Re-Os同位素年龄
Re-Os同位素年龄的相关文献在1998年到2021年内共计66篇,主要集中在地质学
等领域,其中期刊论文66篇、专利文献101990篇;相关期刊25种,包括大地构造与成矿学、岩石学报、中国地质等;
Re-Os同位素年龄的相关文献由315位作者贡献,包括李超、屈文俊、叶会寿等。
Re-Os同位素年龄—发文量
专利文献>
论文:101990篇
占比:99.94%
总计:102056篇
Re-Os同位素年龄
-研究学者
- 李超
- 屈文俊
- 叶会寿
- 张达
- 杜安道
- 狄永军
- 聂凤军
- 范飞鹏
- 刘翼飞
- 吕良冀
- 吴淦国
- 曾法刚
- 李海立
- 毛景文
- 肖惠良
- 谢桂青
- 路东宇
- 陈乐柱
- 于淼
- 付超
- 党智财
- 冯旭彪
- 冯晓曦
- 刘彦伟
- 周利敏
- 周勇
- 周珂
- 唐文龙
- 唐菊兴
- 姚书振
- 孟芳
- 张兴康
- 张志辉
- 抄尉尉
- 曲凯
- 李俊建
- 段明
- 潘天望
- 王京彬
- 王佳营
- 王玉往
- 王登红
- 王赛
- 王鹏
- 简伟
- 罗平
- 莫宣学
- 董国臣
- 袁远
- 赵财胜
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张志远;
王文浩;
丁照月;
安跃辉;
王志敏;
陈志宽;
谢桂青
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摘要:
赤瓦屋斑岩型钼铜矿床是太行山北段斑岩-矽卡岩成矿带内探明的一个中型钼铜矿床,钼铜矿体主要赋存于赤瓦屋岩体内部相的斑状花岗闪长岩中.为厘定赤瓦屋钼铜矿床的成矿时代和成矿物质来源,利用辉钼矿Re-Os同位素定年方法对赤瓦屋钼铜矿床中7件辉钼矿样品进行了成矿年代学测定,获得的模式年龄为129.1~130.6 Ma,年龄加权平均值为129.7±0.7 Ma,对应的等时线年龄为128.7±4.4 Ma,模式年龄和等时线年龄在误差范围内基本一致,指示赤瓦屋钼铜矿床形成于早白垩世.赤瓦屋钼铜矿床辉钼矿样品的Re含量为25.9×10-6~37.1×10-6,表明其成矿物质来源于壳幔混源.结合区域年代学资料,认为太行山北段成矿带在134~124 Ma存在一期岩浆热液成矿事件,斑岩铜矿型钼铜矿床的找矿潜力较大.
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范飞鹏;
肖凡;
项红亮;
陈世忠;
李超;
周延;
陈凯;
曹明轩
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摘要:
福建德化邱埕钼矿床是德化—尤溪—永泰矿集区唯一一处规模较大的钼矿床.辉钼矿体分布在花岗斑岩外接触带,辉钼矿多沿中新元古代变质岩和晚侏罗世花岗岩裂隙分布,多呈浸染状、脉状和团块状.本次测得该矿床6件辉钼矿样品Re-Os模式年龄为150.1~152.8 Ma,187Re-187Os等时线年龄为(150.8±1.6)Ma,加权平均年龄为(151.8±0.9)Ma,表明成矿时代为晚侏罗世晚期,与该地区大规模的火山-侵入体活动相关;Re/Os比值远大于4,Re同位素含量14.31×10-6~45.8×10-6(最高达174.7×10-6),指示成矿物质主要来源于壳源,可能还有少量幔源物质的加入.邱埕钼矿床的形成可能为古太平洋板块朝东亚陆缘碰撞挤压作用结束向伸展作用转化过程的产物.
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李海立;
肖惠良;
陈乐柱;
范飞鹏
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摘要:
葛藤垇钨钼多金属矿床为赣南地区典型的热液石英脉型矿床,矿体主要赋存于燕山期花岗岩中,受NW向及近EW向断裂带控制.通过对该矿床进行详细的野外地质调查,并对矿体中的6个辉钼矿样品进行Re-Os同位素测试分析,获得了187 Re-187 Os等时线年龄为(159.0±0.4) Ma,加权平均年龄为(162±2) Ma (MSWD= 1. 3),表明该矿床的成矿时代为燕山早期,与赣南区域成矿事件相吻合.Re/Os值(>4)及187 Re含量((69. 0~625. 4) ×10-9)指示矿床成矿物质来源于地壳,为燕山早期第二阶段壳源花岗岩分异演化与岩浆晚期热液共同作用的产物.
