Metamorphic evolution of the Lushan terrane in the Precambrian Taihua complex, Henan Province
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摘要: 太华变质杂岩（"太华群"）出露于华北克拉通中部造山带南缘，包括自西北向东南依次出露的华山、洛宁、鲁山、舞钢等四个出露区。鲁山地区太华变质杂岩中的斜长角闪岩类，变质演化历史记录得相对最为全面，其中普遍保留了三个阶段的变质矿物组合。第一阶段变质矿物组合（M1）为进变质组合，以石榴子石变斑晶中的包裹体矿物组合（石英+斜长石+角闪石±单斜辉石±钛铁矿）为代表，形成于约710℃/7.8kbar的条件下。第二阶段变质矿物组合（M2）为变质高峰期组合，以石榴子石变斑晶和基质矿物组合（角闪石+斜长石+石英±单斜辉石±钛铁矿）为代表，形成于约730~810℃/8.1~11.7kbar的条件下。第三阶段的矿物组合为退变质组合，以环绕石榴子石变斑晶发育的后成合晶矿物组合（石英+斜长石+角闪石±单斜辉石±钛铁矿）为代表，形成的温度与压力条件约为730~740℃/3.5~5.7kbar。这些斜长角闪岩类记录了顺时针变质作用P-T轨迹，其中包含近等温降压的退变质过程，其中变质峰期变质条件达高角闪岩相到麻粒岩相过渡区。二次离子质谱（SIMS）探针锆石U-Pb定年表明，变质锆石年龄介于1.93~1.87Ga之间。结合其他学者发表的资料，推测华北中部造山带的中段和南段似乎在~1.95Ga即已开始了俯冲-碰撞的造山过程，而且该造山过程几乎延续了150Myr之久。
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关键词:
- 华北克拉通中部造山带 /
- 鲁山 /
- 太华变质杂岩 /
- 斜长角闪岩 /
- P-T-t轨迹
Abstract: Formerly term as the Taihua Group, the Taihua metamorphic complex locates at the southern terminal of the Trans-North China Orogen and consists of the Mts Huashan, Luoning, Lushan and Wugang terranes from the northwest to the southeast. The garnet-bearing amphibolites from the Lushan terrane preserve three generations of metamorphic mineral assemblages, i.e., the prograde, peak and retrograde metamorphic assemblages. The prograde metamorphic assemblages (M1) are preserved as mineral inclusions in garnet porphyroblasts and are mainly composed of plagioclase, hornblende, quartz, with minor clinopyroxene, and were formed under metamorphic P-T conditions of 710℃/7.8kbar. The peak metamorphic assemblages (M2) are represented by the relatively coarse-grained garnet porphyroblasts and hornblende, plagioclase, quartz or clinopyroxene in the matrix, and were formed under metamorphic P-T conditions of 730~810℃/8.1~11.7kbar. The retrograde assemblages (M3) occur as symplectitic minerals surrounding the garnet porphyroblasts, which were formed under P-T conditions of 730~740℃/3.5~5.7kbar. Therefore, these amphibolites record clockwise P-T paths including isothermal decompression (ITD) process. In-situ high resolution SIMS U-Pb dating of metamorphic zircons and metamorphic rims of zircons suggest that the metamorphism took place during 1.93~1.87Ga. Combing previous dating retrieved from the middle to southern sections of the Trans-North China Orogen (TNCO), it is deciphered that the middle and southern sections of the TNCO was involved in a long-lived continental-continental collision, a period from ca. 1.95Ga to ca. ~1.80Ga ago.-
Key words:
- Amphibolites /
- Taihua Complex /
- PTt path /
- Lushan /
- TNCO
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[1] Bhadra S and Bhattacharya A. 2007. The barometer tremolite+tschermakite+2albite=2pargasite+8quartz: Constraints from experimental data at unit silica activity, with application to garnet-free natural assemblages. American Mineralogist, 92(4): 491-502
[2] Carswell DA and O'Brien PJ. 1993. Thermobarometry and geotectonic significance of high-pressure granulites: Examples from the Moldanubian zone of the Bohemian Massif in Lower Austria. Journal of Petrology, 34(3): 427-459
[3] Dale J, Holland T and Powell R. 2000. Hornblende-garnet-plagioclase thermobarometry: A natural assemblage calibration of the thermodynamics of hornblende. Contributions to Mineralogy and Petrology, 140(3): 353-362
