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科学通报  2012 

西南天山阿坦塔义一带片岩和榴辉岩中的柯石英

, PP. 683-688

Keywords: 西南天山造山带,柯石英包体,超高压变质作用

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Abstract:

柯石英是超高压变质作用发生的标志矿物.西南天山造山带阿坦塔义地区的高压变质岩中迄今未发现柯石英,其变质峰期条件颇具争议.对这一地区的主体岩石类型——片岩和榴辉岩开展了详细的岩相学和显微拉曼光谱分析,识别出阿坦塔义河沿岸3处露头的岩石含有柯石英.含柯石英的片岩主要由钠长石、石榴石、钠钙质角闪石、石英和白云母构成;含柯石英的榴辉岩主要由绿辉石和石榴石构成.柯石英的发现表明这一地区的榴辉岩及其围岩整体经历了超高压变质作用,西南天山超高压地质体的南北宽可达10km,其东西长可达60~80km.

References

[1]  Wei C J, Wang W, Clarke G L, et al. Metamorphism of high/ultrahigh-pressure pelitic-felsic schist in the South Tianshan orogen, NW China: Phase equilibria and P-T path. J Petrol, 2009, 50: 1973-1991
[2]  Lü Z, Zhang L, Du J, et al. Petrology of coesite-bearing eclogite from Habutengsu Valley, western Tianshan, NW China and its tectonometamorphic implication. J Metamorph Geol, 2009, 27: 773-787
[3]  Zhang L F, Ellis D J, Jiang W B. Ultrahigh-pressure metamorphism in western Tianshan, China: Part I. Evidence from inclusions of coesite pseudomorphs in garnet and from quartz exsolution lamellae in omphacite in eclogites. Am Mineral, 2002, 87: 853-860
[4]  Zhang L F, Ellis D J, Williams S, et al. Ultra-high pressure metamorphism in western Tianshan, China: Part II. Evidence from magnesite in eclogite. Am Mineral, 2002, 87: 861-866
[5]  Klemd R. Ultrahigh-pressure metamorphism in eclogites from the western Tianshan high-pressure belt (Xinjiang, western China) — Comment. Am Mineral, 2003, 88: 1153-1156
[6]  Zhang L F, Ellis D, Williams S, et al. Ultrahigh-pressure metamorphism in eclogites from the western Tianshan, China—Reply. Am Mineral,2003, 88: 1157-1160
[7]  Zhang L F, Song S G, Liou J G, et al. Relict coesite exsolution in omphacite from Western Tianshan eclogites, China. Am Mineral, 2005, 90:181-186
[8]  高俊. 西南天山榴辉岩的发现及其大地构造意义[J].科学通报.1997, 42:737-740??浏览
[9]  Gao J, Klemd R, Zhang L, et al. P-T path of high-pressure/low-temperature rocks and tectonic implications in the western Tianshan Mountains, NW China. J Metamorph Geol, 1999, 17: 621-636
[10]  杨鑫, 张立飞. 新疆西天山含柯石英、电气石石榴多硅白云母片岩的岩石学研究. 全国岩石学与地球动力学研讨会摘要集, 2010
[11]  Zhang R Y, Liou J G, Ernst W G. The Dabie-Sulu continental collision zone: A comprehensive review. Gondwana Res, 2009, 16: 1-26
[12]  Liu J B, Ye K, Cong B L, et al. Coesite inclusions in zircon from gneisses identified by laser Raman microspectrometer in ultra-high pressure zone of Dabie Mountains, China. Chin Sci Bull, 2001, 46: 1912-1916
[13]  Ye K, Yao Y P, Katayama I, et al. Large areal extent of ultrahigh-pressure metamorphism in the Sulu ultrahigh-pressure terrane of East China: New implications from coesite and omphacite inclusions in zircon of granitic gneiss. Lithos, 2000, 52: 157-164
[14]  Liu F L, Liou J G. Zircon as the best mineral for P-T-time history of UHP metamorphism: A review on mineral inclusions and U-Pb SHRIMP ages of zircons from the Dabie-Sulu UHP rocks. J Asian Earth Sci, 2011, 40: 1-39
[15]  Zhang L F, Ai Y L, Li X P, et al. Triassic collision of western Tianshan orogenic belt, China: Evidence from SHRIMP U-Pb dating of zircon from HP/UHP eclogitic rocks. Lithos, 2007, 96: 266-280
[16]  Su W, Gao J, Klemd R, et al. U-Pb zircon geochronology of Tianshan eclogites in NW China: Implication for the collision between the Yili and Tarim blocks of the southwestern Altaids. Eur J Mineral, 2010, 22: 473-478
[17]  艾永亮. 新疆西南天山超高压榴辉岩及蓝片岩地球化学研究及其大地构造意义. 博士学位论文. 北京: 北京大学.[J]..2005,:-
[18]  Wain A, Waters D, Jephcoat A, et al. The high-pressure to ultrahigh-pressure eclogite transition in the Western Gneiss Region, Norway. Eur J Mineral, 2000, 12: 667-687
[19]  Wendt A S, Darco P, Goffe B, et al. Radial cracks around alpha-quartz inclusions in Almandine — Constraints on the metamorphic history of the Oman mountains. Earth Planet Sci Lett, 1993, 114: 449-461
[20]  Mosenfelder J L, Schertl H P, Smyth J R, et al. Factors in the preservation of coesite: The importance of fluid infiltration. Am Mineral, 2005,90: 779-789
[21]  John T, Klemd R, Klemme S, et al. Nb-Ta fractionation by partial melting at the titanite-rutile transition. Contrib Mineral Petrol, 2011, 161:35-45
[22]  吕增. 中国西南天山哈布腾苏一带的高压-超高压变质作用研究. 博士学位论文. 北京: 北京大学, 2009. 19-52
[23]  van der Straaten F, Schenk V, John T, et al. Blueschist-facies rehydration of eclogites (Tian Shan, NW-China): Implications for fluid-rock interaction in the subduction channel. Chem Geol, 2008, 255: 195-219
[24]  Lü Z, Zhang L F, Du J X, et al. Petrology of HP veins in the UHP eclogites of western Tianshan, China: Fluid processes and element mobility during the exhumation in the cold subduction zone, Lithos, 2011, doi: 10.1016/j.lithos.2011.10.011
[25]  Carswell D A, Compagnoni R. Introduction with review of the definition, distribution and geotectonic significance of ultrahigh pressure metamorphism. EMU Notes Mineral, 2003, 5: 3-9
[26]  Lü Z, Zhang L F, Du J X, et al. Coesite inclusions in garnet from eclogitic rocks in western Tianshan, northwest China: Convincing proof of UHP metamorphism. Am Mineral, 2008, 93: 1845-1850

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