|
|
秦岭地区石墨资源分布与成矿主控因素
|
Abstract:
秦岭地区是我国石墨矿资源丰富的主要分布区之一，目前该地区石墨资源分布及成矿机理的研究尚较薄弱。以秦岭造山带已发现的数十处石墨矿床/点/远景区的基础资料为依据，通过典型矿床野外地质调查及测试分析，运用地质综合分析方法，研究结果表明：秦岭地区石墨资源分为晶质石墨矿床和隐晶质石墨矿床两大类，呈三大矿带展布。在秦岭地区多期构造运动叠加下，区域变质作用控制形成了鳞片晶质石墨矿床；在岩浆热力与构造应力双重作用下，煤、碳质泥页岩变质形成隐晶质石墨矿床。
Qinling area is one of main repository distribution provinces of large scale graphite resource. At present, the research on the distribution and metallogenic mechanism of graphite resources in this area is still weak. Based on the basic material of dozens graphite deposits, spot, play discovered in Qinling orogen, by means of outdoors geologic survey and specimen examination with analysis of some typical deposits, applying geologic multidisciplinary analysis method. The results show that the graphite resources in Qinling area can be divided into crystalline graphite deposits and cryptocrystalline graphite deposits, which is distributed in three ore belts. Under the superposition of multiple tectonic movements in Qinling area, regional metamorphism controlled the formation of large scale crystalline graphite deposits. Under the dual action of magmatic heat and tectonic stress, coal and carbonaceous shale metamorphosed to form cryptocrystalline graphite deposit.
| [1] | 孙升林, 吴国强, 曹代勇, 宁树正, 乔军伟, 朱华雄, 韩亮, 朱世飞, 苗琦, 周兢, 刘亢, 李聪聪, 陈寒勇, 蔡旭梅. 煤系矿产资源及其发展趋势[J]. 中国煤炭地质, 2014, 26(11): 1-11. |
| [2] | 高天明, 陈其慎, 于汶加. 中国天然石墨未来需求与发展展望[J]. 资源科学, 2015, 37(5): 1059-1067. |
| [3] | 曹代勇, 张鹤, 董业绩, 吴国强, 宁树正, 莫佳峰, 李霞. 煤系石墨矿产地质研究现状与重点方向[J]. 地学前缘, 2017, 24(5): 317-327. |
| [4] | 颜玲亚, 高树学, 陈正国, 焦丽香, 孙莉, 刘艳飞, 周雯. 中国石墨矿成矿特征及成矿区带划分[J]. 中国地质, 2018, 45(3): 421-440. |
| [5] | Robinson, G.R., Hammarstrom Jr., J.M. and Olson, D.W. (2017) Chapter J: Graphite. In: Schulz, K.J., DeYoung, J.H., Seal, R.R. and Bradley, D.C., Eds., Critical Mineral Resources of the United States—Economic and Environmental Geology and Prospects for Future Supply, U.S. Geological Survey Professional Paper, 1802, J1-J24. |
| [6] | 张国伟, 郭安林, 董云鹏, 姚安平. 关于秦岭造山带[J]. 地质力学学报, 2019, 25(5): 746-768. |
| [7] | 王力, 樊俊雷, 冯杨伟. 石墨资源现状及中国石墨矿床分布[J]. 中国煤炭地质, 2017, 29(7): 5-9. |
| [8] | Sun, L., Xu, C.P., Xiao, K.Y., Zhu, Y.S. and Yan, L.Y. (2018) Geological Characteristics, Metallogenic Regularities and the Exploration of Graphite Deposits in China. China Geology, 1, 425-434.
https://www.sciencedirect.com/science/article/pii/S2096519219300576
https://doi.org/10.31035/cg2018044 |
| [9] | Feng, Y.W., Qu, H.J., Yang, C.Y. and Lv, L.S. (2015) Distribution Characteristics and Metallogenic Regularity of Graphite Deposits in Qinling Orogen, China. Acta Geologica Sinica (English Edition), 89, 1244-1263.
https://doi.org/10.1111/1755-6724.12526 |
| [10] | 姜继圣, 刘祥. 中国早前寒武纪沉积变质型晶质石墨矿床[J]. 建材地质, 1992(5): 18-22.
http://www.cnki.com.cn/Article/CJFDTotal-LGFK199205002.htm |
| [11] | 陈衍景, 刘丛强. 中国北方石墨矿床及赋矿孔达岩系碳同位素特征及有关问题讨论[J]. 岩石学报, 2000, 16(2): 33-44. |
| [12] | Kreulen, R. (1987) Thermodynamic Calculations of the C-O-H System Applied to Fluid Inclusions: Are Fluid Inclusions Unbiased Samples of Ancient Fluids? Chemical Geology, 61, 59-64.
https://doi.org/10.1016/0009-2541(87)90027-1 |
| [13] | Ortega, L., Millward, D., Luque, F.J., Barrenechea, J.F., Beyssac, O., Huizenga, J.M., Rodas, M. and Clarke, S.M. (2010) The Graphite Deposit at Borrowdale (UK): A Catastrophic Mineralizing Event Associated with Ordovician Magmatism. Geochimica et Cosmochimica Acta, 74, 2429-2449. https://doi.org/10.1016/j.gca.2010.01.020 |
| [14] | Zhang, G.W., Dong, Y.P. and Lai, S.C. (2004) Mianlue Tectonic Zone and Mianlue Suture Zone on Southern Margin of Qinling-Dabie Orogenic Belt. Science in China (Series D), 47, 300-316. https://doi.org/10.1360/02YD0526 |
| [15] | 张国伟, 孟庆任, 于在平, 孙勇, 周鼎武, 郭安林. 秦岭造山带的造山过程及其动力学特征[J]. 中国科学(D辑: 地球科学), 1996, 26(3): 193-200. |
| [16] | 张国伟, 张本仁, 袁学诚. 秦岭造山带与大陆动力学[M]. 北京: 科学出版社, 2001: 1-729. |
| [17] | 赵德政. 陕西省的煤种分布及其变质因素[J]. 西安矿业学院学报, 1984(1): 26-37. |
| [18] | 马健, 吕新彪, 但荣飞, 朱丁云, 卢飞, 袁波, 殷新. 西秦岭左家庄金矿成因研究: 来自黄铁矿微量元素及多元同位素地球化学的制约[J]. 地学前缘, 2019, 26(5): 146-162. |
| [19] | Dong, Y.P., Liu, X.M., Zhang, G.W., Chen, Q., Zhang, X.N., Li, W. and Yang, C. (2012) Triassic Diorites and Granitoids in the Foping Area: Constraints on the Conversion from Subduction to Collision in the Qinling Orogen, China. Journal of Asian Earth Sciences, 47, 123-142. https://doi.org/10.1016/j.jseaes.2011.06.005 |
| [20] | Mercier, J.L., Vergely, P., Yue, Q.Z., Ming, J.H., Bellier, O. and Yong, M.W. (2013) Structural Records of the Late Cretaceous-Cenozoic Extension in Eastern China and the Kinematics of the Southern Tan-Lu and Qinling Fault Zone (Anhui and Shaanxi Provinces, PR China). Tectonophysics, 582, 50-75. https://doi.org/10.1016/j.tecto.2012.09.015 |
