[1]王 迪,郑 涛,张永胜,等.金厂沟辉绿玢岩的年代学、地球化学及地质意义[J].黑龙江科技大学学报,2021,31(05):569-577.[doi:10.3969/j.issn.2095-7262.2021.05.006 ]
 Wang Di,Zheng Tao,Zhang Yongsheng,et al.Geochronology, petrogeochemistry and geological significance of diabase porphyrite in Jinchanggou[J].Journal of Heilonhjiang Institute of Science and Technology,2021,31(05):569-577.[doi:10.3969/j.issn.2095-7262.2021.05.006 ]
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金厂沟辉绿玢岩的年代学、地球化学及地质意义()
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《黑龙江科技大学学报》[ISSN:2095-7266/CN:2301588/TD]

卷:
31
期数:
2021年05
页码:
569-577
栏目:
出版日期:
2021-09-30

文章信息/Info

Title:
Geochronology, petrogeochemistry and geological significance of diabase porphyrite in Jinchanggou
文章编号:
2095-7262(2021)05-0569-09 文献标志码:A
作者:
王 迪1 郑 涛2 张永胜3 孙金磊2 李嘉欣2
(1.吉林省有色金属地质勘查局六○二队 地质科, 吉林 白山 134300; 2.吉林大学 地球科学学院, 长春 130061; 3.国检珠宝培训中心, 北京 102628)
Author(s):
Wang Di1 Zheng Tao2 Zhang Yongsheng3 Sun Jinlei2 Li Jiaxin2
(1. Department of Geology, No.602 Team of Jilin Nonferrous Metal Geological Exploration Bureau, Baishan 134300, China; 2. College of Earth Science, Jilin University, Changchun 130061, China; 3. National Gemological Training Center, Beijing 102628, China)
关键词:
金厂沟金矿 地球化学 洋岛玄武岩 锆石U-Pb年龄 古亚洲洋构造域
Keywords:
Jinchanggou gold deposit petrogeochemistry oceanic island basalt zirconU-Pb dating Paleo-Asian Ocean tectonic domain
分类号:
P597; P588
DOI:
10.3969/j.issn.2095-7262.2021.05.006
文献标志码:
A
摘要:
为研究金厂沟金矿区辉绿玢岩的锆石LA-ICP-MS U-Pb年代学和岩石地球化学特征,分析金厂沟金矿区辉绿玢岩的成岩时代、岩石成因以及构造背景。结果表明:辉绿玢岩锆石U-Pb年龄为(220.3±1.2)Ma,属晚三叠世岩浆活动的产物; 地球化学性质显示辉绿玢岩具有较高的碱度率,属碱性岩类; 样品稀土元素配分曲线为右倾型,弱亏损Ti、Y、Nb、P、K,富集Ba、Ta、Pb等元素; La与Nb质量分数比值介于0.96~1.07,Zr与Ba质量分数比值介于0.24~0.26,显示其为软流圈来源的玄武质岩浆,样品较高的TiO2、K2O、P2O5和Zr质量分数显示其具有OIB型玄武岩的亲缘性。金厂沟辉绿玢岩形成于晚三叠纪碰撞造山后板片断离导致的伸展背景下,华北克拉通北缘东段仍受到古亚洲洋构造演化的控制。
Abstract:
This paper is an attempt to identify the zircon LA-ICP-MS U-Pb age and petrogeochemical characteristics of diabaseporphyrites in Jinchanggou gold deposit analyzing the geochronology, prtrogenesis, and tectonic setting of samples The results show that the zircon U-Pb age is(220.3±1.2)Ma, which belongs to the magmatic activity of Late Triassic. Geochemical properties show that diabaseporphyrite has a high basicity ratio and belongs to alkaline rocks. The REE distribution curve of the sample is right-inclined, meaning the weak depletion of Ti, Y, Nb, P, K and enrichment of Ba, Ta, and Pb. The La/Nb(0.96-1.07)and Zr/Ba(0.24-0.26)ratios indicate that basaltic magma originated from asthenosphere. The higher contents of TiO2, K2O, P2O5 and Zr are related to OIB type basalts. The study concludes that the Jinchanggou diabase porphyrite was formed under the extensional setting caused by plate fragmentation after the Late Triassic collision orogeni and the eastern segment of the northern margin of the North China Cratonis still remains controlled by the Paleo-Asian Ocean tectonic setting.

