Elemental Compositions of Clinopyroxenes from Southern Okinawa Trough Basalt: Implications for Magmatism and Structural Environment in an Initial Back-Arc Basin
Abstract The major and trace elemental compositions of clinopyroxene from basalt were used to characterize the nature of the primitive magma and structural environment beneath the southern Okinawa Trough (SOT), which is an initial back-arc basin at a continental margin. The clinopyroxenes in the bas...
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| Autor*in: |
Guo, Kun [verfasserIn] Zhai, Shikui [verfasserIn] Fan, Di [verfasserIn] Zhang, Xia [verfasserIn] Zhang, Yu [verfasserIn] Zhu, Zhimin [verfasserIn] |
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| Format: |
E-Artikel |
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| Sprache: |
Englisch |
| Erschienen: |
2024 |
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| Anmerkung: |
© Ocean University of China, Science Press and Springer-Verlag GmbH Germany 2024 |
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| Übergeordnetes Werk: |
Enthalten in: Journal of Ocean University of China - Science Press, 2002, 23(2024), 3 vom: 20. Mai, Seite 643-653 |
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| Übergeordnetes Werk: |
volume:23 ; year:2024 ; number:3 ; day:20 ; month:05 ; pages:643-653 |
| Links: |
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| DOI / URN: |
10.1007/s11802-024-5531-2 |
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| Katalog-ID: |
SPR055918883 |
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| 245 | 1 | 0 | |a Elemental Compositions of Clinopyroxenes from Southern Okinawa Trough Basalt: Implications for Magmatism and Structural Environment in an Initial Back-Arc Basin |
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| 520 | |a Abstract The major and trace elemental compositions of clinopyroxene from basalt were used to characterize the nature of the primitive magma and structural environment beneath the southern Okinawa Trough (SOT), which is an initial back-arc basin at a continental margin. The clinopyroxenes in the basalt were augite with variable $ Mg^{#} $ contents (73.37–78.22). The regular variations in major oxide contents (i.e., CaO, FeO, $ TiO_{2} $, and Cr) with decreasing $ Mg^{#} $ implied that the clinopyroxenes evolved from being enriched in Mg, Ca, and Cr to being enriched in Fe and Ti. The clinopyroxenes had relatively low rare earth element concentrations (7.51 × $ 10^{−6} $ to 12.68 × $ 10^{−6} $) and negative Eu anomalies (δEu = 0.67–0.95). The Kdcpx values of clinopyroxenes (0.2–0.26), which were used to examine whether the clinopyroxene was equilibrated with its host basalt, demonstrate that these clinopyroxene phenocrysts were not captured crystals but were instead produced by crystallization differentiation of the magma. The calculated clinopyroxene crystallization temperatures showed a narrow range of 990–1061°C, and their crystallization pressures ranged from 2.0 to 3.2 kbar. The geochemistry features of these clinopyroxenes indicated that the parent magma belonged to the subalkaline tholeiitic magma series and suggested that the magma experienced crystallization differentiation of olivine, plagioclase, and clinopyroxene, where the crystallization of plagioclase occurred earlier than that of clinopyroxene. Combined with geophysical data, this research on primitive magma and its crystallization differentiation from clinopyroxene indicates that the SOT is in the stage of ‘seafloor spreading’ and that basaltic rocks produced from tholeiitic magma represent the generation of oceanic crust. | ||
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| 700 | 1 | |a Zhang, Yu |e verfasserin |4 aut | |
| 700 | 1 | |a Zhu, Zhimin |e verfasserin |4 aut | |
