Earth and Planetary Science Letters最新文献

{"title":"Resolving mercury cycling and the role of volcanism during the Toarcian Oceanic Anoxic Event","authors":"Jinchao Liu ,&nbsp;Jian Cao ,&nbsp;Simon W. Poulton ,&nbsp;Wang Zheng ,&nbsp;Jiubin Chen ,&nbsp;Tianchen He ,&nbsp;Guang Hu ,&nbsp;Di Xiao","doi":"10.1016/j.epsl.2025.119323","DOIUrl":"10.1016/j.epsl.2025.119323","url":null,"abstract":"<div><div>The emplacement of the Ferrar large igneous province has been implicated as the ultimate driver of the Early Jurassic Toarcian Oceanic Anoxic Event (T-OAE). Mercury (Hg) systematics, alongside other lines of evidence, have been used to support this assumption, but controversy exists over the relative roles of volcanic versus terrestrial Hg inputs. Here, we investigate the Hg record in two cores that document a bathymetric transect across the lacustrine Sichuan Basin, China. Both cores are characterized by Hg accumulation during the Toarcian Oceanic Anoxic Event. However, observed negative correlations between Hg concentrations and geochemical indicators of water column sulfide availability suggest modification of primary Hg enrichments via redox-driven loss of Hg from the sediments. In addition, Hg isotope systematics show differing signals between the shallow and deep cores, indicative of increased inputs from terrestrial and atmospheric sources, respectively. These results suggest that regional factors exert a major control on Hg enrichments in sediments, which must be considered when utilizing Hg systematics to evaluate volcanic activity. However, our approach highlights that lacustrine systems do document an important role for atmospheric Hg deposition during the Toarcian Oceanic Anoxic Event, confirming that large-scale activity of the Ferrar large igneous province was a key driver of this major environmental perturbation.</div></div>","PeriodicalId":11481,"journal":{"name":"Earth and Planetary Science Letters","volume":"658 ","pages":"Article 119323"},"PeriodicalIF":4.8,"publicationDate":"2025-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143629236","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}

{"title":"Eccentricity and obliquity forcing of East Asian hydroclimate during the latest Cretaceous to early Paleocene","authors":"Xiaoyue Zhang ,&nbsp;David B. Kemp ,&nbsp;Ruiyao Zhang ,&nbsp;Robert A. Spicer ,&nbsp;Simin Jin ,&nbsp;Rui Zhang ,&nbsp;Ze Zhang ,&nbsp;Chunju Huang","doi":"10.1016/j.epsl.2025.119306","DOIUrl":"10.1016/j.epsl.2025.119306","url":null,"abstract":"<div><div>The latest Cretaceous to early Paleocene was characterized by a global ‘greenhouse’ climate, and may provide a useful analogue for understanding hydroclimate responses to elevated atmospheric CO₂ and temperature. However, a paucity of high-resolution and temporally well-constrained continental sedimentary records spanning this time interval hinders our understanding. We address this issue via a high-resolution paleoenvironmental analysis of a ∼1305 m thick terrestrial succession from the Asian interior (Gonjo Basin, Southeast Tibet). Cyclostratigraphic analysis of element abundance data, combined with a published magnetostratigraphy, allows us to establish an astronomical timescale spanning the latest Cretaceous to early Paleocene (∼69.4 Ma to ∼58.5 Ma) and investigate climatic variations at an orbital time-scale. We show that the paleoenvironment of the Gonjo Basin underwent two key transitions, with a shift from braided river conditions to floodplain-dominated conditions at ∼68.8 Ma, followed by a return to braided river conditions with likely high seasonality at ∼63.5 Ma. Eccentricity and obliquity forcing exerted a strong control on the regional hydrological cycle. We show that the relative strength of obliquity was likely amplified compared to coeval marine records. Obliquity may have modulated meridional heat and moisture transport into the Asian interior, which, combined with feedbacks from quasi-stable carbon reservoirs, mediated hydroclimate. This study improves our understanding of continental paleoclimate evolution in the latest Cretaceous to early Paleocene, and establishes the role and mechanisms of orbital forcing as a driver of hydrological cycle change in East Asia at this time.</div></div>","PeriodicalId":11481,"journal":{"name":"Earth and Planetary Science Letters","volume":"658 ","pages":"Article 119306"},"PeriodicalIF":4.8,"publicationDate":"2025-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143611103","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}

