Age, genesis, and tectonic setting of the Mo-W mineralized Dongshanwan granite porphyry from the Xilamulun metallogenic belt, NE China

Abstract

The Xilamulun molybdenum polymetallic metallogenic belt in eastern Inner Mongolia forms one of the most important Mo metallogenic belts in northeastern China. The Dongshanwan porphyry Mo-W polymetallic deposit, in the northeastern part of the Xilamulun metallogenic belt, occurs along the periphery of a granite porphyry and consists of Mo-W-Ag sulfide and oxide disseminations and veinlets in hydrothermal assemblages. LA-ICP-MS zircon U-Pb dating of the Dongshanwan granite porphyry yields a crystallization age of 142.15±0.91 Ma, whereas molybdenite Re-Os isotopic dating model ages are of 139.9-141.5 Ma and an isochron age is of 140.5±3.2 Ma (MSWD=1.2). The age consistency indicates that the Dongshanwan deposit was a product of Early Cretaceous magmatism. The Dongshanwan granite porphyry is a high-alkali high-potassium intrusion and has high SiO₂ (75.39 wt.%-76.15 wt.%), low Al2O3 (12 wt.%-13 wt.%), Ba, Ti, P, and Sr contents, with negative Eu anomalies. The Y/Nb ratios are comparable to those of average continental crust and island arc basalts, corresponding to type-A2 granites. Our geochemical data indicate that the granite porphyry emplaced in an Early Cretaceous post-orogenic extensional environment following Mongol-Okhotsk oceanic subduction and subsequent continental collision.

Keywords

Dongshanwan porphyry Mo-W deposit / zircon U-Pb dating / Re-Os dating / geochemistry / Xilamulun metallogenic belt

References

[1] Bai L. A., Sun J. G., Zhang Y., . Genetic Type, Miner-Alization Epoch and Geodynamical Setting of Endogenous Copper Deposits in the Great Xing’an Range. Acta Petrologica Sinica, 2012, 28(2): 468-482.

[2] Chen Z. G., Ghang L. C., Wu H. Y., . Geochemistry Study and Tectonic Background of A Style Host Granite in Nianzigou Molybdenum Deposit in Xilamulun Molybdenum Deposit in Xilamulun Molybdenum Metallogenic Belt, Inner Mongolia. Acta Petrologica Sinica, 2008, 24(4): 879-889.

[3] Ding Q. F., Yan W., Zhang B. L. Sulfur- and Lead-Isotope Geochemistry of the Balugou Cu-Pb-Zn Skarn Deposit in the Wulonggou Area in the Eastern Kunlun Orogen, NWChina. Journal of Earth Science, 2016, 27(5): 740-750.

[4] Du A. D., He H. L., Yin N. W. A Study of the Rheniumosmium Geochronometry of Molybdenites. Acta Geologica Sinica, 1994, 8(2): 171-181.

[5] Du A. D., Qu W. J., Wang D. H., . Subgrain-Size Decoupling of Re and 187Os with in Molybdenite. Mineral Deposits, 2007, 26(5): 572-580.

[6] Duan X. X., Zeng Q. D., Yang Y. H., . Triassic Magmatism and Mo Mineralization in Northeast China: Geochronological and Isotopic Constraints from the Laojiagou Porphyry Mo Deposit. International Geology Review, 2015, 57(1): 55-75.

[7] Eby G. N. The A-Type Granitoids: A Review of Their Occurrence and Chemical Characteristics and Speculations on Their Petrogenesis. Lithos, 1990, 26(1/2): 115-134.

[8] Eby G. N. Chemical Subdivision of the A-Type Granitoids: Petrogenetic and Tectonic Implications. Geology, 1992, 20(7): 641-644.

[9] Fu Z. R., Chen H. J. Geological Characteristics and Prospect of Mineral Exploration of Dongshanwan W-Sn-Be Deposit at Balinzuo County of Inner Mongolia. Journal of Guilin Institute of Technology, 2004, 24(2): 148-151.

[10] Gou J., Sun D. Y., Zhao Z. H., . Zircon LA-ICP MSU-Pb Dating and Petrogenesis of Rhyolites in Baiyingaolao Formation from the Southern Manzhouli, Inner-Mongolia. Acta Petrologica Sinica, 2010, 25(1): 333-344.

