GUO Kun, ZHAI Shikui, YU Zenghui, ZENG Zhigang, WANG Xiaoyuan, YIN Xuebo. Geochemical characteristics of major and trace elements in the Okinawa Trough basaltic glass[J]. Acta Oceanologica Sinica, 2018, 37(2): 14-24. doi: 10.1007/s13131-017-1075-2
Citation: GUO Kun, ZHAI Shikui, YU Zenghui, ZENG Zhigang, WANG Xiaoyuan, YIN Xuebo. Geochemical characteristics of major and trace elements in the Okinawa Trough basaltic glass[J]. Acta Oceanologica Sinica, 2018, 37(2): 14-24. doi: 10.1007/s13131-017-1075-2

Geochemical characteristics of major and trace elements in the Okinawa Trough basaltic glass

doi: 10.1007/s13131-017-1075-2
  • Received Date: 2017-01-05
  • Rev Recd Date: 2011-02-24
  • The Okinawa Trough (OT) is a back-arc basin at an initial spreading stage that is under the influence of subduction of the Philippine Sea Plate. In this study, we analyzed the geochemical compositions of basaltic glass in the OT and discussed the effects of different magmatic sources, evolution, and subducted components in basalts. Our results showed that the middle and southern regions of the OT exhibit characteristics consistent with an iron-rich tholeiite series. Trace element proportions conform to the typical spider diagram pattern characteristic of back-arc basin basalts, rich in large ion lithophile elements (LILEs) including Rb, Ba, Pb, U, and Th, while depleted in high field-strength elements (HFSEs) including Nb, Ta, Zr, Hf, and Ti. The distribution of rare earth elements (REEs) is also consistent with enrichment by right-leaning light rare earth elements (LREEs). The addition of enriched mantle type I (EMI) materials as well as mantle heterogeneity may have led to variable degrees of enrichment in different regions. The magma source of the middle trough has undergone crystallization towards pyroxene, while development of plagioclase was restricted partly, and the crystallization of spinel and olivine ceased altogether. At the same time, crystallization of the southern OT magma source was dominated by olivine and including the formation of plagioclase, pyroxene, and magnetite (or titanomagnetite). Finally, the results of this study showed that 90% Th, 95% Ba in the southern basalt, 50%-70% Th and 70%-90% Ba in the middle basalt originated from subducted component. Different subducted component influence may be due to different subduction zone structural feature.
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  • Chen Xiaoming, Tan Qingquan, Zhao Guangtao. 2002. Plagioclases from the basalt of Okinawa Trough and its petrogenesis significance. Acta Petrologica Sinica (in Chinese), 18(4): 482-488
    Eissen J P, Lefèvre C, Maillet P, et al. 1991. Petrology and geochemistry of the central North Fiji Basin spreading centre (Southwest Pacific) between 16°S and 22°S. Marine Geology, 98(2-4): 201-239
    Fretzdorff S, Livermore R A, Devey C W, et al. 2002. Petrogenesis of the back-arc East Scotia Ridge, South Atlantic Ocean. Journal of Petrology, 43(8): 1435-1467
    Fretzdorff S, Schwarz-Schampera U, Gibson H L, et al. 2006. Hydrothermal activity and magma genesis along a propagating back-arc basin: Valu Fa Ridge (southern Lau Basin). Journal of Geophysical Research, 111(B8): B08205
    Gaetani G A, Grove T L, Bryan W B. 1993. The influence of water on the petrogenesis of subductionrelated igneous rocks. Nature, 365(6444): 332-334
    Gaetani G A, Grove T L. 1998. The influence of water on melting of mantle peridotite. Contributions to Mineralogy and Petrology, 131(4): 323-346
    Guo Kun, Zhai Shikui, Yu Zenghui, et al. 2016. Sr-Nd-Pb isotopic geochemistry of phenocrysts in pumice from the central Okinawa Trough. Geological Journal, 51(S1): 368-375
    Hawkins J W, Lonsdale P F, Macdougall J D, et al. 1990. Petrology of the axial ridge of the Mariana Trough backarc spreading center. Earth and Planetary Science Letters, 100(1-3): 226-250
