滇西潞西地区晚寒武世岩浆构造热事件的新认识

doi:10.13686/j.cnki.dzyzy.2021.05.003

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Abstract A large number of Early Paleozoic intrusive rocks represented by Pinghe pluton are developed on the western margin of Baoshan block-an important part of Gondwana. However, due to the lack of field survey data, its geological significance has long been disputed. Based on the 1:50 000 regional geological survey, the detailed field contact relationship has confirmed the existence of two stages of intrusive rocks in Pinghe pluton, and sedimentation, chronology and petrogeochemistry have endowed it with new geological implication. The early intrusive rocks in Luxi area are mainly monzogranites, with the LA-ICP-MS zircon U-Pb age of 488.3±3.9 Ma. The major and trace element analysis results show that the rock belongs to high-temperature biotite-rich cordierite-bearing peraluminous granite of high-K calc-alkali series, with REE characteristics of medium negative Eu anomaly, classified as the Nanling type of granite. Combined with sedimentation and regional geological tectonic background, it is considered that the intrusive rock is the product of upper crust partial melting after the collision of Baoshan block and Tengchong block in the Late Cambrian.

Key words： Baoshan block Late Cambrian post-collision monzogranite U-Pb zircon age western Yunnan

Received: 20 April 2020

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P579

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	SONG Dong-hu
	LIU Bing
	LU Yong-yan
	LIU Xiao-wei
	BAO Jia-feng
	WANG Yan
	LIU Jun-ping
	SUN Bai-dong
	TIAN Su-mei

Cite this article:

SONG Dong-hu,LIU Bing,LU Yong-yan等. THE LATE CAMBRIAN MAGMATIC TECTONIC THERMAL EVENTS IN LUXI AREA, WESTERN YUNNAN: A New Understanding[J]. GEOLOGY AND RESOURCES, 2021, 30(5): 533-543.

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http://manu25.magtech.com.cn/Jweb_dzyzy/EN/10.13686/j.cnki.dzyzy.2021.05.003 OR http://manu25.magtech.com.cn/Jweb_dzyzy/EN/Y2021/V30/I5/533