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10.1007/s11802-024-5531-2 doi (DE-627)SPR055918883 (SPR)s11802-024-5531-2-e DE-627 ger DE-627 rakwb eng 550 VZ 14 ssgn ASIEN DE-1a fid 38.90 bkl Guo, Kun verfasserin aut Elemental Compositions of Clinopyroxenes from Southern Okinawa Trough Basalt: Implications for Magmatism and Structural Environment in an Initial Back-Arc Basin 2024 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © Ocean University of China, Science Press and Springer-Verlag GmbH Germany 2024 Abstract The major and trace elemental compositions of clinopyroxene from basalt were used to characterize the nature of the primitive magma and structural environment beneath the southern Okinawa Trough (SOT), which is an initial back-arc basin at a continental margin. The clinopyroxenes in the basalt were augite with variable $ Mg^{#} $ contents (73.37–78.22). The regular variations in major oxide contents (i.e., CaO, FeO, $ TiO_{2} $, and Cr) with decreasing $ Mg^{#} $ implied that the clinopyroxenes evolved from being enriched in Mg, Ca, and Cr to being enriched in Fe and Ti. The clinopyroxenes had relatively low rare earth element concentrations (7.51 × $ 10^{−6} $ to 12.68 × $ 10^{−6} $) and negative Eu anomalies (δEu = 0.67–0.95). The Kdcpx values of clinopyroxenes (0.2–0.26), which were used to examine whether the clinopyroxene was equilibrated with its host basalt, demonstrate that these clinopyroxene phenocrysts were not captured crystals but were instead produced by crystallization differentiation of the magma. The calculated clinopyroxene crystallization temperatures showed a narrow range of 990–1061°C, and their crystallization pressures ranged from 2.0 to 3.2 kbar. The geochemistry features of these clinopyroxenes indicated that the parent magma belonged to the subalkaline tholeiitic magma series and suggested that the magma experienced crystallization differentiation of olivine, plagioclase, and clinopyroxene, where the crystallization of plagioclase occurred earlier than that of clinopyroxene. Combined with geophysical data, this research on primitive magma and its crystallization differentiation from clinopyroxene indicates that the SOT is in the stage of ‘seafloor spreading’ and that basaltic rocks produced from tholeiitic magma represent the generation of oceanic crust. Zhai, Shikui verfasserin aut Fan, Di verfasserin aut Zhang, Xia verfasserin aut Zhang, Yu verfasserin aut Zhu, Zhimin verfasserin aut Enthalten in Journal of Ocean University of China Science Press, 2002 23(2024), 3 vom: 20. Mai, Seite 643-653 (DE-627)525878092 (DE-600)2274194-X 1993-5021 nnns volume:23 year:2024 number:3 day:20 month:05 pages:643-653 https://dx.doi.org/10.1007/s11802-024-5531-2 X:SPRINGER Resolving-System lizenzpflichtig Volltext SYSFLAG_0 GBV_SPRINGER FID-ASIEN SSG-OPC-GGO GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_121 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_206 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_374 GBV_ILN_381 GBV_ILN_602 GBV_ILN_636 GBV_ILN_647 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2018 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2036 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2119 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_2700 GBV_ILN_2817 GBV_ILN_4012 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4277 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4328 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4346 GBV_ILN_4367 GBV_ILN_4392 GBV_ILN_4393 GBV_ILN_4700 GBV_ILN_4753 38.90 VZ AR 23 2024 3 20 05 643-653 |
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10.1007/s11802-024-5531-2 doi (DE-627)SPR055918883 (SPR)s11802-024-5531-2-e DE-627 ger DE-627 rakwb eng 550 VZ 14 ssgn ASIEN DE-1a fid 38.90 bkl Guo, Kun verfasserin aut Elemental Compositions of Clinopyroxenes from Southern Okinawa Trough Basalt: Implications for Magmatism and Structural Environment in an Initial Back-Arc Basin 2024 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © Ocean University of China, Science Press and Springer-Verlag GmbH Germany 2024 Abstract The major and trace elemental compositions of clinopyroxene from basalt were used to characterize the nature of the primitive magma and structural environment beneath the southern Okinawa Trough (SOT), which is an initial back-arc basin at a continental margin. The clinopyroxenes in the basalt were augite with variable $ Mg^{#} $ contents (73.37–78.22). The regular variations in major oxide contents (i.e., CaO, FeO, $ TiO_{2} $, and Cr) with decreasing $ Mg^{#} $ implied that the clinopyroxenes evolved from being enriched in