GLOBAL GEOLOGY Vol. 33 No. 2 Jun : 辽宁树基沟铜锌块状硫化物矿床产于太古宙绿岩带中, 矿床形成后经历了强烈的变质和变形, 变质程度达到高级角闪岩相通过含矿岩系地球

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1 GLOBAL GEOLOGY Vol. 33 No. 2 Jun : 辽宁树基沟铜锌块状硫化物矿床产于太古宙绿岩带中, 矿床形成后经历了强烈的变质和变形, 变质程度达到高级角闪岩相通过含矿岩系地球化学研究, 讨论了岩浆来源成岩构造背景及成因研究表明, 含矿岩系明显富集大离子亲石元素轻稀土元素及活泼的不相容元素, 相对亏损高场强元素和重稀土元素, 具有较高的 Th /Ta Ce /Yb La /Nb La /Ta 比值, 其原始地幔标准化的微量元素蛛网图模式与典型钙碱性岛弧玄武岩模式极为相似, 均呈三隆起的形式, 原岩为一套中酸性火山 - 沉积岩组合, 区内这套英安岩流纹岩安山岩 - 玄武岩的钙碱性火山岩组合是由同源岩浆分异所得, 其形成于岛弧环境综合矿床形成背景环境成矿物质来源和矿床地质特征, 笔者初步认为其成因类型为诺兰达型块状硫化物矿床 : 地球化学 ; 岛弧环境 ; 块状硫化物矿床 ; 铜锌矿 ; 树基沟 ; 辽宁 : P618. 4; P595 : A doi: /j. issn Geochemical characteristics and genesis of Shujigou Cu -Zn deposit Liaoning HAO Ming YANG Yan-chen ZHANG Guo-bin HAN Shi-jiong TAN Yan College of Earth Sciences Jilin University Changchun China Abstract Shujigou Cu -Zn massive sulphide deposite originated in the Archean greenstone belts of Liaoning. It was experienced intensive metamorphism and deformation after the formation of ore deposits. Its metamorphism extent reached advanced amphibolite facies. Through the study of geochemistry the authors discussed the magma source tectonic setting and genesis. The study showed that ore-bearing rocks obviously enriched in LILE LREE and lively incompatible elements and relatively depleted in high field strength elements and HREE with high Th / Ta Ce / Yb La / Nb La / Ta ratios. The mode of primitive mantle-normalized spider diagram was quite similar to the typical calc-alkaline island arc basalts which showed three uplift form. The original rock was a set of acidic volcanic-sedimentary assemblage. The calc-alkaline volcanic assemblage of dacite rhyolite and andesite-basalt in this area was the product of comagmatic differentiation which formed in an island arc environment. Consolidating the forming background environment of deposit material source and geological characteristics the authors preliminarily consider that the genetic type was Noranda-type for massive sulphide deposit. Key words geochemistry island arc environment massive sulfide deposit Cu -Zn deposit Shujigou Liaoning yyc@ jlu. edu. cn

2 Fig Regional geological map of Fushun - Qingyuan

3 SH SH SH3 4 SH4 11 EW SSW ~ Ga ~ Ga SH1 2 SH2 3 SH3 4 SH4 5 SH5 6 SH6 7 SH SH % 2. 0% t t 14 9 SH SH SH ~ 2. 9 Ga 2. 5Ga ± 7 8

4 SJG -21 SJG -15 Na 2 O > K 2 O δ ~ < 3. 3 X - XRF SiO ~ < 5% wt% wt% K 2 O ICP - MS Na 2 O ~ wt% ~ % < % 1 SJG -3 SJG -4 SJG -16 SJG -17 SJG -18 > wt% Na 2 O + K 2 O ~ wt% K 2 O / Na 2 O = ~ CaO Fig. 2 2 Harker Harker diagrams of specimens of Shujigou deposit

5 2 341 Table 1 1 Geochemical analysis results of Shujigou deposit SJG -3 SJG -4 SJG -16 SJG -17 SJG -15 SJG -18 SJG -21 SiO TiO Al 2 O T Fe 2 O MnO MgO CaO Na 2 O K 2 O P 2 O LOI TOTAL La Ce Pr Nd Sm Eu Gd Tb Dy Ho Er Tm Yb Lu δeu δce La /Yb N LREE HREE LREE /HREE ΣREE Rb Ba Th U Ta Nb Pb Sr Zr Hf Y Ni Ga σ wt% 10-6.

