Pub Date : 2025-12-13DOI: 10.1016/j.gca.2025.12.017
Philip A.E. Pogge von Strandmann, Xianyi Liu, Chun-Yao Liu, Sigurður R. Gíslason, Kevin W. Burton
{"title":"High magnesium isotope ratios in subglacial icelandic waters: impacts of carbonate precipitation and implications for CO2 sequestration","authors":"Philip A.E. Pogge von Strandmann, Xianyi Liu, Chun-Yao Liu, Sigurður R. Gíslason, Kevin W. Burton","doi":"10.1016/j.gca.2025.12.017","DOIUrl":"https://doi.org/10.1016/j.gca.2025.12.017","url":null,"abstract":"","PeriodicalId":327,"journal":{"name":"Geochimica et Cosmochimica Acta","volume":"20 1","pages":""},"PeriodicalIF":5.0,"publicationDate":"2025-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145731848","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-12-13DOI: 10.1016/j.gca.2025.12.018
Davide Mariani, Riccardo Tribuzio, Tong Liu, Fu-Yuan Wu, Alberto Zanetti
The Southern Alps expose the Permian Mafic Complex, an 8 km thick gabbro-diorite intrusion formed during the post-collisional phase of the Variscan orogeny. The lower sector of the Mafic Complex mainly consists of amphibole-rich gabbros, thereby suggesting the emplacement of H2O-rich magmas in deep levels of the extending continental crust. To ascertain the nature of these magmas and the processes driving to their chemical differentiation, we have carried out a petrological-geochemical study of a 2.5 km thick section from the Lower Mafic Complex. The amphibole gabbros display a widespread foliation developed under hyper-solidus conditions and locally include concordant layers consisting of: (i) amphibole-free norites enclosing granulite-facies metasedimentary lenses, and (ii) amphibole-rich ultramafic rocks. The amphibole gabbros display Mg# [molar Mg/(Mg + Fe2+tot) × 100] ranging from 48 to 68, associated with nearly homogeneous incompatible trace element signature and Nd-Sr-O isotopic compositions. The Mg# variations therefore record a magmatic differentiation process with no substantial assimilation of crustal material. In detail, the amphibole gabbros have an enriched Nd-Sr isotopic signature (i.e., initial εNd ca. −3.3, initial 87Sr/86Sr ca. 0.7071) that is coupled with a moderate O isotopic enrichment (δ18OWR = +6.3 ‰ to +6.5 ‰, δ18OPx = +6.4 ‰ to +6.9 ‰). The norites typically have an evolved chemical signature and slightly enriched Nd-Sr-O isotopic compositions compared to the amphibole gabbros, indicating that the two rock-types were cogenetically related through a process of crustal contamination. Assimilation of crustal material was driven by anhydrous melts released from basement granulite-facies metasediments and was promoted by extensional deformation. We estimated that 15 % crustal component inhibited the crystallization of Ca-rich mafic silicates (i.e., amphibole and clinopyroxene) and triggered the orthopyroxene saturation in the melt. The ultramafic rocks interlayered with the amphibole gabbros provide evidence for involvement of chemically distinct magma pulses and record reaction processes with melts derived from the adjacent crystallizing gabbros. The primary magmas forming the studied section of the Lower Mafic Complex were most likely generated from a H2O-rich mantle source of subcontinental lithospheric origin undergoing different extents of partial melting. The building of the whole Mafic Complex involved primary magmas derived from mantle sources having markedly heterogeneous compositions.
