Geological JournalPub Date : 2026-03-16Epub Date: 2025-06-16DOI: 10.1002/gj.70005
Guanghao Peng, Yuyue Han, Bo Ran, Shugen Liu, Tong Sun, Zhiwu Li
{"title":"Exploring the Driving Mechanisms Behind Variations in 87Sr/86Sr Ratios in Neoproterozoic–Cambrian Oceans","authors":"Guanghao Peng, Yuyue Han, Bo Ran, Shugen Liu, Tong Sun, Zhiwu Li","doi":"10.1002/gj.70005","DOIUrl":"https://doi.org/10.1002/gj.70005","url":null,"abstract":"<div>\u0000 \u0000 <p>The long-term evolution of seawater strontium isotope ratios (<sup>87</sup>Sr/<sup>86</sup>Sr) serves as a critical archive for reconstructing paleogeographic configurations, climatic shifts, and biological evolution. However, the driving mechanisms behind <sup>87</sup>Sr/<sup>86</sup>Sr variations during the Neoproterozoic–Cambrian transition (700–500 Ma) remain debated, owing to the interplay of multiple geological processes including supercontinental fragmentation, amalgamation, orogenic activity, and volcanic events. This study analyses 486 <sup>87</sup>Sr/<sup>86</sup>Sr measurements from global marine carbonates spanning 700–500 Ma, integrated with temporal records from 89 orogenic belts worldwide. The refined seawater <sup>87</sup>Sr/<sup>86</sup>Sr curve reveals a three-phase ascending trend: 700–635 Ma: The breakup of Rodinia and the simultaneous assembly of Gondwana created a low marine <sup>87</sup>Sr/<sup>86</sup>Sr ratio, yet it still exhibited an upward trend. 635–540 Ma: Progressive ratio increases align with the Gondwana supercontinent assembly, driven by intensified orogenic uplift that exposed radiogenic continental crust to weathering. 540–500 Ma: Accelerated ratio elevation correlates with final Gondwana block amalgamation, volcanic degassing, and greenhouse-induced climatic conditions that amplified continental silicate weathering fluxes. This phased model highlights pre-Cambrian orogenesis as a pivotal precursor to the Cambrian Explosion. The convergence of Gondwana continental blocks, coupled with Cambrian greenhouse climates, dramatically enhanced terrestrial weathering efficiency. The resultant surge in nutrient delivery (e.g., phosphorus) to oceans likely created biogeochemical thresholds critical for triggering the Cambrian biospheric radiation. These findings establish tectonically mediated weathering-climate feedbacks as central regulators of Earth's biogeochemical transitions during this pivotal interval.</p>\u0000 </div>","PeriodicalId":12784,"journal":{"name":"Geological Journal","volume":"61 3","pages":"710-724"},"PeriodicalIF":2.2,"publicationDate":"2026-03-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147566186","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Geological JournalPub Date : 2026-03-16Epub Date: 2026-02-24DOI: 10.1002/gj.70230
Mohd Younus Bhat, Nurul Absar
{"title":"Comment on ‘On the Transition From Remnant Tethys Sea to Foreland Basin During the Late Paleogene in the Western Himalayas, Pakistan’ by Ali et al. (2025)","authors":"Mohd Younus Bhat, Nurul Absar","doi":"10.1002/gj.70230","DOIUrl":"https://doi.org/10.1002/gj.70230","url":null,"abstract":"<div>\u0000 \u0000 <p>Ali et al. (2025) present an integrated sedimentological and biostratigraphic analysis of late Paleogene sediments from the Sulaiman fold-thrust belt (SFTB), Pakistan, documenting the transition from remnant Tethys Sea to the Himalayan foreland basin. While this study provides valuable field observations and a comprehensive stratigraphic framework, we identify several significant technical issues that affect the interpretation of depositional environments, biostratigraphic age assignments, and the relative roles of tectonic versus eustatic controls on the retreat of the Tethys Sea. These issues warrant clarification to ensure accurate paleogeographic and tectonic reconstructions for this critical region.</p>\u0000 </div>","PeriodicalId":12784,"journal":{"name":"Geological Journal","volume":"61 3","pages":"848-851"},"PeriodicalIF":2.2,"publicationDate":"2026-03-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147568279","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Yasir Ahmed Solangi, Cosimo Magazzino, Dhafer Almakhles, Nayyar Hussain Mirjat, Sharafat Ali
