Journal of Jilin University(Earth Science Edition) ›› 2016, Vol. 46 ›› Issue (2): 412-424.doi: 10.13278/j.cnki.jjuese.201602110

Previous Articles     Next Articles

Geological Characteristics, Genesis, and Its Prospecting Exploration Enlightenment of Lanzhichang Iron Deposits in the Emeishan Large Igneous Province

Zeng Linggao1,2, Zhang Jun2, Sun Teng2, Li Bin1, Zhu Guanghui1, Jia Zichao1, Fang Quan1, Chen Genghu3   

  1. 1. No. 9 Geological Brigade, Xinjiang Bureau of Geology and Mineral Resources, Urumqi 830000, China;
    2. Faculty of Earth Resources, China University of Geosciences, Wuhan 430074, China;
    3. Metallurgical and Geological Exploration Institute of Sichuan Province, Chengdu 610051, China
  • Received:2015-10-12 Published:2016-03-26
  • Supported by:

    Supported by the Crisis Mines Prospecting Special Projects of China(20109904)

PDF (PC)

394

Abstract:

Lanzhichang iron deposit is the first medium-scaled iron deposit ascertained in a basalt construction of the Emeishan large igneous province. The deposit has a close spatial-temporal and genesis relationship with the basalt construction that is significantly of synsedimentary stratabound mineralization characteristics. The orebodies mainly occurred in the contact zone between the basaltic breccia basalt and the compact massive basalt of the lower section of Emeishan basalt controlled by Kuangshanliangzi caldera structure with multi-layers, and the ores developed fabric structure such as strawberry-like structure, rhythmic and laminar structures, banded structure, dense massive structure, rope structures, brecciated structure and so on, as well as iron tuberculosis and iron jasper. The major and trace elements of rock and ore show that the mineralization was affected by the hydrothermal sedimentary, magmatic evolution following the Fenner differentiation trend. The geological and geochemical characteristics indicate that Lanzhichang iron deposit is a continental syndepositional iron ore deposit with volcanic eruption or overflow. The discovery of this new type of iron deposit is a breakthrough to the ideological restraint in China that no such scaled iron deposit can be found in an igneous area. It provides a lot of inspirations and references for looking for iron ore in similar geological environments.

Key words: prospecting exploration enlightenment, Lanzhichang iron deposit, geological characteristics, deposits genesis, Emeishan large igneous province, basalt

CLC Number: 

  • P618.31

[1] Xu Yigang,He Bin,Chung S L,et al.Geologic,Geochemical and Geophysical Consequences of Plume Involvement in the Emeishan Flood-Basalt Province[J].Geology,2004,32:917-920.

[2] 宋谢炎,张成江,胡瑞忠,等.峨眉火成岩省岩浆矿床成矿作用与地幔柱动力学过程的耦合关系[J].矿物岩石,2005,25(4):35-44. Song Xieyan,Zhang Chengjiang,Hu Ruizhong,et al. Ucnctic of Magmatic Deposits in the Emeishan Large Lgncous Province with Dynamics of Mantle Plume[J]. Journal Mineralogy Petrology,2005,25(4):35-44.

[3] 刘家铎,张成江,刘显凡,等.攀西地区金属成矿系统[M].北京:地质出版社,2007. Liu Jiaduo,Zhang Chengjiang,Liu Xianfan,et al. Metallogcnic Regularity and Prospecting of Southwestern Margin of the Yangtze Platform[M].Beijing:Geological Publishing House,2007.

[4] 王晓刚,黎荣,蔡俐鹏,等.川滇黔峨眉山玄武岩铜矿成矿地质特征、成矿条件及找矿远景[J].地质学报,2010,30(2):174-182. Wang Xiaogang,Li Rong,Cai Lipeng,et al.Geological Features,Ore-Forming Conditions and Prospecting Potential of the Emeishan Basalt-Hosted Cu Deposits in the Sichuan-Yunnan-Guizhou Border Region[J]. Acta Geologica Sinica,2010,30(2):174-182.

[5] 徐义刚,梅厚钧,许继峰,等.峨眉山大火成岩省中两类岩浆分异趋势及其成因[J].科学通报,2003,48(4):383-387. Xu Yigang,Mei Houjun,Xu Jifeng,et al. Differentiation Trends and Its Causes of Two Types Magma of Emeishan Large Igneous Provinces[J]. Chinese Science Bulletin,2003,48(4):383-387.

[6] 曾令高.四川盐源平川铁矿床成矿规律研究[D].武汉:中国地质大学,2011. Zeng Linggao.A Study on Pingchuang Iron Deposit in Metallogenic Regularity of Yanyuan County,Sichuan Province[D].Wuhan:China University of Geosciences,2011.