{"title":"Underplating of H2O-rich magmas in post-collisional tectonic settings","authors":"Davide Mariani, Riccardo Tribuzio, Tong Liu, Fu-Yuan Wu, Alberto Zanetti","doi":"10.1016/j.gca.2025.12.018","DOIUrl":"https://doi.org/10.1016/j.gca.2025.12.018","url":null,"abstract":"The Southern Alps expose the Permian Mafic Complex, an 8 km thick gabbro-diorite intrusion formed during the post-collisional phase of the Variscan orogeny. The lower sector of the Mafic Complex mainly consists of amphibole-rich gabbros, thereby suggesting the emplacement of H<ce:inf loc=\"post\">2</ce:inf>O-rich magmas in deep levels of the extending continental crust. To ascertain the nature of these magmas and the processes driving to their chemical differentiation, we have carried out a petrological-geochemical study of a 2.5 km thick section from the Lower Mafic Complex. The amphibole gabbros display a widespread foliation developed under hyper-solidus conditions and locally include concordant layers consisting of: (i) amphibole-free norites enclosing granulite-facies metasedimentary lenses, and (ii) amphibole-rich ultramafic rocks. The amphibole gabbros display Mg# [molar Mg/(Mg + Fe<ce:sup loc=\"post\">2+</ce:sup><ce:inf loc=\"post\">tot</ce:inf>) × 100] ranging from 48 to 68, associated with nearly homogeneous incompatible trace element signature and Nd-Sr-O isotopic compositions. The Mg# variations therefore record a magmatic differentiation process with no substantial assimilation of crustal material. In detail, the amphibole gabbros have an enriched Nd-Sr isotopic signature (i.e., initial ε<ce:inf loc=\"post\">Nd</ce:inf> ca. −3.3, initial <ce:sup loc=\"post\">87</ce:sup>Sr/<ce:sup loc=\"post\">86</ce:sup>Sr ca. 0.7071) that is coupled with a moderate O isotopic enrichment (δ<ce:sup loc=\"post\">18</ce:sup>O<ce:inf loc=\"post\">WR</ce:inf> = +6.3 ‰ to +6.5 ‰, δ<ce:sup loc=\"post\">18</ce:sup>O<ce:inf loc=\"post\">Px</ce:inf> = +6.4 ‰ to +6.9 ‰). The norites typically have an evolved chemical signature and slightly enriched Nd-Sr-O isotopic compositions compared to the amphibole gabbros, indicating that the two rock-types were cogenetically related through a process of crustal contamination. Assimilation of crustal material was driven by anhydrous melts released from basement granulite-facies metasediments and was promoted by extensional deformation. We estimated that 15 % crustal component inhibited the crystallization of Ca-rich mafic silicates (i.e., amphibole and clinopyroxene) and triggered the orthopyroxene saturation in the melt. The ultramafic rocks interlayered with the amphibole gabbros provide evidence for involvement of chemically distinct magma pulses and record reaction processes with melts derived from the adjacent crystallizing gabbros. The primary magmas forming the studied section of the Lower Mafic Complex were most likely generated from a H<ce:inf loc=\"post\">2</ce:inf>O-rich mantle source of subcontinental lithospheric origin undergoing different extents of partial melting. The building of the whole Mafic Complex involved primary magmas derived from mantle sources having markedly heterogeneous compositions.","PeriodicalId":327,"journal":{"name":"Geochimica et Cosmochimica Acta","volume":"41 1","pages":""},"PeriodicalIF":5.0,"publicationDate":"2025-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145753350","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-12-12DOI: 10.1016/j.gca.2025.11.044
Kang Chen, Pengyuan Han, Roberta L. Rudnick, Jingliang Guo, Zhaochu Hu
