The mineralized pegmatite dykes are mostly controlled by NEE-striked longitudinal joints and lie in the marginal facies of Mufu mountain rocks mass.
矿化伟晶岩墙大多受NEE向纵向节理控制，并位于幕阜山岩体的边缘。
The region with strong folding or repeated strata, high compression stress and coarse elastic marginal facies is not an ideal location for exploration.
认为勘探中应尽量避开褶皱强烈的地层重复地区、高挤压应力集中区和盆地粗碎屑边缘相带等。
The mother rocks of copper deposit in Sanchakou are quartz diorite(porphyrite)and quartz-mica-diorite-porphyrite of marginal facies from quartz-diorite and diorite rock body of middle Hercynian.
三岔口铜矿含矿主岩为海西中期石英闪长岩—闪长岩体边缘相石类闪长（玢）岩和英云闪长斑岩。
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