全部 标题 作者
关键词 摘要

OALib Journal期刊
ISSN: 2333-9721
费用:99美元

查看量下载量

相关文章

更多...
矿床地质  2009 

豫西熊耳山寨凹钼矿床辉钼矿铼-锇年龄及其地质意义

Keywords: 地球化学,Re-Os同位素定年,辉钼矿,钼矿床,成矿谱系,寨凹,豫西

Full-Text   Cite this paper   Add to My Lib

Abstract:

寨凹钼矿床位于河南熊耳山地区,是新近发现的穿插于太古宙太华岩群深变质岩中的辉钼矿石英脉型钼矿床。为了获得该钼矿床的成矿年龄,从10件采自辉钼矿石英脉的样品中挑选出辉钼矿单矿物进行Re-Os同位素年龄测定。10件辉钼矿样品22次测定结果的年龄最小值为(1680±24)Ma,最大值为(1831±29)Ma。其中10件辉钼矿粗粒(自然粒度)状态下13次测定结果的等时线年龄为(1686±67)Ma,MSWD=16;4件研磨后粉末状辉钼矿9次测定结果的等时线年龄为(1804±12)Ma,MSWD=1.09。两条等时线的初始187Os值在误差范围内接近于0,表明187Os全部由Re衰变而来。上述结果表明,寨凹钼矿床形成于17~18亿年的中元古代早期,是目前中国已知最老的钼矿床,为中元古代早期华北克拉通伸展裂解环境中构造岩浆热事件所伴随的热液成矿作用的产物,与熊耳群火山岩浆活动有密切的时空和成因联系;辉钼矿的Re含量为4.832×10-6~0.665×10-6,平均3.045×10-6,表明成矿物质可能来自围岩地层。东秦岭地区从元古宙到印支期、燕山期的钼矿化构成该区的钼成矿谱系,寨凹钼矿床可能是该谱系中最早的端员。

