Jing Ma , Hermann Zeyen , Zhongsheng Li , Wanyin Wang , Yimi Zhang
{"title":"The 3D lithospheric structure of China Seas and adjacent areas: Combining geoid, gravity, and topography data","authors":"Jing Ma , Hermann Zeyen , Zhongsheng Li , Wanyin Wang , Yimi Zhang","doi":"10.1016/j.gr.2025.04.008","DOIUrl":"10.1016/j.gr.2025.04.008","url":null,"abstract":"<div><div>The convergence of the Pacific, Eurasian, Philippine Sea, and Caroline Plates makes the China Seas and adjacent areas a natural laboratory for studying lithospheric evolution at ocean-continent transitions. We present a novel three-dimensional (3D) lithospheric model through an advanced joint inversion framework integrating multi-geophysical datasets (geoid, free air gravity anomaly, topography, and seismic Moho constraints). This study features three key advances: (1) A zonal parameterization scheme achieving higher lateral resolution than conventional models, delineating 15 tectonic units (10 km grid) with distinct thermal and density properties; (2) Integration of seismic Moho constraints, depth-dependent crustal/sedimentary densities, and thermally modulated mantle densities to enable comprehensive lithospheric characterization; (3) Key lithospheric transects reveal: (i) Progressive lithospheric thinning from cratonic basins (Ordos: 160 ± 5 km; Sichuan: 155 ± 7 km) to active margins (Okinawa Trough: 80 ± 10 km), with LAB uplift amplitudes (Bohai Bay: 50 ± 8 km; South China Block: 35 ± 6 km) correlating with Pacific slab rollback; (ii) Seafloor spreading in the South China Sea has resulted in LAB uplift of 40 ± 5 km, associated with mantle upwelling consistent with previous geodynamic modeling. These findings redefine the 3D lithospheric framework of the study area, illustrating the interplay between plate boundary forces, mantle dynamics, and lithospheric deformation across ocean-continent transitions. Although our results don’t change fundamentally the overall lithospheric image of the area, our results provide better constraints for advancing geodynamic models and offer key insights into non-isostatic subduction dynamics within complex plate interactions.</div></div>","PeriodicalId":12761,"journal":{"name":"Gondwana Research","volume":"144 ","pages":"Pages 151-166"},"PeriodicalIF":7.2,"publicationDate":"2025-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144069897","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}
Shengxian Liang , Guangdong Zhao , Mikhail K. Kaban , Xuben Wang , Zhengwei Xu , Jian Yang
{"title":"East-west asymmetry of the deep lithosphere beneath northern Tibet revealed by a 3D gravity inversion","authors":"Shengxian Liang , Guangdong Zhao , Mikhail K. Kaban , Xuben Wang , Zhengwei Xu , Jian Yang","doi":"10.1016/j.gr.2025.04.009","DOIUrl":"10.1016/j.gr.2025.04.009","url":null,"abstract":"<div><div>The Tibetan Plateau, formed by the collision between the Indian and Asian plates during Cenozoic, exhibits asymmetric surface topography, crustal deformation, and magmatic activity since the Middle Miocene in the east–west direction. However, the mechanism controlling the uplift of plateau through lithospheric deformation remains unclear. This study proposes a new lithospheric density model obtained by a 3D gravity inversion constrained by a tomography model. The results reveal a significant east–west variation in the density structure of the lithospheric mantle beneath the vicinity of the Jinsha suture (34–35°N). Taking 89°E as the dividing line, the western region (83–89°E), at depth below ∼ 100 km, exhibits an obvious low-density anomaly (less than −0.1 g/cm<sup>3</sup>), which may be caused by the removal of lower lithosphere and upwelling of asthenosphere material. In contrast, the eastern part (89–95°E), from Moho to depth of ∼ 160 km, shows a high-density anomaly (∼0.05 g/cm<sup>3</sup>) dipping to the south, which may reflect the subduction of the Asian lithospheric mantle beneath Tibet. In summary, the deformation of the deep lithosphere beneath northern Tibet exhibits asymmetric features in the east–west direction. In the west, the loss of the lithospheric root may lead to rapid uplift of the plateau and volcanic activity. In the east, intracontinental subduction is accompanied by the activation of large strike-slip faults and the eastward extrusion of related terranes.</div></div>","PeriodicalId":12761,"journal":{"name":"Gondwana Research","volume":"144 ","pages":"Pages 239-251"},"PeriodicalIF":7.2,"publicationDate":"2025-05-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144115207","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}