{"title":"Average trace element composition of the upper continental crust derived from an integrated study of sedimentary and igneous rocks","authors":"Kang Chen, Pengyuan Han, Roberta L. Rudnick, Jingliang Guo, Zhaochu Hu","doi":"10.1016/j.gca.2025.11.044","DOIUrl":"https://doi.org/10.1016/j.gca.2025.11.044","url":null,"abstract":"","PeriodicalId":327,"journal":{"name":"Geochimica et Cosmochimica Acta","volume":"7 1","pages":""},"PeriodicalIF":5.0,"publicationDate":"2025-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145731850","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-12-12DOI: 10.1016/j.gca.2025.12.016
My E.I. Riebe, Nicola M. Allen, Colin Maden
{"title":"Constraining the maximum temperature of atmospheric entry heating of dust particles and the effects of flash heating on He and Ne","authors":"My E.I. Riebe, Nicola M. Allen, Colin Maden","doi":"10.1016/j.gca.2025.12.016","DOIUrl":"https://doi.org/10.1016/j.gca.2025.12.016","url":null,"abstract":"","PeriodicalId":327,"journal":{"name":"Geochimica et Cosmochimica Acta","volume":"29 1","pages":""},"PeriodicalIF":5.0,"publicationDate":"2025-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145731847","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-12-10DOI: 10.1016/j.gca.2025.12.009
Nicole M.B. Williamson, Laura D. Bilenker, Dominique Weis
{"title":"Whole-rock Fe isotope compositions as mantle source and process tracers across the Hawaiian archipelago","authors":"Nicole M.B. Williamson, Laura D. Bilenker, Dominique Weis","doi":"10.1016/j.gca.2025.12.009","DOIUrl":"https://doi.org/10.1016/j.gca.2025.12.009","url":null,"abstract":"","PeriodicalId":327,"journal":{"name":"Geochimica et Cosmochimica Acta","volume":"6 1","pages":""},"PeriodicalIF":5.0,"publicationDate":"2025-12-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145732624","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-12-10DOI: 10.1016/j.gca.2025.12.011
Cheng Cao, Weiqiang Li, Tianyu Chen, Jun Chen, Yuanfeng Cai
{"title":"Global K cycle revisited: The role of arc hydrothermal systems","authors":"Cheng Cao, Weiqiang Li, Tianyu Chen, Jun Chen, Yuanfeng Cai","doi":"10.1016/j.gca.2025.12.011","DOIUrl":"https://doi.org/10.1016/j.gca.2025.12.011","url":null,"abstract":"","PeriodicalId":327,"journal":{"name":"Geochimica et Cosmochimica Acta","volume":"22 1","pages":""},"PeriodicalIF":5.0,"publicationDate":"2025-12-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145732116","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-12-10DOI: 10.1016/j.gca.2025.12.008
S.A. Crowther, J.S. Cowpe, L. Fawcett, J.D. Gilmour, R. Okazaki, F. Kitajima, T. Yada, S. Tachibana, K. Yogata, K. Sakamoto, H. Yurimoto, T. Nakamura, T. Noguchi, H. Naraoka, H. Yabuta, S. Watanabe, Y. Tsuda, M. Nishimura, A. Nakato, A. Miyazaki, M. Abe, T. Okada, T. Usui, M. Yoshikawa, T. Saiki, S. Tanaka, F. Terui, S. Nakazawa, H. Busemann, K. Hashizume, B. Marty, A. Meshik, M.E.I. Riebe, D. Krietsch, C. Maden, A. Ishida, P. Clay, T. Lawton, M.W. Broadley, D.J. Byrne, E. Füri, L. Zimmermann, O. Pravdivtseva, Y.N. Miura, J. Park, K. Bajo, Y. Takano, K. Yamada, S. Kawagucci, Y. Matsui, M. Yamamoto, K. Righter, S. Sakai, N. Iwata, N. Shirai, M. Inagaki, M. Ebihara, K. Nishiizumi, K. Nagao, J.I. Lee, A. Kano, M.W. Caffee, R. Uemura
