Gondwana Research最新文献

{"title":"Conodont diversity, biostratigraphy, and environmental dynamics: Unravelling the Smithian-Spathian transition at Guryul Ravine, Kashmir","authors":"Marc Leu ,&nbsp;Morgane Brosse ,&nbsp;Aymon Baud ,&nbsp;Ghulam Bhat ,&nbsp;Torsten Vennemann ,&nbsp;Hugo Bucher ,&nbsp;Nicolas Goudemand","doi":"10.1016/j.gr.2025.02.028","DOIUrl":"10.1016/j.gr.2025.02.028","url":null,"abstract":"<div><div>The late Smithian and Smithian-Spathian boundary (SSB) witnessed significant conodont extinction approximately 2.7 million years after the major Permian-Triassic boundary extinction. This study offers a detailed examination of the Smithian-Spathian transition at the Guryul Ravine section in the Srinagar district, Kashmir, focusing on conodonts and δ¹³C_carb values. The section features an unprecedented conodont taxonomic richness, with 53 species from 17 genera, including three newly formalized species: <em>Neospathodus aristatus</em> n. sp., <em>Neospathodus guryulensis</em> n. sp. and <em>Borinella</em>? <em>prima</em> n. sp. Additionally, <em>Borinella</em> ex gr. <em>buurensis</em> and <em>Scythogondolella</em> ex gr. <em>milleri</em> are subdivided into multiple morphotypes, facilitating a refined biochronological scheme.</div><div>A high-resolution δ¹³C_carb record spanning the Early Triassic captures global carbon isotope excursions. The integration of δ¹³C_carb with conodont biostratigraphy enhances global correlation of the Smithian-Spathian transition. The late Smithian conodont extinction aligns with a globally observed positive δ¹³C_carb excursion, reaching an exceptional value of + 12 ‰, likely of diagenetic origin.</div><div>This study proposes a new conodont biochronological framework based on the Unitary Association Method (UAM). Placing the SSB between the extinction climax and re-diversification onset, the framework relies on a rich conodont collection from Guryul Ravine, Kashmir, and a comprehensive reassessment of conodont data from 19 other sections along the northern Gondwana margin. The resulting 16 Unitary Association Zones (UAZs) are cross-referenced with lithological, chemostratigraphical (δ¹³C_carb), and ammonoid markers, establishing an unprecedentedly robust basis for defining the SSB. The proposed boundary is within UAZ₈ but allows for future refinements.</div></div>","PeriodicalId":12761,"journal":{"name":"Gondwana Research","volume":"142 ","pages":"Pages 152-184"},"PeriodicalIF":7.2,"publicationDate":"2025-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143777620","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":"Towards urban low-carbon industrial development through air pollution reduction: A spatiotemporal synergy perspective","authors":"Kang Gao","doi":"10.1016/j.gr.2025.02.030","DOIUrl":"10.1016/j.gr.2025.02.030","url":null,"abstract":"<div><div>The consistency of air pollutant and carbon dioxide emissions in urban spaces raises a critical topic for sustainable urban development: Whether efforts to reduce air pollution (APR) can lead to a decrease in carbon emissions and enhance productivity, thereby facilitating the transition of urban industries to low-carbon development. This study amalgamates diverse datasets, including socio-economic indicators and satellite-derived information, to investigate the spatiotemporal synergy between APR and industrial total factor carbon productivity (ITFCP) in 280 cities of China. Our initial findings indicate that both APR and ITFCP in Chinese cities are on an upward trajectory, exhibiting a strong positive long-term dynamic correlation, and the APR’s positive influence on ITFCP shows a delayed effect. Additionally, the coupling coordination degree (CCD) is intensifying, with an average annual growth rate of 1.50%. Furthermore, we identify a significant local and spatial synergies between APR and ITFCP. Beijing, Tianjin, and Chongqing have entered a stage of intermediate coupling coordination ((0.6,0.8]). However, 61.4 % of the 280 cities are still in the stage of mild disequilibrium ((0.2,0.4]). Although the CCD has seen an overall upward trend across all regions, there is a potential risk of a downward shift in the western cities. The complex network structure of APR and ITFCP radiates from key urban clusters such as the Yangtze River Delta, the Pearl River Delta, and the Beijing-Tianjin-Hebei, creating a broad radiation effect. The CCD exhibits positive spatial correlations, with high-value areas concentrated along the eastern coastal cities and lower values in inland cities. In conclusion, the strong consistency and high association of APR and ITFCP in both space and time suggest that APR can indeed synergistically reduce carbon emissions and boost productivity, making it a viable strategy for advancing the urban industry’s low-carbon development.