| Citation: |
CHEN Xiang-yang, LI Ya-zhi, ZHANG Yu-lian, SONG Zhong-bao, JIA Qun-zi. Chronological and Geological Significance of Narigongma Plagiogranite Porphyry in the North Part of the Sanjiang Region[J]. Northwestern Geology, 2013, 46(4): 49-56.
|
Chronological and Geological Significance of Narigongma Plagiogranite Porphyry in the North Part of the Sanjiang Region
-
Abstract
Located in the north part of the Sanjiang Region and composed of 6 small porphyry bodies, Narigongma porphyry belongs to high-K calc-alkaline series in petrochemistry. The REE diagram shows that the rock is enriched in LREE with rarely negative Eu anomaly. Zircon U-Pb dating method has determined for the first time that the diagenetic age of Narigongma plagioclase porphyry is about 41.0 0.18Ma in the Early Himalayan epoch. From the view of regional tectonic evolution, the formation of most granite ore bodies in the north part of the Sanjiang Region are closely related to the magmatic emplacement of Himalayan orogeny, as most of the isotopic ages concentrate in 21-66 Ma. Because Narigongma Cu-Mo deposit occurred in porphyry bodies, the granite porphyry has provided mineral sources for the deposit mineralization. Meanwhile, due to abundant occurrence of intermediate-acid magmatic bodies in the north part of the Sanjiang Region, the diagenetic age determination of Narigongma porphyry Cu-Mo deposit is of great theoretical and practical importance in porphyry Cu-Mo deposit prospecting. -
-
References
白云, 唐菊兴, 郭文铂, 等.纳日贡玛铜(钼)矿床地质特征及成矿作用初探[J].矿业快报, 2007, 23 (4): 75 -78. Bai Yun, Tang Juxing, Guo Wenbo, et al. The geological feature and the mineralization initially searches of Narigongma Cu(Mo) deposit[J]. Ore Industry Bulletin, 2007, 23 (4): 75 -78. 郭贵恩, 马彦青, 王涛, 等.纳日贡玛含矿斑岩体形成机制及其成矿模式分析[J].西北地质, 2010, 43(3):28-35. Guo Guien, Ma Yanqing, Wang Tao, et al. The Formation Mechanism and Mineralization Pattern of Ore-bearing Granite-porphyry in Narigongma[J]. Northwestern Geology, 2010, 43(3):28-35. 王召林, 杨志明, 杨竹森, 等. 纳日贡玛斑岩钼铜矿床:玉龙铜矿带的北延——来自辉钼矿Re-Os同位素年龄的证据[J].岩石学报, 2008, (3):503-510. Wang Zhaolin, Yang Zhiming, Yang Zhusen, et al. Narigongma porphery molybdenite copper deposit, northern extension of Yulong copper belt:evidence from the age of Re-Os isotope[J]. Acta Petrologica Sinica, 2008, (3):503-510. 陈建平, 唐菊兴, 陈勇, 等.西南三江北段纳日贡玛铜钼矿床地质特征与成矿模式[J].现代地质, 2008, 22(1):9-17. Chen Jianping, Tang Juxing, Chen Yong, et al. Geological Characteristics and Metallogenic Model of the Narigongma Copper-Molybdenum Deposit in the North Part of the Sanjiang Region, Southwest China[J]. Geoscience, 2008, 22(1):9-17. 宋忠宝, 李智佩, 任有祥, 等.北祁连山车路沟英安斑岩成岩时代及地质意义[J].地质科技情报, 2005(3):15-19. Song Zhongbao, Li Zhipei, Ren Youxiang, et al. Chronology and Geological significance of Chelugou dacite porphyry in North Qilian Mts[J].Geological Science and Technology Information, 2005(3):15-19. 宋忠宝, 任有祥, 李智佩, 等.北祁连山白山子花岗闪长岩成岩时代研究[J].地球学报, 2005, 26(增刊):84-86. Song Zhongbao, Ren Youxiang, Li Zhipei, et al. A Preliminay Study of the petrogenic age of granodiorite in baishanzhi, North Qilian Mts[J].Acta Geoscientica Sinica, 2005, 26(sup):84-86. 