{"title":"Link between crustal thickness and Moho transition zone at 9°N East Pacific Rise","authors":"Zhikai Wang ,&nbsp;Satish C. Singh ,&nbsp;J. Pablo Canales","doi":"10.1016/j.epsl.2025.119309","DOIUrl":"10.1016/j.epsl.2025.119309","url":null,"abstract":"<div><div>Oceanic crust is formed from basaltic melt produced by decompression melting due to mantle upwelling at mid-ocean ridges. This crust is separated from the underlying mantle either by a sharp Mohorovičić (Moho) discontinuity or a thick Moho transition zone (MTZ). Determining the relationship between the oceanic crustal structure and the MTZ is critical for understanding the crustal accretion processes at mid-ocean ridges. However, this relationship remains elusive due to the lack of high-resolution velocity model of the oceanic crust and MTZ. Here, we present result from the application of full waveform inversion to wide-angle seismic data acquired over a young oceanic crust near the 9°N East Pacific Rise, allowing us to obtain the crustal and MTZ thicknesses along a ∼70 km-long segment. We find that the crustal thickness and the MTZ thickness vary along the segment and they are inversely correlated, although the total cumulative thickness does not vary much along the profile. These variations could be attributed to the different melt migration efficiency or the variations in mantle thermal/chemical structure, indicating mantle heterogeneity along the ridge.</div></div>","PeriodicalId":11481,"journal":{"name":"Earth and Planetary Science Letters","volume":"658 ","pages":"Article 119309"},"PeriodicalIF":4.8,"publicationDate":"2025-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143620099","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Molybdenum isotope evidence for subduction-modified mantle beneath mid-ocean ridges","authors":"Zuxing Chen ,&nbsp;Fang-Zhen Teng ,&nbsp;Robert J. Stern ,&nbsp;Yuxiang Zhang ,&nbsp;Jie Li ,&nbsp;Zhigang Zeng","doi":"10.1016/j.epsl.2025.119294","DOIUrl":"10.1016/j.epsl.2025.119294","url":null,"abstract":"<div><div>\"Ghost\" arc geochemical signatures persistently occur in mid-oceanic ridge basalts (MORBs), yet their origin remains elusive. Here, we identified arc-like heavy Mo isotopic compositions in basalts from the St. Helena plume-influenced southern Mid-Atlantic Ridge. Their heavy Mo isotopic signature (δ^98/95Mo = –0.21 ‰ to +0.11 ‰), along with relatively low (La/Sm)_N, Nb/Zr, Ce/Pb, and Sr-Nd isotope ratios, cannot be explained by interactions of the depleted mantle with recycled crustal or lithospheric mantle materials or the influence of the St. Helena plume on their mantle source. By integrating seismic tomographic images and plate reconstruction models, we interpret these unique geochemical and heavy Mo isotopic signatures to reflect the inputs of fluid-modified mantle produced during the Mesozoic subduction beneath the southwestern Gondwana convergent margin. Our discovery provides crucial evidence for the role of the paleo-subduction-modified mantle in shaping present-day MORB-mantle heterogeneity and sheds light on the formation of ghost-arc signatures in global MORBs.</div></div>","PeriodicalId":11481,"journal":{"name":"Earth and Planetary Science Letters","volume":"658 ","pages":"Article 119294"},"PeriodicalIF":4.8,"publicationDate":"2025-03-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143579636","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}

{"title":"On the emergence of fault afterslip during laboratory seismic cycles","authors":"Corentin Noël ,&nbsp;Cédric Twardzik ,&nbsp;Pierre Dublanchet ,&nbsp;François Passelègue","doi":"10.1016/j.epsl.2025.119288","DOIUrl":"10.1016/j.epsl.2025.119288","url":null,"abstract":"<div><div>Spatial fault heterogeneity is often invoked to explain the occurrence of fault afterslip following seismic ruptures. In this study, we tested this hypothesis in the laboratory by performing triaxial experiments on both homogeneous and heterogeneous faults, under confining pressures of 30, 60, and 90 MPa. The faults were composed of granite, prone to seismic behaviour, and marble, prone to aseismic behaviour. Unlike homogeneous granite faults, which display a nucleation stage followed by regular seismic events, heterogeneous faults can contain the co-seismic dynamic event within the experimental fault