冀北东坪式金矿找矿远景区的岩石磁学研究

Study of rock magnetism for prospect area of Dongping-type deposit in northern Hebei

通过区域成岩学与岩石磁学的融合 ,以东坪式大型金矿为例 ,根据岩石磁学的定量化数据 ,分析与东坪式金矿成矿有直接成因联系的碱性侵入岩、海西期岩体的磁化率、Q值异常 ,并以大型的东坪、金厂峪、峪耳崖金矿为已知条件 。

Combining rock magnetism and reginoal lithogenics,based on the quantitive data about rock magnetics,the magnetic susceptibility and Q value anomalies(koenigsberger) of alkaline intrusive rock and Hercynian magmatic body are analyzed, which have directly genetic relation to formation of Dongping type gold deposit. According to Dongping,Jinchengyu and Yuerya deposits, the conclusion are arrived at that the prospective area of Dongping type gold deposit located in the gradient belt of the susceptibility and the Q value.