    Hawkins J W, Melchior J T. 1985. Petrology of Mariana trough and Lau basin basalts. Journal of Geophysical Research, 90(B13): 11431-11468
    Henderson P. 1984. Rare Earth Element Geochemistry. Amsterdam: Elsevier Press
    Hoang N, Uto K. 2006. Upper mantle isotopic components beneath the Ryukyu arc system: evidence for ‘back-arc’ entrapment of Pacific MORB mantle. Earth and Planetary Science Letters, 249(3-4): 229-240
    Honma H, Kusakabe M, Kagami H, et al. 1991. Major and trace element chemistry and D/H, 18O/16O, 87Sr/86Sr and 143Nd/144Nd ratios of rocks from the spreading center of the Okinawa Trough, a marginal back-arc basin. Geochemical Journal, 25(2): 121-136
    Huang Peng, Li Anchun, Jiang Hengyi. 2006. Geochemical features and their geological implications of volcanic rocks from the northern and middle Okinawa Trough. Acta Petrologica Sinica (in Chinese), 22(6): 1703-1712
    Ishizuka H, Kawanobe Y, Sakai H. 1990. Petrology and geochemistry of volcanic rocks dredged from the Okinawa Trough, an active back-arc basin. Geochemical Journal, 24(2): 75-92
    Ishizuka O, Yuasa M, Taylor R N, et al. 2009. Two contrasting magmatic types coexist after the cessation of back-arc spreading. Chemical Geology, 266(3-4): 274-296
    Karig D E. 1971. Origin and development of marginal basins in the western Pacific. Journal of Geophysical Research, 76(11): 2542-2561
    Kimura M. 1985. Back-arc rifting in the Okinawa Trough. Marine and Petroleum Geology, 2(3): 222-240
    Kimura M, Kaneoka I, Kato Y, et al. 1986. Report on DELP 1984 cruises in the middle Okinawa trough: Part V. Topography and geology of the central Grabens and their vicinity. Bulletin of the Earthquake Research Institute, University of Tokyo, 61(2): 269-3l
    Leat P T, Livermore R A, Millar I L, et al. 2000. Magma supply in back-arc spreading Centre segment E2, East Scotia Ridge. Journal of Petrology, 41(6): 845-866
    Li Weiran, Yang Zuosheng, Wang Yongji, et al. 1997a. The petrochemical features of the volcanic rocks in Okinawa Trough and their geological significance. Acta Petrologica Sinica (in Chinese), 13(4): 538-550
    Li Weiran, Yang Zuosheng, Zhang Baomin, et al. 1997b. Study on the olivine tholeiite of the southern Okinawa Trough. Oceanologia et Limnologia Sinica (in Chinese), 28(6): 665-672
    Liu Yongsheng, Gao Shan, Hu Zhaochu, et al. 2010a. Continental and oceanic crust recycling-induced melt-peridotite interactions in the Trans-North China Orogen: U-Pb dating, Hf isotopes and trace elements in zircons from mantle xenoliths. Journal of Petrology, 51(1-2): 537-571
    Liu Yongsheng, Hu Zhaochu, Zong Keqing, et al. 2010b. Reappraisement and refinement of zircon U-Pb isotope and trace element analyses by LA-ICP-MS. Chinese Science Bulletin, 55(15): 1535-1546
    Liu Bo, Li Sanzhong, Suo Yanhui, et al. 2016. The geological nature and geodynamics of the Okinawa Trough, Western Pacific. Geological Journal, 51(S1): 416-428
    Ma Weilin, Wang Xianlan, Jin Xianglong, et al. 2004. Areal difference of middle and southern basalts from the Okinawa Trough and its genesis study. Acta Geologica Sinica (in Chinese), 78(6): 758-769
    Macdonald R, Hawkesworth C J, Heath E. 2000. The Lesser Antilles volcanic chain: a study in arc magmatism. Earth-Science Reviews, 49(1-4): 1-76
    Meng Xianwei, Chen Zhihua, Du Dewen, et al. 2000. Sr, Nd isotope geochemistry of volcanic rock series and its geological significance in the middle Okinawa Trough. Science in China Series D: Earth Sciences, 43(5): 458-463
    Miyashiro A. 1974. Volcanic rock series in island arcs and active continental margins. American Journal of Science, 274(4): 321-355
    Niu Yaoling. 2013. Global Tectonics and Geodynamics—A Petrological and Geochemical Approach (in Chinese). Beijing: Science Press
