坦桑尼亚盖塔绿岩带成矿地质特征和成矿时代

doi:10.11872/j.issn.1005-2518.2023.03.170

Abstract

Abstract:

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.

Key words: Tanzania, greenstone belt, Geita gold deposit, geological characteristics, mineralization era

CLC Number:

P618.51

Jiantao SI,Desheng BAI,Zunqun XIAO,Shuiping LI,Dong QI,Jin SUN. Geological Characteristics and Mineralization Era of Geita Greenstone Belt in Tanzania[J].Gold Science and Technology, 2023, 31(3): 387-395.

Figures/Tables 8

Fig.1

Fig.2

Fig.3

Fig.4

Fig.5

Table 1

Fig.6

Table 2

References 0

	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.

Related Articles 15

[1]	Lei CHEN,Baofu DUAN,Dao LV,Jianpeng ZENG,Shuo ZHANG,Xingfu ZENG,Meijun HUANG. Geological Characteristics and Genesis of Yudai Copper Deposit in Kalatag District，Eastern Tianshan [J]. Gold Science and Technology, 2023, 31(3): 396-407.
[2]	Bowen LI,Huajuan GU,Chenglu LI,Baoshan LIU,Xiaoping YANG. Geological Characteristics and Prospecting Potential of Sanhetun Gold Deposit in Heilongjiang Province [J]. Gold Science and Technology, 2022, 30(4): 508-517.
[3]	Hui GUO,Chunming LIU,Dezhi HUANG,Haiyang ZOU,Lei CHEN. Geological Characteristics and Prospecting Prognosis of the Dayu Gold Deposit in Dayaoshan，Guangxi [J]. Gold Science and Technology, 2020, 28(1): 12-20.
[4]	Kechuan ZHANG,Qingwei LUO,Aiwen YI,Deyu QIN,Cheng QUAN,Jibing YANG. Ore Characteristics and Gold Occurrence Status of PL7184 Gold Deposit in Tanzania [J]. Gold Science and Technology, 2019, 27(6): 826-834.
[5]	Ming WEI,Bin ZHAO,Rui WANG,Zhenxing PAN,Liguo CAO. Study on the Distribution of Mineral Grades Based on 3D Model：Taking Shaanxi Longtougou Gold Mine as an Example [J]. Gold Science and Technology, 2019, 27(2): 172-180.
[6]	Qingwei LUO,Baoguo WANG,Aiwen YI,Kechuan ZHANG,Ze PAN,Shengya ZHANG. Typomorphic Characters and Significance of Pyrite in a Greenstone Belt Type Gold Deposit in Tanzania [J]. Gold Science and Technology, 2019, 27(1): 15-24.
[7]	Peijiao JU. Geological Characteristics and Ore-controlling Factors of Liyuan Gold Deposit， Shanxi Province [J]. Gold Science and Technology, 2018, 26(6): 706-717.
[8]	Weiguang HUI,Mingxuan LEI,Yuanpeng XIA,Xiaobin ZHANG,Qing SUN,Xusheng DUAN. Geological Characteristics and Primary Palo Geochemical Prospecting Prediction of the 460 Gold Deposit in Subei County,Gansu Province [J]. Gold Science and Technology, 2018, 26(5): 570-585.
[9]	ZHANG Qibin, ZHANG Peng, XU Zhonghua, LIU Xiangdong, ZHANG Liangliang, WANG Bin, WANG Shanshan. Geological Characteristics and Genesis of Yanjiatuan Gold Deposit in Muping，Shandong Province [J]. Gold Science and Technology, 2018, 26(3): 279-288.
[10]	ZHANG Pengpeng, LI Junjian, DANG Zhicai, TANG Wenlong, FU Chao, TIAN Jiepeng. Geological Feature and Prospecting Direction of Dornod Uranium Deposit in Mongolia [J]. Gold Science and Technology, 2018, 26(1): 9-16.
[11]	WANG Jikun，SONG Beibei，HU Ruigang. Geological Characteristics and Prospecting Direction of Antuoling Molybdenum Deposit in Hebei Province [J]. Gold Science and Technology, 2017, 25(4): 18-25.
[12]	WANG Chao，GU Yuming，HU Xishun，MEN Wenhui，YANG Haitao，WU Tao，WANG Yuliang，ZHAO Yanfeng. Geological Characteristics and Prospecting Direction of Albitite and Gold Deposit in Sanguanmiao-Jiucaigou Area，Shaanxi Province [J]. Gold Science and Technology, 2017, 25(1): 35-45.
[13]	WANG Chao，MEN Wenhui，WU Tao，ZHANG Xiaofu，LI Ying，HU Xishun. Geological Characteristics，Geochemical Characteristics of Primary Halos and Their Prospecting Significance about San’guanmiao Gold Deposit in Shaanxi Province [J]. Gold Science and Technology, 2016, 24(6): 39-48.
[14]	XIA Shuai，NIU Shuyin，SUN Aiqun，WANG Yuhao，WANG Min，ZHAO Yajuan，CHEN Chao. Geological Characteristics and Mineralization of Weijiayu Gold Deposit in the Northern Taihang Mountains [J]. Gold Science and Technology, 2016, 24(4): 32-38.
[15]	. Geological Geochemical Characteristics and Genesis of Wangjiaping Gold Deposit [J]. Gold Science and Technology, 2016, 24(4): 39-46.