[4] Eckert JO Jr, Newton RC and Kleppa OJ. 1991. The ΔH of reaction and recalibration of garnet-pyroxene-plagioclase-quartz geobarometers in the CMAS system by solution calorimetry. American Mineralogist, 76: 148-160
[5] Guo JH, Zhai MG, Li YG and Yan YH. 1998. Contrasting metamorphic PT paths of archaean high pressure granulites from the North China Craton: Metamorphism and tectonic significance. Acta Petrologica Sinica, 14(4): 430-448 (in Chinese with English abstract)
[6] Guo JH, Zhai MG, Li YG and Li JH. 1999. Metamorphism, PT paths and tectonic significance of garnet amphibolite and granulite from Hengshan, North China Craton. Scientia Geologica Sinica, 34(3): 311-325 (in Chinese with English abstract)
[7] Guo JH, O'Brien PJ and Zhai MG. 2002. High-pressure granulites in the Sanggan area, North China Craton: Metamorphic evolution, P-T paths and geotectonic significance. Journal of Metamorphic Geology, 20(8): 741-756
[8] Guo JH, Sun M, Chen FK and Zhai MG. 2005. Sm-Nd and SHRIMP U-Pb zircon geochronology of high-pressure granulites in the Sanggan area, North China Craton: Timing of Paleoproterozoic continental collision. Journal of Asian Earth Sciences, 24(5): 629-642
[9] He YH, Zhao GC, Sun M and Xia XP. 2009. SHRIMP and LA-ICP-MS zircon geochronology of the Xiong'er volcanic rocks: Implications for the Paleo-Mesoproterozoic evolution of the southern margin of the North China Craton. Precambrian Research, 168(3-4): 213-222
[10] Holdaway MJ and Mukhopadhyay B. 1993. A re-evaluation of the stability relations of andalusite: Thermochemical data and phase diagram for the alumino silicates. American Mineralogist, 78: 298-315
[11] Holland T and Blundy J. 1994. Non-ideal interactions in calcic amphiboles and their bearing on amphibole-plagioclase thermometry. Contributions to Mineralogy and Petrology, 116(4): 433-447
[12] Jiang ZS, Wang GD, Xiao LL, Diwu CR, Lu JS and Wu CM. 2011. Paleoproterozoic metamorphic P-T-t path and tectonic significance of the Luoning metamorphic complex at the southern terminal of the Trans-North China Orogen, Henan Province. Acta Petrologica Sinica, 27(12): 3701-3717 (in Chinese with English abstract)
[13] Leake BE, Woolley AR, Arps CES et al. 1997. Nomenclature of amphiboles: Report of the Subcommittee on Amphiboles of the International Mineralogical Association, Commission on New Minerals and Mineral Names. The Canadian Mineralogist, 35: 219-246
[14] Li XH, Liu Y, Li QL, Guo CH and Chamberlain KR. 2009. Precise determination of Phanerozoic zircon Pb/Pb age by multicollector SIMS without external standardization. Geochemistry, Geophysics, Geosystems 10(4): Q04010, doi:10.1029/cGC002400
[15] Liu SW. 1996. Study on the P-T path of granulites in Fuping area, Hebei Province. Geological Journal of China Universities, 2(1): 75-84 (in Chinese with English abstract)
[16] Liu SW, Shu GM, Pan YM and Dang QN. 2004. Electron-microprobe dating of monazite and metamorphic age of Wutai group, Wutai mountains. Geological Journal of Universities, 10(3): 356-363 (in Chinese with English abstract)
