 张旗； 焦守涛；

【Author】 JIN Wei-jun;ZHANG Qi;JIAO Shou-tao;Institute of Geology and Geophysics,Chinese Academy of Sciences;State Key Laboratory of Lithospheric Evolution,Institute of Geology and Geophysics,Chinese Academy of Sciences;Beijing Institute of Geology and Mineral Resources;

【机构】 中国科学院地质与地球物理研究所； 中国科学院地质与地球物理研究所岩石圈演化国家重点实验室； 北京矿产地质研究所；

【摘要】 本文介绍一个利用镜质体反射率寻找隐伏岩体的方法,该方法在煤田和油气地质部门使用得非常娴熟.该方法具有简单、适用、经济、快速、低成本、高效率的特点.尤其煤田部门,已经应用镜质体反射率等值线在预测隐伏岩体方面做了许多有益的尝试,取得了良好的效果.证明该方法是行之有效的,与物探方法比较,镜质体反射率方法最大的优点是没有多解性,它只是温度场的反映.只要在局部范围检测到足够高的R_o(>3%),就可能是隐伏岩体的反映.但是,与物探方法的普适性相比,本方法有一定的局限性.因此,如果能够将该方法从煤田和石油部门应用到岩石和矿床学找矿工作中,与重磁法、电法、配合使用,可以提高寻找隐伏岩体的效果,推进深部隐伏矿床的找矿实践.更多还原

【Abstract】 This paper introduces a method to find the concealed intrusions by the vitrinite reflectance(R_o) indictor,which is the common useful method in coal and petroleum geology.The R_o method is of simple,practical,economical,fast,low cost and high efficient.In particular coal geologists have predicted many concealed intrusions by the R_o contour,and have done a lot of attempt,and achieved good results.Compared with geophysical methods,the R_o method is shown that it is no ambiguity,merely reflects the temperature field.It may indicate an existence of buried intrusion as long as the R_o more than 3%in the area is detected.However,compared with the geophysical methods,the R_o method has some limitations.Therefore the R_o method is introduced from the coal geology and petroleum geology to the petrology and mineral deposits prospecting,and is combined by the gravity and magnetic methods,electromagnetic method.It can increase the effect of looking for hidden intrusions,and improve the deep ore deposits practice.更多还原