现代地质
現代地質
현대지질
GEOSCIENCE-JOURNAL OF GRADUATE SCHOOL CHINA UNIVERSITY OF GEOSCIENCES
2010年
1期
107-111
,共5页
赵兴国%苏尚国%王水炯%杨帅师%侯建光%池涵
趙興國%囌尚國%王水炯%楊帥師%侯建光%池涵
조흥국%소상국%왕수형%양수사%후건광%지함
铂族金属矿物%岩浆期后流体%文圪乞镁铁质-超镁铁质岩体%内蒙古固阳县
鉑族金屬礦物%巖漿期後流體%文圪乞鎂鐵質-超鎂鐵質巖體%內矇古固暘縣
박족금속광물%암장기후류체%문을걸미철질-초미철질암체%내몽고고양현
platinum group mineral%post magmatic hydrothermal fluid%Wen'geqi mafic-ultramafic complex%Guyang County%Inner Mongolia
在内蒙古固阳县文圪乞镁铁质-超镁铁质岩体中发现了砷铂矿、砷锑钯矿和黄碲钯矿等铂族金属矿物.野外观察和室内电子探针分析发现,砷铂矿与磁铁矿、绿泥石共生,砷锑钯矿和黄碲钯矿与黄铁矿共生.铂族金属主要赋存在二辉石岩中,且在镁铁质-超镁铁质杂岩体中呈脉状产出.文圪乞铂族金属的分布、产状及特征显示岩浆作用对铂族金属的富集起着关键的控制作用,岩浆期后的热液作用对铂族金属迁移、富集也起着关键作用.
在內矇古固暘縣文圪乞鎂鐵質-超鎂鐵質巖體中髮現瞭砷鉑礦、砷銻鈀礦和黃碲鈀礦等鉑族金屬礦物.野外觀察和室內電子探針分析髮現,砷鉑礦與磁鐵礦、綠泥石共生,砷銻鈀礦和黃碲鈀礦與黃鐵礦共生.鉑族金屬主要賦存在二輝石巖中,且在鎂鐵質-超鎂鐵質雜巖體中呈脈狀產齣.文圪乞鉑族金屬的分佈、產狀及特徵顯示巖漿作用對鉑族金屬的富集起著關鍵的控製作用,巖漿期後的熱液作用對鉑族金屬遷移、富集也起著關鍵作用.
재내몽고고양현문을걸미철질-초미철질암체중발현료신박광、신제파광화황제파광등박족금속광물.야외관찰화실내전자탐침분석발현,신박광여자철광、록니석공생,신제파광화황제파광여황철광공생.박족금속주요부존재이휘석암중,차재미철질-초미철질잡암체중정맥상산출.문을걸박족금속적분포、산상급특정현시암장작용대박족금속적부집기착관건적공제작용,암장기후적열액작용대박족금속천이、부집야기착관건작용.
Three kinds of platinum group minerals (PGMs) are found in the Wen'geqi mafic-ultramafic complex in Guyang County, Inner Mongolia. They are sperrylite which occurs together with magnetite and chlorite, and mertieite and kotulskite which occur together with pyrite. Based on field observations and electron microprobe analysis, PGMs mainly occur in websterite, and the websterite is distributed in mafic-ultramafic complex as a dike. The distribution, occurrence and characteristics of PGMs in the Wen'geqi mafic-ultramafic complex show that magmatism plays an important role in the formation of platinum group element ore deposits;and the post magmatic hydrothermal fluids also affect on the migration and concentrtion of PGMs.