Metrics

Viewed

Full text

Abstract

Cited

Shared

Discussed

Comments

Recommended 10

[1]	SU Jian-Hua, LIU Shu-Lin. Study of Gold Extraction from Tail Solution with High Acid Content and Low Concentration[J]. J4, 2010, 18(3): 72 -75 .
[2]	ZHANG YinFei. Discussion on M ineralization Regularity of the Eighth Ore Body of Shuangwang Gold Deposit, Shaanx i Prov ince[J]. J4, 2008, 16(1): 35 -38 .
[3]	YUE Yongdong. [J]. J4, 2007, 15(2): 47 -48 .
[4]	HUAI Bao-Feng, WANG Xiao-Yong, SONG Bing-Jian, LIANG Hai-Jun. Geological Features and Prospecting Direction of Duhuangling Gold Deposit, Jilin[J]. J4, 2007, 15(3): 19 -23 .
[5]	Lei Jun. PRESENT SITUATION OF DEVELOPMENT OF GOLDEN INDUSTRY OF GANSU PROVINCE[J]. J4, 1998, 6(5-6): 50 -56 .
[6]	CUI Ting-Jun, DAI Ke-Sai, PENG Yong, FU Xing. Discussion on the Geological Characteristics and Metallogenic Regularity of the Southern Edge of Qaidam Basin Gold Metallogenic Belt in Qinghai Province[J]. J4, 2010, 18(3): 63 -67 .
[7]	YE Yuewei. Determination of Gold in Inferior Gold Potassium of Cyaniding by the Gravimet—ric M ethod[J]. J4, 2008, 16(2): 60 -61 .
[8]	XU Lun-Xian, SONG Bing-Jian, ZHOU Dian-Yu, HUAI Bao-Feng. Geological-Geochemical Features of the Hulalin Gold Deposit，Daxing’anling[J]. J4, 2007, 15(3): 1 -4 .
[9]	WANG Wei, TONG Hai-Kui, GUO Shi-Zhen, MA Xiu-Lan, SU Sheng-Shun. Metallogenic Features and Genesis of Dachang Gold Ore-field in Qinghai Province[J]. J4, 2009, 17(2): 23 -27 .
[10]	ZHANG Fen-Yang, HE Hai-Qing, HAO Li-Gong, FAN Li-Kun, CA Yan-Ping, DOU Hong-Wei. Analysis on Geological Characteristics and Genesis of Hongshuihe Iron Ore in Dulan County[J]. J4, 2009, 17(3): 35 -39 .

区域	K/Rb比值	K/Ba比值
海水	3 300	19 900
地壳	286	37
矿化条带状铁建造（盖塔金矿）	221	25
未矿化条带状铁建造（盖塔金矿）	133	41

地层	岩性	测年数据/Ma	测年方法	测年矿物	数据来源	样品位置	构造期
下尼安萨群	玄武岩	2 821±30；2 819±18	Sm-Nd； U-Pb	全岩；锆石	Manya et al.，2003；Cook et al.，2016	库库鲁马；思达—康姆特	太古宙
下尼安萨群	火山碎屑岩	2 771±15	U-Pb	锆石	Chamberlain et al.，2007	尼亚坎加—盖塔山	太古宙
上尼安萨群	硅质岩	2 737±11	U-Pb	锆石	Chamberlain et al.，2007	思达—康姆特	前造山期
	条带状铁建造	2 702±8；2 699±8；2 687±16	U-Pb	锆石	Chamberlain et al.，2007	尼亚坎加—盖塔山
	凝灰岩	2 724±12；2 717±9；2 707±12	U-Pb	锆石	Kwelwa et al.，2018	库库鲁马
侵入岩	闪长岩	2 699±9；2 698±14	U-Pb	锆石	Borg et al.，1999；Chamberlain et al.，2007	尼亚坎加—盖塔山	同造山期
	花岗斑岩	2 695±18；2 693±19；2 689±11	U-Pb	锆石	Chamberlain et al.，2007	尼亚坎加—盖塔山
	煌斑岩	2 686±13	U-Pb	锆石	Chamberlain et al.，2007	尼亚坎加—盖塔山
	花岗岩	2 680±13；2 671±182 667±19	Lu-Hf	锆石	Sanislav et al.，2014	盖塔金矿南部
	花岗闪长岩	2 660±8；2 651±14；2 667±17	U-Pb	锆石	Chamberlain et al.，2007；Kwelwa et al.，2018；Sanislav et al.，2018a；	库库鲁马	后造山期
	富钾花岗岩	2 653±35；2 658±14；2 648±16；2 633±19；2 617±17；2 638±16；2 632±12	U-Pb	锆石	Chamberlain et al.，2007；Sanislav et al.，2018a，2018b	尼亚坎加—盖塔山；盖塔金矿北部
	煌斑岩	2 644±3	U-Pb	锆石	Borg et al.，1999	尼亚坎加—盖塔山

Geological Characteristics and Mineralization Era of Geita Greenstone Belt in Tanzania

RichHTML

PDF (PC)