Muhammad Haroon Shah , Syed Tauseef Hassan , Irfan Ullah , Yaoyao Wang , Ashfaq Ahmad Shah
{"title":"Sustainable water management practice in South Asian Countries: The importance of water resources, temperature, and bioenergy on ecological footprint","authors":"Muhammad Haroon Shah , Syed Tauseef Hassan , Irfan Ullah , Yaoyao Wang , Ashfaq Ahmad Shah","doi":"10.1016/j.gr.2025.04.004","DOIUrl":"10.1016/j.gr.2025.04.004","url":null,"abstract":"<div><div>The sustainability of essential resources like water, food, and energy is critical for human well-being and societal development. In the ASEAN context, understanding the relationship between economic growth, water resources, temperature, and bioenergy is crucial for shaping effective policies. This study examines the impact of these factors on the ecological footprint, offering insights into the region’s sustainable resource management. A sustainable ecosystem remains a prerequisite for the efficient exploitation and utilization of these resources By utilizing advanced panel econometrics models such as CUP-BC (Continuously-Updated and Bias-Corrected) and CUP-FM (Continuously-Updated and Fully-Modified), and bolstered by common correlated mean group (CCMG) and augmented mean group (AMG) models to ensure robustness. Additionally, the study reveals that the positive relationship between water resources and temperature contributes to an increase in the ecological footprint. It is worth noting that the bioenergy coefficient, which is both negative and significant, indicates a favorable contribution towards the reduction of ecological footprint. The reliability of the study is highlighted by its consistency across multiple models. Policymakers in South Asian nations must give precedence to the implementation of sustainable water management methods in order to successfully address the increasing ecological impact associated with the interrelationship between water resources and temperature. Findings of the study support the recommendation to encourage the adoption of bioenergy as an effective strategy for decreasing ecological impact and promoting environmental sustainability.</div></div>","PeriodicalId":12761,"journal":{"name":"Gondwana Research","volume":"144 ","pages":"Pages 109-122"},"PeriodicalIF":7.2,"publicationDate":"2025-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143937471","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":"Is Net Zero 2050/2060 a sensible forward-looking pathway for human civilization? A geological long-term perspective","authors":"David I. Groves, M. Santosh, Daniel Müller","doi":"10.1016/j.gr.2025.04.006","DOIUrl":"https://doi.org/10.1016/j.gr.2025.04.006","url":null,"abstract":"Since formation of the IPCC, increasing concerns have been voiced about potential climate changes, particularly global warming, caused by anthropogenic CO<ce:inf loc=\"post\">2</ce:inf> emissions. More extreme climate models projected by the media are suggested to cause future global catastrophes such as rapid sea level rise and increasing frequency of destructive weather events. Although no catastrophic predictions have eventuated, anxiety by global governments has led to introduction of incredibly expensive drastic measures to control these emissions through Net Zero 2050. This would mark phase one of an endless energy transition from fossil fuels to clean energy powered by wind turbines and solar panels and clean transport through battery-powered EVs. The dimensions and total cost of this multi-phase transition to serve an increasingly energy-hungry civilization are staggeringly high.","PeriodicalId":12761,"journal":{"name":"Gondwana Research","volume":"89 1","pages":""},"PeriodicalIF":6.1,"publicationDate":"2025-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144083374","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}
Yibo Wang , Chaoqiang Chen , Zhennan Zhong , Yaqi Wang , Shengbiao Hu , Zhonghe Pang