Mg, Ca, and Cr to being enriched in Fe and Ti. The clinopyroxenes had relatively low rare earth element concentrations (7.51 × $ 10^{−6} $ to 12.68 × $ 10^{−6} $) and negative Eu anomalies (δEu = 0.67–0.95). The Kdcpx values of clinopyroxenes (0.2–0.26), which were used to examine whether the clinopyroxene was equilibrated with its host basalt, demonstrate that these clinopyroxene phenocrysts were not captured crystals but were instead produced by crystallization differentiation of the magma. The calculated clinopyroxene crystallization temperatures showed a narrow range of 990–1061°C, and their crystallization pressures ranged from 2.0 to 3.2 kbar. The geochemistry features of these clinopyroxenes indicated that the parent magma belonged to the subalkaline tholeiitic magma series and suggested that the magma experienced crystallization differentiation of olivine, plagioclase, and clinopyroxene, where the crystallization of plagioclase occurred earlier than that of clinopyroxene. Combined with geophysical data, this research on primitive magma and its crystallization differentiation from clinopyroxene indicates that the SOT is in the stage of ‘seafloor spreading’ and that basaltic rocks produced from tholeiitic magma represent the generation of oceanic crust. Zhai, Shikui verfasserin aut Fan, Di verfasserin aut Zhang, Xia verfasserin aut Zhang, Yu verfasserin aut Zhu, Zhimin verfasserin aut Enthalten in Journal of Ocean University of China Science Press, 2002 23(2024), 3 vom: 20. Mai, Seite 643-653 (DE-627)525878092 (DE-600)2274194-X 1993-5021 nnns volume:23 year:2024 number:3 day:20 month:05 pages:643-653 https://dx.doi.org/10.1007/s11802-024-5531-2 X:SPRINGER Resolving-System lizenzpflichtig Volltext SYSFLAG_0 GBV_SPRINGER FID-ASIEN SSG-OPC-GGO GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_121 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_206 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_374 GBV_ILN_381 GBV_ILN_602 GBV_ILN_636 GBV_ILN_647 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2018 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2036 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2119 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_2700 GBV_ILN_2817 GBV_ILN_4012 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4277 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4328 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4346 GBV_ILN_4367 GBV_ILN_4392 GBV_ILN_4393 GBV_ILN_4700 GBV_ILN_4753 38.90 VZ AR 23 2024 3 20 05 643-653 |
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10.1007/s11802-024-5531-2 doi (DE-627)SPR055918883 (SPR)s11802-024-5531-2-e DE-627 ger DE-627 rakwb eng 550 VZ 14 ssgn ASIEN DE-1a fid 38.90 bkl Guo, Kun verfasserin aut Elemental Compositions of Clinopyroxenes from Southern Okinawa Trough Basalt: Implications for Magmatism and Structural Environment in an Initial Back-Arc Basin 2024 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © Ocean University of China, Science Press and Springer-Verlag GmbH Germany 2024 Abstract The major and trace elemental compositions of clinopyroxene from basalt were used to characterize the nature of the primitive magma and structural environment beneath the southern Okinawa Trough (SOT), which is an initial back-arc basin at a continental margin. The clinopyroxenes in the basalt were augite with variable $ Mg^{#} $ contents (73.37–78.22). The regular variations in major oxide contents (i.e., CaO, FeO, $ TiO_{2} $, and Cr) with decreasing $ Mg^{#} $ implied that the clinopyroxenes evolved from being enriched in Mg, Ca, and Cr to being enriched in Fe and Ti. The clinopyroxenes had relatively low rare earth element concentrations (7.51 × $ 10^{−6} $ to 12.68 × $ 10^{−6} $) and negative Eu anomalies (δEu = 0.67–0.95). The Kdcpx values of clinopyroxenes (0.2–0.26), which were used to examine whether the clinopyroxene was equilibrated with its host basalt, demonstrate that these clinopyroxene phenocrysts were not captured crystals but were instead produced by crystallization differentiation of the magma. The calculated clinopyroxene crystallization temperatures showed a narrow range of 990–1061°C, and their crystallization pressures ranged from 