云南普朗斑岩铜矿晚三叠世构造控矿条件

doi:10.13686/j.cnki.dzyzy.2021.02.003

Abstract
Figure/Table
References
Related Citation (15)

Download: PDF (823 KB) HTML (1 KB)
Export: BibTeX | EndNote (RIS)

Abstract Pulang copper deposit is of a super-large porphyry type in the eastern Yidun island arc polymetallic ore belt with frequent tectonic magmatic activities and significant superposition of fissure structure and ore forming-ore controlling conditions. However, the research degree is weak. Based on the comprehensive study of tectonic petrography of tunnels in Pulang copper orefield, combined with the regional metallogenic tectonic setting, the paper determines the macroscopic characteristics of folds and faults, and analyzes the joints/fissures in the typical levels. The results show that the mineralization of porphyry copper deposit during the closure of Paleo-Tethys Ocean is closely related to the Late Triassic tectonic evolution and magmatic activity, with Pulang copper deposit formed in subduction orogeny stage. The regional deep faults control the sedimentary formation and magmatite distribution in the orefield. The depositis is generally occurred in the core of Pulang antiform. The secondary NEE- and NE-trending faults control the development of ore-bearing porphyry and joints/fissures, while the ore/mineralized bodies occur at the junction of two groups of faults. The tension joint-dominated compound joint system provides passage and storage space for ore-bearing hydrothermal fluid migration, diffusion and enrichment. The development degree of fissures is positively correlated with copper mineralization. By studying the characteristics of magmatic intrusion-tectonic fissure system and ore-controlling rule in the orefield, it is considered that the hydrothermal vein ore/mineralized bodies are strictly controlled by the reformation and enrichment of tectonic and fissure system, and the site where fissure structure is well-developed is favorable target for vein ore prospecting.

Key words： porphyry copper deposit structure ore forming-ore controlling condition Late Triassic Yunnan Province

Received: 28 April 2020

PACS:	P618.41
	P613

	Service

	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors
	WU Lian-rong
	ZHAI Jian-jun
	YU Can
	SHI Bao-sheng
	LI Jin-lin
	YANG Dong

Cite this article:

WU Lian-rong,ZHAI Jian-jun,YU Can等. LATE TRIASSIC ORE-CONTROLLING STRUCTURES OF PULANG PORPHYRY COPPER DEPOSIT IN YUNNAN PROVINCE[J]. GEOLOGY AND RESOURCES, 2021, 30(2): 126-135.

URL:

http://manu25.magtech.com.cn/Jweb_dzyzy/EN/10.13686/j.cnki.dzyzy.2021.02.003 OR http://manu25.magtech.com.cn/Jweb_dzyzy/EN/Y2021/V30/I2/126