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李海立;
肖惠良;
陈乐柱;
范飞鹏
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摘要:
葛藤垇钨钼多金属矿床为赣南地区典型的热液石英脉型矿床,矿体主要赋存于燕山期花岗岩中,受NW向及近EW向断裂带控制。通过对该矿床进行详细的野外地质调查,并对矿体中的6个辉钼矿样品进行Re-Os同位素测试分析,获得了187Re-187Os等时线年龄为(159.0±0.4)Ma,加权平均年龄为(162±2)Ma(MSWD=1.3),表明该矿床的成矿时代为燕山早期,与赣南区域成矿事件相吻合。Re/Os值(>4)及187Re含量((69.0~625.4)×10-9)指示矿床成矿物质来源于地壳,为燕山早期第二阶段壳源花岗岩分异演化与岩浆晚期热液共同作用的产物。
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李宁;
杨富全;
李超;
张志欣;
杨成栋
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摘要:
小白石头钨(钼)矿床位于新疆东天山造山带中的中天山地块南缘,该矿床是一个由黑云母花岗岩和花岗闪长岩侵入中元古界卡瓦布拉格群形成的矽卡岩型钨(钼)矿床.辉钼矿作为其主要的矿石矿物之一,呈不同产出状态分布于花岗闪长岩、黑云母花岗岩、矽卡岩和石英脉中.目前,对于小白石头钨(钼)矿成矿时代尚有争议,特别是与花岗闪长岩有关的辉钼矿化形成时代缺乏精确的限定.本文选取与花岗闪长岩有关的不同产状辉钼矿进行Re-Os同位素定年,获得Re-Os加权平均模式年龄为245.0±1.7Ma,Re-Os等时线年龄为245.5±4.3Ma.准确的Re-Os同位素定年限定小白石头钨(钼)矿床的成矿年龄和花岗闪长岩的侵位年龄为245 Ma左右,为矿床模型建立和找矿方向确定提供了关键依据,同时也为东天山区域成矿规律总结提供了重要的年代学证据,并指出新疆东天山—甘肃北山地区存在一条找矿潜力巨大的三叠纪钨钼成矿带.
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龙灵利;
王京彬;
王玉往;
孙志远;
赵路通;
石煜
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摘要:
寨北山铜矿位于东天山阿奇山-雅满苏成矿带的东段.矿体主要赋存于早石炭世玄武安山玢岩中,受断裂构造控制明显.矿石以脉状、浸染状构造为主,矿石矿物主要为黄铜矿,黄铁矿较少.围岩蚀变较弱,分带性不明显.获得矿区黄铁矿Re-Os同位素模式年龄为337.9 ±5.7 Ma,表明该矿床形成于早石炭世.矿区硫化物硫同位素δ34S值介于-1.4‰~-7.2‰之间,接近于幔源硫值;矿石石英中δD值为-105.6‰~-96.4‰,δ1sO值为0.3‰~3.2‰,反映成矿流体主要来自岩浆.综合研究认为寨北山铜矿可能为一火山-次火山热液型矿床.
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耿艳光;
简伟;
李洪英;
叶会寿;
毕珉烽;
胡乔青;
李超;
范成龙;
王梦琦
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摘要:
篦子沟铜矿位于山西中条山胡-篦型铜矿田,矿体与地层产状一致,呈层状、似层状分布于中条群篦子沟组和余元下组中,经历了多期次多阶段成矿作用.为限定篦子沟铜矿后期热液脉状矿化的形成时代,对篦子沟铜矿区方解石-石英脉中与黄铜矿共生的辉钼矿样品进行了Re-Os同位素测定.结果表明,6件辉钼矿样品Re-Os同位素模式年龄为(1 539±26)~(1 616士26)Ma,加权平均年龄为(1 577±31)Ma(MSWD=5.5),等时线年龄为(1 522土180)Ma(MSWD=9.6),表明热液脉状矿化形成于中元古代长城纪晚期.据此篦子沟铜矿的热液脉状矿化可分为3个成矿期次,分别为古元古代晚期发生的微细脉浸染状矿化期、脉状矿化期和中元古代早期热液脉状辉钼矿矿化期.此次事件可能为中元古代伸展-裂解事件岩浆侵位产生的热液对原来的篦子沟铜矿进行再次的矿化、富集.结合已有资料,证明篦子沟以及中条山地区在中元古代早期存在热液矿化事件.%The Bizigou Cu deposit is located in the field of "Hu-Bi" type Cu ore district in Zhongtiao mountain in the southern edge of the North China craton,and it was formed through multiple mineralization events.The orebodies are consistent with the attitude of stratum,and are bedded in the Bizigou Formation and Yuyuanxia Formation.Molybdenite and chalcopyrite occur disseminated in the molybdenite-bearing calcite-quartz veins.Re-Os molybdenite model ages fall in the range from (1 539± 26) to (1 616±26) Ma with an isochron age of (1 522±180) Ma (MSWD=9.6) and a weighted mean model age of (1 577±31) Ma (MSWD=5.5),suggesting its hydrothermal vein mineralization formation in the Mesoproterozoic.In the hydrothermal mineralization of the Bizigou deposit,three mineralization events were identified:Paleoproterozoic disseminated mineralization,Paleoproterozoic vein-type mineralization,and Mesoproterozoic vein-type mineralization.This study indicates the existence of a Mesoproterozoic hydrothermal Cu mineralization event in the Bizigou and Zhongtiao Mountain region combining with the existing data.