[11] Hassanen M. A. Post-Collision, A-Type Granites of Homrit Waggat Complex, Egypt: Petrological and Geochemical Constraints on Its Origin. Precambrian Research, 1997, 82(3): 211-236.

[12] Hoskin P. W. O., Black L. P. Metamorphic Zircon Formation by Solid-State Recrystallization of Protolith Igneous Zircon. Journal of Metamorphic Geology, 2000, 18(4): 423-439.

[13] Hou Z. Q. Porphyry Cu-Mo-Au Deposits: Some New Insights and Advances. Earth Science Frontiers, 2004, 1(3): 131-144.

[14] Hou Z. Q., Mo X. X., Gao Y. F., . Adakite, A Possible Host Rock for Porphyry Copper Deposits: Case Studies of Porphyry Copper Belts in Tibetan Plateau and in Northern Chile. Mineral Deposits, 2003, 22(1): 1-12.

[15] Hou Z. Q., Yang Z. M., Qu X. M., . The Miocene Gangdese Porphyry Copper Belt Generated during Post-Collisional Extension in the Tibetan Orogen. Ore Geology Reviews, 2009, 36(1): 25-51.

[16] Hu Z. C., Gao S., Liu Y., . Signal Enhancement in Laser Ablation ICP-MS by Aaddition of Nitrogen in the Central Channel Gas. Journal of Analytical Atomic Spectrometry, 2008, 23(8): 1093-1101.

[17] Jahn B. M., Wu F. Y., Chen B. Granitoids of the Central Asian Orogenic Belt and Continental Growth in the Phanerozoic. Geological Society of America Special Papers, 2000, 350(1/2): 181-193.

[18] King P. L., Chappell B. W., Allen C. M., . Are A-Type Granites the High-Temperature Felsic Granites? Evidence from Fractionated Granites of the Wangrah Suite. Australian Journal of Earth Sciences, 2001, 48(4): 501-514.

[19] King P. L., White A. J. R., Chappell B. W., . Characterization and Origin of Aluminous A-Type Granites from the Lachlan Fold Belt, Southeastern Australia. Journal of Petrology, 1997, 38(3): 371-391.

[20] Kravchinsky V. A. C. J. P., Harbert W. P., . Evolution of the Mongol-Okhotsk Ocean as Constrained by New Palaeomagnetic Data from the Mongol-Okhotsk Suture Zone, Siberia. Geophysical Journal International, 2002, 148(1): 34-57.

[21] Li J. F. Mineralization and Periphery Metallogenic Prediction of the Hongling Pb-Zn Polymetallic Deposit in Chifeng, Inner Mongoli, 2014, 100-103.

[22] Li, J. Y., Mo, S. G., He, Z. J., 2004. The Timing of Crustal Sinistral Strike-Slip Movement in the Northern Great Khing’an Ranges and Its Constraint on Reconstruction of the Crustal Tectonic Evolution of NEChina and Adjacent Areas since the Mesozoic. Earth Science Frontiers 172(3–4): 223–249

[23] Li Z. M., Huang H. L., Zhang Z., . The Exploration Report of the Dongshanwan Polymetal Deposit in Balinzuoqi, Inner Mogolia, 2010, 1-57.

[24] Liu J. L., Sun F. Y., Lin B. L., . Geochronology, Geochemistry and Zircon Hf Isotope of Miantian Granodiorite Intrusion in Yanbian Region, Southern-Jinlin Province and Its Geological Significance. Earth Science–Journal of China University of Geosciences, 2015, 40(1): 49-60.

[25] Liu J. M., Zhao Y., Sun Y. L., . Recognition of the Latest Permian to Early Triassic Cu-Mo Mineralization on the Northern Margin of the North China Block and Its Geological Significance. Gondwana Research, 2010, 17(1): 125-134.

[26] Liu Y. S., Hu Z. C., Gao S., . In Situ Analysis of Major and Trace Elements of Anhydrous Minerals by LA-ICP-MS without Applying an Internal Standard. Chemical Geology, 2008, 257(1): 34-43.

[27] Liu Y. S., Hu Z. C., Zong K. Q., . Reappraisement and Refinement of Zircon U-Pb Isotope and Trace Element Analyses by LA-ICP-MS. Chinese Science Bulletin, 2010, 55(15): 1535-1546.

[28] Lowell J. D., Guilbert J. M. Lateral and Yertical Alteration- Mineralization Zoning in Porphyry Ore Deposits. Economic Geology, 1970, 65(4): 373-408.