[1]	侯增谦, 杨志明. 中国大陆环境斑岩型矿床:基本地质特征、岩浆热液系统和成矿概念模型[J]. 地质学报, 2009, 83(12):1779-1817. Hou Z Q, Yang Z M. Porphyry deposits in continental settings of China:geological characteristics, magmatic-hydrothermal system, and metallogenic model[J]. Acta Geologica Sinica, 2009, 83(12):1779-1817.
[2]	罗照华, 卢欣祥, 陈必河, 等. 碰撞造山带斑岩型矿床的深部约束机制[J]. 岩石学报, 2008, 24(3):447-456. Luo Z H, Lu X X, Chen B H, et al. The constraints from deep processes on the porphyry metallogenesis in collisional orogens[J]. Acta Petrologica Sinica, 2008, 24(3):447-456.
[3]	芮宗瑶, 张立生, 陈振宇, 等. 斑岩铜矿的源岩或源区探讨[J]. 岩石学报, 2004, 20(2):229-238. Rui Z Y, Zhang L S, Chen Z Y, et al. Approach on source rock or source region of porphyry copper deposits[J]. Acta Petrologica Sinica, 2004, 20(2):229-238.
[4]	刘江涛, 杨立强, 吕亮. 中甸普朗还原性斑岩型铜矿床:矿物组合与流体组成约束[J]. 岩石学报, 2013, 29(11):3914-3924. Liu J T, Yang L Q, Lü L. Pulang reduced porphyry copper deposit in the Zhongdian area, Southwest China:constrains by the mineral assemblages and the ore-forming fluid compositions[J]. Acta Petrologica Sinica, 2013, 29(11):3914-3924.
[5]	祝向平, 陈华安, 马东方, 等. 西藏波龙斑岩铜金矿床钾长石和绢云母40Ar/39Ar年龄及其地质意义[J]. 矿床地质, 2013, 32(5):954-962. Zhu X P, Chen A H, Ma D F, et al. 40Ar/39Ar dating of hydrothermal K-feldspar and hydrothermal sericite from Bolong porphyry Cu-Au deposit in Tibet[J]. Mineral Deposits, 2013, 32(5):954-962.
[6]	冷成彪, 张兴春, 秦朝建, 等. 滇西北雪鸡坪斑岩铜矿流体包裹体初步研究[J]. 岩石学报, 2008, 24(9):2017-2028. Leng C B, Zhang X C, Qin C J, et al. Study of fluid inclusions in quartz veinlets in the Xuejiping porphyry copper deposit, Northwest Yunnan, China[J]. Acta Petrologica Sinica, 2008, 24(9):2017-2028.
[7]	曾普胜, 侯增谦, 李丽辉, 等. 滇西北普朗斑岩铜矿床成矿时代及其意义[J]. 地质通报, 2004, 23(11):1127-1131. Zeng P S, Hou Z Q, Li L H, et al. Age of the Pulang porphyry copper deposit in NW Yunnan and its geological significance[J]. Geological Bulletin of China, 2004, 23(11):1127-1131.
[8]	李文昌, 刘学龙, 曾普胜, 等. 云南普朗斑岩型铜矿成矿岩体的基本特征[J]. 中国地质, 2011, 38(2):403-414. Li W C, Liu X L, Zeng P S, et al. The characteristics of metallogenic rocks in the Pulang porphyry copper deposit of Yunnan Province[J]. Geology in China, 2011, 38(2):403-414.
[9]	刘学龙, 李文昌, 尹光侯, 等. 云南格咱岛弧普朗斑岩型铜矿年代学、岩石矿物学及地球化学研究[J]. 岩石学报, 2013, 29(9):3049-3064. Liu X L, Li W C, Yin G H, et al. The geochronology, mineralogy and geochemistry study of the Pulang porphyry copper deposits in Geza arc of Yunnan Province[J]. Acta Petrologica Sinica, 2013, 29(9):3049-3064.
[10]	曹殿华, 王安建, 李文昌, 等. 普朗斑岩铜矿岩浆混合作用:岩石学及元素地球化学证据[J]. 地质学报, 2009, 83(2):166-175. Cao D H, Wang A J, Li W C, et al. Magma mixing in the Pulang porphyry copper deposit:evidence from petrology and element geochemistry[J]. Acta Geologica Sinica, 2009, 83(2):166-175.
[11]	王守旭, 张兴春, 秦朝建, 等. 滇西北中甸普朗斑岩铜矿流体包裹体初步研究[J]. 地球化学, 2007, 36(5):467-478. Wang S X, Zhang X C, Qin C J, et al. Fluid inclusions in quartz veins of Pulang porphyry copper deposit, Zhongdian, northwestern Yunnan, China[J]. Geochimica, 2007, 36(5):467-478.
[12]	曹康, 许继峰, 陈建林, 等. 云南普朗超大型斑岩铜矿床含矿斑岩成因及其成矿意义[J]. 矿床地质, 2014, 33(2):307-322. Cao K, Xu J F, Chen J L, et al. Origin of porphyry intrusions hosting superlarge Pulang porphyry copper deposit in Yunnan Province:implications for metallogenesis[J]. Mineral Deposits, 2014, 33(2):307-322.
[13]	庞振山, 杜杨松, 王功文, 等. 云南普朗复式岩体锆石U-Pb年龄和地球化学特征及其地质意义[J]. 岩石学报, 2009, 25(1):159-165. Pang Z S, Du Y S, Wang G W, et al. Single-grain zircon U-Pb isotopic ages, geochemistry and its implication of the Pulang complex in Yunnan Province, China[J]. Acta Petrologica Sinica, 2009, 25(1):159-165.
[14]	冷成彪, 张兴春, 王守旭, 等. 云南中甸地区两个斑岩铜矿容矿斑岩的地球化学特征——以雪鸡坪和普朗斑岩铜矿床为例[J]. 矿物学报, 2007, 27(3):414-422. Leng C B, Zhang X C, Wang S X, et al. Geochemical characteristics of porphyry copper deposits in the Zhongdian area, Yunnan as exemplified by the Xuejiping and Pulang porphyry copper deposits[J]. Acta Mineralogica Sinica, 2007, 27(3):414-422.
