Journal of Structural Geology最新文献

{"title":"Multi-millennia slip rate relationships between closely spaced across-strike faults: Temporal earthquake clustering of the Skinos and Pisia Faults, Greece, from in situ 36Cl cosmogenic exposure dating","authors":"Sam Mitchell ,&nbsp;Claudia Sgambato ,&nbsp;Jenni Robertson ,&nbsp;Gerald P. Roberts ,&nbsp;Joanna P. Faure Walker ,&nbsp;Zoë Mildon ,&nbsp;Athanassios Ganas ,&nbsp;Ioannis Papanikolaou ,&nbsp;Francesco Iezzi ,&nbsp;Joakim Beck ,&nbsp;Steven A. Binnie ,&nbsp;Tibor Dunai ,&nbsp;Damián A. López ,&nbsp;Georgios Deligiannakis ,&nbsp;Silke Mechernich ,&nbsp;Klaus Reicherter ,&nbsp;Elias J. Rugen","doi":"10.1016/j.jsg.2025.105445","DOIUrl":"10.1016/j.jsg.2025.105445","url":null,"abstract":"<div><div>This study investigates slip behaviour on overlapping, <em>en echelon</em> normal faults by analysing the slip histories of the Skinos and Pisia active normal faults over the past ∼20 kyrs using <em>in situ</em> ³⁶Cl cosmogenic dating. New ³⁶Cl data from the Skinos Fault and published Pisia Fault ³⁶Cl data were modelled, with both sample sites located within an overlap zone and separated by an across-strike distance of 1–2 km. Our analysis reveals fluctuating slip rates, with the two faults alternating between out-of-phase and simultaneous slip. The Pisia Fault exhibited a slip rate of ∼0.5–0.75 mm/yr from ∼20 ka to ∼9.6 ka, increasing to ∼1.25 mm/yr until ∼5.2 ka. It then slowed to ∼0.25 mm/yr or less until ∼2.0 ka, before accelerating again to ∼1.25–1.5 mm/yr to the present day. The Skinos Fault maintained a low slip rate of ∼0.25 mm/yr or less from ∼20 ka to ∼6.4 ka, before accelerating to ∼2.0–3.0 mm/yr, persisting to ∼1.0 ka or possibly the present-day. Comparing their slip histories, the faults show periods of simultaneous slip between ∼6.4 ka to ∼5.2 ka and ∼2.0 ka to ∼1.0–0.0 ka, and out-of-phase slip occurred between ∼9.6 ka and ∼6.4 ka, and from ∼5.2 ka to ∼2.0 ka. Out-of-phase behaviour on faults across strike has now been observed on faults spaced across-strike at distances of 1–2 km, 10–20 km, and ∼100 km, raising the question of why it occurs. Possible mechanism(s), including rheological fluctuations within fault/shear-zone structures linked between the brittle upper crust and viscous lower crust and stress interactions, are discussed to explain the out-of-phase and simultaneous slip behaviour.</div></div>","PeriodicalId":50035,"journal":{"name":"Journal of Structural Geology","volume":"198 ","pages":"Article 105445"},"PeriodicalIF":2.6,"publicationDate":"2025-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143904537","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Quartz microstructures and crystallographic preferred orientation analysis across the Himalayan metamorphic core reveal exhumation through changing taper angle and strain partitioning along discreet fault zones","authors":"Aranya Sen ,&nbsp;Swarnendu Roy ,&nbsp;Daeyeong Kim ,&nbsp;Koushik Sen","doi":"10.1016/j.jsg.2025.105446","DOIUrl":"10.1016/j.jsg.2025.105446","url":null,"abstract":"<div><div>The Himalayan metamorphic core in the Bhagirathi Valley of North India comprises three major tectonic zones: the Main Central Thrust zone (MCTz) that separates the Paleoproterozoic Lesser Himalayan Crystalline rocks from the Proterozoic to Cambro-Ordovician Greater Himalayan Sequence; the High Himalayan Discontinuity (HHD) that separates the lower inverted metamorphic sequence from the upper anatectic part of the GHS; and the Jhala Normal Fault (JNF) that marks the northernmost boundary of this metamorphic core. Quartz microstructural analyses across this metamorphic core indicate that dynamic recrystallization at lower temperatures overprinted the high-temperature deformation features, also evident from dominant prism&lt;a&gt; slip in quartz. Strength of quartz crystallographic preferred orientation (CPO) is also highest at these locations. Vorticity analysis suggests simple shear partitioning in the JNF and MCTz, with pure shear in other parts. It is concluded that the exhumation of the Himalayan metamorphic core was facilitated by simple shear along the JNF and MCTz, with thrust propagation south of MCTz compensating for changes in the taper angle of the Himalayan wedge due to activity along the JNF.