[7] 曾令高,张均,孙腾,等.川南平川地区镁铁质超镁铁质岩锆石U-Pb年龄及其地质意义[J].地球科学:中国地质大学学报,2013,38(6):1197-1213. Zeng Iinggao,Zhang Jun,Sun Teng,et al.Zircon U-Pb Age of Mafic-Ultramafic Rock from Pingchuan Region in Southern Sichuan and Its Geological Implications[J].Earth Science:Journal of China University of Geosciences,2013,38(6):1197-1213.

[8] 徐义刚,钟孙霖.峨眉山大火成岩省:地幔柱活动的证据及其熔融条件[J].地球化学,2001, 30(1):1-9. Xu Yigang,Zhong Sunlin.The Emeislmn Large Igneous Province:Evidence for Mantle Plume Activity and Melting Conditions[J].Geochimica,2001, 30(1):1-9.

[9] 钟宏,徐桂文,朱维光,等.峨眉山大火成岩省太和花岗岩的成因及构造意义[J].矿物岩石地球化学通报,2009,28(2):99-110. Zhong Hong,Xu Guiwen,Zhu Weiguang,et al. Petrogenesis of the Taihe Granites in the Emeishan Large Igneous Province and Its Tectonic Implications[J]. Bulletin of Mineralogy,Petrology and Geochemistry,2009,28(2):99-110.

[10] 刘朝基,曾绪伟,金久堂,等.康滇地区基性超基性岩[M].重庆:重庆出版社,1998. Liu Chaoji,Zeng Xuwei,Jin Jiutang,et al. Mafic Rocks and Ultramafic Rocks of Kangdian Regional[M].Chongqing:Chongqing Publishing House,1998.

[11] 杨时惠,阙梅英.西昌滇中地区磁铁矿特征及其矿床成因[M].重庆:重庆出版社,1987. Yang Shihui,Que Meiying. Magnetite Characteristics and Its Deposit Genesis in the Xichang-Central Yunnan Area[M].Chongqing:Chongqing Publishing House,1987.

[12] 沈苏,金明霞,陆元法.西昌滇中地区主要矿产成矿规律及找矿方向[M].重庆:重庆出版社,1988. Shen Su,Jin Mingxia,Lu Yuanfa.Mineralization Deposits in Laws and Prospect for Main Ore Deposits in the Xichang-Central Yunnan Area[M].Chongqing:Chongqing Publishing House,1988.

[13] 孙腾. 四川平川铁矿成矿规律研究[D].武汉:中国地质大学,2012. Sun Teng.The Study on Metallogenic Regularity of Pingchuan Iron Deposit in Sichuan Province[D].Wuhan:China University of Geosciences,2012.

[14] 膝吉文,魏斯禹.中国四川攀枝花西昌(攀西)裂谷的形成、演化与裂谷分类[J].大地构造与成矿学,1987,11(1):77-90. Teng Jiwen,Wei Siyu.The Formation, Evolution and Classification of the Panzhihua-Xichang(Pan-Xi) Tift[J].Geotectomica et Metallogemia,1987,11(1):77-90.

[15] Liu Wenhao,Zhang Jun,Sun Teng,et al.Low-Ti Iron Oxide Deposits in the Emeishan Large Igneous Province Related To Low-Ti Basalts and Gabbroic Intrusions[J]. Ore Geology Reviews,2015,65:180-197.

[16] 黎应书,秦德先,党玉涛,等.云南个旧锡矿的玄武岩成矿[J].吉林大学学报(地球科学版),2006,36(3):326-335. Li Yingshu,Qin Dexian,Dang Yutao,et al.Mineralizations in Basalts of the Gejiu Tin Deposit in Yunnan Province[J].Journal of Jilin University(Earth Science Edition),2006,36(3):326-335.

[17] 李绪俊,郗爱华,陈静.脉状金矿定位预测的关键:主控矿因素分析[J].吉林大学学报(地球科学版),2008,38(5):731-737. Li Xujun,Xi Aihua,Chen Jing.The Key to the Site Prediction of the Gold Lodes:Analysis on Major Ore Constraints[J].Journal of Jilin University(Earth Science Edition),2008,38(5):731-737.

