皖南蛇绿岩伏川铬铁矿床成因：铬铁矿母岩浆证据

刘婷; 郑有业; 武珺

doi:10.3799/dqkx.2020.198

Volume 46 Issue 5

May 2021

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Liu Ting, Zheng Youye, Wu Jun, 2021. Genesis of Fuchuan Chromitites at South Anhui, Implications from the Parental Melts. Earth Science, 46(5): 1613-1629. doi: 10.3799/dqkx.2020.198

Citation:

Liu Ting, Zheng Youye, Wu Jun, 2021. Genesis of Fuchuan Chromitites at South Anhui, Implications from the Parental Melts. Earth Science, 46(5): 1613-1629. doi: 10.3799/dqkx.2020.198

Liu Ting, Zheng Youye, Wu Jun, 2021. Genesis of Fuchuan Chromitites at South Anhui, Implications from the Parental Melts. Earth Science, 46(5): 1613-1629. doi: 10.3799/dqkx.2020.198

Citation:

Liu Ting, Zheng Youye, Wu Jun, 2021. Genesis of Fuchuan Chromitites at South Anhui, Implications from the Parental Melts. Earth Science, 46(5): 1613-1629. doi: 10.3799/dqkx.2020.198

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Genesis of Fuchuan Chromitites at South Anhui, Implications from the Parental Melts

doi: 10.3799/dqkx.2020.198

Liu Ting^{1, 2
,
,},
Zheng Youye^{1, 3
,
,},
Wu Jun²

1.
School of Earth Sciences and Resources, China University of Geosciences, Beijing 100083, China
2.
Anhui Technical College of Industry and Economy, Hefei 230051, China
3.
State Key Laboratory of Geological Processes and Mineral Resources, China University of Geosciences, Wuhan 430074, China

Received Date: 2020-06-04
Publish Date: 2021-05-15

Abstract

Abstract

South Anhui ophiolite, one of the oldest ophiolites in southern China, is located in the northeastern most segment of Jiangnan orogen. The ultramafic rocks in this area are extensively serpentinized which constrains the researches here and it is challenging for further studies. In order to investigate the origin of the South Anhui ophiolites and the Fuchuan chromitites, detailed observation with microscope and electron probe micro-analyzer was made for the mineralogy analysis of chromites and paragenetic minerals in harzburgites and chromitites. The chromites can be divided into two types, namely, type Ⅰ with kämmererite as the gangue mineral, and type Ⅱ with diallage as the gangue mineral. All the chromites are typical Alpine-type high aluminum chromites, most of which develop fractures, and along the rim and fractures are altered into ferritchromite. The unaltered core part of the chromites which retains the pristine composition was studied, and the spinels in harzburgites are characterized by moderate Cr^# (100×Cr/(Cr+Al), 54.12-65.18) and low Mg^# (100×Mg/(Mg+Fe²⁺), 42.37-54.84), and those of the chromites from the chromitites are 53.97-62.29 and 59.49-68.57, respectively. The calculated component of parental melts of the chromitites is similar to MORB (mid-ocean ridge basalt), indicating the derivation from MORB. The oxygen fugacity is low (-0.14 to +0.68log(QFM)), showing the feature of transition from MORB to SSZ (suprasubduction zone) setting. Combining with the field phenomena, it is believed that chromitites might be formed from the interaction of peridotites and MORB, and together with the SSZ feature of the harzburgites, reflecting that the formation of South Anhui ophiolites might be the result of the combined effect of partial melting of the peridotites, rock-melt interaction, and plate subduction, which provides vital evidence for the tectonic and evolution of the Jiangnan orogen.
- Fuchuan chromitite,
- South Anhui ophiolite,
- MORB,
- SSZ,
- Jiangnan orogen,
- mineral deposit

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References(56)

References

Anhui Bureau of Geology and Mineral Resources, 1987. Regional Geological Map of Anhui Province, China (Scale 1∶500 000), 4 Sheets. Geological Publishing House, Beijing (in Chinese).

