[an error occurred while processing this directive] [an error occurred while processing this directive] [an error occurred while processing this directive]
[an error occurred while processing this directive]

黄金科学技术 >

2023 , Vol. 31 >Issue 3: 387 - 395

DOI: https://doi.org/10.11872/j.issn.1005-2518.2023.03.170

矿产勘查与资源评价

坦桑尼亚盖塔绿岩带成矿地质特征和成矿时代

  • 司建涛 , 1 ,
  • 白德胜 1 ,
  • 肖尊群 2 ,
  • 李水平 1 ,
  • 祁东 1 ,
  • 孙进 1
展开
  • 1. 河南省地质矿产勘查开发局第二地质矿产调查院，河南 郑州 450001
  • 2. 武汉工程大学兴发矿业学院，湖北 武汉 430074

司建涛（1981-），男，河南新郑人，高级工程师，从事非洲固体矿产资源勘查和区域资源潜力评价工作。

收稿日期: 2022-11-12

  修回日期: 2023-03-08

  网络出版日期: 2023-07-20

基金资助

中央国外矿产资源风险勘查资金项目“坦桑尼亚Mwamola地区Maheiga金矿详查”(201210B01600252)

收起

Geological Characteristics and Mineralization Era of Geita Greenstone Belt in Tanzania

  • Jiantao SI , 1 ,
  • Desheng BAI 1 ,
  • Zunqun XIAO 2 ,
  • Shuiping LI 1 ,
  • Dong QI 1 ,
  • Jin SUN 1
Expand
  • 1. No. 2 Institute of Geological and Mineral Resources Survey of Henan, Zhengzhou 450001, Henan, China
  • 2. Xingfa School of Mining Engineering, Wuhan Institute of Technology, Wuhan 430074, Hubei, China

Received date: 2022-11-12

  Revised date: 2023-03-08

  Online published: 2023-07-20

Fold

本文亮点

坦桑尼亚盖塔绿岩带大地构造位置处于坦桑尼亚克拉通的西北部，绿岩带内发育有世界级的大型金矿床——盖塔金矿。通过对盖塔绿岩带的成矿地质特征、典型矿床和成矿时代进行研究，厘定了该绿岩带的成矿时代，总结了其演化历史。研究表明：盖塔绿岩带出露的岩石类型主要为太古宇尼安萨群条带状铁建造、火山碎屑沉积和卡维隆多群砂砾岩，以及同造山期和后造山期花岗岩、煌斑岩和粗面岩等侵入岩体。区内构造发育，多为褶皱和剪切带，构造方向主要为NW-SE、NE-SW和近SN向。区内金矿脉主要产于条带状铁建造与煌斑岩脉的剪切接触带内，及其与煌斑岩平行的石英脉中；地球化学特征显示其矿体为从岩浆分异出的含矿热液流体赋存于构造空间所形成，根据测年资料，初步认为盖塔绿岩带的主要金成矿期为（2 699±9）~（2 617±17）Ma，其带内发育的盖塔金矿床属于典型的太古宇绿岩带造山型金矿床。

本文引用格式

司建涛 , 白德胜 , 肖尊群 , 李水平 , 祁东 , 孙进 . 坦桑尼亚盖塔绿岩带成矿地质特征和成矿时代[J]. 黄金科学技术, 2023 , 31(3) : 387 -395 . DOI: 10.11872/j.issn.1005-2518.2023.03.170

Highlights

The Geita greenstone belt is located in the northwest of Tanzania craton，and developed a world-class large-scale gold deposit with a 387 t gold resources，namely Geita gold deposit.The main rock type of Geita greenstone belt is banded iron formation（BIF），volcanic clastic sedimentation and kavirondian system conglomerate，both with syn-orogenic granite，lamprophyre and trachyandesite.The structure of folds and shear zones are well developed in the area，and the structure directions are mainly NW-SE，NE-SW and nearly E-W.The gold veins are developed in the contact of BIF and lamprophyre，and found in nearby parallel quartz veins.The characteristics of geochemistry shows that the orebodies were formed from the magmatic hydrothermal，and hosted in the shear zone.Based on the study of geology，typical gold deposits and ore-forming age of the Geita greenstone belt，this paper determines the era of mineralization and summarizes the evolutionary history of Geita greenstone belt.As a preliminary view，the evolutionary history of Geita greenstone belt shows many periods，including volcanic activities，deposit formation，tectonic activities，multi-hydrothermal activities and tectonic reworking.For the tectonic reworking of Geita greenstone belt，determines the main era of mineralization is （2 699±9）~（2 617±17）Ma，and the Geita gold deposit is a typical greenstone belt gold deposit of orogenic belt type of Archean.

[an error occurred while processing this directive]

脚注

http://www.goldsci.ac.cn/article/2023/1005-2518/1005-2518-2023-31-3-387.shtml

参考文献

原文顺序 | 文献年度倒序 | 文中引用次数倒序
Bai Desheng， Li Shuiping， Zhao Zhiqiang，et al，2021.Study on application of geophysics method for gold mine prospecting in around Lake Victoria region，Tanzania［J］.Progress in Geophysics，36（3）：1029-1045.

Borg G， Krogh T，1994.The Geita gold deposit in NW Tanzania—Geology，ore petrology，geochemistry and timing of events［J］.Geologisches Jahrbuch Reihe D，100：545-595.