2.0 to 3.2 kbar. The geochemistry features of these clinopyroxenes indicated that the parent magma belonged to the subalkaline tholeiitic magma series and suggested that the magma experienced crystallization differentiation of olivine, plagioclase, and clinopyroxene, where the crystallization of plagioclase occurred earlier than that of clinopyroxene. Combined with geophysical data, this research on primitive magma and its crystallization differentiation from clinopyroxene indicates that the SOT is in the stage of ‘seafloor spreading’ and that basaltic rocks produced from tholeiitic magma represent the generation of oceanic crust. Zhai, Shikui verfasserin aut Fan, Di verfasserin aut Zhang, Xia verfasserin aut Zhang, Yu verfasserin aut Zhu, Zhimin verfasserin aut Enthalten in Journal of Ocean University of China Science Press, 2002 23(2024), 3 vom: 20. Mai, Seite 643-653 (DE-627)525878092 (DE-600)2274194-X 1993-5021 nnns volume:23 year:2024 number:3 day:20 month:05 pages:643-653 https://dx.doi.org/10.1007/s11802-024-5531-2 X:SPRINGER Resolving-System lizenzpflichtig Volltext SYSFLAG_0 GBV_SPRINGER FID-ASIEN SSG-OPC-GGO GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_121 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_206 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_374 GBV_ILN_381 GBV_ILN_602 GBV_ILN_636 GBV_ILN_647 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2018 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2036 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2119 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_2700 GBV_ILN_2817 GBV_ILN_4012 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4277 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4328 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4346 GBV_ILN_4367 GBV_ILN_4392 GBV_ILN_4393 GBV_ILN_4700 GBV_ILN_4753 38.90 VZ AR 23 2024 3 20 05 643-653 |
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10.1007/s11802-024-5531-2 doi (DE-627)SPR055918883 (SPR)s11802-024-5531-2-e DE-627 ger DE-627 rakwb eng 550 VZ 14 ssgn ASIEN DE-1a fid 38.90 bkl Guo, Kun verfasserin aut Elemental Compositions of Clinopyroxenes from Southern Okinawa Trough Basalt: Implications for Magmatism and Structural Environment in an Initial Back-Arc Basin 2024 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © Ocean University of China, Science Press and Springer-Verlag GmbH Germany 2024 Abstract The major and trace elemental compositions of clinopyroxene from basalt were used to characterize the nature of the primitive magma and structural environment beneath the southern Okinawa Trough (SOT), which is an initial back-arc basin at a continental margin. The clinopyroxenes in the basalt were augite with variable $ Mg^{#} $ contents (73.37–78.22). The regular variations in major oxide contents (i.e., CaO, FeO, $ TiO_{2} $, and Cr) with decreasing $ Mg^{#} $ implied that the clinopyroxenes evolved from being enriched in Mg, Ca, and Cr to being enriched in Fe and Ti. The clinopyroxenes had relatively low rare earth element concentrations (7.51 × $ 10^{−6} $ to 12.68 × $ 10^{−6} $) and negative Eu anomalies (δEu = 0.67–0.95). The Kdcpx values of clinopyroxenes (0.2–0.26), which were used to examine whether the clinopyroxene was equilibrated with its host basalt, demonstrate that these clinopyroxene phenocrysts were not captured crystals but were instead produced by crystallization differentiation of the magma. The calculated clinopyroxene crystallization temperatures showed a narrow range of 990–1061°C, and their crystallization pressures ranged from 2.0 to 3.2 kbar. The geochemistry features of these clinopyroxenes indicated that the parent magma belonged to the subalkaline tholeiitic magma series and suggested that the magma experienced crystallization differentiation of olivine, plagioclase, and clinopyroxene, where the crystallization of plagioclase occurred earlier than that of clinopyroxene. Combined with geophysical data, this research on primitive magma and its crystallization differentiation from clinopyroxene indicates that the SOT is in the stage of ‘seafloor spreading’ and that basaltic rocks produced from tholeiitic magma represent the generation of oceanic crust. Zhai, Shikui