Arai, S., 1994. Characterization of Spinel Peridotites by Olivine-Spinel Compositional Relationships: Review and Interpretation. Chemical Geology, 113(3-4): 191-204. https://doi.org/10.1016/0009-2541(94)90066-3

Arai, S., Miura, M., 2016. Formation and Modification of Chromitites in the Mantle. Lithos, 264: 277-295. https://doi.org/10.1016/j.lithos.2016.08.039

Bai, W. J., Yang, J. S., Robinson, P. T., et al., 2001. Study of Diamonds from Chromitites in the Luobusa Ophiolite, Tibet. Acta Geologica Sinica, (3): 404-409 (in Chinese with English abstract).

Ballhaus, C., Berry, R. F., Green, D. H., 1991. High Pressure Experimental Calibration of the Olivine-Orthopyroxene-Spinel Oxygen Geobarometer: Implications for the Oxidation State of the Upper Mantle. Contributions to Mineralogy and Petrology, 107(1): 27-40. https://doi.org/10.1007/BF00311183

Barnes, S. J., Roeder, P. L., 2001. The Range of Spinel Compositions in Terrestrial Mafic and Ultramafic Rocks. Journal of Petrology, 42(12): 2279-2302. https://doi.org/10.1093/petrology/42.12.2279

Chen, Y.H., Yang, J.S., 2018. Formation of Podiform Chromitite Deposits: Review and Prospects. Earth Science, 43(4): 991-1010 (in Chinese with English abstract). http://en.cnki.com.cn/Article_en/CJFDTOTAL-DQKX201804005.htm

Cottrell, E., Kelley, K. A., 2011. The Oxidation State of Fe in MORB Glasses and the Oxygen Fugacity of the Upper Mantle. Earth and Planetary Science Letters, 305(3-4): 270-282. https://doi.org/10.1016/j.epsl.2011.03.014

Dare, S. A. S., Pearce, J. A., Mcdonald I., et al., 2009. Tectonic Discrimination of Peridotites Using fo₂-Cr^# and Ga-Ti-Fe^Ⅲ Systematics in Chrome-Spinel. Chemical Geology, 261(3 - 4): 199-216. https://doi.org/10.1016/j.chemgeo.2008.08.002

Dick, H. J. B., Bullen, T., 1984. Chromian Spinel as a Petrogenetic Indicator in Abyssal and Alpine-Type Peridotites and Spatially Associated Lavas. Contributions to Mineralogy and Petrology, 86(1): 54-76. https://doi.org/10.1007/BF00373711

Ding, B.H., Shi, R.D., Zhi, X.C., et al., 2008. Neoproterozoic (about 850 Ma) Subduction in the Jiangnan Orogen: Evidence from the SHRIMP U-Pb Dating of the SSZ-Type Ophiolite in Southern Anhui Province. Acta Petrologica et Mineralogica, 27(5): 375-388 (in Chinese with English abstract).

Droop, G. T. R., 1987. A General Equation for Estimating Fe³⁺ Concentrations in Ferromagnesian Silicates and Oxides from Microprobe Analyses, Using Stoichiometric Criteria. Mineralogical Magazine, 51: 431-435. https://doi.org/10.1180/minmag.1987.051.361.10

Garuti, G., Pushkarev, E. V., Thalhammer, O. A. R., et al., 2012. Chromitites of the Urals (Part 1): Overview of Chromite Mineral Chemistry and Geotectonic Setting. Ofioliti, 37(1): 27-53. http://www.istic.ac.cn/suoguan/detailed.htm?dbname=xw_qk&wid=0220121000281609

Irvine, T. N., 1965. Chromian Spinel as a Petrogenetic Indicator Part 1, Theory. Canadian Journal of Earth Science, 2: 648-673. https://doi.org/10.1139/e65-046