6 ~ wt% TFe ~ wt% MgO ~ wt% Al 2 O ~ K Rb Ba Th Ce Sm Ta wt% Al 2 O 3 MgO SiO 2 Zr Hf Ti SiO ~ wt% wt% K 2 O Na 2 O ~ wt% ~ wt% Na 2 O + K 2 O ~ wt% K 2 O / Na 2 O = ~ CaO ~ wt% TFe ~ wt% MgO ~ wt% Al 2 O ~ wt% Al 2 O 3 MgO SiO LREE / HREE = ~ La /Yb N = ~ Harker Gd /Yb N = ~ Al 2 O 3 MgO 15 HFSE LILE Th /Ta Ce /Yb La /Nb La /Ta b ΣREE ~ δeu = ~ FeO T SiO 2 FeO T /MgO SiO b ΣREE ~ LREE /HREE = ~ La 4. 3 /Yb N = ~ a 3 19 Fig. 3 Primitive - mantle normalized spider diagram of trace elements and chondrite - normalized REE patterns of Shujigou deposit

7 2 343 al + fm - c + alk - Si al fm c alk Si al fm c alk Si al + fm - c + alk - Si Zr /TiO 2 - Nb /Y Fig. 5 Zr /TiO 2 - Nb /Y diagram of ore - bearing rocks of Shujigou deposit 4 Fig. 4 al + fm - c + alk - Si al + fm - c + alk - Si diagram of ore - bearing rocks of Shujigou deposit 6 w SiO 2 - w K 2 O + Zr /TiO 2 - Nb /Y Na 2 O 5 Fig. 6 w SiO 2 - w K 2 O + Na 2 O diagram of orebearing rocks of Shujigou deposit 7 w SiO 2 - w K 2 O + Na 2 O w K 2 O + Na 2 O 6 AFM 7 69 wt% Ba 42 ~ 396 wt% Nb SJG - 17 SJG ~ wt% Ta ~ Th - Hf /3 - wt% Ti ~ wt% Nb /16 8 LILE HFSE 22 TiO ~ wt% LREE HREE MORB Al 2 O ~ HREE > 10 Yb > wt% 13 wt% K 2 O ~ wt% K 2 O Na 2 O Sr 64 ~ 190 wt% Rb 5 ~

8 Fig AFM AFM diagram of ore-bearing rocks of Shujigou deposit A. B. C. D. Fig. 8 8 Th - Hf /3 - Nb /16 21 Th - Hf /3 - Nb /16 discrimination diagram Ga ± VMS Cu Pb Zn Au Ag Co Mn Sn Se Bi Cd In Ga Te Ge Noranada Kuroko Cyprus Besshi 4 23 Th - Hf /3-2 Nb /16 LREE HREE 33 HREE LREE Graf 34

9 2 345 HREE HREE 35 Table Main feature comparison table of Shujigou Cu - Zn deposit with Noranda - type deposits - Cu Zn Cu Zn Au Ag S > 2. 5 Ga > 1. 8 Ga > 2. 5 Ga 6 1. D ZHANG Ya-jing. Study on the geological features and metallogenic model of Hongtoushan copper-zinc deposit K Rb Ba Liaoning Province master's degree thesis D. Changchun Jilin University Th Ta Zr Hf Ti 2. Th /Ta Ce /Yb La /Nb La /Ta M PEI Rong-fu WU Liang-shi XIONG Qun-rao et al. Large metallogenic bias with convergent tectonic anomalies field in China M. Beijing Geological Publishing 3 House M. 试验样品测试均在中国地质科学院廊坊物化探研究测试中心完成, 并向匿名审稿人提出的宝贵修改意见表示感谢! PEI Rong-fu. Chinese deposits mode M. Beijing Geological Publishing House M.

10 CHENG Yu-chuan ZHU Yu-sheng. China metallogenic model M. Beijing Geological Publishing House J. SHRIMP U-Pb J GU Lian-xing TANG Xiao-qian ZHENG Yuan-chuan et al. Deformation metamorphism and ore-component remobilization of the Archaean massive sulphide deposit at Hongtoushan Liaoning Province J. Acta Petrologica M SHEN Bao-feng PENG Xiao-liang LUO Hui. Precambrian deposits and structural China M. Beijing Earthquake Press WANG Yu-sheng SONG Biao YANG Chun et al. Zircon SHRIMP U-Pb geochronology of Archaean rocks from the Fushun-Qingyuan area Liaoning Province and its geological significance J. Acta Geologica Sinica Sinica J. D GU Lian-xing TANG Xiao-qian WU Chang-zhi et al. YU Feng-jin. The study of metallogenic model and prospecting pattern of Hongtoushan-type deposit Ph. D dissertation Mechanisms of Cu-Au enrichment in ore mylonites of the Hongtoushan massive sulphide deposite Liaoning NE D. Shenyang Northeastern University China J. Earth Science Frontier J M ZHANG Qiu-sheng LI Shou-yi LIU Lian-deng. Precambrian geology and mineralization China M. Changchun Jilin People's Publishing House ZHANG Run-feng YU Feng-jin YANG Tie-jun et al. Analysis on the resource potential of Shujigou district in Hongtoushan copper mine J. Non-Ferrous Mining and Metallurgy Saunders A D Tarney J. M DENG Gong-quan. The nonferrous metals geology of the northern margin of the North China block and adjacent areas M. Beijing Geological Publishing House J Saunders A D Tarney J YANG Wu-liang et al. The geochemistry of bsaltic volcanism in the back-arc basin J. Geology Geochemistry M. J LI Jun-jian SHEN Bao-feng LI Shuang-bao et al. The ZHANG Qi ZHANG Zong-qing SUN Yong et al. geology and gold mineralization of Kiyohara-Jiapigou Trace element and isotopic geochemistry of metabasalts greenstone belt M. Tianjin Science and Technology from Danfeng Group DFG in Shangxian-Danfeng area Shanxi Press Province J. Acta Petrologica Sinica J. 17 ZHANG Guo-bin YANG Yan-chen WANG Jian et al. Geology geochemistry and genesis of the hotspring-type MAO Bao-de SHEN Bao-feng LI Jun-jian et al. Archean Sipingshan gold deposit eastern Hei- geological evolutong and metallogeny in Qingyuan area northern Liaoning Province J. Progress in Precambrian Research longjiang Province Northeast China J. International Geology Review Wilson M. Igneous petrogenesis M. London Unwin 11. Hyman Press