Borg G， Krogh T，1999.Isotopic age data of single zircons from the Archean Sukumaland greenstone belt，Tanzania［J］.Journal of African Earth Sciences，29：301-312.

Chamberlain C，Tosdal R，2007.U-Pb geochronology of the Lake Victoria Greenstone Terranes，Tanzania［R］.Canada：University of British Columbia.

Cheng Hua， Li Shuiping， Zhang Ailing，et al，2020.Aeromagnetic anomaly characteristics and survey region division of gold deposit types in Lake Victoria area of Tanzania［J］.Progress in Geophysics，35（5）：1933-1944.

Cook A， Sanislav V，Hammerli，et al，2016.A primitive mantle source for the Neoarchean mafic rocks from the Tanzania craton［J］.Geoscience Frontiers，7：911-926.

Cui Xiaojun， Wang Jianguang， Bai Desheng，et al，2013.Prospect report of Mwamola district in Tanzania［R］.Zhengzhou：No.2 Institute of Geological and Mineral Resources Survey of Henan.

Dirks P， Sanislav I， van Ryt M R M，et al，2021.The World-Class Gold Deposits in the Geita Greenstone Belt，Northwestern Tanzania［M］//Sillitoe R H，Goldfarb R J，Robert F，et al，2021.Geology of the World’s Major Gold Deposits and Provinces.Littleton：Society of Economic Geologists.

Gong Penghui， Liu Xiaoyang， Wang Jie，et al，2015.Geological characteristics of gold deposit in Geita greenstone belt，Tanzania ［J］.Journal of Geological Exploration，30（Supp.1）：93-97.

Guo Jinghui， Bai Desheng， Zhang Chao，et al，2021.Geological characteristics and genesis of orogenic gold deposits in Archean greenstone belt of Tanzania Craton［J］. World Geology，40（4）：816-829.

Kerrich R， Goldfarb R， Groves D，et al，2000.The characteristics origins and geodynamic settings of supergiant gold metallogenic provinces［J］.Science in China，1：1-68.

Kwelwa D， Sanislav V， Dirks M，et al，2018.Zircon U-Pb ages and Hf isotope data from the Kukuluma terrain of the Geita greenstone belt，Tanzania craton：Implications for stratigraphy，crustal growth and timing of gold mineralization［J］.Journal of African Earth Sciences，139：38-54.

Manya S，2016.Petrogenesis and emplacement of the TTG and K-rich granites at the Buzwagi gold mine，northern Tanzania：Implications for the timing of gold mineralization［J］.Lithos，256：26-40.

Manya S， Maboko H，2003.Basaltic volcanism in the Neoarchaean Sukumaland greenstone belt of the Tanzania craton using the Sm-Nd method：Implications for the geological evolution of the Tanzania craton［J］.Precambrian Resear-ch，121：35-45.

Sanislav I V， Blenkinsop T G， Dirks M，2018a.Archean crustal growth through successive partial melting events in an oceanic plateau-like setting in the Tanzania craton［J］.Terra Nova，30：169-178.

Sanislav I V， Dirks M， Blenkinsop T G，et al，2018b.The tectonic history of a crustal-scale shear zone in the Tanzania craton from the Geita greenstone belt，NW-Tanzania craton［J］.Precambrian Research，310：1-16.

Sanislav I V， Dirks M， Kolling S， et al，2016.The structural history and mineralization controls of the world-class Geita Hill gold deposit，Geita greenstone belt，Tanzania［J］.Mineralium Deposita，52：257-279.

Sanislav I V， Wormald R J， Dirks M，et al，2014.Zircon U-Pb ages and Lu-Hf isotope systematics from late tectonic granites，Geita greenstone belt：Implications for crustal growth of the Tanzania craton［J］.Precambrian Research，242：187-204.

Semkiwa P M， Kafumu P D， SAyub S Y，2005.Opportunities for Mineral Resource Development of Tanzania［M］.Tanzania：Ministry of Energy and Minerals.

Thomas R Y，2022.The mineral industry of Tanzania（advanced release）［R］.Reston：U S Geological Survey.

Wang Qingfei， Deng Jun， Zhao Hesen，et al，2019.Review on or-ogenic gold deposits［J］.Earth Science，44（6）：2155-2186.

白德胜，李水平，赵志强，等，2021.坦桑尼亚环维多利亚湖地区金矿勘查地球物理方法应用研究［J］.地球物理学进展，36（3）：1029-1045.

程华，李水平，张爱玲，等，2020.坦桑尼亚环维多利亚湖地区航磁异常特征及金矿床类型勘查地域划分［J］.地球物理学进展，35（5）：1933-1944.

崔小军，王建光，白德胜，等，2013.坦桑尼亚姆瓦莫拉地区金矿详查报告［R］.郑州：河南省地质矿产勘查开发局第二地质矿产调查院.

龚鹏辉，刘晓阳，王杰，等，2015.坦桑尼亚盖塔（Geita）绿岩带型金矿矿床地质特征［J］.地质找矿论丛，30（增1）：93-97.

郭景会，白德胜，张超，等，2021.坦桑尼亚克拉通太古代绿岩带造山型金矿床地质特征及成因［J］.世界地质，40（4）：816-829.

王庆飞，邓军，赵鹤森，等，2019.造山型金矿研究进展：兼论中国造山型金成矿作用［J］.地球科学，44（6）：2155-2186.

Options
文章导航

/

〈 〉

[an error occurred while processing this directive]