314 50%, (Sorong Fault) (Jason et al., 1995; Xвopoвa, 1990),,,,,,,,, 1 区域成矿背景,,, (, 1998),,, - ( 1),,,,, 图 1 印度尼西亚塔岛区域地质图 ( 右下图据 Akira et al., 2005) F

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1 May : Acta Geoscientica Sinica Vol.32 No.3: www. 地球学报.com 1), 1), 2), 2) 1),, ; 2), 摘要 :, 1, 50%,,, ;,, ; ( ), 关键词 : 中图分类号 : P618.44; P618.31; P595 文献标志码 : A doi: /cagsb Geological and Geochemical Characteristics and Genesis of the Sn-Fe Polymetallic Deposit in Taliabu Island, Indonesia DING Jun 1), ZHANG Shu-gen 1), XU Zhong-fa 2), QIN Xin-long 2) 1) Key Laboratory of Metallogenic Prediction of Nonferrous Metals, Ministry of Education, School of Geoscience and Info-Physics, Central South University, Changsha, Hunan ; 2) East China Mineral Exploration and Development Bureau, Nanjing, Jiangsu Abstract: A large-size Sn-Fe polymetallic deposit, with more than one hundred million tons of iron reserves whose average grade (total Fe) is above 50%, has been recently discovered in Taliabu Island, Indonesia. Skarn and ore-magma are the main genetic types of the ore deposit, with the existence of hydrothermal type. These genetic types constitute a complete metallogenic system. The Indo-Chinese monzogranite derived from crustal partial melting magma is the main metallogenic material source and ore-control factor. Through high-degree evolution, the magma produced Fe-rich ore-magma injection and subsequently formed ore bodies, which mainly occurred in drastic variation places along rock mass boundary, soft and hard rock boundary in the contact zone between granite and Carboniferous strata. Skarn type iron ore was formed in the contact zone between Carboniferous (dolomitic) marble, calciferous metasandstone and granite. The ore deposit belonged to Eastern Australia metallogenic belt during its formation, and then moved to Southeast Asia metallogenic belt by Himalayan movement. Key words: Taliabu Island; geology and geochemistry; Sn-Fe polymetallic deposit skarn type; ore magma type (, ),,, 1, : ; : : :,, 1982, : , : dzkingdj@163.com

2 314 50%, (Sorong Fault) (Jason et al., 1995; Xвopoвa, 1990),,,,,,,,, 1 区域成矿背景,,, (, 1998),,, - ( 1),,,,, 图 1 印度尼西亚塔岛区域地质图 ( 右下图据 Akira et al., 2005) Fig. 1 Regional geological map of Taliabu Island, Indonesia(lower right map from Akira et al., 2005)

3 : 矿床地质特征 2.1 Menanga (Pzmm) - Mangole (PTRmv) Bobong (Jbs) Buya (Jb)( 2),,,, ( ), ( )() 图 2 塔岛锡铁多金属矿床矿区地质图 (Jb Jbs Pzmm PTRmv PTRbg 同图 1) Fig. 2 Geological map of the Taliabu Sn-Fe polymetallic deposit(jb, Jbs, Pzmm, PTRmv, PTRbg are the same as Fig. 1) Pzmm, Pzmm, Bobong Buya, - -,, 2.2,,,, Pzm Pzmm, Pzmm Jbs Jb Pzmm,, NE 100º~110º,, 90º,, ()(- ), (- )() 2.3,,,,,, Pzmm,,,, ( ),,,, 2.4,,

4 , Pzmm, ( ),,,, m, m, m,, Ⅱ-1, Pzmm,,,,,,,, 1600 m, 600 m, 110 m 3000,,, 35 ~50, 85, Sn, 2.6,,,, 1 2.7, 5, 矿床地球化学 3.1, :, : DX-120 Ion Chromatograph ( ), : Varian-3400 () ( 3), : (1)Ca 2+ Na + K + NH 4, Li, Mg 2+ F Cl 2 SO 4, NO 3 PO 4 3 表 1 塔岛锡铁多金属矿床不同成因类型铁矿体特征 Table 1 Characteristics of ore bodies of different genetic types in the Taliabu Sn-Fe polymetallic deposit (1) ; (2) ; (3) ; (4), (1) ; (2) ; (3), (1), ; (2) ; (3),,,,,,,,,, 1cm

