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矿床地质  2008 

新疆阿尔泰蒙库铁矿床的成矿流体及成矿作用

Keywords: 地质学,铁矿床,矽卡岩,流体包裹体,碳、氧、氢同位素,成矿作用,蒙库,阿尔泰

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Abstract:

蒙库大型铁矿床赋存于上志留统—下泥盆统康布铁堡组变质火山-沉积岩系中,容矿岩石为石榴子石矽卡岩、变粒岩、浅粒岩和大理岩。矿体总体顺层分布,空间上与矽卡岩密切相关。研究表明,矽卡岩期石榴子石以发育玻璃质熔融包裹体、流体熔融包裹体和流体包裹体为特征,晚期矽卡岩阶段矿物中发育液相包裹体,变质期矿物中主要发育液相包裹体和含子矿物包裹体。矽卡岩期熔融包裹体的均一温度为1100℃,早期矽卡岩阶段流体包裹体均一温度变化于193~499℃,在450℃、350℃和230℃出现峰值。中期矽卡岩阶段均一温度变化于236~550℃,峰值为350℃。区域变质期均一温度介于132~513℃,在350℃、230℃和190℃出现峰值。流体包裹体的盐度w(NaCleq)介于1.23%~60.31%,流体密度变化于0.60~1.16g/cm3。石榴子石、石英和方解石的δ18OSMOW变化于0.2‰~8.4‰,δ18OH2O介于-5.1‰~5.33‰,δD为-127‰~-81‰,表明矽卡岩期成矿流体主要是岩浆水,混合少量大气降水;变质期流体主要为大气降水,为混合变质水。方解石δ13CPDB变化于-6.1‰~-2.3‰,表明流体中碳来自深部或地幔。成矿时代为早泥盆世早期(略晚于404~400Ma),成矿作用与矽卡岩的退化变质作用有关。