[17] Liu SW, Zhao GC, Wilde SA, Shu GM, Sun M, Li QG, Tian W and Zhang J. 2006. Th-U-Pb monazite geochronology of the Lüliang and Wutai complexes: Constraints on the tectonothermal evolution of the Trans-North China Orogen. Precambrian Research, 148(3-4): 205-224
[18] Lu JS, Wang GD, Wang H, Chen HX and Wu CM. 2013. Metamorphic P-T-t paths retrieved from the amphibolites, Lushan terrane, Henan Province and reappraisal of the Paleoproterozoic tectonic evolution of the Trans-North China Orogen. Precambrian Research, 238: 61-67
[19] Lu JS, Wang GD, Wang H, Chen HX and Wu CM. 2014a. Palaeoproterozoic metamorphic evolution and geochronology of the Wugang block, southeastern terminal of the Trans-North China Orogen. Precambrian Research, 251: 197-211
[20] Lu JS, Wang GD, Wang H, Chen HX, Peng T and Wu CM. 2014b. Zircon SIMS U-Pb geochronology of the Lushan terrane: Dating metamorphism of the southwestern terminal of the Palaeoproterozoic Trans-North China Orogen. Geological Magazine, doi:10.1017/S0016756814000430
[21] Ludwig KR. 2012. User's manual for Isoplot/Ex rev 3.75. Berkeley Geochronology Centre Special Publication, (5): 75
[22] McCarthy TC and Patio Douce AE. 1998. Empirical calibration of the silica-Ca-tschermak's-anorthite (SCAn) geobarometer. Journal of Metamorphic Geology, 16(5): 675-686
[23] Mei HL. 1994. Metamorphic P-T-t paths and tectonic evolution of Early Proterozoic rocks from the Zhongtiao Mountains, southern Shanxi. Geological Review, 40(1): 36-47 (in Chinese with English abstract)
[24] Peng T, Wang H, Chen HX, Meng J, Lu JS, Wang GD and Wu CM. 2014. Preliminary report on the metamorphic evolution of the Guanyingou amphibolites, Dunhuang metamorphic complex, NW China. Acta Petrologica Sinica, 30(2): 503-511 (in Chinese with English abstract)
[25] Qian JH, Wei CJ, Zhou XW and Zhang YH. 2013. Metamorphic P-T paths and new zircon U-Pb age data for garnet-mica schist from the Wutai Group, North China Craton. Precambrian Research, 233: 282-296
[26] Ravna K. 2000. The garnet-clinopyroxene Fe2+-Mg geothermometer: An updated calibration. Journal of Metamorphic Geology, 18(2): 211-219
[27] Spear FS. 1995. Metamorphic Phase Equilibria and Pressure-temperature-time-paths. Washington: Mineralogical Society of America
[28] Trap P, Faure M, Lin W and Meffre S. 2009. The Lüliang Massif: A key area for the understanding of the Palaeoproterozoic Trans-North China Belt, North China Craton. Geological Society of London, Special Publications, 323(1): 99-125
[29] Wan YS, Wilde SA, Liu DY, Yang CX, Song B and Yin XY. 2006a. Further evidence for ~1.85Ga metamorphism in the Central Zone of the North China Craton: SHRIMP U-Pb dating of zircon from metamorphic rocks in the Lushan area, Henan Province. Gondwana Research, 9(1-2): 189-197
[30] Wan YS, Song B, Liu DY, Wilde SA, Wu JS, Shi YR, Yin XY and Zhou HY. 2006b. SHRIMP U-Pb zircon geochronology of Palaeoproterozoic metasedimentary rocks in the North China Craton: Evidence for a major Late Palaeoproterozoic tectonothermal event. Precambrian Research, 149(3-4): 249-271
[31] Wan YS, Xu ZY, Dong CY et al. 2013. Episodic Palaeoproterozoic (~2.45, ~1.95 and ~1.85Ga) mafic magmatism and associated high temperature metamorphism in the Daqingshan area, North China Craton: SHRIMP zircon U-Pb dating and whole-rock geochemistry. Precambrian Research, 224: 71-93