{"title":"Reassessment of heat flow in West–Central China: Implications for the extent of the high heat flow region","authors":"Yibo Wang , Chaoqiang Chen , Zhennan Zhong , Yaqi Wang , Shengbiao Hu , Zhonghe Pang","doi":"10.1016/j.gr.2025.04.002","DOIUrl":"10.1016/j.gr.2025.04.002","url":null,"abstract":"<div><div>Heat flow research in China has evolved significantly over the past 40 years, with notable improvements in quality standards of heat flow data, particularly in West–Central China (WCC). In this study, we developed a multi–parameter evaluation system to evaluate the heat flow data of the WCC. Meanwhile, new heat flow data from recent years were also considered in this study. Based on this, we obtained the reliability factor of heat flow in the WCC and performed mapping. The results of the study show that our novel evaluation system can effectively take into account the variation of heat flow reliability factors and facilitate their matching with the presentation of heat flow map. Furthermore, we offer an in–depth exploration of the spatial distribution and origins of high heat flow regions across the Tibetan Plateau and its adjacent areas. The intricate geological dynamics within the Tibetan Plateau potentially exert significant influences on the broader region of north–central China.</div></div>","PeriodicalId":12761,"journal":{"name":"Gondwana Research","volume":"144 ","pages":"Pages 64-76"},"PeriodicalIF":7.2,"publicationDate":"2025-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143918247","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}
Yifei Leng , Junhao Li , Jun Liu , Fengyi Chang , Zhu Li , Yu Huang , Wen Xiong , Buyun Wu , Bangding Han , Haolun Chen , Yanbin Zhang , Jun Wang
{"title":"Adsorption of methyl parathion on four various microplastics in aqueous solution: Kinetics, isotherms and molecular dynamics simulations","authors":"Yifei Leng , Junhao Li , Jun Liu , Fengyi Chang , Zhu Li , Yu Huang , Wen Xiong , Buyun Wu , Bangding Han , Haolun Chen , Yanbin Zhang , Jun Wang","doi":"10.1016/j.gr.2025.04.005","DOIUrl":"10.1016/j.gr.2025.04.005","url":null,"abstract":"<div><div>Microplastics (MPs) not only have biotoxicity but also affect the migration and bioavailability of many pollutants as their carriers, which pose potential ecological threats. This work mainly focused on the adsorption kinetics, adsorption isotherms, influencing factors (pH, temperature, salinity, particle size, and humic acid), and desorption (in four simulated environments) of an organophosphorus pesticide methyl parathion on four dominant MPs. In addition, MD simulations were used to analyze the adsorption progress of methyl parathion on MPs at a molecular level. The results showed that the methyl parathion reached equilibrium within 48h and the absorption capacity of various MPs for methyl parathion was as follows: polypropylene (0.8357 mg/g) > polyvinyl chloride (0.4285 mg/g) > polystyrene (0.2681 mg/g) > polyethylene (0.2119 mg/g). The adsorption data were described well by the pseudo-second-order kinetics model and Redlich-Petersen isotherms model, respectively, indicating a combination of monolayer and multilayer adsorption. The methyl parathion sorption onto MPs decreased with pH, due to the interaction between MPs and methyl parathion by effecting the surface charge effects of them. The adsorption capacity of methyl parathion on various MPs was also inversely proportional to other environmental factors such as temperature, salinity, and humic acid (HA). Moreover, smaller particle size was beneficial for the adsorption of MPs due to its large specific surface area. The desorption results showed Methyl parathion would desorb from the loaded MPs in all simulated environments such as intestinal juice, simulated intestinal fluid, artificial seawater, and artificial fresh water. Notably, the desorption was most pronounced in artificial freshwater, especially by PP with a desorption rate of 52.48 %. The results of the MD simulation effectively exhibited the adsorption process and characteristics of MPs at different temperatures, particle sizes, and types of MPs. Combine MD simulation, FTIR spectra, and the enthalpy analysis, indicated the adsorption processes occur on the surface of MPs and physical adsorption was the main mechanism. The results of this study may facilitate a better understanding of the MPs as sources and carriers for organic contaminants in various environments.</div></div>","PeriodicalId":12761,"journal":{"name":"Gondwana Research","volume":"144 ","pages":"Pages 33-48"},"PeriodicalIF":7.2,"publicationDate":"2025-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143918245","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}
Ben Kay , Graham Heinson , Goran Boren , Ying Liu , Kate Brand , Stephan Thiel , Helen Williams