Kamenetsky, V. S., Crawford, A. J., Meffre, S., 2001. Factors Controlling Chemistry of Magmatic Spinel: An Empirical Study of Associated Olivine, Cr-Spinel and Melt Inclusions from Primitive Rocks. Journal of Petrology, 42(4): 655-671. https://doi.org/10.1093/petrology/42.4.655

Lian, D. Y., Yang, J. S., Liu, F., et al., 2019. Diamond Classification, Compositional Characteristics, and Research Progress: A Review. Earth Science, 44(10): 3409-3453 (in Chinese with English abstract). http://en.cnki.com.cn/Article_en/CJFDTotal-DQKX201910017.htm

Liu, T., Zheng, Y.Y., Guo, T.J., 2019a. Optimal Geochemical Features of Medium and Large-Sized Podiform Chromite Ores. Geological Science and Technology Information, 38(2): 217-225 (in Chinese with English abstract).

Liu, T., Zheng, Y.Y., Wang, P.C., et al., 2019b. Geochemical Indicator for Podiform Chromite Mineralization and Its Formation Mechanism. Bulletin of Mineralogy, Petrology and Geochemistry, 38(1): 176-183, 194 (in Chinese with English abstract). http://en.cnki.com.cn/Article_en/CJFDTOTAL-KYDH201901020.htm

Liu, X., Su, B.X., Bai, Y., et al., 2018. Ca-Enrichment Characteristics of Parental Magmas of Chromitite in Ophiolite: Inference from Mineral Inclusions. Earth Science, 43(4): 1038-1050 (in Chinese with English abstract). http://en.cnki.com.cn/Article_en/CJFDTotal-DQKX201804008.htm

Maurel, C., Maurel, P., 1982. Étude Expérimental de la Distribution de L'aluminium Entre Bain Silicate Basique et Spinelle Chromifére. Implications Pétrogenetiques: Teneur en Chrome des Spinelles. Bulletin de Mineralogie, 105: 197-202. https: //doi.org/10.3406/bulmi.1982.7605

Morimoto, N., 1988. Nomenclature of Pyroxenes. Mineralogy and Petrology, 39(1): 55-76. https://doi.org/10.1007/BF01226262

Najafzadeh, A. R., 2017. Mineralogy and Composition of Chromitites and Host Peridotites from the Colkahan Ultramafic Complex (Nazdasht Mine), Kerman, Southeastern Iran. Mineralogy and Petrology, 111(3): 337-350. https://doi.org/10.1007/s00710-016-0479-6

Ni, X. Y., Ba, D. Z., Yang, M. T., 1992. Texture and Structure of Upper Mantle Peridotites and Chromitites in Tibet. China University of Geosciences Press, China(in Chinese).

No. 332 Geological Team of Anhui Bureau of Geology and Mineral Exploration, 1962. Report on the Geochemical Ore Exploration of Ultramafic Rocks at the East Shexian, Anhui Province (in Chinese).

Pagé, P., Barnes, S., 2009. Using Trace Elements in Chromites to Constrain the Origin of Podiform Chromitites in the Thetford Mines Ophiolite, Québec, Canada. Economic Geology, 104: 997-1018. https://doi.org/10.2113/gsecongeo.104.7.997

Pagé, P., Bédard, J. H., Schroetter, J., et al., 2008. Mantle Petrology and Mineralogy of the Thetford Mines Ophiolite Complex. Lithos, 100: 255-292. https://doi.org/10.1016/j.lithos.2007.06.017

Pearce, J. A., Barker, P. F., Edwards, S. J., et al., 2000. Geochemistry and Tectonic Significance of Peridotites from the South Sandwich Arc-Basin System, South Atlantic. Contributions to Mineralogy and Petrology, 139(1): 36-53. https://doi.org/10.1007/s004100050572

Rollinson, H., 2005. Chromite in the Mantle Section of the Oman Ophiolite: A New Genetic Model. Island Arc, 14(4): 542-550. https://doi.org/10.1111/j.1440-1738.2005.00482.x