References

[1]  Stein H J, Markey R J, Morgan J W, Du A D and Sun Y. 1997. Highly precise and accurate Re-Os ages for molybdenum from the East Qinling molybdenum belt, Shaanxi Province, China [J]. Econ. Geol. , 98: 175-180.
[2]  Stein H J, Markey R and Schersten A. 2001. Re-Os dating of Archean orogenic Au deposits in the Yilgarn, Western Australia [J]. Abstracts with Programs Geological Society of America, 33(6) : 130.
[3]  WangDH, LuoYN, QuWJ, LiYQ, FuDM, LiYG, LiCJ, Chen Z Y and Fu X F. 2007. Geology, geochemistry and prospecting of PGE deposits in SW China[M]. Beijing: Geol. Pub. House. 234-235(in Chinese).
[4]  Wang L B, Ji K J and Chen D. 1997. Re-Os isotope ages of molybdenite from the Anjishan copper deposit and the Tongshan copper-molybdenum deposit and their implieations [J].Acta Petrologica et Mineralogica, 16 (2) : 154-159 (in Chinese with English abstract).
[5]  Ye H S, Mao J W, Li Y F, Guo B J, Zhang C Q, Liu J, Yan Q R and Liu G Y. 2006. SHRIMP zircon U Pb and molybdenite ReOs dating for the superlarge Donggou porphyry Mo deposit in east Qinling, China, and its geological implication [J]. Acta Geologiea Sinica, 80 (7) : 1078-1088 (in Chinese with English abstract).
[6]  Yu J H, Fu H Q, Ilmari H, Tapani O R, Matti V and James K M. 1996. A 1. 70 Ga anorogenic rapakivi granite suite in the northern part of North China Craton[J]. Jour. Geol. & Min. Res. North China, 11 (3): 341-350 (in Chinese with English abstract).
[7]  Zhang S H, Liu S W, Zhao Y, Yang J H, Song B and Liu X M. 2007. The 1. 75 - 1. 68 Ga anorthosite-mangerite-alkali granitoid-rapakivi granite suite from the northern North China Craton. Magmatism related to a Paleoproterozoic orogen[J]. Precambrian Research, 155:287-312.
[8]  Zhao T P, Chen F K, Zhai M G and Xia 13. 2004a. Single zircon UPb ages and their geological significance of the Damiao anorthosite complex, Hebei Province, China [J]. Acta Petrologica Sinica, 20 (3): 685-690 (in Chinese with English abstract).
[9]  ZhaoTP, Zhai M G, Xia B, Li H M, Zhang Y X and Wan Y S. 2004b. Study on the zircon SHRIMP ages of the Xiong\\'er Group volcanic rocks: Constraint on the starting time of covering strata in North China Craton[J]. Chinese Science Bulletin, 9 (23): 2495-2502(in Chinese).
[10]  Zhao Y M, Bi C S, Zou X Q, Sun Y L, Du A D and Zhao Y M. 1997. The Re Os isotopic age of molybdenite from Duobaoshan and Tongshan porphyry copper (molybdenum) deposits[J]. Acta Geoscientia Siniea, 18 ( 1 ) : 61-67 (in Chinese with English abstract).
[11]  Zimmerman A, Stein H J, Markey R J, Hannah J L, Sarkar S C and Pal A B. 2002. Re-Os dating of the Malanjkhand Cu(Mo) deposit in central India, tracking formation and deformation during the late Archean-early Proterozoic[J]. Abstracts with Programs-Geological Society of America, 34(6): 187.
[12]  Barra F, Broughton D W, Ruiz J and Hitzman M W. 2004. Multistage mineralization in the Zambian Copperbelt based on ReOs isotope constraints [J]. Abstracts with Programs Geological Society of America, 36(5) : 516.
[13]  Bingen B and Stein H J. 2003. Molybdenite Re-Os dating of biotite dehydration melting in the Rogaland high-temperature granulites, S. Norway[J].Earth and Planetary Science Letters, 208(3-4) : 181-195.
[14]  Bingen B, Stein H J, Bogaerts M, Bolle O and Mansfeld J. 2006. Molybdenite Re-Os dating constrains gravitational collapse of the Sveconorwegian Orogen, SW Scandinavia[J]. Lithos, 87 (3-4) 328-346.
[15]  ChenYC, Xue C J, Wang D H, Li H Q and Lu Y F. 2003. A discussion on the regional mineralizing pedigree of the ore deposits in the northern margin of the North China Landmass[J].Geological Journal of China Universities, 9(4) : 520-535 (in Chinese with English abstract).
[16]  DaiJ Z, Mao J W, DuAD, Xie G Q, BaiJ, Yang F Q and Qu W J. 2007. Re Os dating of molybdenite from the Xiaojiayingzi Mo (Fe) deposit in Western Liaoning and its geological significance [J]. Acta Geologica Sinica, 81(7)~ 917 923(in Chinese with English abstract).
[17]  DaiJ Z, Mao J W, Yang F Q, Ye H S, Zhao C S, Xie G Q and Zhang C Q. 2006. Geological characteristics and geodynamic background of molybdenum (copper) deposits along Yanshan Liaoning metallogenic belt on northern margin of North China block[J].Mineral Deposits, 25 (5):598-612 (in Chinese with English abstract).
