云南瑶山群新元古代变基性岩的识别及其地质意义

刘昊茹; 蔡永丰; 赵锴; 华洁文; 周云

doi:10.3799/dqkx.2022.048

Volume 48 Issue 12

Dec. 2023

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Article Navigation > Earth Science > 2023 > 48(12): 4495-4507

Liu Haoru, Cai Yongfeng, Zhao Kai, Hua Jiewen, Zhou Yun, 2023. Identification of Neoproterozoic Metabasic Rocks in Yaoshan Group, Yunnan Province and Its Geological Implications. Earth Science, 48(12): 4495-4507. doi: 10.3799/dqkx.2022.048

Citation:

Liu Haoru, Cai Yongfeng, Zhao Kai, Hua Jiewen, Zhou Yun, 2023. Identification of Neoproterozoic Metabasic Rocks in Yaoshan Group, Yunnan Province and Its Geological Implications. Earth Science, 48(12): 4495-4507. doi: 10.3799/dqkx.2022.048

Citation:

Liu Haoru, Cai Yongfeng, Zhao Kai, Hua Jiewen, Zhou Yun, 2023. Identification of Neoproterozoic Metabasic Rocks in Yaoshan Group, Yunnan Province and Its Geological Implications. Earth Science, 48(12): 4495-4507. doi: 10.3799/dqkx.2022.048

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Identification of Neoproterozoic Metabasic Rocks in Yaoshan Group, Yunnan Province and Its Geological Implications

doi: 10.3799/dqkx.2022.048

Liu Haoru^{1
,
,},
Cai Yongfeng^{1, 2
,
,
,},
Zhao Kai¹,
Hua Jiewen¹,
Zhou Yun¹

1.
Guangxi Key Laboratory of Hidden Metallic Ore Deposits Exploration, Guilin University of Technology, Guilin 541004, China
2.
Collaborative Innovation Center for Exploration of Nonferrous Metal Deposits and Efficient Utilization of Resources in Guangxi, Guilin University of Technology, Guilin 541004, China

Received Date: 2022-01-05
Available Online: 2024-01-03
Publish Date: 2023-12-25

Abstract

Abstract

Numerous Neoproterozoic igneous rocks were identified along the northwestern and southeastern Yangtze block, whereas the synchronous mafic rocks have been poorly reported along the southwestern Yangtze block so far. The Yaoshan Group, located at the southwestern Yangtze block, preserves small amounts of matabasic rocks and metagabbro which occurred as lens, layers and fragments. Their formation timing, petrogenesis and dynamic implication are still unclear. In this study, it presents zircon U-Pb geochronological, geochemical and petrological data for the metabasic rocks in the Yaoshan Group. The data show that the metabasic rocks have zircon U-Pb ages of 766±3 Ma and 771±4 Ma, for the first time to identify Neoproterozoic metabasic rocks in the Yaoshan Group. Geochemical data suggest that the metabasic rocks have SiO₂ of 48.41%-49.00% and Fe₂O₃^T, MgO range in 10.30%-10.48% and 10.05%-10.15%, respectively. They have relative high Mg-number (69.3-69.5). They are characterized by enrichment in LREE((La/Yb)_N=1.97-2.19), no obvious Eu anomalies(δEu=0.90-0.94), negative Nb anomalies, and depletion in Ti-P on primitive mantle-normalized trace element diagrams. Such geochemical signatures are similar to those of arc volcanic rocks. Together with other geological observations, it is proposed that the tectonic setting of the metabasic rocks is island arc which is dynamically related to ocean subduction along the southwestern margin of the Yangtze block. These results provide new evidence to understand the Neoproterozoic tectonic evolution of the Ailaoshan tectonic belt and even the whole South China.
- metabasic rock,
- subduction,
- Neoproterozoic,
- Ailaoshan tectonic belt,
- Yaoshan Group,
- petrology,
- geochemistry

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References(59)

References

Bromiley, G. D., Redfern, S. A. T., 2008. The Role of TiO₂ Phases during Melting of Subduction-Modified Crust: Implications for Deep Mantle Melting. Earth and Planetary Science Letters, 267(1-2): 301-308. https://doi.org/10.1016/j.epsl.2007.11.033