length. During this phase, the aseismic areas adjacent to the dynamic event undergo a stress increase, which is then released by fault afterslip over an extended post-seismic phase. The magnitude and duration of this post-seismic phase increase with confining pressure and with the proportion of aseismic-prone areas. We infer that the enhancement of post-seismic afterslip originates from the increase in the frictional stability of the aseismic-prone area, and of the normal stress acting on the fault. In addition, the observed increase in initial strain rate with normal stress is well explained by the rate-and-state framework. At the scale of our experiments, fault frictional heterogeneities play a primary role in the emergence of fault afterslip.</div></div>","PeriodicalId":11481,"journal":{"name":"Earth and Planetary Science Letters","volume":"658 ","pages":"Article 119288"},"PeriodicalIF":4.8,"publicationDate":"2025-03-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143592052","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Reactive thermodynamics of crustal eclogitization and foundering","authors":"Mitchell McMillan ,&nbsp;Shi Joyce Sim ,&nbsp;Cian R. Wilson","doi":"10.1016/j.epsl.2025.119302","DOIUrl":"10.1016/j.epsl.2025.119302","url":null,"abstract":"<div><div>Regional metamorphism and densification (eclogitization) of the lower crust can affect the lithospheric dynamics of mountain belts, but the coupled effects of reaction rate, temperature, and composition on metamorphism are poorly understood. We present a reactive thermodynamic model of the granulite–eclogite transition to investigate the long-term buoyancy and gravitational stability of the lower crust. First, we characterize the conditions for which orogenic crust attains negative buoyancy by determining its reactive mineral assemblage and density under prescribed pressure–temperature–time paths. Using existing metamorphic rate data, we calibrate a Damkoḧler number (a relative reaction rate) to parameterize the catalytic effect of aqueous fluids. The depth necessary for negative buoyancy is sensitive to temperature and Da, ranging from ∼45 to <figure><img></figure> for a basaltic-andesite composition (54 wt.% SiO₂). Second, using a Rayleigh–Taylor instability analysis, we suggest that, while cold eclogitic crusts &lt;<figure><img></figure> would be strong enough to resist foundering within 50 Myr, warm crusts &gt;<figure><img></figure> could obtain large thicknesses of ∼10 to <figure><img></figure> and would founder within <figure><img></figure>. We hypothesize that such foundering events are a natural consequence of convergent tectonics, where the aqueous fluids and high pressures required for metamorphism are known to exist. The Pampean flat slab in the Central Andes provides geophysical evidence linking slab fluids to eclogitization and densification of the thickened continental crust. Lithospheric foundering coupled to convergent tectonics through eclogitization could explain many observations of orogenic hinterland deformation and magmatism.</div></div>","PeriodicalId":11481,"journal":{"name":"Earth and Planetary Science Letters","volume":"658 ","pages":"Article 119302"},"PeriodicalIF":4.8,"publicationDate":"2025-03-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143580289","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Modeling the global oceanic barium cycle and implications for paleoceanographic proxies","authors":"Hengdi Liang ,&nbsp;Tristan J. Horner ,&nbsp;Seth G. John","doi":"10.1016/j.epsl.2025.119295","DOIUrl":"10.1016/j.epsl.2025.119295","url":null,"abstract":"<div><div>Barium (Ba) abundance is widely utilized as a proxy for deep ocean nutrients and organic carbon export. However, significant uncertainties remain regarding key aspects of the marine Ba cycle, including the primary Ba source to barite, the depths and rates of barite formation and dissolution, mechanisms linking the dissolved Ba and silicon cycles, and regional variability in the barium-to-organic matter ratio of exported particulates. Here, we integrate dissolved Ba observations from GEOTRACES with a model of barite saturation state and employ a mechanistic framework to constrain the major biogeochemical processes governing dissolved Ba distributions. Our results indicate that seawater, rather than organic matter, is the primary Ba source for pelagic barite, with 90 % of precipitation occurring above 