参考文献/References:

[1] 李翱鹏. 吉林东部和龙地区三叠纪侵入岩的岩石学、年代学和地球化学研究[D]. 长春: 吉林大学, 2018.
[2] 孙德有, 吴福元, 张艳斌, 等. 西拉木伦河—长春—延吉板块缝合带的最后闭合时间——来自吉林大玉山花岗岩体的证据[J]. 吉林大学学报(地球科学版), 2004(2): 174-181.
[3] Sun M D, Xu Y G, Wilde S A, et al. The Permian Dongfanghong island-arc gabbro of the Wandashan Orogen, NE China: implications for Paleo-Pacific subduction[J]. Tectonophysics, 2015, 659, 122-136.
[4] Yang H, Ge W C, Zhao G C, et al. Early Permian-Late Triassic granitic magmatism in the Jiamusi-Khanka Massif, eastern segment of the Central Asian Orogenic Belt and its implications[J]. Gondwana Research, 2015, 27: 1509-1533.
[5] Wang Z W, Pei F P, Xu W L, et al. Geochronology and geochemistry of Late Devonian and early Carboniferous igneous rocks of central Jilin Province, NE China: Implications for the tectonic evolution of the eastern Central Asian Orogenic Belt[J]. Journal of Asian Earth Sciences, 2015, 97: 260-278.
[6] Guo F, Li H X, Fan W M, et al. Early Jurassic subduction of the Paleo-Pacific Ocean in NE China: Petrologic and geochemical evidence from the Tumen mafic intrusive complex[J]. Lithos, 2015,(224/225): 46-60.
[7] Yuan H, Shan G, Liu X, et al. Accurate U-Pb age and trace element determinations of Zircon by laser ablation-inductively coupled plasma-mass spectrometry[J]. Geostandards and Geoanalytical Research, 2010, 28(3): 353-370.
[8] Sunss, McDonough W F. Chemical and isotopic systematics of oceanic basalts: Implications for mantle composition and processes[J]. Geological Society London Special Publications, 1989, 42(1): 313-345.
[9] 刘 锦, 刘正宏, 李世超, 等. 华北北缘东段开原地区三叠纪侵入岩年代学及岩石地球化学研究[J]. 岩石学报, 2016, 32(9): 2739-2756.
[10] 张 朋. 辽宁省东南部典型有色、贵金属矿床成矿特征、成因与成岩成矿地球动力学过程[D]. 长春: 吉林大学, 2018.
[11] 李 健. 辽西台里地区花岗质岩石特征及其地质意义[D]. 长春: 吉林大学, 2009.
[12] 郭娜欣, 刘善宝, 赵 正. 江西崇义铁木里钨铁矿区内辉绿玢岩的年代学、地球化学特征及地质意义[J]. 地球科学, 2021, 46(2): 460-473.
[13] Huang Y, Hawkesworth C, Smith I, et al. Geochemistry of late Cenozoic basaltic volcanism in Northland and Coromandel, New Zealand: implications for mantle enrichment processes[J]. Chemical Geology, 2000, 164(3/4): 219-238.
[14] 赵振华, 包志伟, 张伯友. 湘南中生代玄武岩类地球化学特征[J]. 中国科学(D辑:地球科学), 1998(S2): 7-14.
[15] Wang K, Plank T, Walker J D, et al. A mantle melting profile across the Basin and Range, SW USA[J]. Journal of Geophysical Research Solid Earth, 2002, 107(B1): 5-21.
[16] Frey F A, Walker N, Stakes D S, et al. Geochemical characteristics of basaltic glasses from the AMAR and FAMOUS axial valleys, Mid-Atlantic Ridge(36°~37°N): Petrogenetic implications[J]. Earth and Planetary Science Letters, 1993(115): 117-136.
[17] Litvak V D, Poma S. Geochemistry of mafic Paleocene volcanic rocks in the Valle del Cura region: Implications for the petrogenesis of primary mantle-derived melts over the Pampean flat-slab[J]. Journal of South American Earth Sciences, 2010, 29(3): 705-716.