</div></div>","PeriodicalId":50035,"journal":{"name":"Journal of Structural Geology","volume":"197 ","pages":"Article 105446"},"PeriodicalIF":2.6,"publicationDate":"2025-04-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143882867","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Deformation and recrystallization mechanisms in glacier salt: Evolution of microstructures inferred from EBSD and microstructural analyses (Kuh-e-Namak diapir (Dashti, Iran))","authors":"Julia Schmitz ,&nbsp;Prokop Závada ,&nbsp;Janos L. Urai ,&nbsp;Karel Schulmann","doi":"10.1016/j.jsg.2025.105441","DOIUrl":"10.1016/j.jsg.2025.105441","url":null,"abstract":"<div><div>This study presents a detailed microstructural analysis of salt samples collected from the exposed mountain glacier in Iran, the Kuh-e-Namak (Dashti). Our goal is to pinpoint the different deformation mechanisms leading to grain size reduction and, how these, together with the influx of rainwater and development of porosity, affect the creep of the polycrystalline halite. We investigated 17 gamma-irradiated thin sections by transmitted and reflected light microscopy, quantitative grain and subgrain statistics, and crystallographic-preferred orientation (CPO) mapping using Electron Back Scattered Diffraction (EBSD). The microstructural evidence suggests a combination of solution-precipitation accompanied by grain-boundary sliding and dynamic recrystallization. The grain size decreases by subgrain rotation recrystallization, microcracking, and grain boundary migration by three different mechanisms: 1) grain boundary bulging into grains, 2) nucleation of new grains and, 3) segmentation of porphyroclasts by planar domains of dynamic recrystallization. The mean grain size ranges from 118 to 508 μm and subgrain sizes from 14 to 99 μm from which differential stresses between 1.9 and 10.2 MPa were calculated. Inferred strain rates for the glacier are in the order of magnitude of 10⁻¹⁰-10⁻⁸ s⁻¹. The increasing shape-preferred orientation of halite grains from the crestal domal part of the diapir towards the frontal parts of extrusive glaciers is interpreted as a result of dominant solution-precipitation creep and salt flow. Rainwater influx rendering this important deformation mechanism switch is attributed to the development of porosity along microcracks and grain boundaries.</div></div>","PeriodicalId":50035,"journal":{"name":"Journal of Structural Geology","volume":"198 ","pages":"Article 105441"},"PeriodicalIF":2.6,"publicationDate":"2025-04-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143904538","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The impact of hydrothermal silicification on fault zone porosity and permeability: insights from the Kornos-Aghios Ioannis normal fault, Lemnos Island, Greece","authors":"L.R. Berio ,&nbsp;F.H.R. Bezerra ,&nbsp;M.F.P. Brito ,&nbsp;M.A.F. Rodrigues ,&nbsp;F. Storti ,&nbsp;F. Balsamo","doi":"10.1016/j.jsg.2025.105444","DOIUrl":"10.1016/j.jsg.2025.105444","url":null,"abstract":"<div><div>In fault zones, silica-bearing hydrothermal fluids may strongly affect petrophysical and mechanical properties of rocks with significant implications on fluid storage and flow potential. However, it is extremely difficult to predict the geometry and petrophysical properties of silicified rocks around km-long fault zones affecting reservoirs. The Kornos-Aghios Ioannis Fault (KAIF) is a 10-km long silicified extensional fault system juxtaposing volcanic rocks against turbidite sandstones. In this study, we investigate the distribution, petrophysics and mineralogy of silicified rocks through a multi-analytical approach that combines X-ray diffraction analysis, Hg-intrusion porosimetry, digital image analysis, X-ray micro-computed tomography and unsteady-state gas permeametry. Silicification is mostly localized in the footwall sandstones and extends 50–300 m from the master fault. The porosity of silicified fault cores and silicified sandstones varies over a wide range (1–13 %) depending on the degree of post-silicification dissolution that is strongly controlled by the mineralogy. However, the permeability of silicified rocks always decayed by 2–3 orders of magnitude with respect to pristine host rocks. In silicified volumes, permeability drops imparted by cementation are partially counterbalanced by higher fracture density and connectivity because of increased rock brittleness. Our results show that hydrothermal silicification along fault zones may severely degrade reservoir quality in the surrounding areas, where its effect can be locally counterbalanced by an excess permeability produced by silica dissolution, fractures, and subsidiary faults. However, the intensity and extension of silicification and dissolution are spatially variable, controlling the along-strike distribution of potentially sealing and non-sealing areas.