Cai, Y. F., Wang, Y. J., Cawood, P. A., et al., 2014. Neoproterozoic Subduction along the Ailaoshan Zone, South China: Geochronological and Geochemical Evidence from Amphibolite. Precambrian Research, 245: 13-28. https://doi.org/10.1016/j.precamres.2014.01.009

Cai, Y. F., Wang, Y. J., Cawood, P. A., et al., 2015. Neoproterozoic Crustal Growth of the Southern Yangtze Block: Geochemical and Zircon U-Pb Geochronological and Lu-Hf Isotopic Evidence of Neoproterozoic Diorite from the Ailaoshan Zone. Precambrian Research, 266: 137-149. https://doi.org/10.1016/j.precamres.2015.05.008

Condie, K. C., 1999. Mafic Crustal Xenoliths and the Origin of the Lower Continental Crust. Lithos, 46(1): 95-101. https://doi.org/10.1016/s0024-4937(98)00056-5

Du, L. L., Guo, J. H., Geng, Y. S., et al., 2013. Age and Tectonic Setting of the Yanbian Group in the Southwestern Yangtze Block: Constraints from Clastic Sedimentary Rocks. Acta Petrologica Sinica, 29(2): 641-672(in Chinese with English abstract).

Jian, P., Liu, D. Y., Kröner, A., et al., 2009. Devonian to Permian Plate Tectonic Cycle of the Paleo-Tethys Orogen in Southwest China (Ⅰ): Geochemistry of Ophiolites, Arc/Back-Arc Assemblages and Within-Plate Igneous Rocks. Lithos, 113(3-4): 748-766. https://doi.org/10.1016/j.lithos.2009.04.004

Leloup, P. H., Lacassin, R., Tapponnier, P., et al., 1995. The Ailao Shan-Red River Shear Zone (Yunnan, China), Tertiary Transform Boundary of Indochina. Tectonophysics, 251(1-4): 3-84. https://doi.org/10.1016/0040-1951(95)00070-4

Li, B. L., Ji, J. Q., Wang, D. D., et al., 2012. Neoproterozoic Magmatism in South Yunnan: Evidence from SHRIMP Zircon U-Pb Geochrological Results of High-Grade Metamorphic Rocks in the Yaoshan Group. Acta Geologica Sinica, 86(10): 1584-1591(in Chinese with English abstract).

Li, W. X., Li, X. H., Li, Z. X., et al., 2008. Obduction-Type Granites within the NE Jiangxi Ophiolite: Implications for the Final Amalgamation between the Yangtze and Cathaysia Blocks. Gondwana Research, 13(3): 288-301. https://doi.org/10.1016/j.gr.2007.12.010

Li, X. H., Li, Z. X., Zhou, H. W., et al., 2002. U-Pb Zircon Geochronology, Geochemistry and Nd Isotopic Study of Neoproterozoic Bimodal Volcanic Rocks in the Kangdian Rift of South China: Implications for the Initial Rifting of Rodinia. Precambrian Research, 113(1-2): 135-154. https://doi.org/10.1016/s0301-9268(01)00207-8

Li, X. H., Qi, C. S., Liu, Y., et al., 2005. Petrogenesis of the Neoproterozoic Bimodal Volcanic Rocks along the Western Margin of the Yangtze Block: New Constraints from Hf Isotopes and Fe/Mn Ratios. Chinese Science Bulletin, 50(21): 2481-2486. https://doi.org/10.1360/982005-287

Li, Z. X., Li, X. H., Kinny, P. D., et al., 1999. The Breakup of Rodinia: Did it Start with a Mantle Plume beneath South China? Earth and Planetary Science Letters, 173(3): 171-181. https://doi.org/10.1016/s0012-821x(99)00240-x

Liao, Z., Liu, Y. P., Li, Z. X., et al., 2014. Zircon SHRIMP U-Pb Geochronology of the Yaoshan Group, Southeastern Yunnan, China and Its Geological Significance. Bulletin of Mineralogy, Petrology and Geochemistry, 33(2): 154-162(in Chinese with English abstract).

Liu, G. C., Chen, G. Y., Li, J., et al., 2020. Petrogenesis of Xiangshui Granite from Xiangyun, in the West Margin of Yangtze Block: Zircon U-Pb Geochronology, Geochemical and Sr-Nd Isotope Constraints. Earth Science, 45(7): 2426-2440(in Chinese with English abstract).