[32] Wang GD, Wang H, Cheng HX, Lu JS, Xiao LL and Wu CM. 2012. U-Pb dating of zircons from metamorphic rocks of the Taihua metamorphic complex, Mt. Huashan, southern margin of the Trans-North China Orogen. Acta Geologica Sinica, 86(9): 1541-1551 (in Chinese with English abstract)
[33] Wang GD, Lu JS, Wang H, Chen HX, Xiao LL, Diwu CR, Ji JQ and Wu CM. 2013. LA-ICP-MS U-Pb dating of zircons and 40Ar/39Ar dating of amphiboles of the Taihua Metamorphic Complex, Mt. Huashan, southern terminal of the Palaeoprotorozoic Trans-North China Orogen. Acta Petrologica Sinica, 29(9): 3099-3114 (in Chinese with English abstract)
[34] Wang GD, Wang H, Chen HX, Lu JS and Wu CM. 2014. Metamorphic evolution and zircon U-Pb geochronology of the Mts. Huashan amphibolites: Insights into the Palaeoproterozoic amalgamation of the North China Craton. Precambrian Research, 245: 100-114
[35] Wang KY, Zhou SP and Hao J. 1996. The metamorphism and significance of kyanite-bearing assemblages from the original Jingangku formation of Wutaishan area. Acta Petrologica Sinica, 12(1): 88-98 (in Chinese with English abstract)
[36] Wang RM, Chen ZZ and Chen F. 1991. Grey tonalitic gneiss and high-pressure granulite inclusions in Hengshan, Shanxi Province, and their geological significance. Acta Petrologica Sinica, 7(4): 36-45 (in Chinese with English abstract)
[37] Whitney DL and Evans BW. 2010. Abbreviations for names of rock-forming minerals. American Mineralogist, 95(1): 185-187
[38] Xiao LL, Wu CM, Zhao GC, Guo JH and Ren LD. 2011. Metamorphic P-T paths of the Zanhuang amphibolites and metapelites: Constraints on the tectonic evolution of the Paleoproterozoic Trans-North China Orogen. International Journal of Earth Sciences, 100(4): 717-739
[39] Xiao LL, Jiang ZS, Wang GD, Wan YS, Wang T and Wu CM. 2011. Metamorphic reaction textures and metamorphic P-T-t loops of the Precambrian Zanhuang metamorphic complex, Hebei, North China. Acta Petrologica Sinica, 27(4): 980-1002 (in Chinese with English abstract)
[40] Xiao LL, Wang GD, Wang H, Jiang ZS, Diwu CR and Wu CM. 2013. Zircon U-Pb geochronology of the Zanhuang metamorphic complex: Reappraisal of the Palaeoproterozoic amalgamation of the Trans-North China Orogen. Geological Magazine, 150(4): 756-764
[41] Xu XS, Griffin WL, Ma X, O'Reilly SY, He ZY and Zhang CL. 2009. The Taihua group on the southern margin of the North China craton: Further insights from U-Pb ages and Hf isotope compositions of zircons. Mineralogy and Petrology, 97(1-2): 43-59
[42] Yin CQ, Zhao GC, Guo JH, Sun M, Xia XP, Zhou XW and Liu CH. 2011. U-Pb and Hf isotopic study of zircons of the Helanshan Complex: Constrains on the evolution of the Khondalite Belt in the Western Block of the North China Craton. Lithos, 122(1-2): 25-38
[43] Yu LJ, Wang KY, Wang ZH, Li JL and Fang AM. 2001. Early Proterozoic high-pressure metamorphism in the Wutaishan. Acta Petrologica Sinica, 17(2): 301-313 (in Chinese with English abstract)
[44] Zhai MG, Guo JH, Yan YH, Li YG and Han XL. 1993. Discovery of high-pressure basic granulite terrain in North China Archaean Craton and preliminary study. Science China Chemistry, 36(11): 1402-1408
