河北省涞源县王安镇杂岩体多金属成矿规律

王安镇杂岩体位于中生代大兴安岭-太行山岩浆构造带上,是河北省重要的金属矿产地,主要有金、铁、钼、铜、铅、锌、银等矿产.该杂岩体是燕山期中酸性岩浆活动的产物,主要由中侏罗世闪长玢岩、晚侏罗世中酸性侵入岩和早白垩世酸性偏碱性侵入岩组成.文中对杂岩体中的中侏罗世闪长玢岩与铁铜钼的成矿关系、晚侏罗世中酸性侵入岩与铁铜铅锌的成矿关系、早白垩世酸性偏碱性侵入岩与金成矿的关系进行了研究总结,并阐述了该杂岩体在水平方向上和垂直方向上成矿的规律性以及区域成矿规律性,指出构造(包括深断裂、区域断裂和变质核杂岩的滑脱构造)提供有利空间和通道,地层(包括中元古代长城系高于庄组和蓟县系雾迷山组地层白云岩、寒武系和奥陶系下统冶里组地层中的灰岩)为主要赋矿围岩,岩浆岩(包括岩石类型、岩体规模与产状、岩浆成因类型)对成矿具有明显的控制作用.

Polymetallic Metallogenic regularity of the Wang'anzhen Complex in Laiyuan County, Hebei Province

Wang'anzhen complex is located in the Mesozoic Daxing'anling-Taihangshan magmatic-structural belt.It is rich in metal ore deposits,such as Au,Fe,Mo,Cu,Pb,Zn and Ag ect.The complex resulted from the intermediate-acidic magmatic activities in Yanshan period.And it mainly consists of the mid-Jurassic dioritic porphyrite,late- Jurassic intermediate-acidic magmatite,and early-Cretaceous acidic-alkale magmatite.The relation between the metal ore deposits and the complex is discussed in this paper.The metallogenic regularity is: 1) the structures including the deep fault,regional faults and the decollement faults in the complex are the ore-forming feeder and the ore-bearing place.2) The strata including dolomite in the Gaoyuzhuang Fm.,Changcheng System and Wumishan Fm.,Jixian System,and the carbaonate in the Cambrian and early-Ordovician system are the mainly host rock.3) The magmatite including the lithologic type,rock body scale,occurrence and magma origin have the close relation with the ore formation.