[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]

Gold Science and Technology >

2022 , Vol. 30 >Issue 5: 664 - 675

DOI: https://doi.org/10.11872/j.issn.1005-2518.2022.05.169

Mineral Exploration and Resource Evaluation

Geochemical Composition and Genetic Analysis of Gabbro of Saibagou Gold Deposit，Qinghai Province

  • Jia XING , 1 ,
  • Jianguo WANG , 1, 2 ,
  • Zhinan WANG 1 ,
  • Jian HU 1 ,
  • Shengyun WEI 1
Expand
  • 1. Department of Geological Engineering, Qinghai University, Xining 810016, Qinghai, China
  • 2. State Key Laboratory of Mineral Processing Science and Technology, Beijing 102628, China

Received date: 2021-11-17

  Revised date: 2022-06-19

  Online published: 2022-12-10

Fold

Highlights

The Saibagou gold deposit is one of the medium-size gold deposits located in the Wulan-Dulan strategic metallic ore concentration area in northern Qaidam Basin.The regional tectonic location spans the Tanjianshan magmatic arc，ophiolite melange in the northern Qaidam Basin and Olongbulak microcontinent，and is located at the intersection of Wahongshan-Wenquan fracture and Yuka-Wulan fracture.The formation of the deposit is strictly controlled by the fracture structure.There are two groups of fracture belts in the mining area，namely the NW trending thrust fracture and the NE trending shift fracture，and the gold orebody are mainly developed in the NW brittle-ductile shearing belt in veins，irregular，branched veins and lenticular.The main ore types are structural altered rock type and quartz vein type.Magmatism in the mining area is strong，and the active ages mainly include Late Variscan-Indosinian and Neoproterozoic，especially the Variscan magmatic activity is the most significant.Magmatic rocks exposed in the mining area are mainly gabbro and granite，in which gabbro and ore body have close spatial correlation.The magmatic rock samples used in this study were all taken from fresh gabbro after stripping regolith around the orebody of Saibagou gold deposit.The element analysis of the whole rock was conducted by the Qinghai Nuclear Industry Geological Bureau，including the detection of major elements，trace elements and rare earth elements.The results show that all gabbro in Saibagou gold deposit are tholeiite basalt，mainly alkaline gabbro and subalkaline gabbro，most of which are calcalkaline series or low potassium （tholeiite） series gabbro，and a small amount of shoshonite series gabbro exist.Gabbros are characterized by high total alkali content，enrichment of Na，Al and light rare earth elements，strong enrichment of large ion lithophile elements Sr，and depletion of high field strength elements Nb and Ti.Through in-depth analysis and comparison of the La/Nb and Zr/Ba values，Hake diagram，Rb/Y-Nb/Y ratio diagram，La-La/Sm diagram，La/Yb-Nb/Ta diagram and Th/Nb-Ce/Nb diagram of gabbro in Saibaigou gold deposit，it is determined that the gabbro primary magma of Saibagou gold deposit originated from the lithospheric mantle magma which experienced fractional crystallization，assimilation and contamination，and partial melting during the the process of ascending and invaded，and intruded into the shallow crust to form gabbro primitive magma.

Cite this article

Jia XING , Jianguo WANG , Zhinan WANG , Jian HU , Shengyun WEI . Geochemical Composition and Genetic Analysis of Gabbro of Saibagou Gold Deposit，Qinghai Province[J]. Gold Science and Technology, 2022 , 30(5) : 664 -675 . DOI: 10.11872/j.issn.1005-2518.2022.05.169

[an error occurred while processing this directive]

http://www.goldsci.ac.cn/article/2022/1005-2518/1005-2518-2022-30-5-664.shtml

References

Publishing order | Descend order by publishing year | Descend order by cited within
Artiola J F，1994.Using geochemical data：Evaluation，presentation，interpretation［J］.Soil Science，158（5）：352-381.

Depaolo D J， Daley E E，2000.Neodymium isotopes in basalts of the southwest basin and range and lithospheric thinning during continental extension［J］.Chemical Geology，169（1/2）：157-185.

Duan L A， Gu H L， Yang X Y，2017.Geological and geochemical constraints on the newly discovered Yangchongli gold deposit in Tongling region，Lower Yangtze metallogenic belt［J］.Acta Geologica Sinica （English Edition），91（6）：2078-2108.

Feng Chengyou， Zhang Dequan， Li Daxin，et al，2002.Geological characteristics and ore-forming age of the Saibagou gold deposit，Qinghai Province［J］.Mineral Deposits，21（1）：45-52.

Fu Qingyuan， Li Baolin，1998.Metallogenetic features and ore-controllinc conditions of Saibagou gold deposit，Qinghai［J］.Qinghai Geology，（1）：43-49.