</div></div>","PeriodicalId":12761,"journal":{"name":"Gondwana Research","volume":"142 ","pages":"Pages 212-235"},"PeriodicalIF":7.2,"publicationDate":"2025-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143800308","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":"Differential magmatism and tectonic evolution during the rift stage within the Baiyun Sag of the Pearl River Mouth Basin in the northern South China Sea","authors":"Bo Yan ,&nbsp;Xuan-Long Shan ,&nbsp;Zhe Wei ,&nbsp;Guo-Li Hao ,&nbsp;Peng-Lin Zhang ,&nbsp;Ling Ma ,&nbsp;Zhi-Hao Wang ,&nbsp;Pu-Jun Wang ,&nbsp;N.G. Boriskina","doi":"10.1016/j.gr.2025.03.002","DOIUrl":"10.1016/j.gr.2025.03.002","url":null,"abstract":"<div><div>To investigate the magma-related formation mechanisms and structural evolution of sags within a passive continental margin setting/configuration, we selected the Baiyun Sag in the Pearl River Mouth Basin (PRMB) and identified its spatiotemporal magmatic distribution during the rift stage based on high-precision 3D seismic data, drilling data, and geochemical data. Totally three stages of <em>syn</em>-rift magmatism were revealed. Strong and continuous crustal extension and thinning, crustal extension and thinning with simultaneous magmatic activity, and intermittent crustal extension and thinning were suggested to be the development mechanisms of the main Baiyun Sub-Sag (M-BSS), eastern Baiyun Sub-Sag (E-BSS), and western Baiyun Sub-Sag (W-BSS), respectively. Complex multi-stage magmatism is the direct cause of the formation of high-angle sag-controlled faults with low-angle detachment characteristics in the Baiyun Sag. In addition, we explored the genesis of the multi-episodic magmatism, dynamic mechanisms, and differential evolution of fault basin structures in the Baiyun sag, which are essentially related to the reactivation of Mesozoic pre-existing faults, the differential extension-induced flow of the Cenozoic lithosphere material, and the along-fault magmatic material upwelling. This study not only serves as a significant guidance for oil and gas exploration in the Eocene strata of the northern SCS, but also provides insightful ideas for analyzing magmatic and tectonic activity in other petroliferous basins with a similar setting.</div></div>","PeriodicalId":12761,"journal":{"name":"Gondwana Research","volume":"142 ","pages":"Pages 185-211"},"PeriodicalIF":7.2,"publicationDate":"2025-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143790979","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":"Tectonic attribute of the Lincang terrane in the eastern Tethyan domain","authors":"Xinchen Yuan ,&nbsp;Junlai Liu ,&nbsp;Chaojie Zheng ,&nbsp;Chengyang Ling ,&nbsp;Tianyu Zhao ,&nbsp;Xiaoyu Chen ,&nbsp;Hongshuai Shan ,&nbsp;Yue Hou ,&nbsp;Lei Ji","doi":"10.1016/j.gr.2025.03.003","DOIUrl":"10.1016/j.gr.2025.03.003","url":null,"abstract":"<div><div>Closure of the Proto–Tethys Ocean and opening of the Paleo–Tethys Ocean played crucial role in the global plate tectonic reconfiguration in the early to late Paleozoic transition. How the Proto– and Paleo–Tethys transition occurred in the eastern Tethyan domain has been a topic of hot debates in the last decades. Compilation of published and our new data on detrital zircon U–Pb dating and whole–rock geochemical analysis from the Lincang and contiguous blocks in the eastern Tibetan Plateau provide constraints on the paleogeographic positions and tectonic affinities of these blocks during the Proto– to Paleo–Tethys Ocean evolution in the Paleozoic. The results show that the Lincang terrane, as a magmatic arc terrane, was geographically proximal to the Baoshan block in the northern margin of the Australian and Indian plates of the Gondwana during the early Paleozoic. The block, however, drifted as part of the passive margin of the South China–Indochina block in the Paleo–Tethys Ocean and received sedimentary inputs from the latter. Through MDS analysis of detrital zircon data, the Yunxian-Menghai Proto–Tethys ocean to Changning-Menglian Paleo–Tethys ocean, in which the Baoshan and Lincang blocks were evolved. The Changning-Menglian Paleo-Tethys Ocean opened as a post-collisional rift basin. Closure of the Proto–Tethys Ocean was followed by opening of the Paleo–Tethys Ocean that separated the Lincang terrane from the Greater Gondwana. This study reveals that changes in mantle convection regime during the plate interactions and evolution of ocean basins are the primary driving forces behind the subduction of oceanic plates, and rifting and drifting of continental blocks. The study underscores the intricate dynamics of plate tectonics and the significance of geochronological and geochemical investigations in deciphering the complex history of continental blocks and plate interactions.