verfasserin aut Fan, Di verfasserin aut Zhang, Xia verfasserin aut Zhang, Yu verfasserin aut Zhu, Zhimin verfasserin aut Enthalten in Journal of Ocean University of China Science Press, 2002 23(2024), 3 vom: 20. Mai, Seite 643-653 (DE-627)525878092 (DE-600)2274194-X 1993-5021 nnns volume:23 year:2024 number:3 day:20 month:05 pages:643-653 https://dx.doi.org/10.1007/s11802-024-5531-2 X:SPRINGER Resolving-System lizenzpflichtig Volltext SYSFLAG_0 GBV_SPRINGER FID-ASIEN SSG-OPC-GGO GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_121 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_206 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_374 GBV_ILN_381 GBV_ILN_602 GBV_ILN_636 GBV_ILN_647 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2018 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2036 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2119 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_2700 GBV_ILN_2817 GBV_ILN_4012 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4277 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4328 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4346 GBV_ILN_4367 GBV_ILN_4392 GBV_ILN_4393 GBV_ILN_4700 GBV_ILN_4753 38.90 VZ AR 23 2024 3 20 05 643-653 |
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10.1007/s11802-024-5531-2 doi (DE-627)SPR055918883 (SPR)s11802-024-5531-2-e DE-627 ger DE-627 rakwb eng 550 VZ 14 ssgn ASIEN DE-1a fid 38.90 bkl Guo, Kun verfasserin aut Elemental Compositions of Clinopyroxenes from Southern Okinawa Trough Basalt: Implications for Magmatism and Structural Environment in an Initial Back-Arc Basin 2024 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © Ocean University of China, Science Press and Springer-Verlag GmbH Germany 2024 Abstract The major and trace elemental compositions of clinopyroxene from basalt were used to characterize the nature of the primitive magma and structural environment beneath the southern Okinawa Trough (SOT), which is an initial back-arc basin at a continental margin. The clinopyroxenes in the basalt were augite with variable $ Mg^{#} $ contents (73.37–78.22). The regular variations in major oxide contents (i.e., CaO, FeO, $ TiO_{2} $, and Cr) with decreasing $ Mg^{#} $ implied that the clinopyroxenes evolved from being enriched in Mg, Ca, and Cr to being enriched in Fe and Ti. The clinopyroxenes had relatively low rare earth element concentrations (7.51 × $ 10^{−6} $ to 12.68 × $ 10^{−6} $) and negative Eu anomalies (δEu = 0.67–0.95). The Kdcpx values of clinopyroxenes (0.2–0.26), which were used to examine whether the clinopyroxene was equilibrated with its host basalt, demonstrate that these clinopyroxene phenocrysts were not captured crystals but were instead produced by crystallization differentiation of the magma. The calculated clinopyroxene crystallization temperatures showed a narrow range of 990–1061°C, and their crystallization pressures ranged from 2.0 to 3.2 kbar. The geochemistry features of these clinopyroxenes indicated that the parent magma belonged to the subalkaline tholeiitic magma series and suggested that the magma experienced crystallization differentiation of olivine, plagioclase, and clinopyroxene, where the crystallization of plagioclase occurred earlier than that of clinopyroxene. Combined with geophysical data, this research on primitive magma and its crystallization differentiation from clinopyroxene indicates that the SOT is in the stage of ‘seafloor spreading’ and that basaltic rocks produced from tholeiitic magma represent the generation of oceanic crust. Zhai, Shikui verfasserin aut Fan, Di verfasserin aut Zhang, Xia verfasserin aut Zhang, Yu verfasserin aut Zhu, Zhimin verfasserin aut Enthalten in Journal of Ocean University of China Science Press, 2002 23(2024), 3 vom: 20. Mai, Seite 643-653 (DE-627)525878092 (DE-600)2274194-X 1993-5021 nnns volume:23 year:2024 number:3 day:20 month:05 pages:643-653 https://dx.doi.org/10.1007/s11802-024-5531-2 X:SPRINGER Resolving-System lizenzpflichtig Volltext SYSFLAG_0 GBV_SPRINGER FID-ASIEN SSG-OPC-GGO GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_121 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_206 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_374 GBV_ILN_381 GBV_ILN_602 GBV_ILN_636 GBV_ILN_647 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2018 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2036 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2119 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_2700 GBV_ILN_2817 GBV_ILN_4012 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4277 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4328 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4346 GBV_ILN_4367 GBV_ILN_4392 GBV_ILN_4393 GBV_ILN_4700 GBV_ILN_4753 38.90 VZ AR 23 2024 3 20 05 643-653 |