Guo Xiyun，2021.The chronology and geochemical research on gabbro of Late Jurassic-Early Cretaceous in Chaokwula area，southern part of Hinggan Mountains［J］.Geological Review，67（3）：787-802.

He Pengli， Huang Xiaolong， Yang Fan，et al，2020.Petrogenesis and tectonic setting of the Xiaoharajunshan titanomagnetite-rich gabbro，West Tianshan orogen［J］.Acta Petrologica Sinica，36（7）：2001-2016.

Hoskin P W O， Kinny P D， Wyborn D，et al，2000.Identifying accessory mineral saturation during differentiation in granitoid magmas：An integrated approach［J］.Journal of Petrology，41（9）：1365-1396.

Liao Yubin， Li Bile， Sun Yonggang，et al，2020.U-Pb dating，zircon U-Pb age，petrochemistry and Hf isotope characteristics of gabbro in Xitieshan Pb-Zn mining area in northern margin of Qaidam Basin［J］.Global Geology，39（3）：495-508.

Liu Fei， Li Guanlong， Bo Rongzhong，et al，2021.Spreading ridge subduction of Bangong-Nujiang Ocean：Evidence from geochemistry and Sr-Nd isotopic of middle Jurassic gabbro dikes in the Zongbai accretionary comple［J］.Geological Bulletin of China，40（8）：1247-1264.

Liu Yiming， Li Cai， Li Sanzhong，et al，2018.The Early Cretaceous Duguer metagabbro from Qiangnan-Baoshan block，Tibet Plateau：Implications for the subduction and closure of Bangong Co-Nujiang Ocean［J］.Geological Bulletin of China，37（8）：1450-1463.

Liu Z， Shao Y， Wang C，et al，2019.Genesis of the Dongguashan skarn Cu-（Au） deposit in Tongling，Eastern China：Evidence from fluid inclusions and HOS-Pb isotopes［J］.Ore Geology Reviews，104：462-476.

Ma Cheng， Song Yiwei， Sun Biao，et al，2021.Geochemical characteristics and geological significance of Minxian-Lixian Metallogenic Belt，western Qinling Region［J］.Gold Science and Technology，29（4）：489-499.

MacDonald R， Rogers N W， Fitton J G，et al，2001.Plume-lithosphere interactions in the generation of the basalts of the Kenya Rift，East Africa［J］.Journal of Petrology，42（5）：877-900.

Middlemost E A K，1994.Naming materials in the magma/igneous rock system［J］.Earth-science Reviews，37（3/4）：215-224.

Miyashiro A，1974.Volcanic rock series in island arcs and active continental margins［J］.American Journal of Science，274（4）：321-355.

Ren Wenxiu， Huang Zengbao， Wang Jun，et al，2020.Zircon U-Pb ages based on LA-ICP-MS and its tectonic significance in the Yushishan ophiolite melange［J］.Journal of Lanzhou University（Natural Sciences），56（5）：690-699，710.

Shi K， Yang X， Du J，et al，2020.Geochemical study of cretaceous magmatic rocks and related ores of the Hucunnan Cu-Mo deposit：Implications for petrogenesis and poly-metal mineralization in the Tongling ore-cluster region［J］.Minerals，10（2）：107-132.

Sun S S， Mcdonough W F.1989.Chemical and isotopic systematics of oceanic basalts：Implications for mantle composition and processes［J］.Geological Society London Special Publications，42（1）：313-345.

Tang Mingying， He Zongwei， Zhu Dequan，et al，2021.S and Pb isotopic compositions in Saibagou gold deposit on north margin of Qaidam Basin：An indication to the source of metallogenic materials［J］.Mineral Deposits， 40（1）：117-127.

Tang Mingying， Peng Yonghe， Zhu Dequan，et al，2016.Characteristics of primary haloes of the Ⅳ-3 vein and deep ore-body prediction of the Saibagou gold deposit in Qinghai Province［J］.Geophysical and Geochemical Exploration，40（3）：475-481.

Taylor S R， Mclennan S M.1985.The Continental Crust：Its Composition and Evolution［M］.Oxford：Blackwell.

Tong Haikui， Zhang Shungui， Xu Guowu，et al，2009.Characteristics and genesis of ductile shear zone related gold deposits in Saibagou of Wulan County［J］.Northwestern Geology，42（1）：88-94.

Xiao Fuquan， Huang Jiejie， Chen Zhiyong，et al，2021.Geoche-mical characteristics and genesis of magmatic rocks in Yan-gchongli gold deposit，Tongling ore concentration area，Anhui Province［J］.Journal of Geology，45（3）：230-239.