</div></div>","PeriodicalId":50035,"journal":{"name":"Journal of Structural Geology","volume":"197 ","pages":"Article 105444"},"PeriodicalIF":2.6,"publicationDate":"2025-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143882866","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Structural geology in active tectonic regions: An introduction","authors":"Soumyajit Mukherjee ,&nbsp;Swagato Dasgupta ,&nbsp;G. Ian Alsop","doi":"10.1016/j.jsg.2025.105443","DOIUrl":"10.1016/j.jsg.2025.105443","url":null,"abstract":"","PeriodicalId":50035,"journal":{"name":"Journal of Structural Geology","volume":"198 ","pages":"Article 105443"},"PeriodicalIF":2.6,"publicationDate":"2025-04-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143904105","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Discrete-element numerical simulations of thrust-related folding: Insights into back-limb deformation","authors":"Wenxiong Yang ,&nbsp;Gang Rao ,&nbsp;Pengcheng Tang ,&nbsp;Chao Zhu ,&nbsp;Renfu Wang","doi":"10.1016/j.jsg.2025.105442","DOIUrl":"10.1016/j.jsg.2025.105442","url":null,"abstract":"<div><div>The theory of thrust-related folding has significantly enhanced our comprehension of the kinematic evolution of folds, especially those associated with fault ramps. Despite extensive research into the deformation mechanisms of the fore-limb in the hanging wall folds, the factors influencing back-limb deformation remain relatively underexplored. This study employs a series of discrete-element simulations to investigate the evolution of ramp-related folding, particularly focusing on the factors governing the development of back-thrusts. Comparative analyses reveal diverse deformation styles within the hanging wall of a ramp fold. Notably, when the upper layer exhibits significantly greater strength relative to the lower layer, and an intermediate décollement exists between them, decoupled deformation occurs, characterized by back-thrusting predominantly in the lower layer. This phenomenon is analogous to the deep thrust belts beneath the Shizigou anticline in the western Qaidam Basin, northern Tibetan Plateau, where multiple hydrocarbon-bearing layers have been identified. The findings offer significant insights into the mechanisms of thrust-related folding, thereby improving efficient hydrocarbon exploration in relevant regions. Furthermore, unlike the commonly reported nucleation of a fault ramp from the basal décollement or at an intermediate level, our observations indicate initiation from the shallow section. The detailed mechanism underlying such differential deformation warrant further investigation.</div></div>","PeriodicalId":50035,"journal":{"name":"Journal of Structural Geology","volume":"197 ","pages":"Article 105442"},"PeriodicalIF":2.6,"publicationDate":"2025-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143877275","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"External and internal salt geometries – a mining and geoscience review","authors":"P.A. Kukla ,&nbsp;J.L. Urai ,&nbsp;S. Back ,&nbsp;F. Sachse","doi":"10.1016/j.jsg.2025.105438","DOIUrl":"10.1016/j.jsg.2025.105438","url":null,"abstract":"<div><div>The Central European Basin System contains the Permian Zechstein salt giant, which includes a large number and variety of subsurface salt structures formed by salt tectonics in Mesozoic and Cenozoic times. Early descriptions of salt-body geometries originate mostly from salt-mining activities of the early 20th century in Germany and Poland. Inventories found in the mines are primarily documented as line drawings and from descriptions of miners and mine geologists. With the advancement of geophysical acquisition of the past decades, in particular active multidimensional seismic-reflection surveying combined with borehole geophysics