Liu, G. C., Li, J., Hu, S. B., et al., 2018. Characteristics and Geological Significance of Early Proterozoic Turbidite in Yuanjiang of Central Yunnan Province. Geological Bulletin of China, 37(11): 2007-2014(in Chinese with English abstract).

Liu, H. C., Zi, J. W., Cawood, P. A., et al., 2020. Reconstructing South China in the Mesoproterozoic and Its Role in the Nuna and Rodinia Supercontinents. Precambrian Research, 337: 105558. https://doi.org/10.1016/j.precamres.2019.105558

Liu, J. L., Wang, A. J., Cao, S. Y., et al., 2008. Geochronology and Tectonic Implication of Migmatites from Diancangshan, Western Yunnan, China. Acta Petrologica Sinica, 24(3): 413-420(in Chinese with English abstract).

Liu, S. D., Zeng, Z. X., Guo, R. L., et al., 2021. Huashan Group in Northern Margin of Yangtze Block: A Suite of Back-Arc-Basin Volcanic-Sedimentary Strata But not Ophiolite Mélange. Earth Science, 46(8): 2751-2767(in Chinese with English abstract).

Liu, Y., Liu, H. C., Li, X. H., 1996. Simultaneous and Precise Determination of 40 Trace Elements in Rock Samples Using ICP-MS. Geochimica, 25(6): 552-558(in Chinese with English abstract).

Luhr, J. F., Haldar, D., 2006. Barren Island Volcano (NE Indian Ocean): Island-Arc High-Alumina Basalts Produced by Troctolite Contamination. Journal of Volcanology and Geothermal Research, 149(3-4): 177-212. https://doi.org/10.1016/j.jvolgeores.2005.06.003

Ma, Y. C., Cai, Y. F., Ma, L. Y., et al., 2021. Genesis of Neoproterozoic Amphibolite in Diancangshan, West Yunnan: Evidence from Zircon U-Pb Age and Whole-Rock Geochemistry. Earth Science, 46(8): 2860-2872(in Chinese with English abstract).

Qi, X. X., Zeng, L. S., Zhu, L. H., et al., 2012. Zircon U-Pb and Lu-Hf Isotopic Systematics of the Daping Plutonic Rocks: Implications for the Neoproterozoic Tectonic Evolution of the Northeastern Margin of the Indochina Block, Southwest China. Gondwana Research, 21(1): 180-193. https://doi.org/10.1016/j.gr.2011.06.004

Stern, R. A., Hanson, G. N., 1991. Archean High-Mg Granodiorite: A Derivative of Light Rare Earth Element-Enriched Monzodiorite of Mantle Origin. Journal of Petrology, 32(1): 201-238. https://doi.org/10.1093/petrology/32.1.201

Sun, C. B., Li, Z. Q., Wang, D. Y., et al., 2019. Petrogeochemistry and Zircon U-Pb Age of the Mayu Granodiorite in the Southern Section of Ailaoshan Tectonic Belt. Geological Bulletin of China, 38(Suppl. 1): 223-230(in Chinese with English abstract).

Sun, S. S., McDonough, W. F., 1989. Chemical and Isotopic Systematics of Oceanic Basalts: Implications for Mantle Composition and Processes. Geological Society, London, Special Publications, 42(1): 313-345. https://doi.org/10.1144/gsl.sp.1989.042.01.19

Wang, H. B., Cao, S. Y., Li, J. Y., et al., 2019. Cenozoic Multi-Metamorphism, Shear Deformation and Geological Significance of Ailaoshan High-Grade Metamorphic Complex, Western Yunnan, China. Acta Petrologica Sinica, 35(8): 2573-2596(in Chinese with English abstract). doi: 10.18654/1000-0569/2019.08.15

Wang, J., Li, X. H., Duan, T. Z., et al., 2003. Zircon SHRIMP U-Pb Dating for the Cangshuipu Volcanic Rocks and Its Implications for the Lower Boundary Age of the Nanhua Strata in South China. Chinese Science Bulletin, 48(16): 1663-1669. https://doi.org/10.1360/03wd0168

Wang, X. L., Shu, L. S., Xing, G. F., et al., 2012. Post-Orogenic Extension in the Eastern Part of the Jiangnan Orogen: Evidence from ca. 800-760 Ma Volcanic Rocks. Precambrian Research, 222-223: 404-423. https://doi.org/10.1016/j.precamres.2011.07.003

Wang, Y. Z., Ding, J., 1996. Structural Deformation and Evolution of the Medium to High Grade Metamorphic Rock Series in the Ailao Mountains, Yunnan. Sedimentary Geology and Tethyan Geology, 16(20): 52-69(in Chinese with English abstract).