[18]  Du AD, QuWJ, Wang D H, LiHM, Feng C Y, LiuH, Ren J and Zeng F G. 2007. Subgrain-size decoupling of Re and 187O5 within molybdenite[J]. Mineral Deposits, 26(5): 573-580(in Chinese with English abstract).
[19]  Gillerman V S, Jercinovic M J and Stein H J. 2002. U Pb and Re-Os geochronology suggest a multistage Precambrian Mesozoic history for thorium and copper mineralization, Lemhi Pass, Idaho [J]. Abstracts with Programs - Geological Society of America, 34(6): 337.
[20]  GuoBJ, MaoJW, LiHM, QuWJ, QiuJJ, YellS, LiMWand Zhu X L. 2006. Re-Os dating of the molybdenite from the Qiushuwan Cu-Mo deposit in the east Qinling and its geological significance[J]. Acta Petrologiea Sinica, 22(9) : 2341-2348 (in Chinese with English abstract).
[21]  Huang D H, Wang Y C, Nie F J and Jiang X J. 1985. A new type of molybdenum deposit Geological characteristics and metallogenic mechanism of the Huanglongpu carbonatite vein type molybdenum (lead) deposit, Shaanxi[J]. Acta Geologica Sinica,59:241-267(in Chinese with English abstract).
[22]  Huang D H, Wu C Y, Du A D and He H L. 1994. Re-Os isotope ages of molybdenum deposits in the East Qinlin and their significance[J]. Mineral Deposits, 13 (3) : 221-300 (in Chinese with English abstract).
[23]  Lentz D R and Creaser R A. 2005. Re/ Os model age constraints on the genesis of the Moss molybdenite pegmatite-aplite deposit, southwestern Grenville Province, Quyon, Quebec, Canada[J]. Exploration and Mining Geology, 14(1-4): 95 103.
[24]  LiH M, ChenYC, YeHS, WangDH, GuoBJandLiYF. 2008. Mo, (W), Au, Ag, Pb, Zn minerogenetie series related Mesozoic magmatic activities in the east Qinling-Dabie mountains [J]. Acta Geologica Sinica, 82(11) : 1468-1477 (in Chinese with English ahstraet).
[25]  Li H M, YellS, MaoJ W, WangDH, ChenYC, QuWJ andDu A D. 2007. Re Os dating of molybdenites from Au (Mo) deposits in Xiaoqinling gold ore district and its geological significance[J].Mineral Deposits, 26 (4) : 417-424 (in Chinese with English abstract).
[26]  Li H Q, Wu H, Chen F W, Deng G, Yang H M, Yang Z F, Mei Y P and Guo J. 2005. Isotopic chronological evidence for Yanshanian diagenetic mineralization in Baishan RheniumMolybdenum mine, E. Tianshan Mountains[J]. Acta Geologica Sinica, 79(2) : 249 255(in Chinese with English abstract).
[27]  LiJ H, Qian X L, Hou G T, Liu S W and Chen J. 2000. Late Palaeo proterozoic to early Meso proterozoic tectonic framework and major tectono-thermal episodes of North China[J]. Earth Science, 25(1) : 15-20 (in Chinese with English abstract).
[28]  Li Y F, Mao J W, Guo B J, Shao Y J, Fei H C and Hu H B. 2004. Re-Os dating of molybdenite from the Nannihu Mo (-W) orefield in the East Qinling and its geodynamic significance[J].Acta Geologica Sinica, 78 ( 2 ) : 463-470 ( in Chinese with English abstract).
[29]  LiYF, MaoJ W, BaiFJ, LiJ Pand HeZJ. 2003. Re-Osisotopic dating of molybdenites in the Nannihu molybdenum (tungsten) orefield in the Eastern Qinling and its geodynamic significance [J]. Geological Review, 49 (6): 652-659 (in Chinese with English abstract).
[30]  LiYF, MaoJ W, Hu H B, Guo BJ and Bai FJ. 2005. Geology, distribution, types and tectonic settings of Mesozoic molybdenum deposits in East Qinling area[J]. Mineral Deposits, 24(3) : 292- 304(in Chinese with English abstract).
[31]  Li Y F, Mao J W, Liu D Y, Wang Y 13, Wang Z L, Wang Y T, Li X F, Zhang Z H and Guo B J. 2006. SHRIMP zircon U Pb and molybdenite Re-Os dating for the Leimengou porphyry molybdenum deposit, western Henan and its geological implication[J].Geological Review, 52 (1) : 122-131 (in Chinese with English abstract).
[32]  更多...
[33]  Li Z Q, WangJ Z, Liu J J, Li C Y, Du A D, Liu Y P and Ye L. 2003. Re-Os dating of molybdenite from Lala Fe Oxide-Cu AuMo REE deposit, southwest China: implications for ore genesis [J].Geology and Explorating, 18(1): 39-42(in Chinese with English abstract).
[34]  LuXX, Yu Z P, Feng Y L, Wang Y T, Ma W F and Cui H F. 2002. Mineralization and tectonic setting of deep-hypabyssal granites in the East Qinling mountain[J]. Mineral Deposits, 21(2) : 168-178(in Chinese with English abstract).