{"title":"Lithospheric architecture of the Curnamona Province, Australia","authors":"Ben Kay , Graham Heinson , Goran Boren , Ying Liu , Kate Brand , Stephan Thiel , Helen Williams","doi":"10.1016/j.gr.2025.04.001","DOIUrl":"10.1016/j.gr.2025.04.001","url":null,"abstract":"<div><div>The Curnamona Province in southern Australia is a 90,000 km<sup>2</sup> Paleoproterozoic to Mesoproterozoic craton that rifted from the Gawler Craton in the Neoproterozoic and is now separated by the Adelaide Rift Complex sediments in the Flinders Ranges. Magnetotelluric (MT) surveys have been conducted across the Curnamona Province to provide insights on lithospheric architecture. A long-period (10–10,000 s) MT inversion of 136 AusLAMP and legacy long-period MT sites, 134 broadband MT, and 31 geomagnetic depth sounding (GDS) sites over an area 500 km by 500 km is used to create a lithospheric-scale framework for the province. In addition, a crustal-scale broadband (0.01 to 1000 s) MT inversion of 134 sites with closer spacing yields higher fidelity of crustal heterogeneity. The long-period Curnamona Province model is combined with other regional models across southern Australia, encompassing the Archean-Mesoproterozoic Gawler Craton in the west to the Phanerozoic Delamerian and Lachlan Orogens in the east. In this wider context, the Curnamona Province is shown to exhibit four distinct regions of low resistivity. (a) In the top 5 km, resistivity is most strongly influenced by the porosity of sedimentary cover. (b) The upper crust to a depth of 20 km has low resistivity < 1 Ω.m along the eastern margin of the province possibly from organic carbon deposited in the Paleoproterozoic. (c) The lower crust to the Moho (∼40 km) has low resistivity (<100 Ω.m) and is coincident with the extent of the Adelaide Rift Complex suggesting it may have resulted during a period of Neoproterozoic rifting. (d) At sub-continental lithospheric depths of 150–250 km, high electrical conductance in the central to northern part of the Curnamona Province is attributed to metasomatism at the base of the lithosphere in the Mesoproterozoic.</div></div>","PeriodicalId":12761,"journal":{"name":"Gondwana Research","volume":"144 ","pages":"Pages 49-63"},"PeriodicalIF":7.2,"publicationDate":"2025-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143918246","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}
Bo Liu, Haijia Wen, Mingrui Di, Mingyong Liao, Junhao Huang, Long Qian, Yongbo Chu
{"title":"Robustness study of seismic hazard assessment models based on multi-source data","authors":"Bo Liu, Haijia Wen, Mingrui Di, Mingyong Liao, Junhao Huang, Long Qian, Yongbo Chu","doi":"10.1016/j.gr.2025.04.003","DOIUrl":"10.1016/j.gr.2025.04.003","url":null,"abstract":"<div><div>Traditional seismic hazard assessment models mainly focus on seismic conditions, often neglecting topography, geology, and environmental factors. The limited robustness and “black-box” nature of single machine learning algorithms pose challenges in reliably assessing seismic hazard. This study leverages multi-source data and five hyperparameter optimization (HPO) algorithms to enhance the robustness of seismic hazard mapping (SHM) models in Jiuzhaigou County, China, by fine-tuning the traditional random forest (RF) model. The SHapley Additive exPlanations (SHAP) method was used to reveal decision-making mechanisms in seismic hazard models, supported by local interpretations and on-site investigations. This study considered 23 factors, including seismic factors, terrain morphology, geological conditions, and environmental conditions. We evaluated the performance of each hybrid model using metrics such as Coefficient of Determination (R<sup>2</sup> score) and various validation methods. The results show that the Random Forest-Tree-structured Parzen Estimators (RF-TPE) model achieves the highest R<sup>2</sup> score (0.9877). The RF-TPE outperforms other models in terms of robustness, making the SHM constructed with this model more reliable. The study also found that, in modeling SHM in the region, factors such as Peak Ground Velocity (PGV), hypocentral distance, Peak Spectral Acceleration (PSA), distance to fault, slope, and elevation are the most influential.</div></div>","PeriodicalId":12761,"journal":{"name":"Gondwana Research","volume":"144 ","pages":"Pages 87-108"},"PeriodicalIF":7.2,"publicationDate":"2025-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143932244","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}
Haoru Wei , Yougui Song , Yanping Wang , Mingyu Zhang , Hamid Gholami , Shugang Kang , Yue Li , Shukhrat Shukurov , Nosir Shukurov , Rustam Orozbaev
