岩石学报
巖石學報
암석학보
ACTA PETROLOGICA SINICA
2009年
11期
2747-2751
,共5页
魏庆国%姚军明%赵太平%孙亚莉%李晶%原振雷%乔波
魏慶國%姚軍明%趙太平%孫亞莉%李晶%原振雷%喬波
위경국%요군명%조태평%손아리%리정%원진뢰%교파
Re-Os年龄%辉钼矿%龙门店钼矿%东秦岭
Re-Os年齡%輝鉬礦%龍門店鉬礦%東秦嶺
Re-Os년령%휘목광%룡문점목광%동진령
Re-Os age%Molybdenite%Longmendian Mo deposit%East Qinling Orogen
河南龙门店钼矿床位于华北陆块南缘熊耳山地区,其赋矿围岩为新太古代一古元古代太华群片麻岩.6件辉钼矿样品的Re-Os模式年龄最小值为1868±6Ma,最大值为2044±14Ma,等时线年龄为1875Ma,表明该矿床形成于早元古代,是目前我国已知最老的钼矿床.
河南龍門店鉬礦床位于華北陸塊南緣熊耳山地區,其賦礦圍巖為新太古代一古元古代太華群片痳巖.6件輝鉬礦樣品的Re-Os模式年齡最小值為1868±6Ma,最大值為2044±14Ma,等時線年齡為1875Ma,錶明該礦床形成于早元古代,是目前我國已知最老的鉬礦床.
하남룡문점목광상위우화북륙괴남연웅이산지구,기부광위암위신태고대일고원고대태화군편마암.6건휘목광양품적Re-Os모식년령최소치위1868±6Ma,최대치위2044±14Ma,등시선년령위1875Ma,표명해광상형성우조원고대,시목전아국이지최로적목광상.
The Longmendian Mo deposit,located in the Xiong' ershan area of Henan Province,is hosted in Archean-Paleozoic gneisses of the Taihua Group in the southern margin of the North China craton.Re-Os model ages of five molybdenite samples range from 1868±6Ma to 2044±14Ma and give an isochron age of 1875Ma.These ages suggest that the Longrnendian Mo deposit was formed during Palaeoproterozoic,and is the oldest Mo deposit found in China.
