西藏双湖县达威地区沉积型铬铁矿的发现及其找矿指示意义

李明键; 王保弟; 韩松; 许留洋; 徐曦; 孙艳云; 匡星涛

doi:10.3799/dqkx.2026.159

西藏双湖县达威地区沉积型铬铁矿的发现及其找矿指示意义

doi: 10.3799/dqkx.2026.159

中国自然资源航空物探遥感中心, 北京 100083

基金项目:

国家自然科学基金地质联合基金项目 U2344203

国家自然科学基金地质联合基金项目 U2544216

中国地质调查局地质调查项目 DD20230101703

中国地质调查局地质调查项目 DD202601103501

国家自然科学基金青年科学基金项目 42503038

详细信息

作者简介:
李明键（1993-），男，博士，主要从事青藏高原岩石地球化学研究工作. E-mail：mingjian_li@126.com

通讯作者:
王保弟，E-mail: baodiwang@163.com

计量
- 文章访问数: 18
- HTML全文浏览量: 12
- PDF下载量: 3
- 被引次数: 0
出版历程
- 刊出日期: 2026-05-25

The Discovery of Sedimentary Chromite Deposits in Dawa Area of Shuanghu County, Xizang and Its Significance for Mineral Exploration

摘要

HTML全文

图 1 青藏高原大地构造格架（a）和班公湖‒怒江带蛇绿岩分布简图（b）及达威地区地质简图（c）

a.据Yin and Harrison（2000）；JSSZ.金沙江缝合带；LSSZ.龙木错‒双湖‒澜沧江缝合带；BNSZ.班公湖‒怒江缝合带；IYZSZ.雅鲁藏布江缝合带；b.修改自Zeng et al.（2018）及其参考文献；c.修改自郑有业等（2003）

下载: 全尺寸图片幻灯片

图 2 达威地区铬铁矿与东巧组变质砂岩野外及显微镜下特征

a.铬铁矿与东巧组变质砂岩野外露头；b，c.东巧组变质砂岩和铬铁矿显微镜下特征. Spl.尖晶石；Q.石英

下载: 全尺寸图片幻灯片

图 3 达威地区铬铁矿TIMA矿物成分扫描图像

a.铬铁矿薄片Cr元素分布，其颜色深浅代表灰度值；b.铬铁矿薄片中矿物成分和比例

下载: 全尺寸图片幻灯片

图 4 达威‒东巧地区铬铁矿矿石中铬尖晶石成分图解

a.TiO₂ vs. Cr#图解；b.Al₂O₃ vs. TiO₂图解；东巧蛇绿岩型铬铁矿来自Xiong et al.（2026），翟庆国等（2026）；东巧沉积型铬铁矿来自曾罡等（2026）；深海和弧前橄榄岩的成分范围来自Dick and Bullen（1984）、Ishii et al.（1992）、Arai and Yurimoto（1994）以及Hébert et al.（2003）.MORB.洋中脊玄武岩；LIP.大火成岩省；OIB.洋岛玄武岩；BAB.弧后盆地玄武岩

下载: 全尺寸图片幻灯片

参考文献(45)