[18] 刘秀铭,John S,蒋建中,等.磁赤铁矿的几种类型与特点分析[J].中国科学:地球科学,2010,40(5):592-602. Liu Xiuming,John Shaw,Jiang Jianzhong,et al.A-nalysis on Variety and Characteristics of Maghemite[J].Science China:Earth Sciences,2010,40(5):592-602.
[1] Yan Baizhong, Qiu Shuwei, Xiao Changlai, Liang Xiujuan. Potential Geothermal Fields Remote Sensing Identification in Changbai Mountain Basalt Area [J]. Journal of Jilin University(Earth Science Edition), 2017, 47(6): 1819-1828.
[2] Chen Feiran, Zhang Ying, Xu Zuxin, Tan Cheng, Zhou Xiaoxiao. Petroleum Geological Characteristics and Main Control Factors of Oil and Gas Accumulations in the Global Precambrian-Cambrian Petroliferous Basin [J]. Journal of Jilin University(Earth Science Edition), 2017, 47(4): 974-989.
[3] Wang Yan, Yang Xiaoping, Na Fuchao, Fu Junyu, Sun Wei, Yang Fan, Liu Yingcai, Zhang Guangyu, Song Weimin, Yang Yajun, Qian Cheng, Pang Xuejiao. Discovery of the Late Cambrian Intermediate-Basic Volcanic Rocks in Tahe, Northern Da Hinggan Mountain and Its Geological Significance [J]. Journal of Jilin University(Earth Science Edition), 2017, 47(1): 126-138.
[4] Pang Xuejiao, Song Weimin, Fu Junyu, Tao Nan. Metallogenic and Geological Characteristics and Prospecting Potential of Meng'entaolegai Multi Metal Metallogenic Area in Inner Mongolia [J]. Journal of Jilin University(Earth Science Edition), 2015, 45(2): 483-494.
[5] Li Zhenhong, Dong Shuwen, Qu Hongjie. Sedimentary Evidences of Jurassic Orogenic Process and Key Time Limit on the Northern Margin of North China Craton [J]. Journal of Jilin University(Earth Science Edition), 2014, 44(5): 1553-1574.
[6] You Minxin，Liu Jianmin. Application Status and Progress of Isotopic Geochemistry in Research of Emeishan Large Igneous Province (ELIP) [J]. Journal of Jilin University(Earth Science Edition), 2014, 44(4): 1231-1243.
[7] Li Xiang-wen,Yang Yan-chen,Wang Xian-zhong,Liu Zhi-jie,Gong Wei-guo. Geologic Characteristics and Metallogenic Tectonic Environment of the Baoxinggou Gold Deposit in Tahe,Heilongjiang Province [J]. Journal of Jilin University(Earth Science Edition), 2012, 42(6): 1700-1710.
[8] CAO Rui, MUHETAER Za-ri, CHEN Bin, LI De-wei, CAO Fu-gen, LIU De-min. Geochemistry and Sr-Nd Isotopic Characteristics of the Carboniferous Volcanic Rocks from the Eastern Tianshan Suture Zone and Tectonic Implications [J]. J4, 2012, 42(2): 400-409.
[9] REN Yun-sheng, JU Nan, ZHAO Hua-lei, WANG Hui, LU Xiu-quan, WU Chang-zhi. Geological Characteristics and Fluid Inclusions of Wudaogou Lode Scheelite Deposit in Eastern Yanbian, Jilin Province [J]. J4, 2011, 41(6): 1736-1744.
[10] YAN Zai-fei, HUANG Zhi-long, CHEN Mi, ZHOU Jia-xi, ZHAO Zheng, DING Wei. Two Distinct Mantle Sources for High-Ti Basalts in the Emeishan Overfall Basalt Province [J]. J4, 2010, 40(6): 1311-1322.
[11] ZHANG Zhi-bin, LI Jian-hua, HUANG Chao-yi, LIU Hong, DIAO Yan-hui. Study on Genesis and Ore Prospecting of Dongshengmiao Deposit in Inner Mongolia [J]. J4, 2010, 40(4): 791-800.
[12] LIAO Zhen-wen. Comparison of Geological Characteristics of the Copper and Gold Deposits Related to Emeishan Basalt in the Borders Area Between Yunnan and Guizhou [J]. J4, 2010, 40(4): 821-827.
[13] XIA Xue-hui, YUAN Jia-zhong, XI Guo-qiang, LIANG Zhong-peng. Geochemistry of Complex Rocks and Characteristics of Daxigou Iron-Phosphorite Deposits, Xinjiang [J]. J4, 2010, 40(4): 879-885.
[14] ZHONG Yu-ying, XU Xi-hang. Characteristics of Plume-Related A-Type Granites: An Example from the Emeishan Large Igneous Province [J]. J4, 2009, 39(5): 828-838.
[15] FU Chang-liang, SUN De-you, WEI Hong-yan, GOU Jun. Research on the Geochemical Difference of the Cenozoic Basalts in Yitong Area [J]. J4, 2009, 39(3): 446-454.
Viewed
Full text


Abstract

Cited
  Shared   
  Discussed   
No Suggested Reading articles found!
Copyright © Journal of Jilin University(Earth Science Edition), All Rights Reserved.
Tel: +86-431-88502374；13756165364　E-mail: xuebao1956@jlu.edu.cn
Powered by Beijing Magtech Co. Ltd