摘要
摩天岭地块位于松潘-甘孜造山带,东西向断裂、褶皱及岩浆热穹隆发育。印支期花岗岩浆活动强烈,分布17个岩体,具有Be、Cs、Ba等异常,为锂铍矿的成矿母岩。岩体外接触带蚀变分带较为明显,在内接触带和外接触带的十字石带中产出花岗伟晶岩型锂铍矿和电气石石英脉型锂铍矿,成矿条件较好。区域印支期花岗岩成矿母岩广布,白钨矿重砂异常及Sn-Li-Be-Cs水系异常发育,已发现并圈定了锂铍矿体,具有较好的找矿前景,在四川开辟了锂铍矿新的找矿区域。
The Motianling block is located in the Songpan-Ganzi orogenic belt,with east-west faults,folds and magmatic hot domes.The Indosinian granites have strong magmatic activity and 17 rock bodies with Be,Cs,Ba and other anomalies,which are the ore-forming parent granites of lithium beryllium ores.The alteration zoning of the outer contact zone of the rock body is obvious,and the granite-pegmatite lithium beryllium ores and tourmaline quartz vein lithium beryllium ores are developed in the cross stone zone of the inner contact zone and the outer contact zone,and the metallogenic conditions are better.The Indosinian granite ore-forming parent rocks are widely distributed,scheelite heavy mineral anomalies and Sn-Li-Be-Cs stream sedimentary anomalies are developed,and lithium beryllium ore bodies have been discovered and delineated,which has a good prospecting prospect,and a new lithium beryllium ore prospecting area has been indicated.
作者
刘晓雪
刘增达
罗光华
LIU Xiao-xue;LIU Zeng-da;LUO Guang-hua(No.604 Team of Sichuan Metallurgical Geological Exploration Bureau,Guangyuan,Sichuan 628017)
出处
《四川地质学报》
2022年第4期589-595,共7页
Acta Geologica Sichuan
基金
川西平武—马尔康地区锂矿综合调查评价(DD20160055)。
关键词
锂铍矿
成矿条件
找矿前景
摩天岭地块
lithium beryllium ore
metallogenic conditions
prospecting prospect
Motianling block