Arai, S., Yurimoto, H., 1994. Podiform Chromitites of the Tari-Misaka Ultramafic Complex, Southwestern Japan, as Mantle-Melt Interaction Products. Economic Geology, 89(6): 1279-1288. https://doi.org/10.2113/gsecongeo.89.6.1279
Bao, P. S., 2009. Further Discussion on the Genesis of the Podiform Chromite Deposits in the Ophiolites-Questioning about the Rock/ Melt Interaction Metallogeny. Geological Bulletin of China, 28(12): 1741-1761(in Chinese with English abstract).
Cao, C. Q., Yang, J. S., Yang, S. B., et al., 2022. The Feature and Tectonic Setting of Dongqiao Podiform Chromitite in the Central Segment of the Bangong Lake-Nujiang Suture Zone in Tibet. Acta Petrologica Sinica, 38(11): 3391-3410 (in Chinese with English abstract). https://doi.org/10.18654/1000-0569/2022.11.09
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
Girardeau, J., Marcoux, J., Allègre, C. J., et al., 1984. Tectonic Environment and Geodynamic Significance of the Neo-Cimmerian Donqiao Ophiolite, Bangong- Nujiang Suture Zone, Tibet. Nature, 307(5946): 27-31. https://doi.org/10.1038/307027a0
Hébert, R., Huot, F., Wang, C. S., et al., 2003. Yarlung Zangbo Ophiolites (Southern Tibet) Revisited: Geodynamic Implications from the Mineral Record. Geological Society, London, Special Publications, 218(1): 165-190. https://doi.org/10.1144/gsl.sp.2003.218.01.10
Ishii, T., Robinson, P. T., Maekawa, H., et al., 1992. Petrological Studies of Peridotites from Diapiric Serpentinite Seamounts in the Izu-Ogasawara-Mariana Forearc, Leg 125. Proceedings of the Ocean Drilling Program. Ocean Drilling Program, 125: 445.
Li, G. L., Yang, J. S., Bo, R. Z., et al., 2019. Dingqing Ophiolite Chromite in the Eastern Segment of Bangong Co-Nujiang Suture Zone, Xizang: Occurrence Characteristics and Classifications. Geology in China, 46(1): 1-20(in Chinese with English abstract).
Ma, A. L., Hu, X. M., Kapp, P., et al., 2020. Pre- Oxfordian (> 163 Ma) Ophiolite Obduction in Central Tibet. Geophysical Research Letters, 47(10): e2019GL086650. https://doi.org/10.1029/2019gl086650
Marcoux, J., Girardeau, J., Fourcade, E., et al., 1987. Geology and Biostratigraphy of the Jurassic and Lower Cretaceous Series to the North of the Lhasa Block (Tibet, China). Geodinamica Acta, 1(4/5): 313-325. https://doi.org/10.1080/09853111.1987.11105148
Pan, G. T., Wang, L. Q., Li, R. S., et al., 2012. Tectonic Evolution of the Qinghai-Tibet Plateau. Journal of Asian Earth Sciences, 53: 3-14. https://doi.org/10.1016/j.jseaes.2011.12.018
Shi, R. D., 2007. SHRIMP Dating of the Bangong Lake SSZ-Type Ophiolite: Constraints on the Closure Time of Ocean in the Bangong Lake-Nujiang River, Northwestern Tibet. Chinese Science Bulletin, 52(7): 936-941. https://doi.org/10.1007/s11434-007-0134-z
Shi, R. D., Griffin, W. L., O'Reilly, S. Y., et al., 2012. Melt/Mantle Mixing Produces Podiform Chromite Deposits in Ophiolites: Implications of Re-Os Systematics in the Dongqiao Neo-Tethyan Ophiolite, Northern Tibet. Gondwana Research, 21(1): 194-206. https://doi.org/10.1016/j.gr.2011.05.011
Shi, R. D., Yang, J. S., Xu, Z. Q., et al., 2008. The Bangong Lake Ophiolite (NW Tibet) and Its Bearing on the Tectonic Evolution of the Bangong-Nujiang Suture Zone. Journal of Asian Earth Sciences, 32(5/6): 438-457. https://doi.org/10.1016/j.jseaes.2007.11.011
Wang, B. D., Wang, L. Q., Chung, S. L., et al., 2016. Evolution of the Bangong-Nujiang Tethyan Ocean: Insights from the Geochronology and Geochemistry of Mafic Rocks within Ophiolites. Lithos, 245: 18-33. https://doi.org/10.1016/j.lithos.2015.07.016
Wang, M. Z., Cheng, L. R., 1980. New Discoveries and Understandings of the Mesozoic Strata in the Dongqiao-Jiangcuo Area, Northern Tibet. Journal of Jilin University (Earth Science Edition), 10(3): 14-20 (in Chinese with English abstract).
Wang, X. B., Bao, P. S., 1987. The Genesis of Podiform Chromite Deposits: A Case Study of the Luobosa Chromite Deposit, Tibet. Chinese Journal of Geology, 22(2): 166-181 (in Chinese with English abstract).