</div></div>","PeriodicalId":12761,"journal":{"name":"Gondwana Research","volume":"143 ","pages":"Pages 125-141"},"PeriodicalIF":7.2,"publicationDate":"2025-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143864183","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":"Metamorphic evolution of overriding plate reveals the deep geodynamic process during continental subduction and collision: Insights from the North Qaidam tectonic belt, northern Tibetan Plateau","authors":"Yijie Gao ,&nbsp;Delong Jing ,&nbsp;Yuegao Liu ,&nbsp;Min Zhao ,&nbsp;Kai Zhou ,&nbsp;Jiangwei Zhang ,&nbsp;Huilei Kong ,&nbsp;Shuangshuang Wang ,&nbsp;Ningchao Zhou","doi":"10.1016/j.gr.2025.02.029","DOIUrl":"10.1016/j.gr.2025.02.029","url":null,"abstract":"<div><div>The timing and mechanism of the transition from continental subduction to exhumation (TSE) are important perspectives to decipher the tectonic evolution of orogenic belt. The difficulties in discriminating prograde, peak and retrograde eclogite-facies zircon in subducted continental rocks make it hard to constrain the timing of TSE. Actually, the TSE would cause the extension of the overriding plate and thus theoretically influence the metamorphic pressure–temperature evolution of rocks from the overriding plate, which, in turn, provides a potential approach to recover the TSE. An integrated study of petrography, mineral chemistry, zircon and monazite geochronology and geochemistry, conventional geothermometer and phase equilibrium modeling was carried out on the pelitic gneisses collected from Oulongbuluke block of the North Qaidam tectonic belt. The pelitic gneisses preserve distinct mineral assemblages, textures and compositions corresponding to prograde, peak, and retrograde metamorphism. Trace element signature and U–Pb geochronology of zircon and monazite record remarkable abundance changes of garnet and plagioclase at ca. 434 Ma. The data, coupled with <em>P–T</em> results obtained from conventional geothermometer and phase equilibrium modeling, reveal a clockwise pressure–temperature<em>-</em>time path, which is characterized by a peak <em>P–T</em> condition of 5.7–6.5 kbar and 713–736 °C at ca. 434 Ma, and a retrograde decompression and cooling process to 3.8–4.2 kbar and 659–672 °C; the metamorphic peak at ca. 434 Ma undoubtedly formed in the context of continental subduction and collision, and the retrograde decompression and cooling process of rocks from the overriding Oulongbuluke block fits well with the numerical results of deep slab-breakoff. The results link the first reported Silurian peak metamorphism of the Oulongbuluke block to the deep geodynamic process, and would help to understand the tectonic evolution of the North Qaidam tectonic belt and zircon behavior during metamorphism.</div></div>","PeriodicalId":12761,"journal":{"name":"Gondwana Research","volume":"143 ","pages":"Pages 1-19"},"PeriodicalIF":7.2,"publicationDate":"2025-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143829557","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":"Microplastics in the black-odor rivers in Harbin city, China: Abundance, characteristics, and ecological risk assessment","authors":"Shuangshuang Wang ,&nbsp;Lanjin Fang ,&nbsp;Kejing Wang ,&nbsp;Xingbin Sun","doi":"10.1016/j.gr.2025.02.026","DOIUrl":"10.1016/j.gr.2025.02.026","url":null,"abstract":"<div><div>Microplastics (MPs) pollution has been found in natural water environments, but there are no studies on the presence of MPs in black-odor rivers. In this paper, the microplastics were initially identified by chemical digestion and microscopic identification, and then the abundance, characteristics and polymer types of MPs in water and sediment samples were identified by laser infrared spectroscopy. Then, the correlation of MPs and various environmental factors were examined, and discussed the source analysis, environmental impact factors, and potential ecological risks of MPs. Results showed that the microplastic abundance of the black-odor rivers in Harbin city was at an upper middle level. PET, PP, PE, PU and ACR were the major polymers. Fiber, transparent, and 50–100 μm were dominant shape, color, and size of MPs, respectively. Major sources of MPs in Dongfeng River and Hejia River were domestic sewage, sewage treatment