[18] Mir A R, Alvi S H, Balaram V. Geochemistry of the mafic dykes in parts of the Singhbhum granitoid complex: Petrogenesis and tectonic setting[J]. Arabian Journal of Geosciences, 2011, 4(5/6):933-943.
[19] Zheng T, Qian Y, Shen Y J, et al. Mineralization age, tectonic setting and ore genesis of the Wuxing Pt-Pd-rich magmatic Cu-Ni sulfide deposit, Northeast China[J]. Ore Geology Reviews, 2021, 134: 104189.
[20] 康 明, 岳长成, 刘孝峰, 等. 内蒙古渣尔泰地区中生代火山岩地球化学特征及构造环境分析[J]. 岩石学报, 2017, 33(6): 1686-1704.
[21] 郭 锋, 范蔚茗, 王岳军, 等. 大兴安岭南段晚中生代双峰式火山作用[J]. 岩石学报, 2001,17(1): 161-168.
[22] Taylor S R, McLennan S M. The continental crust: Its composition and evolution[M]. London: Blackwell, 1985.
[23] Green T H. Significance of Nb/Ta as an indicator of geochemical processes in the crust-mantle system[J]. Chemical Geology, 1995, 120(3/4): 347-359.
[24] Hofmann A W. Chemical differentiation of the Earth: there lationship between mantle, continental crust, and oceanic crust[J]. Earth and Planetary Science Letters, 1988, 90(3): 297-314.
[25] Wu F Y, Yang J H, Lo C H, et al. The Heilongjiang Group: A Jurassic accretionary complex in the Jiamusi Massif at the western Pacific margin of northeastern China[J]. Island Arc, 2007, 16(1): 156-172.
[26] Schilling J G, Zajac M, Evans R, et al. Petrologic and geochemical variations along the Mid-Atlantic Ridge from 29 degrees N to 73 degrees N[J]. American Journal of Science, 1983, 283(6): 510-586.
[27] Xia B, Chen G, Wang R, et al. Seamount volcanism associated with the Xigaze ophiolite,Southern Tibet[J]. Journal of Asian Earth Sciences, 2008, 32(5/6): 396-405.
[28] 刘 飞, 杨经绥, 陈松永, 等. 雅鲁藏布江缝合带西段东波蛇绿岩OIB型玄武岩的厘定及其形成环境[J]. 岩石学报, 2013, 29(6): 1909-1932.
[29] Dai J, Wang C, Li Y. Relicts of the Early Cretaceous seamounts in the central-western Yarlung Zangbo Suture Zone, southern Tibet[J]. Journal of Asian Earth Sciences, 2012, 53: 25-37.
[30] 莫宣学, 路凤香, 沈上跃, 等. 三江特提斯火山作用与成矿[M]. 北京: 地质出版社, 1993.
[31] 刘汇川, 刘小平, 张永旺, 等. 印支运动启动的时间:来自云南点苍山晚二叠世辉长岩和闪长岩的证据[J]. 大地构造与成矿学, 2020, 44(3): 527-542.
[32] 钟 军, 范洪海, 陈金勇, 等. 辽宁赛马霓霞正长岩黑云母地球化学特征、40Ar-39Ar年龄及其地质意义[J]. 地球科学, 2020, 45(1): 131-144.
[33] Niu X, Chen B, Liu A, et al. Petrological and Sr-Nd-Os isotopic constraints on the origin of the Fanshan ultrapotassic complex from the North China Craton[J]. Lithos, 2012, 149: 146-158.
[34] 牛晓露, 杨经绥, 刘 飞, 等. 华北克拉通北缘包头东正长岩的成因:来自岩石矿物学和地球化学的证据[J]. 中国科学: 地球科学, 2016, 46(3): 374-391.
[35] 王 键, 李碧乐, 孙丰月. 吉南集安金厂沟金矿区晚三叠世黑云母闪长岩和正长花岗岩的年龄、岩石成因及其构造意义[J]. 大地构造与成矿学, 2016, 40(5): 1092-1106.

备注/Memo

备注/Memo:
收稿日期: 2021-06-24
基金项目: 吉林省教育厅"十三五"科学技术项目(JJKH20200946KJ); 自然资源部东北亚矿产资源评价重点实验室自主基金项目(DBY-ZZ-19-13)
第一作者简介: 王 迪(1987-),男,辽宁省新民人,工程师,硕士,研究方向:地质探矿,E-mail:980860105@qq.com。
编辑 晁晓筠 校对 张永彬
更新日期/Last Update: 2021-09-25