[1]	Baig M S, Lawrence R D, Snee L W. Evidence for late Precambrian to early Cambrian orogeny in northwest Himalaya, Pakistan[J]. Geological Magazine, 1988, 125(1):83-86.
[2]	胡培远, 李才, 苏犁, 等. 青藏高原羌塘中部蜈蚣山花岗片麻岩锆石U-Pb定年——泛非与印支事件的年代学记录[J]. 中国地质, 2010, 37(4):1050-1061. Hu P Y, Li C, Su L, et al. Zircon U-Pb dating of granitic gneiss in Wugong Mountain area, central Qiangtang, Qinghai-Tibet Plateau:Age records of Pan-African movement and Indo-China movement[J]. Geology in China, 2010, 37(4):1050-1061.
[3]	林仕良, 丛峰, 高永娟, 等. 滇西腾冲地块东南缘高黎贡山群片麻岩LA-ICP-MS锆石U-Pb年龄及其地质意义[J]. 地质通报, 2012, 31(2):258-263. Lin S L, Cong F, Gao Y J, et al. LA-ICP-MS zircon U-Pb age of gneiss from Gaoligong Mountain Group on the southeastern margin of Tengchong block in western Yunnan Province[J]. Geological Bulletin of China, 2012, 31(2/3):258-263.
[4]	Pan G T, Wang L Q, Li R S, et al. Tectonic evolution of the Qinghai-Tibet Plateau[J]. Journal of Asian Earth Sciences, 2012, 53:3-14.
[5]	Ding H X, Zhang Z M, Dong X, et al. Cambrian ultrapotassic rhyolites from the Lhasa terrane, south Tibet:Evidence for Andean-type magmatism along the northern active margin of Gondwana[J]. Gondwana Research, 2015, 27(4):1616-1629.
[6]	Cawood P A, Johnson M R W, Nemchin A A. Early Palaeozoic orogenesis along the Indian margin of Gondwana:Tectonic response to Gondwana assembly[J]. Earth and Planetary Science Letters, 2007, 255(1/2):70-84.
[7]	董美玲, 董国臣, 莫宣学,等. 滇西保山地块早古生代花岗岩类的年代学、地球化学及意义[J]. 岩石学报, 2012, 28(5):1453-1464. Dong M L, Dong G C, Mo X X, et al. Geochronology and geochemistry of the Early Palaeozoic granitoids in Baoshan block, western Yunnan and their implications[J]. Acta Petrologica Sinica, 2012, 28(5):1453-1464.
[8]	刘琦胜, 叶培盛, 吴中海. 滇西高黎贡山南段奥陶纪花岗岩SHRIMP锆石U-Pb测年和地球化学特征[J]. 地质通报, 2012, 31(2):250-257. Liu Q S, Ye P S, Wu Z H. SHRIMP zircon U-Pb dating and petrogeochemistry of Ordovician granite bodies in the southern segment of Gaoligong Mountain, western Yunnan Province[J]. Geological Bulletin of China, 2012, 31(2):250-257.
[9]	刘一鸣. 青藏高原羌南一保山板块550~450 Ma岩浆事件——兼论冈瓦纳大陆北缘基底构造演化[D]. 长春:吉林大学, 2017:1-180. Liu Y M. Magmatism at 550-450 Ma within the South Qiangtang-Baoshan Plate of the Tibetan Plateau:Constraints on the tectonic evolution of the basement of the northern Gondwana margin[D]. Changchun:Jilin University, 2017:1-180.
[10]	李文昌, 潘桂堂, 侯增谦,等. 西南"三江"多岛弧盆-碰撞造山成矿理论与勘查技术[M]. 北京:地质出版社, 2010:1-490. Li W C, Pan G T, Hou Z Q, et al. Archipelagic basin, forming collision theory and prospecting techniques along the Nujiang-Lancangjiang-Jinshajiang area in Southwestern China[M]. Beijing:Geological Publishing House, 2010:1-490. (in Chinese)
[11]	李再会, 林仕良, 丛峰, 等. 滇西腾冲-保山地块早古生代岩浆作用和地球化学:岩石成因和构造背景[J]. 矿物岩石地球化学通报, 2013, 32(6):689-703. Li Z H, Lin S L, Cong F, et al. Magmatism and geochemistry of the Early Paleozoic of the Tengchong-baoshan block, Western Yunnan, China:Implications for petrogenesis and tectonics[J]. Bulletin of Mineralogy, Petrology and Geochemistry, 2013, 32(6):689-703.
[12]	蔡志慧, 许志琴, 段向东, 等. 青藏高原东南缘滇西早古生代早期造山事件[J]. 岩石学报, 2013, 29(6):2123-2140. Cai Z H, Xu Z Q, Duan X D, et al. Early stage of Early Paleozoic orogenic event in western Yunnan Province, southeastern margin of Tibet Plateau[J]. Acta Petrologica Sinica, 2013, 29(6):2123-2140.
[13]	邓军, 杨立强, 王长明. 三江特提斯复合造山与成矿作用研究进展[J]. 岩石学报, 2011, 27(9):2501-2509. Deng J, Yang L Q, Wang C M. Research advances of superimposed orogenesis and metallogenesis in the Sanjiang Tethys[J]. Acta Petrologica Sinica, 2011, 27(9):2501-2509.
[14]	Deng J, Wang Q F, Li G J, et al. Cenozoic tectono-magmatic and metallogenic processes in the Sanjiang region, Southwestern China[J]. Earth-Science Reviews, 2014, 138:268-299.
[15]	李维科, 王晓林, 刘兵, 等. 滇西保山地块南部公养河群研究新进展[J]. 地质通报, 2018, 37(11):1970-1979. Li W K, Wang X L, Liu B, et al. New progress in the study of Gongyanghe Group in southern Baoshan block, western Yunnan Province[J]. Geological Bulletin of China, 2018, 37(11):1970-1979.
[16]	金世昌, 庄凤良. 龙陵-潞西地区花岗岩矿物中熔融包裹体研究[J]. 昆明工学院学报, 1988, 13(5):1-15. Jin S C, Zhuang F L. Study of melting inclusion in granites at Longling in Luxi area[J]. Journal of Kunming Institute of Technology, 1988, 13(5):1-15.
[17]	陈吉琛. 滇西花岗岩类时代划分及同位素年龄值选用的讨论[J]. 云南地质, 1987, 6(2):101-113. Chen J C. Discussion on the age division and the selects of isotopic age determination for granitic rock in western Yunnan[J]. Yunnan Geology, 1987, 6(2):101-113.
[18]	Chen F K, Li X H, Wang X L, et al. Zircon age and Nd-Hf isotopic composition of the Yunnan Tethyan belt, Southwestern China[J]. International Journal of Earth Sciences, 2007, 96(6):1179-1194.
[19]	郝家栩, 邹立志, 陈刚, 等. 滇西施甸地区卧牛寺组火山岩的地质时代及喷发环境[J]. 中国地质调查, 2015, 2(7):40-44. Hao J X, Zou L Z, Chen G, et al. Age and eruption environment of volcanic rock from Woniusi Formation in Shidian, Western Yunnan Province[J]. Geological Survey of China, 2015, 2(7):40-44.
[20]	禹丽, 李龚健, 王庆飞, 等. 保山地块北部晚白垩世岩浆岩成因及其构造指示:全岩地球化学、锆石U-Pb年代学和Hf同位素制约[J]. 岩石学报, 2014, 30(9):2709-2724. Yu L, Li G J, Wang Q F, et al. Petrogenesis and tectonic significance of the Late Cretaceous magmatism in the northern part of the Baoshan block:Constraints from bulk geochemistry zircon U-Pb geochronology and Hf isotopic compositions[J]. Acta Petrologica Sinica, 2014, 30(9):2709-2724.
[21]	崔晓琳, 邓军, 张铎, 等. 滇西腾冲地块高黎贡山群早志留世变质花岗岩体的年代学、地球化学特征及意义[J]. 岩石学报, 2017, 33(7):2085-2098. Cui X L, Deng J, Zhang D, et al. Chronological and geochemical characteristics of the Early Silurian metamorphic granites in Tengchong Block, western Yunnan and their implications[J]. Acta Petrologica Sinica, 2017, 33(7):2085-2098.
[22]	Liu S, Hu R Z, Gao S, et al. U-Pb zircon, geochemical and Sr-Nd-Hf isotopic constraints on the age and origin of Early Palaeozoic I-type granite from the Tengchong-Baoshan block, western Yunnan Province, SW China[J]. Journal of Asian Earth Sciences, 2009, 36(2/3):168-182.
[23]	Liu Y S, Hu Z C, Gao S, et al. In situ analysis of major and trace elements of anhydrous minerals by LA-ICP-MS without applying an internal standard[J]. Chemical Geology, 2008, 257(1/2):34-43.
[24]	周剑雄, 陈振宇. 电子探针下锆石阴极发光的研究[M]. 成都:电子科技大学出版社, 2007:1-104. Zhou J X, Chen Z Y. Study on cathodoluminescence of zircon by electron probe[M]. Chengdu:University of Electronic Science and Technology of China Press, 2007:1-104. (in Chinese)