plant effluent, and agricultural source. Microplastics abundance in surface water of black-odor rivers was inversely related to dissolved oxygen (DO) and positively related to the concentration of total organic carbon (TOC), ammonia nitrogen (NH₄-N), and phosphates (H₃PO₄). Indices of pollution load (PLI_river) and the hazard index (PHI_river) yielded a Hazard Level I and III for MPs pollution in black-odor rivers, respectively. Potential ecological risk of the composite MPs polymer (ERI_river) is at a medium to considerable risk level. Our findings established the first set of baseline data on MPs pollution in black-odor rivers which would improve the understanding of MPs fate and ecological risk in polluted rivers.</div></div>","PeriodicalId":12761,"journal":{"name":"Gondwana Research","volume":"142 ","pages":"Pages 108-119"},"PeriodicalIF":7.2,"publicationDate":"2025-03-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143768589","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":"Volcanism-driven synchronous terrestrial and marine anoxia during the Kungurian (early Permian)","authors":"Kai Zhou ,&nbsp;Minfang Yang ,&nbsp;Shuo Zhang ,&nbsp;Ran Gao ,&nbsp;Peixin Zhang ,&nbsp;Longyi Shao ,&nbsp;Weichao Wang ,&nbsp;Lei Wang ,&nbsp;Jing Lu ,&nbsp;Jason Hilton","doi":"10.1016/j.gr.2025.02.027","DOIUrl":"10.1016/j.gr.2025.02.027","url":null,"abstract":"<div><div>During the Late Paleozoic Icehouse (LPI) interval from the Late Devonian to the Late Permian, Earth transitioned repeatedly between icehouse to greenhouse conditions and widespread ocean anoxic conditions prevailed in the Kungurian stage of the Permian. Previous studies of Kungurian anoxia have focused on marine strata, and the driving mechanism for these dramatic environmental and climatic changes are poorly understood. We studied Kungurian-aged deltaic deposits from the Yuzhou Coalfield in the southern North China Platform to investigate terrestrial environmental conditions contemporaneous with anoxic marine strata. A significant anoxic interval was recognized by high-resolution mineralogical and geochemical analyses that coincides with the Kungurian negative carbon isotope excursion (KCIE) and peaks in Hg/TOC ratio. Proxy evidence from the Yuzhou Coalfield shows this anoxic interval was accompanied by warmer and more humid climates, high paleo-productivity, and strong continental weathering. We attribute early Kungurian anoxia in the Yuzhou Coalfield to carbon cycle perturbation due to its synchronous occurrence with the KCIE and volcanism in the Tarim and Zaduo large igneous provinces. Based on the relationship between <em>p</em>CO₂ concentration and carbon isotope fractionation, we suggest that volcanic eruptions, magma intrusions into organic-rich storage, and methane hydrate dissolution released large quantities of isotopically depleted carbon into the atmosphere, leading to the KCIE. Massive emissions of volcanic Hg contributed to the mercury anomaly in sedimentary strata. Global climatic warming likely enhanced oceanic evaporation and intensified the hydrological cycle, resulting in increased continental weathering, terrestrial runoff and nutrient inputs, as well as water stratification and widespread bottom water anoxia in marine and terrestrial settings. Our results show that Kungurian anoxia occurred synchronously in both marine and freshwater settings, as it did in the stratigraphically younger Toarcian (T-OAE) and Cretaceous (OAE1a and OAE1b) Ocean Anoxic Events (OAEs).</div></div>","PeriodicalId":12761,"journal":{"name":"Gondwana Research","volume":"142 ","pages":"Pages 120-129"},"PeriodicalIF":7.2,"publicationDate":"2025-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143768590","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":"Editorial Board (IFC)","authors":"","doi":"10.1016/S1342-937X(25)00074-7","DOIUrl":"10.1016/S1342-937X(25)00074-7","url":null,"abstract":"","PeriodicalId":12761,"journal":{"name":"Gondwana Research","volume":"141 ","pages":"Page IFC"},"PeriodicalIF":7.2,"publicationDate":"2025-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143714562","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":"A Paleozoic history of Armorica recounted through anorogenic to vaugneritic magmatism","authors":"Martial Caroff ,&nbsp;Bernard Le Gall ,&nbsp;Nicolas Estèves ,&nbsp;Jean-Alix Barrat ,&nbsp;Jessica Langlade ,&nbsp;Céline Liorzou ,&nbsp;Philippe Nonnotte ,&nbsp;Marie-Laure Rouget","doi":"10.1016/j.gr.2025.02.024","DOIUrl":"10.1016/j.gr.2025.02.024","url":null,"abstract":"<div><div>The Plouaret-Commana-Huelgoat (PCH) vaugnerite-granite complex, emplaced at