11 Boynton W V. Geochemistry of the rare earth elements meteorite studies C / /Henderson P. Rare Earth Element Geochemistry. Elsevier Irvine T N Barger W R A. A guide to the chemical classifieation of the common volcanic rocks J. Canadian Journal of Earth Sciences Wood D A. The application of a Th-Hf-Ta diagram to 27. VMS problem of tectonomagmatic classification and to establishing the nature of crustal contamination of basalt lavas of the British Tertiary volcanic province J. Earth Planet Sci Lett J HU Yong-bin ZENG Pu-sheng YIN Guang-hou et al. Metallogenic metal source of Luchun VMS Zn-Pb-Cu 22. polymetallic deposit Yunnan Province J. Global Geology J HOU Xiao-guang YE Song-qing YANG Yan-chen et al. Geological and geochemical characteristics and tec- 28 Sangster D F Scott S D. Precambrian statabound massive Cu-Zn-Pb sulfide deposits of North America C Wolf K A. Handbook of Strata-Bound and Stratiform tonic settings of Sanshi'erzhan gold deposit Hei- Ore Deposits. Amsterdam. Elsevier longjiang Province J. Global Geology J OU Yang-jing WANG Shuang-shuang YU Man et al. Igneous assemblages of different origin in island arc and their geological significances J. Gansu Geology J ZHANG Zeng-jie XING Shu-wen MA Yu-bo et al. Zircon U-Pb dating of the biotite-beraing plagioclase amphibolite from Hongtoushan Cu-Zn deposit Liaoning Province China and its implications on the exploration of VMS J. Journal of Jilin University Earth Science Edition J ciated massive sulfide deposits J. Economic Geolo-. gy SHA De-ming ZHAO Dong-fang ZHANG Sen et al. Structural deformation and its ore-control of the Hongtoushan type of copper deposits in Liaoning Province China J. Geology and Resources Franklin J M Sangster D F Lydon J W. Volcanic-asso- 30 Solomon M. Volcanic massive sulphide deposits and their host rocks a review and explanation C Wolf K A. Handbook of Strata-bound and Stratiform Ore Deposits. Amsterdam. Elsevier Volcanic sulfide deposits and their 31 Hutchinson R W. metallogenic significance J. Economic Geology U-Pb 32 Large R R. Australian volcanic-hosted massive sulfide deposits features styles and genetic models J. E- conomic Geology M LI Wen-da translated. REE applicated in the deposit research M. Beijing Geological Publishing House Craf J L. Rare earth element as hydrothermal tracers. during the formation of massive deposits in volcanic rocks J. Economic Geology YANG Zhen-sheng YU Bao-xiang. Poly-deformation of J the archaean greenstone belt in the Hongtoushan area northern Liaoning Province J. Journal of Changchun PENG Xiao-liang SHEN Bao-feng. Source of constituents and genesis of massive sulfide deposits in northern 26. Liaoning Province J. Contributions to Geology and University of Geology J. Mineral Resources

NE NW NE NW 6 NE NW NE ~ 85 1 ~ 4 NW NE 702 NE NW 1 NE30 ~ 50 SE 50 ~ 60 1a I II I 73 m 3. 5 m g /t II 62 m 60 ~ 100

NE NW NE NW 6 NE NW NE ~ 85 1 ~ 4 NW NE 702 NE NW 1 NE30 ~ 50 SE 50 ~ 60 1a I II I 73 m 3. 5 m g /t II 62 m 60 ~ 100 34 2 2015 6 GLOBAL GEOLOGY Vol. 34 No. 2 Jun. 2015 1004 5589 2015 02 0385 11 1 1 2 2 1 1 1. 130061 2. 702 157021 σ < 3. 3 Rb Ba K Pb LILE Nb Ta P Ti HFSE LREE HREE Nb /Ta 14. 7 Zr /Hf 26. 23 ~ 38. 37 P618.

GLOBAL GEOLOGY Vol. 33 No. 2 Jun : 辽宁树基沟铜锌块状硫化物矿床产于太古宙绿岩带中, 矿床形成后经历了强烈的变质和变形, 变质程度达到高级角闪岩相 通过含矿岩系地球

GLOBAL GEOLOGY Vol. 33 No. 2 Jun : 辽宁树基沟铜锌块状硫化物矿床产于太古宙绿岩带中, 矿床形成后经历了强烈的变质和变形, 变质程度达到高级角闪岩相通过含矿岩系地球