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

GUO Kun; ZHAI Shikui; YU Zenghui; ZENG Zhigang; WANG Xiaoyuan; YIN Xuebo

doi:10.1007/s13131-017-1075-2

冲绳海槽玄武岩玻璃主量、微量元素地球化学特征

doi: 10.1007/s13131-017-1075-2

1.
中国科学院海洋研究所海洋地质与环境重点实验室, 山东青岛 266071;青岛海洋科学与技术国家实验室海洋地质过程与环境功能实验室, 山东青岛 266000;中国海洋大学海底科学与探测技术教育部重点实验室, 山东青岛 266100
2.
中国海洋大学海底科学与探测技术教育部重点实验室, 山东青岛 266100
3.
中国科学院海洋研究所海洋地质与环境重点实验室, 山东青岛 266071

基金项目: The National Basic Research Program of China under contract No. 2013CB429702; the open fund project supported by the Laboratory for Marine Geology, Qingdao National Laboratory for Marine Science and Technology under contract No. MGQNLM-KF201707; the National Natural Science Foundation of China under contract Nos 41476044, 41325021 and 41306053; the Special Fund for the Taishan Scholar Program of Shandong Province under contract No. ts201511061; the AoShan Talents Program supported by Qingdao National Laboratory for Marine Science and Technology under contract No. 2015ASTP-0S17; the Innovative Talent Promotion Program under contract No. 2012RA2191; the Science and Technology Development Program of Shandong Province under contract No. 2013GRC31502.

计量
- 文章访问数: 1259
- HTML全文浏览量: 87
- PDF下载量: 804
- 被引次数: 0
出版历程
- 收稿日期: 2017-01-05
- 修回日期: 2011-02-24

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

1.
Key Laboratory of Marine Geology and Environment, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China;Laboratory for Marine Geology, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266071, China;Key Laboratory of Submarine Geosciences and Prospection of Ministry of Education, Ocean University of China, Qingdao 266100, China
2.
Key Laboratory of Submarine Geosciences and Prospection of Ministry of Education, Ocean University of China, Qingdao 266100, China
3.
Key Laboratory of Marine Geology and Environment, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China

摘要

摘要: 冲绳海槽是一个处于弧后盆地扩张早期阶段、正在受菲律宾海板块俯冲作用影响的弧后盆地。本文分析了冲绳海槽玄武岩玻璃的地球化学组成，研究了玄武岩岩浆源区的性质、岩浆演化及俯冲组分的影响等。结果表明：（1）冲绳海槽中部和南部玄武岩都表现出Fe富集的拉斑玄武岩系列的特征。微量元素表现出大离子亲石元素Rb、Ba、Pb以及U、Th富集，高场强元素Nb、Ta、Zr、Hf和Ti亏损的典型弧后盆地玄武岩微量元素蛛网图模式。稀土元素表现出右倾LREE富集型的特点。（2）海槽岩浆源区为N-MORB型地幔，中部岩浆源区比南部更富集，EMI型地幔物质的加入、地幔不均一性可能造成海槽不同区域不同富集程度的原因。（3）海槽中部岩浆源区经历了以辉石为主的结晶演化，斜长石的结晶受到了抑制，尖晶石和橄榄石已经停止了结晶。而南部岩浆源区经历了以橄榄石为主的结晶，还包括斜长石、辉石、磁铁矿（钛磁铁矿）的结晶。（4）南部玄武岩中90%的Th和95%的Ba来自于俯冲组分，中部玄武岩来自俯冲组分的Th和Ba分别为50%~70%和70%~90%。不同俯冲组分的影响，可能是因为海槽不同区段不同的俯冲带结构。
- 冲绳海槽 /
- 玄武岩玻璃 /
- 地球化学 /
- 岩浆演化 /
- 俯冲组分
Abstract: 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.
- Okinawa Trough /
- basaltic glass /
- geochemistry /
- magmatic evolution /
- subducted component

HTML全文

参考文献(48)

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

施引文献

资源附件(0)

访问统计

点击查看大图

计量

文章访问数: 1259
HTML全文浏览量: 87
PDF下载量: 804
被引次数: 0

冲绳海槽玄武岩玻璃主量、微量元素地球化学特征

doi: 10.1007/s13131-017-1075-2

计量

出版历程

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

计量

出版历程

目录