{"title":"An I-Xe age 8 Myr after solar system formation in a Hayabusa2 sample records alteration on the parent planetesimal of asteroid Ryugu","authors":"S.A. Crowther, J.S. Cowpe, L. Fawcett, J.D. Gilmour, R. Okazaki, F. Kitajima, T. Yada, S. Tachibana, K. Yogata, K. Sakamoto, H. Yurimoto, T. Nakamura, T. Noguchi, H. Naraoka, H. Yabuta, S. Watanabe, Y. Tsuda, M. Nishimura, A. Nakato, A. Miyazaki, M. Abe, T. Okada, T. Usui, M. Yoshikawa, T. Saiki, S. Tanaka, F. Terui, S. Nakazawa, H. Busemann, K. Hashizume, B. Marty, A. Meshik, M.E.I. Riebe, D. Krietsch, C. Maden, A. Ishida, P. Clay, T. Lawton, M.W. Broadley, D.J. Byrne, E. Füri, L. Zimmermann, O. Pravdivtseva, Y.N. Miura, J. Park, K. Bajo, Y. Takano, K. Yamada, S. Kawagucci, Y. Matsui, M. Yamamoto, K. Righter, S. Sakai, N. Iwata, N. Shirai, M. Inagaki, M. Ebihara, K. Nishiizumi, K. Nagao, J.I. Lee, A. Kano, M.W. Caffee, R. Uemura","doi":"10.1016/j.gca.2025.12.008","DOIUrl":"https://doi.org/10.1016/j.gca.2025.12.008","url":null,"abstract":"","PeriodicalId":327,"journal":{"name":"Geochimica et Cosmochimica Acta","volume":"20 1","pages":""},"PeriodicalIF":5.0,"publicationDate":"2025-12-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145731857","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-12-09DOI: 10.1016/j.gca.2025.12.010
Caroline H. Koschik, Xiao-Ming Liu
{"title":"Formation of glauconite with co-occurring apatite traces marine rare earth element behavior: evidence from US Atlantic continental margin sediments","authors":"Caroline H. Koschik, Xiao-Ming Liu","doi":"10.1016/j.gca.2025.12.010","DOIUrl":"https://doi.org/10.1016/j.gca.2025.12.010","url":null,"abstract":"","PeriodicalId":327,"journal":{"name":"Geochimica et Cosmochimica Acta","volume":"66 1","pages":""},"PeriodicalIF":5.0,"publicationDate":"2025-12-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145731861","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-12-09DOI: 10.1016/j.gca.2025.12.012
Chengyu Zhang, Mengchun Cao, Na Li
Zinc (Zn) is an essential micronutrient for marine phytoplankton and exhibits a strong linear correlation with the major nutrient silicon in modern oceans. In recent years, Zn isotopes (δ66Zn) in marine carbonates have been increasingly used as proxies for reconstructing past marine productivity. However, improved understanding of the modern marine Zn cycle suggests that this potential link may be obscured by multiple biotic and abiotic factors. Additionally, the diverse mineralogical types and broad δ66Zn ranges reported for carbonate archives have raised ongoing debates about the reliability of marine carbonates in recording seawater zinc isotopic composition. Here, we present new δ66Zn data from 39 bulk carbonate sediment samples collected from two shallow-water push cores (Jiuzhang Atoll) in the South China Sea. The samples yield relatively consistent δ66Zn values across depth profiles, averaging +0.28 ± 0.11 ‰ (2SD), suggesting that shallow-water carbonates may serve as promising archives for palaeoceanographic reconstructions. However, comprehensive comparison with other recent carbonates—considering both Zn isotopic compositions and concentrations—suggests that the original seawater δ66Zn signatures recorded in ancient carbonate rocks were likely modified by depositional and diagenetic processes. These processes include mixing between inorganic primary calcite and biogenic carbonates, and the redox conditions of pore waters during deposition. Furthermore, the low Zn concentrations in modern primary carbonates—only about 3 % of those in ancient carbonate rocks—highlight their high susceptibility to diagenetic alteration. In addition, the wide spatial variability of modern surface seawater δ66Zn complicates the establishment of a consistent isotopic offset for calibrating ancient carbonates. Together, our findings call for caution when employing carbonate-hosted Zn isotopes as proxies for past ocean productivity, particularly given the unresolved uncertainties regarding the relationship between seawater δ66Zn and marine primary production.