Xie, H. D., Gong, X. H., He, L., et al., 2025. Discussion Regarding the Characteristic Comparison of Ophiolites within the Bangongco-Nujiang Suture Zone and the Prospects for Chromite Deposits. Acta Geologica Sinica, 99(11): 3664-3686 (in Chinese).
Xiong, F. H., Zoheir, B., Xu, X. Z., et al., 2026. Petrogenesis of Chromitite Ores in the Dongqiao Ophiolite (Tibetan Plateau): Constraints from PGE Geochemistry and Fe-Mg Isotopes. Mineralium Deposita, 1-21. https://doi.org/10.1007/s00126-026-01435-6
Xiong, S. Q., Yang, H., Fan, Z. Y., et al., 2024. Research on Ophiolite Belts in China Based on Aeromagnetic Data. Acta Geologica Sinica, 98(3): 725-757(in Chinese with English abstract).
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).
Yang, J. S., Wu, W. W., Lian, D. Y., et al., 2021. Peridotites, Chromitites and Diamonds in Ophiolites. Nature Reviews Earth & Environment, 2(3): 198-212. https://doi.org/10.1038/s43017-020-00138-4
Yin, A., Harrison, T. M., 2000. Geologic Evolution of the Himalayan-Tibetan Orogen. Annual Review of Earth and Planetary Sciences, 28: 211-280. https://doi.org/10.1146/annurev.earth.28.1.211
Yuan, J. G., Zhang, W. Y., Pang, Z. S., et al., 2025. The Characteristics of Global Podiform Chromites and Prospecting Potential in China. Earth Science Frontiers, 32(6): 473-496 (in Chinese with English abstract).
Zeng, G., Ma, A. L., Wu, P. Y., et al., 2026. Sedimentary-Type Chromite in the Dongqiao Area, Xizang: A New Exploration Direction. Acta Geologica Sinica, 100(1): 358-362(in Chinese with English abstract).
Zeng, Y. C., Xu, J. F., Chen, J. L., et al., 2018. Geochronological and Geochemical Constraints on the Origin of the Yunzhug Ophiolite in the Shiquanhe-Yunzhug-Namu Tso Ophiolite Belt, Lhasa Terrane, Tibetan Plateau. Lithos, 300: 250-260. https://doi.org/10.1016/j.lithos.2017.11.025
Zhang, K. J., Xia, B., Zhang, Y. X., et al., 2014. Central Tibetan Meso-Tethyan Oceanic Plateau. Lithos, 210: 278-288. https://doi.org/10.1016/j.lithos.2014.09.004
Zhai, Q. G., Tang, Y., Hu, P. Y., et al., 2024. Induced Subduction Initiation near an Ultra-Slow Spreading Ridge: A Case Study from the Beila Ophiolite in the North-Central Tibetan Plateau. Gondwana Research, 135: 1-16. https://doi.org/10.1016/j.gr.2024.07.019
Zhai, Q. G., Tang, Y., Hu, P. Y., et al., 2026. A Newly Discovered Ophiolite-Type Chromitite in the Dawei Area in Shuanghu County, Northern Tibetan Plateau, China. Acta Geologica Sinica, 100(1): 354-357(in Chinese).
Zhai, M. G., Wu, F. Y., Hu, R. Z., et al., 2019. Critical Metal Mineral Resources: Current Research Status and Scientific Issues. Bulletin of National Natural Science Foundation of China, 33(2): 106-111 (in Chinese with English abstract).
Zheng, Y. Y., He, J. S., Li, W. J., et al., 2003. Regional Geological Survey Report of the Zigetang Co Sheet (1: 250 000). National Geological Archives of China, Beijing (in Chinese).
Zhou, S., Mo, X. X., Dong, G. C., et al., 2004. ⁴⁰Ar-³⁹Ar Geochronology of Cenozoic Linzizong Volcanic Rocks from Linzhou Basin, Tibet, China, and Their Geological Implications. Chinese Science Bulletin, 49(18): 1970. https://doi.org/10.1360/03wd0511
鲍佩声, 2009. 再论蛇绿岩中豆荚状铬铁矿的成因: 质疑岩石/熔体反应成矿说. 地质通报, 28(12): 1741-1761.
曹楚奇, 杨经绥, 杨胜标, 等, 2022. 西藏班公湖‒怒江缝合带中段东巧豆荚状铬铁矿特征及构造背景. 岩石学报, 38(11): 3391-3410.
李观龙, 杨经绥, 薄容众, 等, 2019. 西藏班公湖‒怒江缝合带东段丁青蛇绿岩中的铬铁矿: 产出特征与类型. 中国地质, 46(1): 1-20.
汪明洲, 程立人, 1980. 藏北东巧‒江错地区中生代地层的新发现和新认识. 吉林大学学报: 地球科学版, 10(3): 14-20.
王希斌, 鲍佩声, 1987. 豆荚状铬铁矿床的成因——以西藏自治区罗布莎铬铁矿床为例. 地质科学, 22(2): 166-181.
谢慧丹, 龚小晗, 何亮, 等, 2025. 班公湖‒怒江缝合带蛇绿岩特征对比与铬铁矿的前景讨论. 地质学报, 99(11): 3664-3686.
熊盛青, 杨海, 范振宇, 等, 2024. 基于航磁资料的中国蛇绿岩带研究. 地质学报, 98(3): 725-757.
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.
袁建国, 张万益, 庞振山, 等, 2025. 全球豆荚状铬铁矿资源特征与我国找矿潜力分析. 地学前缘, 32(6): 473-496.
曾罡, 马安林, 吴鹏宇, 等, 2026. 西藏东巧地区沉积型铬铁矿: 一个新的找矿方向. 地质学报, 100(1): 358-362.
翟庆国, 唐跃, 胡培远, 等, 2026. 西藏北部双湖县达威地区发现蛇绿岩型铬铁矿. 地质学报, 100(1): 354-357.
翟明国, 吴福元, 胡瑞忠, 等, 2019. 战略性关键金属矿产资源: 现状与问题. 中国科学基金, 33(2): 106-111.
郑有业, 何建社, 李维军, 等, 2003. 兹格塘错幅1∶25万区域地质调查报告. 北京: 全国地质资料馆.