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潘天望;
张达;
沈荣泉;
陈泉流;
袁远;
高孝巧;
狄永军
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摘要:
通过对平和包围山钼矿床成矿岩体、赋矿火山岩及辉钼矿开展同位素年代学研究,结果表明:包围山深部花岗斑岩LA-ICP-MS锆石U-Pb年龄为(98.1±1.1) Ma,容矿围岩-石帽山群底部凝灰熔岩成岩年龄为(104.6±1.1) Ma;矿体中辉钼矿的Re-Os同位素模式年龄为(95.2±1.5) Ma.辉钼矿中Re的含量指示成矿来源与壳幔物质混合或幔源物质进一步演化有关.结合矿床地质特征及已有的研究成果,笔者认为包围山钼矿床的形成可能与125~92Ma古太平洋板块的俯冲作用机制有关.受该期区域伸展构造背景的影响,上杭-云霄成矿带下地壳或上地幔部分熔融诱发了平和包围山一带岩浆-热液-成矿事件.%Based on isotopic chronological study of the ore-forming rock body,ore-bearing volcanic rocks and molybdenite from the Baoweishan molybdenum deposit in Pinghe County,the authors conducted LA-ICP-MS zircon U-Pb dating and revealed that the age of the Baoweishan porphyry-like granite is (98.1 ± 1.1) Ma,and the age of the tuff-lava in the bottom of the "Shimaoshan Group" formation,which is the host rock of this deposit,is (104.6 ± 1.1) Ma.Re-Os dating of molybdenite from the orebodies yielded a model age of (95.2 ± 1.5) Ma.These age data indicate that the Baoweishan molybdenum deposit was formed at the early stage of late Cretaceous.Furthermore,the rhenium values of molybdenum samples from the deposit indicate that the mineralization is genetically closely related to the crust-mantle or the further evolution of the mantle.Based on geological features of the Baoweishan molybdenum deposit and the research results in this study,the authors consider that this deposit was probably generated in an extensional setting related to the subduction process of the Paleo-Pacific plate beneath the Eurasian continent during 125~~92 Ma,which triggered the partial melting of the lower crust or the upper lithospheric mantle to form the magrnatic-hydrothermal ore-forming event in Baoweishan area along the Shanghang-Yunxiao ore-forming belt.
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李俊建;
赵丽君;
唐文龙;
付超;
李超;
屈文俊;
张彤;
王守光;
党智财;
周勇
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摘要:
In this paper, the authors conducted for the first time Re-Os isotope analysis of molybdenite from the Bilugangan porphy⁃ry Mo deposit in Abag Banner, Inner Mongolia and obtained the molybdenite Re-Os isotope modal ages between 236.9±3.7Ma and 238.7 ± 2.4Ma and weighted average value of 237.9 ± 1.7Ma , which indicate that the mineralization of Bilugangan Mo deposit oc⁃curred in Indosinian period. The average rhenium content of molybdenite is 74.065×10-6, suggesting the source of rhenium was char⁃acterized by mantle-crust mixing. Belonging to a porphyry Mo deposit, the deposit is located within the Slonker-Huolinguole arc-basin system of Da Hinggan Mountains-Inner Mongolia orogenic belt south of Hegenshan fault belt. Controlled by internal or exter⁃nal contact zones, the Mo orebodies are mainly situated inside the biotite granite porphyry and hornstone. The controlling or hosting faults in the contact zones are principally in NW, NE and approximately EW directions, and are filled with quartz veins. The stronger the development of stringer and stockwork quartz veins, the stronger the molybdenum mineralization. Regional researches reveal that Indosinian is one of the most important Mo(W) mineralization stages in Da Hinggan Mountains-Inner Mongolia orogenic belt and the adjacent areas in spite of the fact that this kind of deposit was discovered for the first time in this region. The results obtained by the authors provide important references for the further study of ore-forming regularity in the Slonker- Huolinguole metallogenic belt.%采用辉钼矿Re-Os同位素定年,获得的内蒙古阿巴嘎旗比鲁甘干钼矿的辉钼矿Re-Os同位素模式年龄变化范围为236.9±3.7~238.7±2.4Ma,年龄加权平均值为237.9±1.7Ma,表明该矿床形成时代应为印支期。辉钼矿的Re含量平均值为74.065×10-6,表明其主要为幔壳混合来源特征。该矿床位于贺根山断裂带以南的兴蒙造山系索伦山-霍林郭勒弧盆系内,为斑岩型钼矿床。钼矿体主要赋存在黑云母花岗斑岩和角岩内,受内外接触带控制。接触带控矿容矿断裂主要有北西向、北东向及近东西向,其内多充填有石英脉。细脉状、网脉状石英脉越发育,钼矿化越强。区域研究表明,印支期是兴蒙造山带及其邻区钼(钨)成矿的重要成矿期之一,但在本区尚属首次发现,为开展索伦山-霍林郭勒成矿带区域成矿规律研究提供了重要参考。