Woodhead, J., Eggins, S., Gamble, J., 1993. High Field Strength and Transition Element Systematics in Island Arc and Back-Arc Basin Basalts: Evidence for Multi-Phase Melt Extraction and a Depleted Mantle Wedge. Earth and Planetary Science Letters, 114(4): 491-504. https://doi.org/10.1016/0012-821x(93)90078-n

Xu, X. Y., Xia, L. Q., Chen, J. L., et al., 2009. Zircon U-Pb Dating and Geochemical Study of Volcanic Rocks from Sunjiahe Formation of Xixiang Group in Northern Margin of Yangtze Plate. Acta Petrologica Sinica, 25(12): 3309-3326(in Chinese with English abstract).

Yuan, H. L., Gao, S., Liu, X. M., et al., 2004. Accurate U-Pb Age and Trace Element Determinations of Zircon by Laser Ablation-Inductively Coupled Plasma-Mass Spectrometry. Geostandards and Geoanalytical Research, 28(3): 353-370. https://doi.org/10.1111/j.1751-908x.2004.tb00755.x

Zhai, M. G., Cong, B. L., Qiao, G. S., et al., 1990. Sm-Nd and Rb-Sr Geochronology of Metamorphic Rocks from SW Yunnan Orogenic Zones, China. Acta Petrologica Sinica, 6(4): 1-11(in Chinese with English abstract).

Zhao, F. Q., Zhao, W. P., Zuo, Y. C., et al., 2006. Geochronology of Neoproterozoic Magmatic Rocks in Hanzhong, Southern Shaanxi, China. Geological Bulletin of China, 25(3): 383-388(in Chinese with English abstract).

Zhao, J. H., Zhou, M. F., 2007. Geochemistry of Neoproterozoic Mafic Intrusions in the Panzhihua District (Sichuan Province, SW China): Implications for Subduction-Related Metasomatism in the Upper Mantle. Precambrian Research, 152(1-2): 27-47. https://doi.org/10.1016/j.precamres.2006.09.002

Zhao, J. H., Zhou, M. F., 2009. Secular Evolution of the Neoproterozoic Lithospheric Mantle underneath the Northern Margin of the Yangtze Block, South China. Lithos, 107(3-4): 152-168. https://doi.org/10.1016/j.lithos.2008.09.017

Zhang, Y. Y., Zhang, D., Chen, X. H., et al., 2021. U-Pb Chronology, Lithogeochemistry and Tectonic Significance of Late Permain Granite Porphyry in Zhenyuan Gold Deposit, the Middle Section of Ailaoshan. Acta Petrologica Sinica, 37(6): 1674-1690(in Chinese with English abstract). doi: 10.18654/1000-0569/2021.06.03

Zheng, Y. F., Wu, R. X., Wu, Y. B., et al., 2008. Rift Melting of Juvenile Arc-Derived Crust: Geochemical Evidence from Neoproterozoic Volcanic and Granitic Rocks in the Jiangnan Orogen, South China. Precambrian Research, 163(3-4): 351-383. https://doi.org/10.1016/j.precamres.2008.01.004

Zhou, H. W., Li, X. H., Wang, H. R., et al., 2002. U-Pb Zircon Geochronology of Basic Volcanic Rocks of the Yingyangguan Group in Hezhou, Guangxi, and Its Tectonic Implications. Geological Review, 48(S1): 22-25(in Chinese with English abstract).

Zhou, M. F., Kennedy, A. K., Sun, M., et al., 2002. Neoproterozoic Arc-Related Mafic Intrusions along the Northern Margin of South China: Implications for the Accretion of Rodinia. The Journal of Geology, 110(5): 611-618. https://doi.org/10.1086/341762

Zou, R., Zhu, B. Q., Sun, D. Z., et al., 1997. Geochronology Studies of Crust-Mantle Interaction and Mineralization in the Honghe Ore Deposit Zone. Geochimica, 26(2): 46-56(in Chinese with English abstract).