{"title":"Variations in Central Asian dust activity and potential driving mechanisms over the past 80 kyr","authors":"Haoru Wei , Yougui Song , Yanping Wang , Mingyu Zhang , Hamid Gholami , Shugang Kang , Yue Li , Shukhrat Shukurov , Nosir Shukurov , Rustam Orozbaev","doi":"10.1016/j.gr.2025.03.020","DOIUrl":"10.1016/j.gr.2025.03.020","url":null,"abstract":"<div><div>Loess plays a vital role in unraveling the dynamics of dust activity and its implications for climate change. In recent years, the study of dust activity in Central Asian loess has gradually enriched. However, there is a notable gap in comprehensive studies addressing on the long-term changes in dust accumulation rates (DAR) and mean grain size (MGS) in Central Asian loess, and the primary factors influencing aeolian loess deposition remain a subject of debate. In this study, we address this gap by synthesizing DARs data from 42 loess profiles in Central Asia with radiometric dating including OSL and radiocarbon, normalizing and overlapping the DAR and MGS data using the Z-score method. The results show that the DAR of the loess in Central Asian subregions I and II increased from MIS5 to MIS3, reached the highest in MIS3, decreased from MIS3 to mid-Holocene, and increased after mid-Holocene. The variation of DAR in subregion III has been more consistent with the other two subregions since Holocene. The DAR and MGS trends in Central Asian loess are in sync, effectively indicating the Central Asian dust activity since 80 thousand years (kyr) ago. The dust activity in Central Asia is mainly dominated by intense of westerlies which is controlled by precession and obliquity leading to changes in water vapor and wind power. Siberian High and local glacier activities also affect Central Asian dust activity. This study reveals dust activity and driving mechanisms in Central Asia over the past 80 kyr.</div></div>","PeriodicalId":12761,"journal":{"name":"Gondwana Research","volume":"144 ","pages":"Pages 77-86"},"PeriodicalIF":7.2,"publicationDate":"2025-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143921181","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}
Micaela Chaumeil Rodríguez , Juan Pablo Pérez Panera , Jorge E. Spangenberg , Alejandro R. Gómez Dacal , Guillaume Suan , Alberto C. Garrido , Emanuela Mattioli
{"title":"Early and Middle Jurassic environmental perturbations in south-western Gondwana: An example from the Neuquén Basin, Argentina","authors":"Micaela Chaumeil Rodríguez , Juan Pablo Pérez Panera , Jorge E. Spangenberg , Alejandro R. Gómez Dacal , Guillaume Suan , Alberto C. Garrido , Emanuela Mattioli","doi":"10.1016/j.gr.2025.03.019","DOIUrl":"10.1016/j.gr.2025.03.019","url":null,"abstract":"<div><div>The Sierra Chacai Co and Los Molles formations in the Neuquén Basin, Argentina, are expressions of the first widespread marine transgression from the Pacific Ocean occurring in the Early to Middle Jurassic Period and provide a unique sedimentary record. Because of the presence of continuous and well-exposed outcrops, the basin has the potential to shed light on the global extent of the carbon isotope events (CIEs), as well as to test the large-scale occurrence of other environmental events so far only documented in western Tethys. The Neuquén Basin in Argentina is one of the rare places in south-western Gondwana where strata deposited during the Toarcian Oceanic Anoxic Event (T-OAE) have been documented. Here, we present the results of a multidisciplinary study integrating geochemical (δ<sup>13</sup>C<sub>org</sub>, TOC, major and trace elements) and calcareous nannofossil data from a novel section in the southern part of Neuquén Basin. The new data set allowed the identification of the T-OAE time-equivalent besides two additional significant negative carbon isotope excursions distributed across the middle Toarcian and Toarcian-Aalenian intervals. Six calcareous nannofossil zones and several subzones were recognised, covering the Pliensbachian-Aalenian interval, allowing to place the δ<sup>13</sup>C excursions within a precise stratigraphic framework and correlate them to other records worldwide. The new geochemical and calcareous nannofossils data provide the most continuous and time-extended record for the Neuquén Basin and the SW Gondwana. Additionally, these results support the global extent of CIE of the T-OAE and the presence of other Early to Middle Jurassic isotopic excursions. These findings illustrate the utility of combining organic carbon stable isotopes and calcareous nannofossils for global age correlations and palaeoenvironmental reconstructions in the evolution of the marine community during major, long-term environmental changes.</div></div>","PeriodicalId":12761,"journal":{"name":"Gondwana Research","volume":"144 ","pages":"Pages 1-19"},"PeriodicalIF":7.2,"publicationDate":"2025-05-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143912801","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}