References

[1]  Rui X J and Wu Y J. 1984. Genesis of granites in Altai, Xinjiang[A]. In: Xu K Q, ed. International Science Conference paper collection of geological and metallgenic relationship of granites[C]. Nanjing: Jiangsu Sci. and Techn. Pub. House. 281-291
[2]  Sheppard S M F. 1981. Stable isotope geochemistry of fluids. In: Richard D T and Wickman F E, ed. Chemistry and geochemistry of solutions at high temperatures and pressures [J]. Phys. Chem. Earth, 13/14: 419-445.
[3]  Sheppard S M F. 1986. Characterization and isotopic variations in natural waters[J]. Reviews in Mineralogy, 16: 165-183.
[4]  Sun J G, Hu S X, Shen K and Yao F L. 2001. Research on C, O iso- topic geochemistry of intermediate-basic and intermidiate-acid dykes in gold fields of Jiaodong Peninsula [J]. Aeta Petrologiea et Mineralogica, 20(1) : 47-56
[5]  Taylor B E. 1976. Origin and significance of C-O-H fluids in the formation of Ca-Fe-Si skarn, Osgood Mountains, Hunaboldt County, Nevada[D]. Unpublished PhD thesis, Stanford University. 306p.
[6]  Taylor H P. 1974. The application of oxygen and hydrogen isotope studies to problems of hydrothermal alteration and ore deposit[J].Econ. Geol., 69: 843-883.
[7]  Tong Y, Wang T, Hong D W, Dai Y J, Han B F and Liu X M. 2007. Ages and origin of the early Devonian granites from the north part of Chinese Altai Mountains and its tectonic implications [J]. Acta Petrologica Sinica, 23(8) : 1933-1944
[8]  Wan B and Zhang L C. 2006. Sr-Nd-Pb isotope geochemistry and tectonic setting of Devonian polymetallic metallogenic belt on the Southem margin of Altaid, Xinjiang[J]. Acta Petrologica Sinica, 22 (1) : 145-152
[9]  Wang D H, Chela Y C, Xu Z G, Li T D and Fu X J. 2002. Minerogenetic series and regularity of mineralization in the Altai metallogenetic Province, China[M]. Beijing: Atomic Press. 1-493
[10]  Wang J B, Qin K Z, Wu Z L, Hu J H and Ding J N. 1998. Volcanic exhalative sedimentary lead-zinc deposits in the South Margin of Altay Mountains, Xinjiang[M]. Beijing: Geol. Pub. House. 1-210
[11]  Wang T, Hong D W, Jahn B M, Tong Y, Wang Y B, Han B F and Wang X X. 2006. Timing, petrogenesis, and setting of Paleozoic synorogenic intrusions from the Altai Mountains, Northwest China: Implications for the tectonic evolution of an aceretionary orogen[J]. Journal of Geology, 114: 735-751.
[12]  Wang Y T, Zhang W Z, Wang L, MaoJ W, Yang F Q and Chen W. 2007. Tracing the sources of ore-forming fluids and materials of the Hongshi gold deposit in the Eastem Tianshan, Xinjiang, NW China [J]. Acta Petrologica Sinica, 23(8): 1998-2006
[13]  Wang Y W, Wang J B, Wang S L, Ding R F and Wang L J. 2003. Geology of the Mengku iron deposit, Xinjiang, China: A metamorphosed VMS [A]? In: Mao J W, Goldfarb R J, Seltmann R,Wang D H, Xiao W J and Hart C, ed. Tectonic evolution and metallogeny of the Chinese Altay and Tianshan[C]. Proceedings volume of the International Symposium of the IGCP-473 project in Urumqi and guidebook of the field excursion in Xinjiang, China: August 9- 21, 2003. London: Centre for Russian and Central Asian Mineral Studies, Natural History Museum. 181-200.
[14]  Wang Z G, Zhao Z H and Zou T R. 1998. Geochemistry of the granitoids in Altay[M]. Beijing: Science Press. 1-152
[15]  XuLG, MaoJ W, Yang F Q, YellS, Zheng J M, LiJG, Cai YB, Zha X L and Gao J J. 2007a. Skam characteristics of Mengku iron deposits in Xinjiang, and its geological slgnificance[J]. Mineral Deposits, 26(4): 455-463
[16]  Xu LG, Mao J W, Yang FQ, LiJG, CaiYB, Zheng J M and Huang C L. 2007b. Geology and geochemistry of the Mengku iron deposit in Fuyun County, Xinjiang Uigur Autonomous[J]. Acta Petrologica Sinica, 23(10): 2653-2664.
[17]  Yang F Q, MaoJ W, YanSH, LiuF, Chai F M, Zhou G, Liu GR, He L X, Geng X X and Dai J Z. 2008. Geochronology, geochemistry and geological implications of the Mengku synorogenic plagiogranite pluton in Altay, Xinjiang[J]. Acta Geologica Sinica, 82 (4) : 485-499