    Niu Yaoling, Regelous M, Wendt I J, et al. 2002. Geochemistry of near-EPR seamounts: importance of source vs. process and the origin of enriched mantle component. Earth and Planetary Science Letters, 199(3-4): 327-345
    Pearce J A, Ernewein M, Bloomer S H, et al. 1994. Geochemistry of Lau Basin volcanic rocks: influence of ridge segmentation and arc proximity. Geological Society, London, Special Publications, 81(1): 53-75
    Pearce J A, Stern R J, Bloomer S H, et al. 2005. Geochemical mapping of the Mariana arc-basin system: Implications for the nature and distribution of subduction components. Geochemistry, Geophysics, Geosystems, 6(7): Q07006
    Pearce J A, Stern R J. 2006. Origin of back-arc basin magmas: trace element and isotope perspectives. In: Christie D M, Fisher C R, Lee S M, et al, eds. Back-Arc Spreading Systems: Geological, Biological, Chemical, and Physical Interactions. Washington, D C: American Geophysical Union, 63-86
    Peate D W, Kokfelt T F, Hawkesworth C J, et al. 2001. U-series isotope data on Lau Basin glasses: the role of subduction-related fluids during melt generation in back-arc basins. Journal of Petrology, 42(8): 1449-1470
    Rickwood P C. 1989. Boundary lines within petrologic diagrams which use oxides of major and minor elements. Lithos, 22(4): 247-263
    Shinjo R, Chung S L, Kato Y, et al. 1999. Geochemical and Sr-Nd isotopic characteristics of volcanic rocks from the Okinawa Trough and Ryukyu arc: implications for the evolution of a young, intracontinental back arc basin. Journal of Geophysical Research, 104(B5): 10591-10608
    Shinjo R, Kato Y. 2000. Geochemical constraints on the origin of bimodal magmatism at the Okinawa Trough, an incipient back-arc basin. Lithos, 54(3-4): 117-137
    Sibuet J C, Letouzey J, Barbier F, et al. 1987. Back arc extension in the Okinawa Trough. Journal of Geophysical Research, 92(B13): 14041-14063
    Sinton J M, Ford L L, Chappell B, et al. 2003. Magma genesis and mantle heterogeneity in the Manus back-arc basin, Papua New Guinea. Journal of Petrology, 44(1): 159-195
    Sisson T W, Grove T L. 1993. Experimental investigations of the role of H2O in calc-alkaline differentiation and subduction zone magmatism. Contributions to Mineralogy and Petrology, 113(2): 143-166
    Sun S S, McDonough W F. 1989. Chemical and isotopic systematics of oceanic basalts: implications for mantle composition and processes. Geological Society, London, Special Publications, 42(1): 313-345
    Taylor B, Martinez F. 2003. Back-arc basin basalt systematics. Earth and Planetary Science Letters, 210(3-4): 481-497
    Tian Liyan, Castillo P R, Hawkins J W, et al. 2008. Major and trace element and Sr-Nd isotope signatures of lavas from the Central Lau Basin: implications for the nature and influence of subduction components in the back-arc mantle. Journal of Volcanology and Geothermal Research, 178(4): 657-670
    Yan Quanshu, Castillo P R, Shi Xuefa. 2012. Geochemistry of basaltic lavas from the southern Lau Basin: input of compositionally variable subduction components. International Geology Review, 54(12): 1456-1474
    Yan Quanshu, Shi Xuefa. 2014. Petrologic perspectives on tectonic evolution of a nascent basin (Okinawa Trough) behind Ryukyu Arc: a review. Acta Oceanologica Sinica, 33(4): 1-12
    Yu Zenghui, Zhai Shikui, Guo Kun, et al. 2016. Helium isotopes in volcanic rocks from the Okinawa Trough—impact of volatile recycling and crustal contamination. Geological Journal, 51(S1): 376-386
    Zhai Shikui, Gan Xiaoqun. 1995. Study of basalt from the hydrothermal field of the Okinawa Trough. Oceanologia et Limnologia Sinica (in Chinese), 26(2): 115-123
    Zheng Yongfei, Chen Renxu, Xu Zheng, et al. 2016. The transport of water in subduction zones. Science China Earth Sciences, 59(4): 651-682
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