Rollinson, H., 2008. The Geochemistry of Mantle Chromitites from the Northern Part of the Oman Ophiolite: Inferred Parental Melt Compositions. Contributions to Mineralogy and Petrology, 156(3): 273-288. https://doi.org/10.1007/s00410-008-0284-2

Rollinson, H., Adetunji, J., Yousif, A. A., et al., 2012. New Mössbauer Measurements of Fe³⁺ / ΣFe in Chromites from the Mantle Section of the Oman Ophiolite: Evidence for the Oxidation of the Sub-Oceanic Mantle. Mineralogical Magazine, 76(3): 579-596. https://doi.org/10.1180/minmag.2012.076.3.09

Shu, L. S., Wang, J. Q., Yao J. L., 2019. Tectonic Evolution of the Eastern Jiangnan Region, South China: New Findings and Implications on the Assembly of the Rodinia Supercontinent. Precambrian Research, 322: 42-65. https://doi.org/10.1016/j.precamres.2018.12.007

Tamura, A., Arai, S., 2006. Harzburgite-Dunite-Orthopyroxenite Suite as a Record of Supra-Subduction Zone Setting for the Oman Ophiolite Mantle. Lithos, 90: 43-56. https://doi.org/10.1016/j.lithos.2005.12.012

Tian, Y. Z., 2015. Genesis of High-Al Chromitite of the Sartohay Ophiolite, Xinjiang (Dissertation). Chinese Academy of Geological Sciences, Beijing (in Chinese with English abstract).

Uysal, I., Akmaz, R. M., Kapsiotis, A., et al., 2015. Genesis and Geodynamic Significance of Chromitites from the Orhaneli and Harmancık Ophiolites (Bursa, NW Turkey) as Evidenced by Mineralogical and Compositional Data. Ore Geology Reviews, 65: 26-41. https://doi.org/10.1016/j.oregeorev.2014.08.006

Whattam, S. A., Stern, R. J., 2011. The 'Subduction Initiation Rule': A Key for Linking Ophiolites, Intra-Oceanic Forearcs, and Subduction Initiation. Contributions to Mineralogy and Petrology, 162(5): 1031-1045. https://doi.org/10.1007/s00410-011-0638-z

Yamamoto, S., Komiya, T., Hirose, K., et al., 2009. Coesite and Clinopyroxene Exsolution Lamellae in Chromites: In-Situ Ultrahigh Pressure Evidence from Podiform Chromites in the Luobusa Ophiolite, Southern Tibet. Lithos, 109: 314-322. https://doi.org/10.1016/j.lithos.2008.05.003

Yang, J. S., Ba, D. Z., Xu, X. Z., et al., 2010. A Restudy of Podiform Chromite Deposits and Their Ore Prospecting Vista in China. Geology in China, 37(4): 1141-1150 (in Chinese with English abstract). http://en.cnki.com.cn/Article_en/CJFDTOTAL-DIZI201004030.htm

Zhang, C. L., Santosh, M., Zou, H. B., et al., 2013. The Fuchuan Ophiolite in Jiangnan Orogen: Geochemistry, Zircon U-Pb Geochronology, Hf Isotope and Implications for the Neoproterozoic Assembly of South China. Lithos, 179: 263-274. doi: 10.1016/j.lithos.2013.08.015

Zhou, M. F., Robinson, P. T., 1994. High-Cr and High-Al Podiform Chromitites, Western China: Relationship to Partial Melting and Melt/Rock Reaction in the Upper Mantle. International Geology Review, 36(7): 678-686. https://doi.org/10.1080/00206819409465481

Zhou, M. F., Robinson, P. T., Malpas, J., et al., 1996. Podiform Chromitites in the Luobusa Ophiolite (Southern Tibet): Implications for Melt-Rock Interaction and Chromite Segregation in the Upper Mantle. Journal of Petrology, 37(1): 3-21. https://doi.org/10.1093/petrology/37.1.3

Zhou, W. T., 2016. Characteristic and Tectonic Significances of Zonal Spinel in Northeastern Jiangxi Ophiolite (Dissertation). East China Institute of Technology, Nanchang (in Chinese with English abstract).