[18]  Yang F Q, Mao J W, XuLG, Zhang Y, LiuF, Huang C L, Zhou G, Liu G R and Dai J Z. 2007. REE geochemistry and the indication for iron mineralization of Mengku iron deposit in Xinjiang[J]. Acta Petrologica Sinica, 23 ( 10 ) : 2443-2456
[19]  Yang F Q, Mao J W, Wang Y T and Bierlein F P. 2006. Geology and geochemistry of the Bulong quartz-barite vein-type gold deposit in the Xinjiang Uygur Autonomus Region, Chlna[J]. Ore Geology Review, 29(1) : 52-76.
[20]  Zeng Q S, Chen G H, Wang H and Shan Q. 2007. Geochemical characteristic, SHRIMP zircon U-Pb dating and tectonic implication for granitoids in Chonghuer basin, Altai, Xinjiang[J]. Acta Petrologica Sinica, 23(8) : 1933-1944
[21]  Annikova I Y, Vladimirov A G and Vystavnoy S A. 2006. U-Pb, ^39Ar/^40Ar data and Sm-Nd, Pb-Pb isotopic study of Kalguta Mo-W oremagmatic system (Southern Altai, Russia)[J]. Petrologiya, 14 (1): 90-108.
[22]  Berzina A N, Stein H J, Zimmerman A end Somikov V I. 2003. Re-Os ages for molybdenite from porphyry Cu-Mo end greisen Mo-W deposits of southern SiSiberia (Russia) preserve metallogenie record [A]. In: Eliopoulos, et al. ed. Mineral exploration and sustainable development[C]. Rotterdam: Millpress. 213.
[23]  Bodnar R J. 1983. A method of caleulateing fluid inclusion volumes based on vapor bubble diameters and PVTX properties of inclusion fluids[J]. Econ. Geol., 78: 535-542.
[24]  Bodnar R J. 1993. Reviced equation and table for determining the freezing point depression of H2O-NaCl solutions[J]. Geochim. Cosmochim. Acta, 57: 683-684.
[25]  Burruss R C. 1981. Analysis of phase equilibria in C-O-H-S fluid inclu sions[A]. In: Hollister L S, Crawford M L, ed. Short course handbook[C]. Mineralogical Association of Canada. 6: 39-74.
[26]  Chang H L, WangXW, WangX D, Liu J Q and Huang H L. 2007. The composition of melt inclusions in beryl from wolframite-quartz veins in Xihuashan, Jiangxi province[J]. Acta Petrologica et Mineralogica, 26(3) : 259-268
[27]  Chen W, Han C M, Zhang Y and Xiu X Y. 2003. Studyon the genesis of Kanggur gold deposit based on the discordance of the metallogenic epoch and deformation time[J]. Arta Geoscientica Sinica, 24(6): 579-583
[28]  Clayton R N end Mayeda T K. 1963. The use of bromine pentafluoride in the extraction of oxygen from oxides end silicates for isotopic analysis [J]. Geochim. Cosmochim. Acta, 27: 43-52.
[29]  Clayton R N, O\\'Neil J R and Mayeda T K. 1972. Oxygen isotope exchange between quartz and water[J]. Journal of Geophysical Research, 77: 3057-3067.
[30]  Coleman M L, Sheppard T J, Durham J J, Rouse J E and Moore G R. 1982. Reduction of water with zinc for hydrogen isotope analysis [J]. Analytical Chemistry, 54: 993-995.
[31]  Dovgal V N, Tribunskiy E N, Sabotovich SAe and Distanova A N. 1997. Geological and substantial features of rare-metal Li-F granitoids of Altai[J]. Geologiyai Geofizika, 38(11) : 1807-1814.
[32]  Friedman I and O\\' Nell J R. 1977. Complication of stable isotope fractionation factors of geochemical interest in data of geochemistry[A]. In: Fleischer M, ed. Geological professional paper. U. S. Geological Survey[C]. 6th ed. 440p.
[33]  He G Q, Cheng S D, Xu X, Li J Y and Hao J. 2004. An introduction to the explanatory text of the map of tectonics of Xinjiang and its neighbouring areas[M]. Beijing: Geol. Pub. House. 1-65
[34]  Hedenquist J W and Lowenstem J B. 1994. The role of magma in the formation of hydrothermal ore deposits[J]. Nature, 370: 519-527.
[35]  Hoefs J. 1997. Stable isotope geochemistry[M]. 4rd ed. Berlin: Spring Verlag. 1-250.
[36]  Hu X P. 2004. Geological features and genesis of the Mengku iron deposit in the Fuyun, Xinjiang[J]. Xinjiang Non-Ferrous Metals, 1: 2-5, 8
[37]  Li J X, Jiang J, Hu X P, Kang J C and Yin Y Q. 2003. Geological features and genesis of the Mengku iron deposit in the Fuyun, Xinjiang [J]. Xinjiang Geology, 21(3): 307-311
[38]  Lin X D. 1999. Magma-hydrothermal transitional ore deposits[M]. WuHan: China University of Geoseienees Press. 1-139