and numerical and analogue modelling techniques, the description and interpretation of the external form of salt bodies and internal salt stratigraphy and geometry has made a major step forward. This study highlights the value of integrating detailed high-resolution salt-system knowledge from legacy field and mining data with modern 2D and 3D seismic-reflection data and observations from modelling for improved geological subsurface interpretations in salt terrains. Such integration will play an important role in the increased utilization of subsurface salt structures in the context of energy-transition strategies and the sustainable storage of renewable energy materials and waste.</div></div>","PeriodicalId":50035,"journal":{"name":"Journal of Structural Geology","volume":"197 ","pages":"Article 105438"},"PeriodicalIF":2.6,"publicationDate":"2025-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143873569","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Fluid infiltration in the southern segment of the Red River Fault, China: Insights from rock magnetic, mineralogical, and geochemical analyses of fault rocks","authors":"Erhui Ren ,&nbsp;Xiuli Yan ,&nbsp;Tao Yang ,&nbsp;Tsafrir Levi ,&nbsp;Ram Weinberger ,&nbsp;Shmuel Marco ,&nbsp;Lishun Luo ,&nbsp;Guodong Wang","doi":"10.1016/j.jsg.2025.105437","DOIUrl":"10.1016/j.jsg.2025.105437","url":null,"abstract":"<div><div>Fluid infiltration within fault zones is intimately linked to the physical and chemical attributes of fault rocks, thereby playing a critical role in deformation and evolution of faults. Magnetic properties of fault rocks have proven to be an emerging source of information on faulting processes. To document evidence of fluid infiltration within the Red River Fault (RRF), detailed rock magnetic measurements in combination with mineralogical, and geochemical analyses are conducted on fault rocks collected from the Matouzhai outcrop along the range-front fault of the southern segment of the RRF. The results reveal that the ferrimagnetic fraction in the fault rocks is dominated by magnetite, with a small amount of hematite present in (proto-)cataclasites and fault gouges. Magnetic grain size and concentration decrease significantly from host rocks (mylonitized gneiss), via (proto-)cataclasites to fault gouges. Fault gouges are enriched in volatiles (CO₂, LOI, H₂O⁺), rare earth elements (REEs), and calcite, but are depleted in high-field strength (HFS) elements and exhibit negative δEu and δCe anomalies. These results indicate pervasive infiltration of the fault zone by CO₂-rich oxidizing hydrothermal fluids, leading to the depletion of magnetite and oxidation of magnetite to hematite, with dissolution of silicates and precipitation of abundant calcite (high pH). Magnetic parameters, particularly the high-field magnetic susceptibility, show significant correlations with HFS elements and REEs. These observations suggest that the rock magnetic properties of fault rocks are highly sensitive to fluid infiltration, and could serve as indicators of fluid conditions and fluid-rock interactions within fault zones.</div></div>","PeriodicalId":50035,"journal":{"name":"Journal of Structural Geology","volume":"197 ","pages":"Article 105437"},"PeriodicalIF":2.6,"publicationDate":"2025-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143873570","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Magnetic and microstructural perspectives on faulting in carbonate rocks, northern Israel","authors":"Sreyashi Bhowmick ,&nbsp;Tsafrir Levi ,&nbsp;Yuval Boneh ,&nbsp;Shmuel Marco ,&nbsp;Tao Yang ,&nbsp;Bhupesh Meher ,&nbsp;Ram Weinberger","doi":"10.1016/j.jsg.2025.105436","DOIUrl":"10.1016/j.jsg.2025.105436","url":null,"abstract":"<div><div>Shallow crustal faulting involves complex processes, including brittle and ductile deformation, frictional heating, and fluid interaction, which may all leave distinct geological signatures. However, deciphering these mechanisms is challenging. This study investigates the deformation near two faults in northern Israel: the active Nahef East fault and the Qiryat Shemona fault, a major strand of the Dead Sea Fault (DSF) system, both cutting through diamagnetic carbonate rocks. We employ a range of methods, including anisotropy of magnetic susceptibility (AMS), magnetic