宋忠宝, 杜玉良, 李智明, 等.青海省矿产资源发育特征概述[J].地球科学与环境学报, 2009, 33(1), 30-33, 47. Song Zhongbao, Du Yuliang, Li Zhiming, et al. The Distributing Characteristics of Mineral Resources in Qinghai Province[J]. Journal of Earth Sciences and Environment, 2009, 33(1):30-33, 47. 李惠民, 李怀坤, 陆松年, 等. 用矿脉中热液锆石U-Pb定年确定东坪金矿的成矿时代[J]. 地球学报, 1997, 18(增刊):176-178. Li Huimin, Li Huaikun, Lu Songnian, et al. Gold metallogenetic age of Dongping Gold Deposit using method of U-Pb dating of hydrothermal zircon in mineral vein[J]. Acta Geoscientica Sinica, 1997, 18(sup.):176-178. 何世平, 李荣社, 王超, 等.祁连山西段甘肃肃北地区北大河岩群片麻状斜长角闪岩的形成时代[J].地质通报, 2010, 29(9):1275-1280. He Shiping, Li Rongshe, Wang Chao, et al. Geochronology of gneissic plagioclase-amphibolite from Beidahe Groupcomplex in western segment of Qilian Mountains, China[J]. Geological Bulletin of China, 2010, 29(9):1275-1280. 杨志明, 侯增谦, 杨竹森, 等. 2008.青海纳日贡玛斑岩钼(铜)矿床:岩石成因及构造控制[J].岩石学报, 2008, 24(3):489-502 Yang Zhiming, Hou Zengqian, Yang Zhushen, et al. Genesis of porphyries and tectonic controls on the Narigongma porphyry Mo(-Cu)deposit, southern Qinghai[J]. Acta Petrologica Sinica, 2008, 24(3), 489-502. 宋忠宝, 贾群子, 陈向阳, 等.三江北段纳日贡玛花岗闪长岩成岩时代的确定及地质意义[J].地质学报, 2011, 32(2):154-162. Song Zhongbao, Jia Qunkzi, Chen Xiangyang, el al.The Petrogenic age of Narigongma Granitic Diorte-porphyry in the Northern Part of the Sanjiang Ragion and Its Geological Implicatons[J].Acta Geoscieatica Sinica, 2011, 32(2):154-162. 栗亚芝, 宋忠宝, 杜玉良, 等.纳日贡玛斑岩型铜钼矿与玉龙斑岩铜矿成矿特征对比研究[J].西北地质, 2012, 45(1):149-158. Li yazhi, Song Zhongbao, Du Yuliang, et al.Metallogenic Characteristics Comparative Study of Narigongma porphyry copper-molybdenum Doposit and yulong porphyry Copper Deposit[J].Northwestern Geology, 2012, 45(1):149-158. Anderson T.Correction of common lead in U-Pb analyses that do not report 204Pb[J].Chem Geol.2002, 192:59-79. Black LP, Kamo Sl, Allen CM, et al.TEMORA 1:A new zircon standard for Phanerozoic U-Pb geochronology[J]. Chem. Geol., 2003.200:155-170. Jackson SE, Pearson NJ, Griffin WL et al.The application of laser ablation-inductively coupled plasma-mass spectronmetry to in situ U-Pb zircon geochronology[J].Chemical Geology, 2004, 211:47-69. Liu YS, Gao S, Hu ZC, et al.Continental and oceanic crust recycling-induced melt -peridotite interactions in the Trans -North China Orogen:U-Pb dating, Hf isotopes and trace elements in zircons from mantle xenoliths[J].Journal of Petrology, 2009, 51(1-2):537-571 Ludwig KR.User's manual for Isoplot/Ex, version 3.00. A Geochronological Toolkit for Microsoft Excel[J]. Berkeley Geochronology Center Special Publication, 2003(4):1-70. Claesson S V, Vertin, Bayanova H D.U-Pb zircon ages from a Devonian carbonatite dyke, Kola peninsula, Russia:a record of geological evolution from the Archaen to the Palaeozoic[J].Lithos, 2000, 51:95-108. -
Access History
Export File
Citation
CHEN Xiang-yang, LI Ya-zhi, ZHANG Yu-lian, SONG Zhong-bao, JIA Qun-zi. Chronological and Geological Significance of Narigongma Plagiogranite Porphyry in the North Part of the Sanjiang Region[J]. Northwestern Geology, 2013, 46(4): 49-56.
DownLoad: