福建闽侯赤坪里钼矿地质特征及找矿前景探讨

Geological Characteristics and Exploration Perspective of the Chipingli Molybdenum Deposit in Minhou county,Fujian Province

闽侯赤坪里钼矿产于晚侏罗世火山岩中,区内有少量晚侏罗世斑岩体,岩体内外接触带具较强黄铁矿化、硅化、绢英岩化蚀变。Mo土壤异常呈椭圆形面状分布,规模较大。根据现有工作成果,圈出6个钼矿体,4个低品位钼矿体。矿体呈脉状、透镜状产出,地表具全岩钼矿化特征。推测深部有大型岩体提供热液,在其内外接触带形成斑岩型钼矿床。该区具有较好的找矿远景。

The Chipingli Molybdenum deposit is produced by cracks of late Jurassic Volcanic rocks around the deposit. There is a few porphyry bodies. The alterations, such as pyritization, sericitization and silicification, are closely associated with the contact zone. The anomaly ele- ment of Molybdenum showed large oval face shape. The deposit have been found ten ore bodies and the ore bodies type is vein and lenticular mainly. The mineral is mainly Molybden- ite, which is well related with phyllic alteration and pyritization, belonging to the porphyry type deposit. Analysis shows that there is good exploration perspective for molybdenite.