5 : 317 Table 2 表 2 矿物生成顺序 Generation sequence of minerals H 2 O, CO 2, H 2, O 2 N 2 CO H 2 O CO 2 CH 4 H 2, (Cl-(F)-Mg-Ca- (K-Na)) (2) Li, (3) CH 4, C 2 H 2 C 2 H 6 因此, (Giggenbach, 1994), (>400 ) CH 4,, (4) R

6 318 Table 3 表 3 塔岛锡铁多金属矿床流体包裹体气液相成分 Liquid and gaseous compositions of fluid inclusions of the Taliabu Sn-Fe polymetallic deposit (μg/g) (μg/g) F Cl NO 3 PO 4 SO 4 Li Na NH 4 K Ca H 2 N 2 CO 2 CH 4 C 2 H 2 C 2 H 6 H 2 O R YS YK YK YK YS YS YS YS : R (H 2 +CH 4 +CO/CO 2 ); YK13-; YK09- ; YK10-; YS12-( 1 cm) ; YS13-( 0.5 cm) 0.02~0.08,, 3.2 C O H C H O (, 2010) C O H:, : MAT 253 EM ; : BrF 5,, ; : ±2,,, 4 δ 18 O 2.5, δ 18 O(2 6 )(, 1995)δ 13 C (-5.9 ), δ 13 C(-6-8 )(, 1995), δd-δ 18 O ( 3),,, δ 18 O δ 18 O (6 10 )(, 2006), 表 4 塔岛锡铁多金属矿床 C H O 同位素组成 Table 4 C, H and O isotope composition of the Taliabu Sn-Fe polymetallic deposit ( ) δ 18 O V-SMOW δd V-SMOW δ 13 C V-PDB YS14 6.7(7.9) 78( 24.46) YK13 1.8(7.81) YK09 1.9(8.41) YK10 2.5(4.11) YS12 4.9(6.34) 74( 14.5) YS16 5.8(7.3) 71( 28) YS17 8.8(9.78) 21.4(δ 18 O V-PDB ) 5.9 :, O : 10 3 lnα( - )= /T /T+2.38 (, 2000) (400 ); 10 3 lnα( - )=-1.5 (Mark et al., 2000) (400 ); 10 3 lnα( - )= /T /T+2.45 (, 2000) (340 ); 10 3 lnα( - ) /T 2 (Bottinga, 1973) (400 ); 10 3 lnα( - )= /T /T+1.71 (, 2000) (200 ); H :10 3 lnα( - )= /T (, 2000) (400 ); 10 3 lnα( - )=-29 (Graham, 1984) (400 ); 10 3 lnα( - )= /T (, 2000) (340 )

7 : 319 图 3 流体 δd-δ 18 O 图 ( 底图据郑永飞, 2000) Fig. 3 δd-δ 18 O plot of fluids(based diagram after ZHENG Yong-fei, 2000) δ 18 O 5,,, δ 18 O (9.78 ) δ 13 C V-PDB δ 18 O V-SMOW -δ 13 C V-PDB ( 4), 4 讨论 4.1,,,,, 图 4 方解石中 δ 18 O V-SMOW -δ 13 C V-PDB 图 ( 底图据孙景贵, 2001) Fig. 4 δ 18 O V-SMOW -δ 13 C V-PDB diagram of calcite(based diagram after SUN Jing-gui, 2001),,, 4.2,, ( 2),, SO 2-4 F - Cl - Li +, (400 ), S,,,,, F -,,,, S,, SO 2-4 F - Cl - Li +,,, H 2,, CO 2 SO 2-4,, S, 4.3,, (W-Sn-Mo-Cu- Pb-Zn-Au),,,,,, : (1) Zn Sn Bi Cu, ; (2),