[45] Zhao GC, Wilde SA, Cawood PA and Lu LZ. 1998. Thermal evolution of Archean basement rocks from the eastern part of the North China Craton and its bearing on tectonic setting. International Geology Review, 40(8): 706-721
[46] Zhao GC, Cawood PA and Lu LZ. 1999. Petrology and P-T history of the Wutai amphibolites: Implications for tectonic evolution of the Wutai Complex, China. Precambrian Research, 93(2-3): 181-199
[47] Zhao GC, Wilde SA, Cawood PA and Lu LZ. 2000. Petrology and P-T path of the Fuping mafic granulites: Implications for tectonic evolution of the central zone of the North China Craton. Journal of Metamorphic Geology, 18(4): 375-391
[48] Zhao GC, Cawood PA, Wilde SA and Lu LZ. 2001. High-pressure granulites (retrograded eclogites) from the Hengshan Complex, North China Craton: Petrology and tectonic implications. Journal of Petrology, 42(6): 1141-1170
[49] Zhao GC, Wilde SA, Cawood PA and Sun M. 2002. SHRIMP U-Pb zircon ages of the Fuping Complex: Implications for Late Archean to Paleoproterozoic accretion and assembly of the North China Craton. American Journal of Science, 302(3): 191-226
[50] Zhao GC, Sun M, Wilde SA and Li SZ. 2005. Late Archean to Paleoproterozoic evolution of the North China Craton: Key issues revisited. Precambrian Research, 136(2): 177-202
[51] Zhao GC, Wilde SA, Sun M, Li SZ, Li XP and Zhang J. 2008. SHRIMP U-Pb zircon ages of granitoid rocks in the Lüliang Complex: Implications for the accretion and evolution of the Trans-North China Orogen. Precambrian Research, 160(3-4): 213-226
[52] Zhao GC, Yin CQ, Guo JH, Sun M, Li SZ, Li XP, Wu CM and Liu CH. 2010. Metamorphism of the Lüliang amphibolite: Implications for the tectonic evolution of the North China Craton. American Journal of Science, 310(10): 1480-1502
[53] Zhao GC, Cawood PA, Li SZ, Wilde SA, Sun M, Zhang J, He YH and Yin CQ. 2012. Amalgamation of the North China Craton: Key issues and discussion. Precambrian Research, 222-223: 55-76
[54] Zhao GC and Zhai MG. 2013. Lithotectonic elements of Precambrian basement in the North China Craton: Review and tectonic implications. Gondwana Research, 23(4): 1207-1240
[55] 郭敬辉, 翟明国, 李永刚, 阎月华. 1998. 华北太古宙高压基性麻粒岩的两类PT轨迹及其构造意义: 矿物化学和变质作用研究. 岩石学报, 14(4): 430-448
[56] 郭敬辉,翟明国,李永刚,李江海. 1999. 恒山西段石榴石角闪岩和麻粒岩的变质作用、PT轨迹及其构造意义. 地质科学,34(3): 311-325
[57] 蒋宗胜, 王国栋, 肖玲玲, 第五春荣, 卢俊生, 吴春明. 2011. 河南洛宁太华变质杂岩区早元古代变质作用P-T-t轨迹及其大地构造意义. 岩石学报, 27(12): 3701-3717
[58] 刘树文. 1996. 阜平地区麻粒岩的P-T路径研究. 高校地质学报, 2(1): 75-84
[59] 刘树文, 舒桂明, 潘元明, 党青宁. 2004. 电子探针独居石定年法及五台群的变质时代. 高校地质学报, 10(3): 356-363
[60] 梅华林. 1994. 中条山早元古代变质岩石的PTt轨迹和构造演化. 地质论评, 40(1): 36-47
[61] 彭涛, 王浩, 陈泓旭, 孟洁, 卢俊生, 王国栋, 吴春明. 2014. 甘肃敦煌观音沟地区变质作用初步研究. 岩石学报, 30(2): 503-511
[62] 王国栋, 王浩, 陈泓旭, 卢俊生, 肖玲玲, 吴春明. 2012. 华北中部造山带南缘华山地区太华变质杂岩中锆石U-Pb定年. 地质学报, 86(9): 1541-1551
[63] 王国栋, 卢俊生, 王浩, 陈泓旭, 肖玲玲, 第五春荣, 季建清, 吴春明. 2013. 华山太华变质杂岩中LA-ICP-MS锆石U-Pb定年及角闪石40Ar/39Ar定年. 岩石学报, 29(9): 3099-3114
[64] 王凯怡, 周少平, 郝杰. 1996. 五台山地区原金刚库组中含蓝晶石组合的变质作用及其意义. 岩石学报, 12(1): 88-98
[65] 王仁民, 陈珍珍, 陈飞. 1991. 恒山灰色片麻岩和高压麻粒岩包体及其地质意义. 岩石学报, 7(4): 36-45
[66] 肖玲玲, 蒋宗胜, 王国栋, 万渝生, 王涛, 吴春明. 2011. 赞皇前寒武纪变质杂岩区变质反应结构与变质作用P-T-t轨迹. 岩石学报, 27(4): 980-1002
[67] 俞良军, 王凯怡, 王志洪, 李继亮, 方爱民. 2001. 五台山早元古代高压变质作用研究. 岩石学报, 17(2): 301-313
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