[35]  Mao J W, Zhang Z C, Zhang Z H et al. 1999. Re Os isotopic dating of molybdenites in the Xiaoliugou W(Mo) deposit in the northern Qilian mountains and its geological signifieance[J]. Geoehimica et Cosmochimica Acta, 63(11-12):1815-1818.
[36]  Mao J W and Du A D. 2001a. The 982 Ma Re-Os age of coppernickel sulfide ores in the Baotan area, Guangxi, and its geological significance[J]. Scinece in China (Series D), 31(12): 992-998 (in Chinese).
[37]  MaoJ W, ZhangGD, Du AD, WangYTandZengMG. 200lb. Geology, geochemistry, and Re-Os isotopic dating of the Huangjiawan Ni-Mo PGE deposit, Zunyi, Guizhou Province[J]. Acta Geologica Sinica, 75 (2):234-243 (in Chinese with English abstract).
[38]  Mao J W, Steins H J, Du A D, Zhou T F, Mei Y X, Li Y F, Zang W S and Li J W. 2004. Molybdenite Re Os precise dating for molybdenite from Cu-Au Mo deposits in the Middle Lower Reaches of Yangtze River Belt and its implications for mineralization[J]. Aeta Geologica Sinica, 78 ( 1 ) : 121-131 (in Chinese with English abstract).
[39]  Mao J W, Xie G Q, Zhang Z H, Li X F, Wang Y T, Zhang C Q and Li Y F. 2005. Mesozoic large-scale metallogenic pulses in North China and corresponding geodynamic settings [J]. Acta Petrologica Sinica, 21 (1), 169-188 (in Chinese with English abstract).
[40]  Marschik R, Mathur R and Ruiz J. 2002. An Archean Re-Os molybdenite age for the Gameleira Cu-Au Mo mineralization, Carajas Province, Brazil [J]. Abstracts with Programs - Geological Society of America, 34(6) : 337.
[41]  Meng X J, Hou Z Q, Gao Y F, Huang W, Qu X M and Qu W J. 2003. Development of porphyry copper-molybdenum lead-zinc ore-formirtg system in east Gangdese Belt, Tibet: Evidence from Re-Os age of molybdenite in Bangpu copper polymetallic deposit [J].Mineral Deposits, 22(3) : 246 252(in Chinese with English abstract).
[42]  Nie F J, Jiang S H, Zhao X M, Bai D M, Liu Y, Zhao Y M, Wang X L and Su X X. 2002. Geological features and metallogenic type of the Liushashan gold (molybdenum) deposit in Ejin Qi ( Prefecture ), western Inner Mongolia [J]. Geology Geochemistry, 30(1) : 1-7 (in Chinese with English abstract).
[43]  Nie F J, Qu W J, Liu Y, Du A D and Jiang S H. 2005. Re-Os isotopic age dating of molybdenite separates from Elegen porphyry Mo ( Cu ) mineralized area, northwestern Alxa, western Inner Mongolia[J]. Mineral Deposits, 24 (6) : 638-646 (in Chinese with English abstract).
[44]  NieFJ, ZhangWY, Du A D, JiangS H and Liu Y. 2007. ReOs isotopic dating on molybdenite separates from the Xiaodonggou porphyry Mo deposit, Hexigten Qi, Inner Mongolia[J]. Acta Geologica Sinica, 81 ( 7 ) : 898-905 ( in Chinese with English abstract).
[45]  Ootes L, Lentz D R, Creaser R A, 2007. Re-Os molybdenite ages Ketchum J W F and Falck H. from the Archean Yellowknife greenstone belt : comparison to U-Pb ages and evidence for metal introduction at approximately 2675 Ma[J]. Economic Geology and the Bulletin of the Society of Economic Geologists, 102(3) : 511-518.
[46]  Pierotti G M, Mathur R, Smith R C and Barra F. 2006. Re-Os molybdenite ages for the Antietam Reservoir, eastern Pennsylvania, a story of open-system behavior Re-Os isotopes in molybdenite[J]. Abstracts with Programs - Geological Society of America, 38(2): 24.
[47]  Ren K X, Yan G H, Cai J H, Mu B L, Li F T, Wang Y B and Chu Z Y. 2006. Chronology and gcological implication of the Palaeomesoproterozoic alkaline-rich intrusions belt from the northern part in the North China Craton[J]. Acta Petrologica Sinica, 22 (2) : 377-386 (in Chinese with English abstract).
[48]  Santosh M, Suzuki K and Masuda A. 1995. Re-Os dating of molybdenites from southern India: Implication for Pan-African metallogeny [J]. Gondwana Research Group Memoir, (2) : 31-36.
[49]  Stein H J and Bingen B. 2002. 1. 05 1. 01 Ga Sveconorwegian metamorphism and deformation of the supracrustal sequence at Saesvatn, South Norway: Re Os dating of Cu-Mo mineral occurrences[J]. Geological Society Special Publications, 204: 319-335.

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133