[15]	刘学龙, 李文昌, 张娜, 等. 滇西北普朗斑岩铜矿与成矿有关的花岗岩与全球埃达克岩的对比:大数据研究的初步结果[J]. 岩石学报, 2018, 34(2):289-302. Liu X L, Li W C, Zhang N, et al. Comparative study on mineralization-related granite of Pulang porphyry copper deposit in northwestern Yunnan and global adakite:The preliminary results of big data research[J]. Acta Petrologica Sinica, 2018, 34(2):289-302.
[16]	孙贵荣, 董建春. 香格里拉欠虽铜铁矿床地质特征及成矿预测[J]. 云南地质, 2009, 28(3):263-267. Sun G R, Dong J C. The geological characteristics of Qiansui Cu-Fe deposit in Xianggelila and metallogenetic prognosis[J]. Yunnan Geology, 2009, 28(3):263-267.
[17]	曾普胜, 王海平, 莫宣学, 等. 中甸岛弧带构造格架及斑岩铜矿前景[J]. 地球学报, 2004, 25(5):535-540. Zeng P S, Wang H P, Mo X X, et al. Tectonic setting and prospects of porphyry copper deposits in Zhongdian island arc belt[J]. Acta Geoscientica Sinica, 2004, 25(5):535-540.
[18]	侯增谦, 杨岳清, 曲晓明, 等. 三江地区义敦岛弧造山带演化和成矿系统[J]. 地质学报, 2004, 78(1):109-120. Hou Z Q, Yang Y Q, Qu X M, et al. Tectonic evolution and mineralization systems of the Yidun arc orogen in Sanjiang Region, China[J]. Acta Geologica Sinica, 2004, 78(1):109-120.
[19]	任江波, 许继峰, 陈建林, 等. "三江"地区中甸弧普朗成矿斑岩地球化学特征及其成因[J]. 岩石矿物学杂志, 2011, 30(4):581-592. Ren J B, Xu J F, Chen J L, et al. Geochemistry and petrogenesis of Pulang porphyries in Sanjiang region[J]. Acta Petrologica et Mineralogica, 2011, 30(4):581-592.
[20]	侯增谦, 曲晓明, 周继荣, 等. 三江地区义敦岛弧碰撞造山过程:花岗岩记录[J]. 地质学报, 2001, 75(4):484-497. Hou Z Q, Qu X M, Zhou J R, et al. Collision-orogenic processes of the Yidun arc in the Sanjiang region:record of granites[J]. Acta Geologica Sinica, 2001, 75(4):484-497.
[21]	李艳军, 魏俊浩, 陈华勇, 等. 义敦岛弧带夏塞早白垩世A型花岗岩成因:锆石U-Pb年代学、地球化学及Hf同位素制约[J]. 大地构造与成矿学, 2014, 38(4):939-953. Li Y J, Wei J H, Chen H Y, et al. Petrogenesis of the Xiasai Early Cretaceous A-type granite from the Yidun island arc belt, SW China:constraints from zircon U-Pb age, geochemistry and Hf isotope[J]. Geotectonica et Metallogenia, 2014, 38(4):939-953.
[22]	邓军, 王长明, 李龚健, 等. 复合成矿系统理论:揭开西南特提斯成矿之谜的关键[J]. 岩石学报, 2019, 35(5):1303-1323. Deng J, Wang C M, Li G J, et al. The theory of composite metallogenic system:key of recovering metallogenic mystery in the SW Tethys[J]. Acta Petrologica Sinica, 2019, 35(5):1303-1323.
[23]	曾普胜, 李文昌, 王海平, 等. 云南普朗印支期超大型斑岩铜矿床:岩石学及年代学特征[J]. 岩石学报, 2006, 22(4):989-1000. Zeng P S, Li W C, Wang H P, et al. The indosinian Pulang superlarge porphyry copper deposit in Yunnan, China:petrology and chronology[J]. Acta Petrologica Sinica, 2006, 22(4):989-1000.
[24]	曾普胜, 莫宣学, 喻学惠, 等. 滇西北中甸斑岩及斑岩铜矿[J]. 矿床地质, 2003, 22(4):393-400. Zeng P S, Mo X X, Yu X H, et al. Porphyries and porphyry copper deposits in Zhongdian area, Northwestern Yunnan[J]. Mineral Deposits, 2003, 22(4):393-400.
[25]	郭欣, 杜杨松, 庞振山, 等. 云南普朗斑岩铜矿蚀变带成矿流体特征及其成矿意义[J]. 现代地质, 2009, 23(3):465-471. Guo X, Du Y S, Pang Z S, et al. Characteristics of the ore-forming fluids in Alteration zones of the Pulang porphyry cupper deposit in Yunnan Province and its metallogenic significance[J]. Geoscience, 2009, 23(3):465-471.
[26]	赵文津. 大型斑岩铜矿成矿的深部构造岩浆活动背景[J]. 中国地质, 2007, 34(2):179-205. Zhao W J. Deep tectono-magmatic setting for metallogenesis of large porphyry copper deposits[J]. Geology in China, 2007, 34(2):179-205.
[27]	姚春亮, 陆建军, 郭维民, 等. 斑岩铜矿若干问题的最新研究进展[J]. 矿床地质, 2007, 26(2):221-229. Yao C L, Lu J J, Guo W M, et al. The latest advances in researches on porphyry copper deposits[J]. Mineral Deposits, 2007, 26(2):221-229.
[28]	申萍, 潘鸿迪. 中亚成矿域斑岩铜矿床基本特征[J]. 岩石学报, 2015, 31(2):315-332. Shen P, Pan H D. Characteristics of the porphyry Cu deposits in the central Asia metallogenic domain[J]. Acta Petrologica Sinica, 2015, 31(2):315-332.
[29]	尹大胜, 方维萱, 郭玉乾. 云南东川铜矿田面山-四棵树成矿带裂隙构造控矿规律[J]. 金属矿山, 2019, 48(5):117-123. Yin D S, Fang W X, Guo Y Q. Metallogenic regularity of fracture structure of Mianshan-Sikeshu metallogenic belt in Dongchuan copper orefield[J]. Metal Mine, 2019, 48(5):117-123.