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Guo, Kun |
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Guo, Kun ddc 550 ssgn 14 fid ASIEN bkl 38.90 Elemental Compositions of Clinopyroxenes from Southern Okinawa Trough Basalt: Implications for Magmatism and Structural Environment in an Initial Back-Arc Basin |
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550 VZ 14 ssgn ASIEN DE-1a fid 38.90 bkl Elemental Compositions of Clinopyroxenes from Southern Okinawa Trough Basalt: Implications for Magmatism and Structural Environment in an Initial Back-Arc Basin |
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Elemental Compositions of Clinopyroxenes from Southern Okinawa Trough Basalt: Implications for Magmatism and Structural Environment in an Initial Back-Arc Basin |
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Elemental Compositions of Clinopyroxenes from Southern Okinawa Trough Basalt: Implications for Magmatism and Structural Environment in an Initial Back-Arc Basin |
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Guo, Kun |
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Journal of Ocean University of China |
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Guo, Kun Zhai, Shikui Fan, Di Zhang, Xia Zhang, Yu Zhu, Zhimin |
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elemental compositions of clinopyroxenes from southern okinawa trough basalt: implications for magmatism and structural environment in an initial back-arc basin |
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Elemental Compositions of Clinopyroxenes from Southern Okinawa Trough Basalt: Implications for Magmatism and Structural Environment in an Initial Back-Arc Basin |
| abstract |
Abstract The major and trace elemental compositions of clinopyroxene from basalt were used to characterize the nature of the primitive magma and structural environment beneath the southern Okinawa Trough (SOT), which is an initial back-arc basin at a continental margin. The clinopyroxenes in the basalt were augite with variable $ Mg^{#} $ contents (73.37–78.22). The regular variations in major oxide contents (i.e., CaO, FeO, $ TiO_{2} $, and Cr) with decreasing $ Mg^{#} $ implied that the clinopyroxenes evolved from being enriched in Mg, Ca, and Cr to being enriched in Fe and Ti. The clinopyroxenes had relatively low rare earth element concentrations (7.51 × $ 10^{−6} $ to 12.68 × $ 10^{−6} $) and negative Eu anomalies (δEu = 0.67–0.95). The Kdcpx values of clinopyroxenes (0.2–0.26), which were used to examine whether the clinopyroxene was equilibrated with its host basalt, demonstrate that these clinopyroxene phenocrysts were not captured crystals but were instead produced by crystallization differentiation of the magma. The calculated clinopyroxene crystallization temperatures showed a narrow range of 990–1061°C, and their crystallization pressures ranged from 2.0 to 3.2 kbar. The geochemistry features of these clinopyroxenes indicated that the parent magma belonged to the subalkaline tholeiitic magma series and suggested that the magma experienced crystallization differentiation of olivine, plagioclase, and clinopyroxene, where the crystallization of plagioclase occurred earlier than that of clinopyroxene. Combined with geophysical data, this research on primitive magma and its crystallization differentiation from clinopyroxene indicates that the SOT is in the stage of ‘seafloor spreading’ and that basaltic rocks produced from tholeiitic magma represent the generation of oceanic crust. © Ocean University of China, Science Press and Springer-Verlag GmbH Germany 2024 |