{"title":"Evaluating shallow-water carbonates as archives for seawater zinc isotope compositions: implications for palaeoceanographic studies","authors":"Chengyu Zhang, Mengchun Cao, Na Li","doi":"10.1016/j.gca.2025.12.012","DOIUrl":"10.1016/j.gca.2025.12.012","url":null,"abstract":"<div><div>Zinc (Zn) is an essential micronutrient for marine phytoplankton and exhibits a strong linear correlation with the major nutrient silicon in modern oceans. In recent years, Zn isotopes (δ<sup>66</sup>Zn) in marine carbonates have been increasingly used as proxies for reconstructing past marine productivity. However, improved understanding of the modern marine Zn cycle suggests that this potential link may be obscured by multiple biotic and abiotic factors. Additionally, the diverse mineralogical types and broad δ<sup>66</sup>Zn ranges reported for carbonate archives have raised ongoing debates about the reliability of marine carbonates in recording seawater zinc isotopic composition. Here, we present new δ<sup>66</sup>Zn data from 39 bulk carbonate sediment samples collected from two shallow-water push cores (Jiuzhang Atoll) in the South China Sea. The samples yield relatively consistent δ<sup>66</sup>Zn values across depth profiles, averaging +0.28 ± 0.11 ‰ (2SD), suggesting that shallow-water carbonates may serve as promising archives for palaeoceanographic reconstructions. However, comprehensive comparison with other recent carbonates—considering both Zn isotopic compositions and concentrations—suggests that the original seawater δ<sup>66</sup>Zn signatures recorded in ancient carbonate rocks were likely modified by depositional and diagenetic processes. These processes include mixing between inorganic primary calcite and biogenic carbonates, and the redox conditions of pore waters during deposition. Furthermore, the low Zn concentrations in modern primary carbonates—only about 3 % of those in ancient carbonate rocks—highlight their high susceptibility to diagenetic alteration. In addition, the wide spatial variability of modern surface seawater δ<sup>66</sup>Zn complicates the establishment of a consistent isotopic offset for calibrating ancient carbonates. Together, our findings call for caution when employing carbonate-hosted Zn isotopes as proxies for past ocean productivity, particularly given the unresolved uncertainties regarding the relationship between seawater δ<sup>66</sup>Zn and marine primary production.</div></div>","PeriodicalId":327,"journal":{"name":"Geochimica et Cosmochimica Acta","volume":"414 ","pages":"Pages 1-14"},"PeriodicalIF":5.0,"publicationDate":"2025-12-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145731856","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-12-07DOI: 10.1016/j.gca.2025.12.007
Sarah Fleischmann, Jianghui Du, Brian Haley, James McManus, Mingzhao Sun, Derek Vance
The use of nickel (Ni) and its isotope system as biogeochemical tracers of past ocean environments requires a sound understanding of the oceanic mass balance and the sinks that control output fluxes. Recent efforts have focused in particular on quantifying and understanding the size and Ni isotope composition of the most complicated and largest sink of Ni from the dissolved oceanic pool, the output to oxic Mn-rich sediments. The precise processes controlling Ni and its isotopes during early diagenesis in oxic sediments are not yet fully understood, but could impact estimates of the net oxic sink used in oceanic mass balance calculations. To address this issue, we present Ni concentration and isotope data from fully oxic Mn-rich sediments and corresponding porewater samples from 3 stations in the Equatorial North Pacific, south of Hawai’i.
{"title":"The behaviour of Ni and its isotopes during early diagenesis of Mn oxide-rich abyssal sediments","authors":"Sarah Fleischmann, Jianghui Du, Brian Haley, James McManus, Mingzhao Sun, Derek Vance","doi":"10.1016/j.gca.2025.12.007","DOIUrl":"https://doi.org/10.1016/j.gca.2025.12.007","url":null,"abstract":"The use of nickel (Ni) and its isotope system as biogeochemical tracers of past ocean environments requires a sound understanding of the oceanic mass balance and the sinks that control output fluxes. Recent efforts have focused in particular on quantifying and understanding the size and Ni isotope composition of the most complicated and largest sink of Ni from the dissolved oceanic pool, the output to oxic Mn-rich sediments. The precise processes controlling Ni and its isotopes during early diagenesis in oxic sediments are not yet fully understood, but could impact estimates of the net oxic sink used in oceanic mass balance calculations. To address this issue, we present Ni concentration and isotope data from fully oxic Mn-rich sediments and corresponding porewater samples from 3 stations in the Equatorial North Pacific, south of Hawai’i.","PeriodicalId":327,"journal":{"name":"Geochimica et Cosmochimica Acta","volume":"1 1","pages":""},"PeriodicalIF":5.0,"publicationDate":"2025-12-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145704869","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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