Zhou, X. M., Zou, H. B., Yang, J. D., et al., 1989. Sm-Nd Isochronous Age of Fuchuan Ophiolite Suite in Shexian County, Anhui Province and Its Geological Significance. Chinese Science Bulletin, (16): 1243-1245 (in Chinese). http://www.cnki.com.cn/Article/CJFDTotal-JXTW199003006.htm

安徽省地质矿产局, 1987. 安徽省区域地质图(1∶500 000), 四幅. 北京: 地质出版社.

白文吉, 杨经绥, Robinson, P. T., 等, 2001. 西藏罗布莎蛇绿岩铬铁矿中金刚石的研究. 地质学报, (3): 404-409. doi: 10.3321/j.issn:0001-5717.2001.03.014

陈艳虹, 杨经绥, 2018. 豆荚状铬铁矿床研究回顾与展望. 地球科学, 43(4): 991-1010. doi: 10.3799/dqkx.2018.704

丁炳华, 史仁灯, 支霞臣, 等, 2008. 江南造山带存在新元古代(~850 Ma)俯冲作用: 来自皖南SSZ型蛇绿岩锆石SHRIMP U-Pb年龄证据. 岩石矿物学杂志, 27(5): 375-388. doi: 10.3969/j.issn.1000-6524.2008.05.001

连东洋, 杨经绥, 刘飞, 等, 2019. 金刚石分类、组成特征以及我国金刚石研究展望. 地球科学, 44(10): 3409-3453. doi: 10.3799/dqkx.2018.392

刘婷, 郑有业, 郭统军, 2019a. 大中型豆荚状铬铁矿床地球化学特征研究. 地质科技情报, 38(2): 217-225. https://www.cnki.com.cn/Article/CJFDTOTAL-DZKQ201902025.htm

刘婷, 郑有业, 王朋冲, 等, 2019b. 豆荚状铬铁矿床成矿地球化学指标对比和成矿作用讨论. 矿物岩石地球化学通报, 38(1): 176-183, 194. https://www.cnki.com.cn/Article/CJFDTOTAL-KYDH201901020.htm

刘霞, 苏本勋, 白洋, 等, 2018. 蛇绿岩中铬铁岩母岩浆的富Ca特征: 矿物包裹体证据. 地球科学, 43(4): 1038-1050. doi: 10.3799/dqkx.2018.707

倪心垣, 巴登珠, 杨茂同, 1992. 西藏上地幔橄榄岩及铬铁矿石结构构造图册. 武汉: 中国地质大学出版社.

安徽省地质矿产勘查局332地质队, 1962. 安徽省歙县东部地区超基性岩地球化学普查找矿工作报告.

田亚洲, 2015. 新疆萨尔托海蛇绿岩中高铝型铬铁矿成因(博士学位论文). 北京: 中国地质科学院.

杨经绥, 巴登珠, 徐向珍, 等, 2010. 中国铬铁矿床的再研究及找矿前景. 中国地质, 37(4): 1141-1150. doi: 10.3969/j.issn.1000-3657.2010.04.028

周文婷, 2016. 赣东北蛇绿混杂岩岩石地球化学特征及构造意义(硕士学位论文). 南昌: 东华理工大学.

周新民, 邹海波, 杨杰东, 等, 1989. 安徽歙县伏川蛇绿岩套的Sm-Nd等时线年龄及其地质意义. 科学通报, (16): 1243-1245. doi: 10.3321/j.issn:0023-074X.1989.16.003

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Genesis of Fuchuan Chromitites at South Anhui, Implications from the Parental Melts

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