around 315 Ma on both sides of the North Armorican Shear Zone (NASZ) in the Armorican Massif (France), can be regarded as the “axial pivot” around which a large part of the history of the Armorican magmatism was revolving. Indeed, four main magmatic cycles can be distinguished in the Ordovician/Early Permian time-span over much of the considered areas, i.e. North and Central Armorican Domains (N/CAD): (1) several anorogenic mafic complexes (plutons, dykes and/or lavas) were successively emplaced from the Ordovician to Early Carboniferous; (2) near the Bashkirian/Moscovian time-boundary, when the N/CAD started to record the effects of the Variscan collision, magmatism became predominantly lamprophyric/vaugneritic (K-rich West-Armorican kersantites and PCH vaugnerites), prior to (3) the generalized granitic peak during the Moscovian-Kasimovian ages, in turn followed by (4) a K-rich intermediate magmatic activity, including again vaugnerites and the last granitic intrusions, during the late-/post-collision stages in the upper Pennsylvanian-Early Permian time-period. The sharp geochemical break evidenced in the present work between an early anorogenic magmatic group and a syn- to post-collisional system in the N/CAD emphasizes the original magmatic history recorded by part of Armorica, including probably the Central Iberian Zone (CIZ), during the nearly entire Paleozoic era compared to those commonly applied to the rest of the European Variscan orogen. This evolution is assumed to result from: (1) large-scale asthenospheric upheavals due to the downward straightening and retreat of variously plunging slabs during the Paleozoic times, (2) partial melting of metasomatized lithospheric/asthenospheric mantle due to fluid release from fragments of buried continental crust, and (3) crustal anatexis.</div></div>","PeriodicalId":12761,"journal":{"name":"Gondwana Research","volume":"142 ","pages":"Pages 130-151"},"PeriodicalIF":7.2,"publicationDate":"2025-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143768591","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":"Proterozoic crustal evolution of the eastern Vindhyan basin, central India: Constraints from geophysical and geochronological data","authors":"Choppalli Visweswara Rao,&nbsp;Sumanta Kumar Sathapathy,&nbsp;Munukutla Radhakrishna,&nbsp;Yellalacheruvu Giri,&nbsp;Peringat Unnikrishnan Naveen","doi":"10.1016/j.gr.2025.03.001","DOIUrl":"10.1016/j.gr.2025.03.001","url":null,"abstract":"<div><div>The Vindhyan basin is one of the major Proterozoic basins in the Indian shield bounded by Central Indian Tectonic Zone (CITZ) in the south and Bundelkhand craton in the north having thick sedimentary succession. Interaction of basin with CITZ and its imprints on regional crustal structure is important to understand its evolution. In this study, a detailed interpretation of gravity and aeromagnetic anomaly maps with constraints from multi-channel seismic data is carried out in the Son valley part of the Vindhyan basin to identify its structural links with the surrounding tectonic domains. The 3-D gravity inversion along with 2-D gravity and magnetic modelling helped to delineate the crustal architecture and Moho geometry which reveal that the Moho below the basin varies between 38–46 km with the deepest Moho in southern part along its boundary. The crustal models in the study area further reveal i) higher density and magnetization for lower Vindhyan sediments because of intrusive rocks/ volcano clastic sediments, ii) the eastern part of basin is devoid of crustal underplating iii) basement high, complex rift tectonics and basin tilting in Damoh region, iv) undulating crustal layers intervened by deep crustal faults in the southern part of the basin and the CITZ region, and v) the Bundelkhand Tectonic Zone and Madaura Shear Zone in the craton are characterized by deep crustal faults. In this paper, we propose a geodynamic evolutionary model of the Vindhyan basin which reveals opening of the basin subsequent to the formation of CITZ during ∼ 2000–2200 Ma. The basin sediments were deposited in multiple stages during 1700–1000 Ma followed by the basin closure during 1000–750 Ma. Hence, it is inferred that the post tectonic activity of the CITZ affected the Son Narmada fault zone and facilitated the opening of Vindhyan basin during the Paleoproterozoic period.</div></div>","PeriodicalId":12761,"journal":{"name":"Gondwana Research","volume":"142 ","pages":"Pages 92-107"},"PeriodicalIF":7.2,"publicationDate":"2025-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143747505","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}