[29] Ludwig K. R. ISOPLOT 3.0: A Geochronological Toolkit for Microsoft Excel, 2003, Berkeley: Berkeley Geochronology Center Special Publication, 1-70.

[30] Ma X. H., Chen B., Lai Y., . Petrogenesis and Minerlization Choronology Study on the Aolunhua Porphyry Mo Deposit Inner Mongolia and Its Geological Implications. Acta Petrologica Sinica, 2009, 25(11): 2939-2950.

[31] Mao J. W., Xie G. Q., Zhang Z. H., . Mesozoic Largescale Metallogenic Pulses in North China and Corresponding Geodynamic Settings. Acta Petrologica Sinica, 2005, 21(1): 169-188.

[32] Mao J. W., Zhao Z. C., Zhang Z. L., . Re-Os Isotopic Dating of Molybdenites in the Xiaoliugou W (Mo) Deposit in the Northern Qilian Mountains and Its Geological Significance. Geochimica et Cosmochimica Acta, 1999, 63(11): 1815-1818.

[33] Meng E., Xu W. L., Yang D. B., . Zircon U-Pb Chronology, Geochemistry of Mesozoic Volcanic Rocks from the Lingquan Basin in Manzhouli Area, and Its Tectonic Implications. Acta Petrologica Sinica, 2011, 27(4): 1209-1226.

[34] Meng Q. R. What Drove Late Mesozoic Extension of the Northern China-Mongolia Tract?. Tectonophysics, 2003, 369(3): 155-174.

[35] Miller C., Schuster R., Klötzli U., . Post-Collisional Potassic and Ultrapotassic Magmatism in SW Tibet: Geochemical and Sr-Nd-Pb-O Isotopic Constraints for Mantle Source Characteristics and Petrogenesis. Journal of Petrology, 1999, 40(9): 1399-1424.

[36] Nie F. J., Zhang W. Y., Du A. D., . Re-Os Isotopic Dating on Molybdenite Separates from the Xiaodonggou Porphyry Mo Deposit, Hexigten Qi, Inner Mongolia. Acta Geologica Sinica, 2007, 81(7): 898-904.

[37] Peccerillo A., Taylor S. R. Geochemistry of Eocene Calc-Alkaline Volcanic Rocks from the Kastamonu Area, Northern Turkey. Contributions to Mineralogy and Petrology, 1976, 58(1): 63-81.

[38] Richards J. P. Postsubduction Porphyry Cu-Au and Epithermal Au Deposits: Products of Remelting of Subduction-Modified Lithosphere. Geology, 2009, 37(3): 247-250.

[39] Rickwood P. C. Boundary Lines within Petrologic Diagrams which Use Oxides of Major and Minor Elements. Lithos, 1989, 22(4): 247-263.

[40] Shen P., Shen Y. C., Pan H. D., . Baogutu Porphyry Cu-Mo-Au Deposit, West Junggar, Northwest China: Petrology, Alteration, and Mineralization. Economic Geology, 2010, 105(5): 947-970.

[41] Sillitoe R. H. Porphyry Copper Systems. Economic Geology, 2010, 105(1): 3-41.

[42] Smoliar M. I., Walker R. J., Morgan J. W. Re-Os Ages of Group IIA, IIIA, IVA, and IVB Iron Meteorites. Science, 1996, 271(5252): 1099-1102.

[43] Sun S. S., McDonough W. Chemical and Isotopic Systematics of Oceanic Basalts: Implications for Mantle Composition and Processes. Geological Society, London, Special Publications, 1989, 42(1): 313-345.

[44] Wakita K., Metcalfe I. Ocean Plate Stratigraphy in East and Southeast Asia. Journal of Asian Earth Sciences, 2005, 24(6): 679-702.

[45] Wang F., Zhou X. H., Zhang L. C., . Late Mesozoic Volcanism in the Great Xing’an Range (NE China): Timing and Implications for the Dynamic Setting of NE Asia. Earth and Planetary Science Letters, 2006, 251(1): 179-198.

[46] Wang J. G., He Z. H., Xu W. L. Petrogenesis of Riebeckite Rhyolites in the Southern Da Hinggan Mts.: Geohronological and Geochemical Evidence. Acta Petrologica Sinica, 2013, 29(3): 853-863.

