江西于都安前滩钨矿地质特征及成因探讨

Geological characteristics and genesis of tungstate in Qiantan,Yu'an,Jiangxi Province

通过对安前滩钨矿床地质特征的论述,认为成矿母岩安前滩花岗岩体是燕山早期第三阶段侵入产物,具有良好的分异性;在岩浆侵入、结晶、冷凝过程中,一部分含矿热液沿着构造裂隙充填形成黑钨—石英脉型矿床。另一部分含矿热液沿F1断裂流动,沿途与含钙岩石发生交代,形成矽卡岩型白钨矿矿床。通过进一步加深对矿床成因的认识,有利于扩大该区深部及外围找矿工作。

Based on the discussion of the geological characteristics of the anqiantan tungsten deposit,it is considered that the Anqiantan Granite,the parent rock of ore formation,is an intrusion product of the third stage in the early stage of the Yan Mountains,and has good differentiation,a part of ore-bearing hydrothermal solution fills along the tectonic fissures to form the tungsten-quartz vein deposit.The other part of ore-bearing hydrothermal fluid flows along the F1 fault and metasomes with the calcareous rocks along the way to form the SICARN type scheelite deposit.The further understanding of the Genesis of the deposit is beneficial to the extension of the deep and peripheral prospecting work in this area.