900 m. Approximately two-thirds of pelagic barite dissolution occurs in the water column, while the remainder takes place at the seafloor. Dissolution rates appear independent of ambient saturation state, with the best model–data fit achieved when dissolution is treated as a constant-rate process. The similarities between marine Ba and silicon distributions are primarily driven by ocean circulation rather than biological uptake or similarities in the remineralization length scales of barite and opal. Furthermore, our model predicts significant spatial variability in barium-to-organic matter ratios of sinking particulates, challenging the use of Ba as a quantitative proxy for export productivity. Overall, this study provides new insights into the modern marine Ba cycle, highlighting the key role of pelagic barite in regulating dissolved Ba distributions and elucidating the processes that control barite formation and dissolution.</div></div>","PeriodicalId":11481,"journal":{"name":"Earth and Planetary Science Letters","volume":"658 ","pages":"Article 119295"},"PeriodicalIF":4.8,"publicationDate":"2025-03-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143579635","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Strong potassium uptake in surface sediments of the Changjiang River Estuary and the East China Sea: Implications for authigenic processes and the marine potassium budget","authors":"Xuechao Wu ,&nbsp;Shouye Yang ,&nbsp;Klaus Wallmann ,&nbsp;Florian Scholz ,&nbsp;Yanguang Dou ,&nbsp;Junjie Guo ,&nbsp;Xinning Xu","doi":"10.1016/j.epsl.2025.119292","DOIUrl":"10.1016/j.epsl.2025.119292","url":null,"abstract":"<div><div>Potassium (K) is a major cation in seawater, but its budget remains not well understood mainly because of the poor constraint on the authigenic clay formation at the seafloor. Marine authigenic phases are assumed to have played a substantial role in balancing the long-term equilibrium of seawater chemistry and regulating Earth's climate. However, the global importance of K-rich authigenic clay minerals for the marine K budget remains poorly quantified. In this study, we report the K content and its spatial variation along the Changjiang (Yangtze) River-Estuary-East China Sea transect, aiming to reveal the influence of authigenic uptake processes on the marine K budget. By combining our new data on the K composition of various sediment and porewater samples with previously published data, we found that the K/Al ratio of the marine particulate matter is substantially higher than that of the riverine endmember, with the averages of 0.31 ± 0.04 and 0.25 ± 0.02, respectively. Based on the observation of decreasing K concentration with depth in porewater and an increasing abundance of green grains (mostly glauconite-like) towards the shelf, we propose that these geochemical changes are caused by the authigenic uptake of K from seawater. Our preliminary calculation suggests that when upscaled to all the river-dominated ocean margins, the global uptake flux of K is approximately 81 ± 62 Tg yr⁻¹, which is comparable in magnitude with the dissolved flux coming from global rivers. Our findings highlight the role of authigenic mineral formation in modifying the geochemistry of seawater and marine sediments.</div></div>","PeriodicalId":11481,"journal":{"name":"Earth and Planetary Science Letters","volume":"657 ","pages":"Article 119292"},"PeriodicalIF":4.8,"publicationDate":"2025-03-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143577186","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}

{"title":"Strain heterogeneities in laboratory faults driven by roughness and wear","authors":"Sofia Michail ,&nbsp;Paul Antony Selvadurai ,&nbsp;Markus Rast ,&nbsp;Antonio Felipe Salazar Vásquez ,&nbsp;Patrick Bianchi ,&nbsp;Claudio Madonna ,&nbsp;Stefan Wiemer","doi":"10.1016/j.epsl.2025.119247","DOIUrl":"10.1016/j.epsl.2025.119247","url":null,"abstract":"<div><div>Faults in nature display complex surface characteristics, where fault asperities slip dynamically while other sections are more prone to creep. Fault roughness is critical in determining the contact conditions producing asperities, directly impacting their susceptibility to unstable sliding. Understanding the formation of asperities and how their seismic properties evolve with wear is critical for assessing slip budget and earthquake potential. In this study, a triaxial experiment was conducted