[47] Wang L. T., Wang L. B., Wang Y. W. REE Geochemistry of the Huangguangliang Skarn Fe-Sn Deposit, Inner Mongolia. Acta Petrologica Sinica, 2002, 18(4): 575-584.

[48] Watson E. B., Harrison T. M. Zircon Saturation Revisited: Temperature and Composition Effects in a Variety of Crustal Magma Types. Earth and Planetary Science Letters, 1983, 64(2): 295-304.

[49] Whalen J. B., Currie K. L., Chappell B. W. A-Type Granites: Geochemical Characteristics, Discrimination and Petrogenesis. Contributions to Mineralogy and Petrology, 1987, 95(4): 407-419.

[50] Windley B. F., Alexeiev D., Xiao W. J., . Tectonic Models for Accretion of the Central Asian Orogenic Belt. Journal of the Geological Society, 2007, 164(1): 31-47.

[51] Wu F. Y., Li X. H., Yang J. H., . Discussions on the Petrogenesis of Granites. Acta Petrologica Sinica, 2007, 23(6): 1217-1238.

[52] Wu F. Y., Sun D. Y., Zhang G. L., . Deep Geodynamics of Yanshan Movement. Geological Journal of China Universities, 2000, 6(3): 379-388.

[53] Wu G., Chen Y. J., Sun F. Y., . Geochemistry of the Late Jurassic Granitoids in the Northern End Area of Da Hinggan Mountains and Their Geological and Prospecting Implications. Acta Petrologica Sinica, 2008, 24(4): 899-910.

[54] Wu, H. Y., Zhang, L. C., Chen, Z. G., et al., 2008. Geochemistries, Tectonic Setting and Mineralization Potentiality of the Ore-Bearing Monzogranite in the Kulitu Molybdenum (Copper) Deposit of Xarmoron Metallogetic Belt, Inner Mongolra. Acta Petrologica Sinica 24(4): 867–878 (in Chinese with English Abstract)

[55] Wu F. Y., Sun D. Y., Li H., . A-Type Granites in Northeastern China: Age and Geochemical Constraints on Their Petrogenesis. Chemical Geology, 2002, 187(1): 143-173.

[56] Xin J. The Polymetallic Metallogenic Series and Exploration Modle in the Southeast of Inner Mongolia, 2013, Beijing: China University of Geosciences, 24-26.

[57] Xu F., Ren Z. H., Zhang B. S. Geological Characteristics of the Dongshanwan Tungsten and Molybden Mine, Balinzou Qi, Inner Mongolia. Mineral Resource Geology, 2012, 26(1): 24-29.

[58] Xu M. J., Xu W. L., Meng E., . LA-ICP-MS Zircon U-Pb Chronology and Geochemistry of Mesozoic Volcanic Rocks from the Shanghulin-Xiangyang Basin in Ergun Area, Northeastern Inner Mongolia. Geological Bulletin of China, 2011, 30(9): 1321-1338.

[59] Xu W. L., Ji W. Q., Pei F. P., . Triassic Volcanism in Eastern Heilongjiang and Jilin Provinces, NEChina: Chronology, Geochemistry, and Tectonic Implications. Journal of Asian Earth Sciences, 2009, 34(3): 392-402.

[60] Xu W. L., Pei F. P., Wang F., . Spatial-Temporal Relationships of Mesozoic Volcanic Rocks in NE China: Constraints on Tectonic Overprinting and Transformations between Multiple Tectonic Regimes. Journal of Asian Earth Science, 2013, 74: 167-193.

[61] Zeng Q. D., Liu J. M., Chu S. X., . Re-Os and U-Pb Geochronology of the Duobaoshan Porphyry Cu-Mo-(Au) Deposit, Northeast China, and Its Geological Significance. Journal of Asian Earth Sciences, 2014, 79(2): 895-909.

[62] Zeng Q. D., Liu J. M., Qin F., . Geochronology of the Xiaodonggou Porphyry Mo Deposit in Northern Margin of North China Craton. Resource Geology, 2010, 60(2): 192-202.

[63] Zeng Q. D., Liu J. M., Zhang Z. L. Re-Os Geochronology of Porphyry Molybdenum Deposit in South Segment of Da Hinggan Mountains, Northeast China. Journal of Earth Science, 2010, 21(4): 392-401.

[64] Zeng Q. D., Liu J. M., Zhang Z. L., . Ore-Forming Time of the Jiguanshan Porphyry Molybdenum Deposit, Northern Margin of North China Craton and the Indosinian Mineralization. Acta Petrologica Sinica, 2009, 25(2): 393-398.