Xie Jiancheng， Yang Xiaoyong， Xiao Yilin，et al，2012.Petrogenesis of the Mesozoic intrusive rocks from the Tongling ore cluster region：The metallogenic significance［J］.Acta Geologica Sinica，86（3）：423-459.

Xing Fengming， Xu Xiang，1995.The essentail features of magmatic rocks along the Yangtze river in Anhui Province［J］.Acta Petrologica Sinica，11（4）：409-422.

Yu Junpeng， Wang Huaitao， Wang Yuxi，et al，2021.Geochrono-logy and geochemistry of Tanshanzidong olivine-gabbro in Beishan area，Gansu Province，and its geological significa-nce［J］.Acta Petrologica et Mineralogica，40（2）：202-216.

Zhang Baoyue， Sun Jianjun， Luo Xiong，et al，2019.Data analysis of major and trace elements of gabbro clinopyroxene from different tectonic settings［J］.Earth Science Frontiers，26（4）：33-44.

Zhang Yuyu， Wang Qimeng， Ren Ruipeng，et al，2018.Metallogenic geological characteristics and prospecting direction of the Saibagou area in Wulan County，Qinghai Province［J］.North China Geology， 41（3）：191-197.

丰成友，张德全，李大新，等，2002.青海赛坝沟金矿地质特征及成矿时代［J］.矿床地质，21（1）：45-52.

付青元，李宝林，1998.赛坝沟金矿成矿特征及控矿条件［J］.青海地质，（1）：43-49.

郭喜运，2021.大兴安岭南段朝克乌拉地区晚侏罗世—早白垩世辉长岩年代学和地球化学研究［J］.地质论评，67（3）：787-802.

贺鹏丽，黄小龙，杨帆，等，2020.西天山小哈拉军山富钛磁铁矿辉长岩的岩石成因及其构造环境［J］.岩石学报，36（7）：2001-2016.

廖宇斌，李碧乐，孙永刚，等，2020.柴达木盆地北缘锡铁山铅锌矿区辉长岩锆石U-Pb年代、岩石地球化学和Hf同位素特征［J］.世界地质，39（3）：495-508.

刘飞，李观龙，薄容众，等，2021.班公湖—怒江洋的扩张脊俯冲：宗白增生杂岩中侏罗世辉长岩脉地球化学和Sr-Nd同位素特征［J］.地质通报，40（8）：1247-1264.

刘一鸣，李才，李三忠，等，2018.青藏高原羌南—保山板块都古尔地区早白垩世变质辉长岩：对班公湖—怒江洋俯冲闭合的制约［J］.地质通报，37（8）：1450-1463.

马承，宋伊圩，孙彪，等，2021.西秦岭岷礼成矿带地球化学特征及其地质意义［J］.黄金科学技术，29（4）：489-499.

任文秀，黄增保，王军，等，2020.东天山玉石山蛇绿混杂岩带辉长岩LA-ICP-MS锆石U-Pb年龄及其构造意义［J］.兰州大学学报（自然科学版），56（5）：690-699，710.

唐名鹰，何宗围，朱德全，等，2021.柴北缘赛坝沟金矿床硫、铅同位素组成：对成矿物质来源的指示［J］.矿床地质， 40（1）：117-127.

唐名鹰，彭永和，朱德全，等，2016.青海赛坝沟金矿床Ⅳ-3号矿体原生晕特征与深部预测［J］.物探与化探，40（3）：475-481.

童海奎，张顺桂，许国武，等，2009.乌兰县赛坝沟韧性剪切带型金矿特征及成因［J］.西北地质，42（1）：88-94.

肖福权，黄杰杰，陈志永，等，2021.安徽铜陵矿集区杨冲里金矿岩浆岩地球化学特征与成因［J］.地质学刊，45（3）：230-239.

谢建成，杨晓勇，肖益林，等，2012.铜陵矿集区中生代侵入岩成因及成矿意义［J］.地质学报，86（3）：423-459.

邢凤鸣，徐祥，1995.安徽沿江地区中生代岩浆岩的基本特点［J］.岩石学报，11（4）：409-422.

余君鹏，王怀涛，王玉玺，等，2021.甘肃北山炭山子东橄榄辉长岩年代学、地球化学特征及其地质意义［J］.岩石矿物学杂志，40（2）：202-216.

张玉瑜，王启蒙，任瑞鹏，等，2018.青海省乌兰县赛坝沟地区金成矿地质特征及找矿方向［J］.地质调查与研究， 41（3）：191-197.

章宝月，孙建鹍，罗熊，等，2019.三类构造背景辉长岩单斜辉石主量元素和微量元素的数据分析研究［J］.地学前缘，26（4）：33-44.

Options
Outlines

/

〈 〉

[an error occurred while processing this directive]