on a cylindrical saw-cut sample of Carrara marble, to study its frictional evolution and strain response with wear. Initially the interface produced an audible, high stress drop (∼ 21 MPa) stick-slip event. A fiber-optic based distributed strain sensing (DSS) method was used to study the strain heterogeneities and showed that a central asperity was produced, causing the locking of the interface. The central asperity was explained by both the small curvature ratio <span><math><msub><mrow><mi>ρ</mi></mrow><mrow><mi>c</mi></mrow></msub></math></span> = 0.1% and the locking associated with a roughness drag induced by short wavelength fluctuations in roughness <span><math><msub><mrow><mi>λ</mi></mrow><mrow><mi>m</mi><mi>i</mi><mi>n</mi></mrow></msub></math></span> ∼ 1 μm which should have promoted healing. After the audible stick-slip, the fault produced more stable frictional behavior with low magnitude stress drop events (∼ 2 MPa). We attributed this to (<em>i</em>) changes in the rate- and state-dependent frictional (RSF) parameters, <span><math><mo>(</mo><mi>i</mi><mi>i</mi><mo>)</mo></math></span> decreased roughness-induced stiffness in the central asperity due to smoothing and <span><math><mo>(</mo><mi>i</mi><mi>i</mi><mi>i</mi><mo>)</mo></math></span> the heterogeneous deposition of gouge formed due to wear. In terms of frictional stability, normal stress increase and smoothing would promote unstable sliding which was not observed. This led us to conclude that small amounts of gouge pushed the fault closer to the frictional stability line and even produced macroscopic velocity-strengthening behavior. Fault-parallel distributed strain measurements confirmed that the gouge allowed strain to be accommodated close to the interface, in contrast to the off-fault matrix that produced the large stress drop stick-slip event. These measurements also suggested that faults could simultaneously produce a range of frictional behaviors, with microscopically small stress drop silent events. These findings, together with the evolution of calcite-rich surfaces, highlight how roughness and its evolution can affect fault stability and drive strain heterogeneities due to gouge development and smoothing of the main slip surface.</div></div>","PeriodicalId":11481,"journal":{"name":"Earth and Planetary Science Letters","volume":"657 ","pages":"Article 119247"},"PeriodicalIF":4.8,"publicationDate":"2025-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143563369","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Nitrogen-carbon-argon features of the silicate Earth established by deep core-mantle differentiation","authors":"Shengxuan Huang,&nbsp;Taku Tsuchiya","doi":"10.1016/j.epsl.2025.119291","DOIUrl":"10.1016/j.epsl.2025.119291","url":null,"abstract":"<div><div>The processes and periods during which volatile elements were accreted to terrestrial planets provide crucial insights into their evolution and habitability. The bulk silicate Earth (BSE) is extremely depleted in nitrogen and features super-chondritic C/N and ³⁶Ar/N ratios, but their origins are elusive. Here using <em>ab initio</em> molecular dynamics combined with the thermodynamic integration method, we demonstrate that nitrogen remains siderophile under high-pressure and high-temperature, and predict a positive but nonlinear effect of pressure on nitrogen partitioning, which is caused by structural modifications in molten silicate. The nitrogen-carbon-argon characteristics of the BSE could have been established by deep core-mantle differentiation accompanied by simultaneous degassing from the surface of a deep magma ocean. These results underline the significant role of the deep core-mantle differentiation in shaping volatile ratios of the BSE and suggest that a substantial proportion of the Earth's nitrogen-carbon-argon may have been delivered to the proto-Earth by carbonaceous chondrite-like materials during the late stage of the Earth's main accretion. The Earth's distinct volatile ratios from those of carbonaceous chondrites may indicate different accretion times of the Earth's volatiles instead of different volatile sources.</div></div>","PeriodicalId":11481,"journal":{"name":"Earth and Planetary Science Letters","volume":"657 ","pages":"Article 119291"},"PeriodicalIF":4.8,"publicationDate":"2025-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143551722","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}