properties, electron backscatter diffraction (EBSD), and geochemical analyses to target specific faulting processes. Both faults exhibit magnetic fabrics with foliations formed by AMS maximum (K₁) and intermediate (K₂) axes which are scattered on a plane sub-parallel to fault surfaces, extending ∼0.5 m from these fault surfaces. In the Nahef East fault, slight changes in magnetic properties, overall mineralogy and microstructures such as lobate calcite grains, indicate moderate temperatures (&lt;200-250 °C), and fluid interaction, which constrains grain reorientation and the development of crystallographic preferred orientation (CPO). Conversely, in the Qiryat Shemona fault, the small (∼5 μm) twinned calcite grains indicate moderate to high temperatures (&gt;250–300 °C), high stress (≥100 MPa) and dry conditions, potentially reflecting the fault's maturity. Distinct deformation fabrics and microstructural features around these faults reveal localized plastic deformation. The results underscore a potential gap between the extent of deformation observed in natural faults and those replicated in laboratory experiments, likely due to limited sample size and timescale considerations in laboratory settings.</div></div>","PeriodicalId":50035,"journal":{"name":"Journal of Structural Geology","volume":"198 ","pages":"Article 105436"},"PeriodicalIF":2.6,"publicationDate":"2025-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143936237","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Microstructural evolution of compacted granular salt: insights from 40-year-old backfill at a former potash mine (Sigmundshall, northern Germany)","authors":"Kristoff Svensson ,&nbsp;Bart van Oosterhout ,&nbsp;Jürgen Hesser ,&nbsp;Christopher J. Spiers ,&nbsp;Ben Laurich","doi":"10.1016/j.jsg.2025.105429","DOIUrl":"10.1016/j.jsg.2025.105429","url":null,"abstract":"<div><div>Compacted granular salt backfill is widely regarded as the most favorable geotechnical barrier for sealing a radioactive waste repository within a rock salt formation. However, the reduction of salt backfill porosity and permeability during compaction by slowly converging cavity walls is still a matter of on-going research, both in laboratory and underground experiments, as well as in computational forecasting. Here, we present an in-depth microstructural analysis of a dense, formerly deployed salt backfill material, recovered from the decommissioned salt mine Sigmundshall, Bokeloh, Germany. The backfill compacted over 40 years, resulting in as little as 1 % porosity (+4/-1 %). Some differences are inevitable compared to a potential future backfill emplaced in a radioactive repository, notably in grain size, moisture content and backfill height (178 m vs. ∼ 5 m). However, this valuable “natural laboratory” sampling opportunity has allowed microstructural evidence to be sought for the deformation mechanisms that control salt backfill compaction under in-situ deployment conditions and on timescales that cannot be achieved in laboratory tests. For the present example of grain sizes in the range of 50 μm to 3 mm, our results show that more or less complete densification of granular salt is feasible in a timeframe of decades (&lt;40 y). Pressure solution is likely the main deformation mechanism along with limited cataclasis, which presumably occurred only in the early stages during/after emplacement. This conclusion is evident from tight, indenting, truncating and interpenetrating grain boundaries, as well as from the fact that almost all grains appear to be substructure-free, despite limited signs of recrystallization. The absence of intra-crystalline deformation indicators excludes dislocation creep as a compaction-contributing mechanism, which, on the other hand, is known to occur in many laboratory-based compaction tests. We outline the impact of this difference on the long-term in-situ compaction under repository conditions.</div><div>Note: The Sigmundshall mine is not considered as a future repository for radioactive waste.</div></div>","PeriodicalId":50035,"journal":{"name":"Journal of Structural Geology","volume":"197 ","pages":"Article 105429"},"PeriodicalIF":2.6,"publicationDate":"2025-04-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143877277","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}