[39]  Liu J J, He M Q, Li Z M, Liu Y P, Li C Y, Zhang Q, Yang W Gand Yang A P. 2004. Oxygen and carbon isotopic geochemistry of Baiyangping silver-copper polymetallic ore concentration Area in Lanping basin of Yunnan province and its significance[J]. Mineral Deposits, 23(1): 1-10
[40]  Liu J M, Liu J J and Gu X X. 1997. Basin fluids and their related ore deposits[J]. Acta petrologica et Mineralogica, 16(4): 341-352
[41]  更多...
[42]  Liu W. 1990. Petrogenetie epochs and peculiarities of genetic types of granitoids in the Altai Mountains, Xinjiang Uygur Autonomous Region, China[J]. Geoteetoniea et Metallogenia, 14(1): 44-56
[43]  Lu H Z, Fan H W, Ni P, Ou G X, Shen K and Zhang W H. 2004. Fluid inclusions[M]. Beijing: Science Press. 1-485
[44]  Mao J W, Wang Y, Ding T, Chen Y, Wei J and Yin J. 2002 Dashuiguo tellurium deposit in Sichuan province, China: S, C, O and H isotope data and their implications on hydrothermal mineralization[J]. Resource Geology, 52: 15-23.
[45]  McCrea M. 1950. The isotopic chemistry of carbonates and a paleotemperature scale[J]. J. Chem. Phys., 18:849-857.
[46]  Ni P, Rankin A H and Zhou J. 2003. Fluid inclusion studies on earbonatite dyke and associated quartzite in Bayan Obo, Inner Mongolia, China[J]. Acta Petrologica Sinica, 19(2): 297-306
[47]  O\\'Neil J R, Clayton R N and Mayada T K. 1969. Oxygen isotope fractionation in divalent metal carbonates [J]. Chemistry Geophysics, 51 : 5547-5558.
[48]  Ohmoto H. 1986. Stable isotope geochemistry of ore deposits[J]. Reviews in Mineralogy, 16: 491-559.
[49]  Qiu Z X. 2003. Analysis on genesis and geological characteristics of Mengku iron deposit in fuyun county, Xinjiang autonomous region [J]. Contributions to Geology and Mineral Resources Research, 18 (Supp.) : 110-114
[50]  Rollinson H R. 1993. Using geochemical data: Evaluation, presentation, interpretation[M]. New York: Longman Scientific and Technical Limited. 1-343.
[51]  Zhang H X, Niu H C, Terada K, Yu X Y, Sato H and ho J. 2003. Zircon SHRIMP U-Pb dating on plagiogranite from Kuerti ophiolite in Altay, north Xinjiang[J]. China Sci. Bull., 48: 2231-2235.
[52]  Zhang J Z, Feng B H, Jin H J, Liu B, Luo Y P, Jin Z M, Zhu M Z and Chen S Z. 1987. The genetic relationship between marine volcanic rocks and iron deposit at Abagong-mengku area, Altay district, Xinjiang and ore-forming geological features[J]. Bulletin of Xi\\'an Institute Geology Mineral Resources, CAGS, 20:89-180
[53]  Zhang S Z and Ling Q C. 1993. Characteristics of skarn copper deposit: An example from Dongshizishan copper deposit in Tongling county, Anhui Province[J]. Earth Science-Journal of China University of Geosciences, 18(6) : 801-809.
[54]  Zhang Z F. 2003. Analysis of characteristics of typical Fe-deposit in Ahai region, Xinjiang and their genesis and potential[J]. Contributions to Geology and Mineral Resources Research, 18(Supp. ): 80-83
[55]  Zhao B, Zhao J S, Li Z L, Zhang C Z end Peng Z L. 2002. Characteristics of melt inclusions in skam minerals from Fe, Cu(Au)end Au (Cu)ore deposits in the region from Daye to Jiujieng[J]. Science in China (Series D), 46(5): 481-497.
[56]  Zhao J S, Zhao B, Zhang C Z and Wang R. 2003. Compositions of melt inclusions in garnet and pyroxene from skam deposit distributed in the area from Daye to Chengmenshan [J]. Geochimica, 32(6): 540-550
[57]  Zhao Y M, Lin W W, Bi C S, Li D X and Jiang C J. 1990. Skarn deposits in China[M]. Beijing: Geol. Pub. House. 1-354
[58]  Zhou G, Zhang ZC,Wang X, Lou SB, He Band Zhang X L. 2007. Zircon U-Pb SHRIMP and ^40Ar-^39Ar dating of the granitic mylonite in the Mayinebo fault belt of North Xinjiang and its geological significance[J]. Acta Geologica Sinica, 81(3): 359-369
[59]  Zhou T R, Cao H Z and Wu B Q. 1988. Orogenic and anorogenic granitoids of the Altay Mountains, Xinjiang and their discrination criteria[J]. Acta Geologica Sinica, 62(3): 228-234

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