[65] Zeng Q. D., Liu J. M., Zhang Z. L., . Geology and Geochronology of the Xilamulun Molybdenum Metallogenic Belt in Eastern Inner Mongolia, China. International Journal of Earth Sciences, 2011, 100(8): 1791-1809.

[66] Zeng Q. D., Sun Y., Chu S. X., . Geochemistry and Geochronology of the Dongshanwan Porphyry Mo-W Deposit, Northeast China: Implications for the Late Jurassic Tectonic Setting. Journal of Asian Earth Sciences, 2015, 97(2): 472-485.

[67] Zeng Q. D., Sun Y., Duan X. X., . U-Pb and Re-Os Geochronology of the Haolibao Porphyry Mo-Cu Deposit, NEChina: Implications for a Late Permian Tectonic Setting. Geological Magazine, 2013, 150(6): 975-985.

[68] Zeng Q. D., Yang J. H., Liu J. M., . Genesis of the Chehugou Mo-Bearing Granitic Complex on the Northern Margin of the North China Craton: Geochemistry, Zircon U-Pb Age and Sr-Nd-Pb Isotopes. Geological Magazine, 2012, 149(5): 753-767.

[69] Zhang H. F., Parrish R., Zhang L., . A-Type Granite and Adakitic Magmatism Association in Songpan-Garze Fold Belt, Eastern Tibetan Plateau: Implication for Lithospheric Delamination. Lithos, 2007, 97(3): 323-335.

[70] Zhang J. H. Chronology and Geochemistry of the Mesozoic Volcanic Rocks in the Great Xin’an Range Northeastern China, 2009, Wuhan: China University of Geosciences, 40-56.

[71] Zhang J. H., Gao S., Ge W. C., . Geochronology of the Mesozoic Volcanic Rocks in the Great Xing’an Range, Northeast China: Implications for Subduction-Induced Delamination. Chemical Geology, 2010, 276(3): 144-165.

[72] Zhang J. H., Ge W. C., Wu F. Y., . Large-Scale Early Cretaceous Volcanic Events in the Northern Great Xing’an Range, Northeastern China. Lithos, 2008, 102(1): 138-157.

[73] Zhang K. X., Pan G. T., He W. H., . New Division of Tectonic-Strata Superregion in China. Earth Science–Journal of China University of Geosciences, 2016, 40(2): 206-233.

[74] Zhang L. C., Wu H. Y., Xiang P., . Ore-Forming Processes and Mineralization of Complex Tectonic System during the Mesozoic: A Case from Xilamulun Cu-Mo Metallogenic Belt. Acta Petrologica Sinica, 2010, 26(5): 1351-1362.

[75] Zhang Q., Ran H., Li C. D. A-Type Granite: What is the Essence?. Atca Petrologica Mineralogica, 2012, 31(4): 621-626.

[76] Zhang Y. Q., Dong S. W., Zhao Y., . Jurassic Tectonics of North China: A Synthetic View. Acta Petrologica Sinica, 2008, 82(2): 310-326.

[77] Zhang Z. L., Zeng Q. D., Qu W. J., . The Molybdenite Re-Os Dating from the Nianzigou Mo Deposit, Inner Mongolia and its Geologial Significance. Acta Petrologica Sinica, 2009, 25(1): 212-218.

[78] Zhao Y. M., Zhang D. Q. Inner Mongolia Southeast of Copper Polymetallic Mineralization Geological Conditions and Prospecting Mode, 1994, Beijing: Earthquake Press, 1-722.

[79] Zhao Y., Yang Z. N., Ma X. H. Geotectonic Transition from Paleoasian System and Paleotethyan System to Paleopacific Active Continental Margin in Eastern Asia. Scientia Geologica Sinica, 1994, 29(2): 105-119.

[80] Zhou Z. H., Lü L. S., Yang Y. J., . Petrogenesis of the Early Cretaceous A-Type Granite in the Huanggang Sn-Fe Deposit, Inner Mongolia: Constraints from Zircon U-Pb Dating and Geochemistry. Acta Petrologica Sinica, 2010, 26(3): 667-669.

[81] Zhu Y., An F., Feng W., . Geological Evolution and Huge Ore-Forming Belts in the Core Part of the Central Asian Metallogenic Region. Journal of Earth Science, 2016, 27(3): 491-506.