| abstractGer |
Abstract The major and trace elemental compositions of clinopyroxene from basalt were used to characterize the nature of the primitive magma and structural environment beneath the southern Okinawa Trough (SOT), which is an initial back-arc basin at a continental margin. The clinopyroxenes in the basalt were augite with variable $ Mg^{#} $ contents (73.37–78.22). The regular variations in major oxide contents (i.e., CaO, FeO, $ TiO_{2} $, and Cr) with decreasing $ Mg^{#} $ implied that the clinopyroxenes evolved from being enriched in Mg, Ca, and Cr to being enriched in Fe and Ti. The clinopyroxenes had relatively low rare earth element concentrations (7.51 × $ 10^{−6} $ to 12.68 × $ 10^{−6} $) and negative Eu anomalies (δEu = 0.67–0.95). The Kdcpx values of clinopyroxenes (0.2–0.26), which were used to examine whether the clinopyroxene was equilibrated with its host basalt, demonstrate that these clinopyroxene phenocrysts were not captured crystals but were instead produced by crystallization differentiation of the magma. The calculated clinopyroxene crystallization temperatures showed a narrow range of 990–1061°C, and their crystallization pressures ranged from 2.0 to 3.2 kbar. The geochemistry features of these clinopyroxenes indicated that the parent magma belonged to the subalkaline tholeiitic magma series and suggested that the magma experienced crystallization differentiation of olivine, plagioclase, and clinopyroxene, where the crystallization of plagioclase occurred earlier than that of clinopyroxene. Combined with geophysical data, this research on primitive magma and its crystallization differentiation from clinopyroxene indicates that the SOT is in the stage of ‘seafloor spreading’ and that basaltic rocks produced from tholeiitic magma represent the generation of oceanic crust. © Ocean University of China, Science Press and Springer-Verlag GmbH Germany 2024 |
| abstract_unstemmed |
Abstract The major and trace elemental compositions of clinopyroxene from basalt were used to characterize the nature of the primitive magma and structural environment beneath the southern Okinawa Trough (SOT), which is an initial back-arc basin at a continental margin. The clinopyroxenes in the basalt were augite with variable $ Mg^{#} $ contents (73.37–78.22). The regular variations in major oxide contents (i.e., CaO, FeO, $ TiO_{2} $, and Cr) with decreasing $ Mg^{#} $ implied that the clinopyroxenes evolved from being enriched in Mg, Ca, and Cr to being enriched in Fe and Ti. The clinopyroxenes had relatively low rare earth element concentrations (7.51 × $ 10^{−6} $ to 12.68 × $ 10^{−6} $) and negative Eu anomalies (δEu = 0.67–0.95). The Kdcpx values of clinopyroxenes (0.2–0.26), which were used to examine whether the clinopyroxene was equilibrated with its host basalt, demonstrate that these clinopyroxene phenocrysts were not captured crystals but were instead produced by crystallization differentiation of the magma. The calculated clinopyroxene crystallization temperatures showed a narrow range of 990–1061°C, and their crystallization pressures ranged from 2.0 to 3.2 kbar. The geochemistry features of these clinopyroxenes indicated that the parent magma belonged to the subalkaline tholeiitic magma series and suggested that the magma experienced crystallization differentiation of olivine, plagioclase, and clinopyroxene, where the crystallization of plagioclase occurred earlier than that of clinopyroxene. Combined with geophysical data, this research on primitive magma and its crystallization differentiation from clinopyroxene indicates that the SOT is in the stage of ‘seafloor spreading’ and that basaltic rocks produced from tholeiitic magma represent the generation of oceanic crust. © Ocean University of China, Science Press and Springer-Verlag GmbH Germany 2024 |
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Elemental Compositions of Clinopyroxenes from Southern Okinawa Trough Basalt: Implications for Magmatism and Structural Environment in an Initial Back-Arc Basin |
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Zhai, Shikui Fan, Di Zhang, Xia Zhang, Yu Zhu, Zhimin |
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| score |
7.400199 |