CAJ | 학술논문

麻花坪矿床位于扬子地块西缘盐源-丽江陆架裂陷褶皱带,三江口-剑川深断裂东侧,是一个大型的钨铍矿床。自该矿床发现以来,有关其地球化学特征未见有报道,本文通过两件矿石样和两件围岩样的稀土、微量元素、铅同位素地球化学特征分析,认为麻花坪钨铍矿床的物质来源具明显的“多源性”特征,以深源为主,围岩亦提供了矿质；矿石的气-液包体测温显示成矿流体温度为350o-151o,结合流体性质的讨论,认为麻花坪矿床属后成深源为主的混源中高温热液型钨铍矿床。
마화평광상위우양자지괴서연염원-려강륙가렬함습추대,삼강구-검천심단렬동측,시일개대형적오피광상。자해광상발현이래,유관기지구화학특정미견유보도,본문통과량건광석양화량건위암양적희토、미량원소、연동위소지구화학특정분석,인위마화평오피광상적물질래원구명현적“다원성”특정,이심원위주,위암역제공료광질；광석적기-액포체측온현시성광류체온도위350o-151o,결합류체성질적토론,인위마화평광상속후성심원위주적혼원중고온열액형오피광상。
Mahuaping deposit which is located in the western margin of the Yangtze block Yanyuan-Lijiang rift shelf fold belt and the east of Sanjiangkou-Jianchuan deep fault is abundant in beryllium and tungsten. Since the deposit has been discovered, there is no report on the geochemistry. In this paper, based on the study of geochemistry characteristics of two pieces of ore samples and two pieces of wall rock samples in HREE and the isotopes of Lead, the author concludes that the material sources of Mahuaping beryllium and tungsten deposit have obvious characteristic of diversity, however, the dominant sources are very deep. By the way, the wall rocks also provide the material sources. The ore-forming fluid temperature of ore’s gas-liquid inclusions is 350oto 151o. Combining with the discussion of the fluid nature, the author concludes that Mahuaping is a mixed source of deep source-based and a medium to high-temperature hydrothermal tungsten and beryllium deposit.