[25]	Black L P, Kamo S L, Williams I S, et al. The application of SHRIMP to Phanerozoic geochronology:A critical appraisal of four zircon standards[J]. Chemical Geology, 2003, 200(1/2):171-188.
[26]	Sylvester P J. Post-collisional strongly peraluminous granites[J]. Lithos, 1998, 45(1/4):29-44.
[27]	葛文春, 李献华, 李正祥, 等. 桂北新元古代两类过铝花岗岩的地球化学研究[J]. 地球化学, 2001, 30(1):24-34. Ge W C, Li X H, Li Z X, et al. Geochemical studies on two types of Neoproterozoic peraluminous granitoids in northern Guangxi[J]. Geochimica, 2001, 30(1):24-34.
[28]	林广春, 马昌前. 过铝花岗岩的成因类型与构造环境研究综述[J]. 华南地质与矿产, 2003(1):65-70. Lin G C, Ma C Q. Genesis of peraluminous granitoids and their tectonic settings[J]. Geology and Mineral Resources of South China, 2003(1):65-70.
[29]	廖忠礼, 莫宣学, 潘桂堂, 等. 过铝花岗岩的研究动向和进展——兼论西藏过铝花岗岩[J]. 沉积与特提斯地质, 2004, 24(2):22-29. Liao Z L, Mo X X, Pan G T, et al. Peraluminous granites:Insights from recent developments with discussions on the peraluminous granites in Xizang[J]. Sedimentary Geology and Tethyan Geology, 2004, 24(2):22-29.
[30]	钟长汀, 邓晋福, 武永平, 等. 华北克拉通北缘中段古元古代强过铝质花岗岩地球化学特征及其构造意义[J]. 地质通报, 2006, 25(3):389-397. Zhong C T, Deng J F, Wu Y P, et al. Geochemical characteristics and tectonic significations of Paleoproterozoic strongly peraluminous granitoids in the central segment of the northern margin of the North China craton[J]. Geological Bulletin of China, 2006, 25(3):389-397.
[31]	张旗, 王焰, 李承东, 等. 花岗岩的Sr-Yb分类及其地质意义[J]. 岩石学报, 2006, 22(9):2249-2269. Zhang Q, Wang Y, Li C D, et al. Granite classification on the basis of Sr and Yb contents and its implications[J]. Acta Petrologica Sinica, 2006, 22(9):2249-2269.
[32]	张旗, 潘国强, 李承东, 等. 花岗岩构造环境问题:关于花岗岩研究的思考之三[J]. 岩石学报, 2007, 23(11):2683-2698. Zhang Q, Pan G Q, Li C D, et al. Are discrimination diagrams always indicative of correct tectonic settings of granites? Some crucial questions on granite study (3)[J]. Acta Petrologica Sinica, 2007, 23(11):2683-2698.
[33]	刘振声, 王洁民. 青藏高原南部花岗岩地质地球化学[M]. 成都:四川科技出版社, 1994:1-133. Liu Z S, Wang J M. Geological and geochemical features of granite in the south of Qinghai-Tibet Plateau[M]. Chengdu:Sichuan Science and Technology Publishing House, 1994:1-133. (in Chinese)
[34]	吕伯西, 王增, 张能德, 等. 三江地区花岗岩类及其成矿专属性[M]. 北京:地质出版社, 1993:1-328. Lv B X, Wang Z, Zhang N D, et al. Granitoids in the Sanjiang region (Nujiang-Lancangjiang-Jinshajiang Region) and their metallogenic specialization[M]. Beijing:Geological Publishing House, 1993:1-328. (in Chinese)
[35]	Li G J, Wang Q F, Huang Y H, et al. Petrogenesis of Middle Ordovician peraluminous granites in the Baoshan block:Implications for the Early Paleozoic tectonic evolution along east Gondwana[J]. Lithos, 2016, 245:76-92.
[36]	Hu P Y, Zhai Q G, Jahn B M, et al. Early Ordovician granites from the South Qiangtang terrane, northern Tibet:Implications for the Early Paleozoic tectonic evolution along the Gondwanan proto-Tethyan margin[J]. Lithos, 2015, 220-223:318-338.
[37]	Pearce J A, Harris N B W, Tindle A G. Trace element discrimination diagrams for the tectonic interpretation of granitic Rocks[J]. Journal of Petrology, 1984, 25(4):956-983.
[38]	Bonin B. A-type granites and related rocks:Evolution of a concept, problems and prospects[J]. Lithos, 2007, 97(1/2):1-29.