8 320, (Cadia) (Park, 1972), ; (3),,,, (Buru) (Obi), 4.4,,,, -,,, Fe Mg Mn Zn Sn Bi Cu,,,,, (, 1985),,,,,, ;,,, ;,,,,,,,,,, 5 结论 (1),,, (2) Pzmm, Pzmm Pzm, (3),, (4), 参考文献 : M P, J [M].,,,. : [M]. :.,,,, : [J]., 22(10): ,,, [J]., 16(1): , [J]., 31(4): ,,, [J]., 20(1): XВOPOВA И Β : [J].,., (2): , [M]. :. References: AKIRA I, SATOSHI O Primary ore mineral sssemblage and fluid inclusion study of the Batu Hijau porphyry Cu-Au deposit, Sumbawa, Indonesia[J]. Resourece Geology, 55(3):

9 : ATHERTON M P, TARNEY J Origin of granite batholiths-geochemical evidence[m]. Translated by WANG De-zi, LIU Chang-shi, ZHOU Jin-cheng. Beijing: Geological Publishing House(in Chinese). BOTTINGA Y, JAVOYA M Comments on oxygen isotope geothermometry[j]. Earth and Planetary Science Letters, 20(2): CHEN Guo-da Crustobody Geotectonics of Asian Continent and Adjacent Seas[M]. Changsha: Hunan Education Press(in Chinese). GIGGENBACH W F, SHEPPARD D S, ROBINSON B W, STEWART M K, LYON G L Geochemical structure and position of the Waiotapu geothermal field, New Zealand[J]. 22(10): (in Chinese with English abstract). LU Deng-rong, JI Jin-sheng, LÜ Ren-sheng, TAO Hong-xiang Geochemical characteristics and genesis of Yamansu iron deposit of Xinjiang[J]. Northwestern Geology, 16(1): 15-19(in Chinese). MARK G, FOSTER D R W Magmatic-hydrothermal albite-actinolite-apatite-rich rocks from the Cloncurry district, NW queensland, Australia[J]. Lithos, 51: PAN Xiao-fei, LIU Wei Characteristics, Derivation and evolution of ore-forming fluids in typical gold deposits of the Beishan metallogenic belt in Gansu-Xinjiang border area[j]. Acta Geoscientica Sinica, 31(4): (in Chinese with English abstract). PARK C.F The Iron Ore Deposits of the Pacific Basin[J]. Geothermics, 23(6): GRAHAM C M, HARMON R S, SHEPPARD S M F Experimental hydrogen isotope studies: Hydrogen isotope exchange between amphibole and water[j]. Am. Mineralogist, 69: JASON R A, HALL R Evolution of the boundary between the Philippine Sea Plate and Australia: Palaeomagnetic evidence from eastern Indonesia[J]. Tectonophysics, 251: JIANG Shao-yong, ZHAO Kui-dong, JIANG Yao-hui, LING Hong-fei, NI Pei New type of tin mineralization related to granite in South China: evidence from mineral chemistry, element and isotope geochemistry[j]. Acta Petrologica Sinica, Economic Geology, 67(3): SUN Jing-gui, HU Shou-xi, SHEN Kun, YAO Feng-liang Research on C, O isotopic Geochemistry of intermediate-basic and intermediate-acid dykes in gold fields of Jiaodong peninsula[j]. Acta Petrologica et Mineralogica, 20(1): 47-56(in Chinese with English abstract). XВOPOВA И Β Indonesia to the sedimentary characteristics-reported slot one of the basic structure and the terrain, features[j]. Translated by GUO Yu-kun. Offshore Oil, (2): 68-74(in Chinese). ZHENG Yong-fei, CHEN Jiang-feng Stable isotopic geochemistry[m]. Beijing: Science Press(in Chinese).

1 103 to and the salinity varies from % to % NaCleqv. The homogenization temperatures of vaporrich fluid inclusions range from 415.

1 103 to and the salinity varies from % to % NaCleqv. The homogenization temperatures of vaporrich fluid inclusions range from 415. 34 1 2015 3 GLOBAL GEOLOGY Vol. 34 No. 1 Mar. 2015 1004 5589 2015 01 0102 11 1 1 2 1 1 1 3 1. 130061 2. 024005 3. 024000 5 Ⅰ-1 VL LV NaCl SL VL 375. 4 ~ 479. 8 10. 73% ~ 13. 73% NaCleqv LV 415. 2 ~ 458.