杜利林, 郭敬辉, 耿元生, 等, 2013. 扬子西南缘盐边群时代及构造环境: 来自碎屑沉积岩的约束. 岩石学报, 29(2): 641-672.

李宝龙, 季建清, 王丹丹, 等, 2012. 滇南新元古代的岩浆作用: 来自瑶山群深变质岩SHRIMP锆石U-Pb年代学证据. 地质学报, 86(10): 1584-1591.

廖震, 刘玉平, 李正祥, 等, 2014. 滇东南瑶山群SHRIMP锆石U-Pb年代学及其地质意义. 矿物岩石地球化学通报, 33(2): 154-162.

刘桂春, 陈光艳, 李静, 等, 2020. 扬子西缘祥云响水花岗岩体的成因: 锆石U-Pb年代学、岩石地球化学和Sr-Nd同位素制约. 地球科学, 45(7): 2426-2440. doi: 10.3799/dqkx.2020.041

刘桂春, 李静, 胡绍斌, 等, 2018. 滇中元江古元古代浊积岩特征及其地质意义. 地质通报, 37(11): 2007-2014.

刘俊来, 王安建, 曹淑云, 等, 2008. 滇西点苍山杂岩中混合岩的地质年代学分析及其区域构造内涵. 岩石学报, 24(3): 413-420.

刘述德, 曾佐勋, 郭瑞禄, 等, 2021. 扬子陆块北缘花山群: 弧后盆地火山-沉积岩系而非蛇绿混杂岩. 地球科学, 46(8): 2751-2767. doi: 10.3799/dqkx.2020.266

刘颖, 刘海臣, 李献华, 1996. 用ICP-MS准确测定岩石样品中的40余种微量元素. 地球化学, 25(6): 552-558. doi: 10.3321/j.issn:0379-1726.1996.06.004

麻艺超, 蔡永丰, 马莉燕, 等, 2021. 滇西点苍山新元古代斜长角闪岩的成因: 来自锆石U-Pb年龄和全岩地球化学的证据. 地球科学, 46(8): 2860-2872. doi: 10.3799/dqkx.2020.288

孙崇波, 李忠权, 王道永, 等, 2019. 哀牢山构造带南段马玉花岗闪长岩地球化学特征及其锆石U-Pb年龄. 地质通报, 38(Suppl. 1): 223-230.

王浩博, 曹淑云, 李俊瑜, 等, 2019. 滇西哀牢山深变质杂岩新生代多期变质、剪切变形及地质意义. 岩石学报, 35(8): 2573-2596.

王义昭, 丁俊, 1996. 云南哀牢山中深变质岩系构造变形特征及演变. 特提斯地质, 16(20): 52-69.

徐学义, 夏林圻, 陈隽璐, 等, 2009. 扬子地块北缘西乡群孙家河组火山岩形成时代及元素地球化学研究. 岩石学报, 25(12): 3309-3326.

翟明国, 从柏林, 乔广生, 等, 1990. 中国滇西南造山带变质岩的Sm-Nd和Rb-Sr同位素年代学. 岩石学报, 6(4): 1-11.

张垚垚, 张达, 陈宣华, 等, 2021. 哀牢山中段镇沅金矿晚二叠世花岗斑岩U-Pb年代学、岩石地球化学及其构造意义. 岩石学报, 37(6): 1674-1690.

赵凤清, 赵文平, 左义成, 等, 2006. 陕南汉中地区新元古代岩浆岩U-Pb年代学. 地质通报, 25(3): 383-388.

周汉文, 李献华, 王汉荣, 等, 2002. 广西鹰扬关群基性火山岩的锆石U-Pb年龄及其地质意义. 地质论评, 48(增刊1): 22-25.

邹日, 朱炳泉, 孙大中, 等, 1997. 红河成矿带壳幔演化与成矿作用的年代学研究. 地球化学, 26(2): 46-56.

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Identification of Neoproterozoic Metabasic Rocks in Yaoshan Group, Yunnan Province and Its Geological Implications

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