{"title":"Special Issue “Energy, Resources and Climate Change”—An Introduction","authors":"Yasir Ahmed Solangi, Cosimo Magazzino, Dhafer Almakhles, Nayyar Hussain Mirjat, Sharafat Ali","doi":"10.1002/gj.70097","DOIUrl":"https://doi.org/10.1002/gj.70097","url":null,"abstract":"<div>\u0000 \u0000 <p>The twenty-first century's energy–resources–climate nexus is reshaping how societies produce power, manage natural assets, and respond to escalating environmental risks. Meeting Paris Agreement and SDG ambitions demands innovations that are technical (from digitalization to novel energy systems), institutional (finance and governance), and methodological (advanced decision-support and integrated assessments). This special issue gathers 16 contributions spanning these fronts, empirically grounded studies, and new frameworks that together illuminate practical pathways toward lower emissions, fairer energy access, and more resilient resource systems. The 16 papers are grouped under the following five headings: (1) renewable energy, resource efficiency, and climate action; (2) digitalization, finance, and innovation; (3) resource characterisation and environmental management; (4) Geohazards, drought, and climate resilience; and (5) novel energy technologies and climate dynamics.</p>\u0000 </div>","PeriodicalId":12784,"journal":{"name":"Geological Journal","volume":"60 11","pages":"2595-2597"},"PeriodicalIF":2.2,"publicationDate":"2025-10-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145555716","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Prem Kumar, Shoaib Ahmed Khatri, Syed Feroz Shah, Mohammad Aslam Uqaili, Nayyar Hussain Mirjat, Laveet Kumar
{"title":"Assessment of Drought Projections Using the Integrated Fuzzy Analytical Hierarchy Process","authors":"Prem Kumar, Shoaib Ahmed Khatri, Syed Feroz Shah, Mohammad Aslam Uqaili, Nayyar Hussain Mirjat, Laveet Kumar","doi":"10.1002/gj.70041","DOIUrl":"https://doi.org/10.1002/gj.70041","url":null,"abstract":"<div>\u0000 \u0000 <p>Effective mitigation planning has become essential considering the complexity and ambiguity of the drought. The Fuzzy analytical hierarchy process (Fuzzy-AHP) and a comparison matrix method are the key elements of this research's framework for planning drought mitigation for the Tharparkar desert region in Pakistan. Fuzzy-AHP, an efficient decision-making tool, offers systematic evaluation based on survey questionnaire criteria. It was created through a literature review and has received feedback from 40 various stakeholders. The identification of the criteria, the fuzzy-AHP model, consistency analysis, weight aggregation, assessment of the alternatives, ranking, and selection are the crucial steps in the technique suggested by this study. This approach, which offers a reliable and flexible framework for planning drought mitigation, incorporates the Fuzzy-AHP model and a comparison matrix. As it can handle confusing and subjective inputs, decision-makers can use it to identify drought situations, evaluate them, and select the best drought mitigation strategies. This research serves to improve the efficacy of drought mitigation planning processes across a range of sectors by offering a thorough and flexible decision-support tool.</p>\u0000 </div>","PeriodicalId":12784,"journal":{"name":"Geological Journal","volume":"60 11","pages":"2890-2909"},"PeriodicalIF":2.2,"publicationDate":"2025-07-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145555669","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Tulia Gattone, Alberto Costantiello, Angelo Leogrande, Angelo Quarto
{"title":"Modelling CO\u0000 2 Emissions Through Econometric and Machine Learning Approaches: The Role of Renewable Energy and Resource Use in Climate Action","authors":"Tulia Gattone, Alberto Costantiello, Angelo Leogrande, Angelo Quarto","doi":"10.1002/gj.70038","DOIUrl":"https://doi.org/10.1002/gj.70038","url":null,"abstract":"<div>\u0000 \u0000 <p>This research delves into the complex relationships among carbon dioxide (CO<sub>2</sub>) emissions, resource use, and energy consumption, showing how renewable energy adoption and reliance on fossil fuels shape greenhouse gas emissions. Leveraging panel data from 120 countries over a 10-year span, the analysis combines econometric approaches, including Weighted Least Squares (WLS), Generalised Linear Models (GLM) and Generalised Additive Models (GAM), with machine learning techniques such as Multivariate Adaptive Regression Splines (MARS) to capture nonlinear dynamics. Robustness checks are conducted using bagging, boosting, and Support Vector Machines (SVM) algorithms. Our analysis reveals strong associations between CO<sub>2</sub> emissions and key factors such as fossil fuel energy consumption, methane emissions, and renewable energy use. These results underscore the critical need for a global shift toward renewable energy systems, enhanced resource management, and well-targeted policy interventions. By employing cutting-edge methodologies, this study suggests harmonising economic growth with sustainability objectives and advancing climate change mitigation efforts.</p>\u0000 </div>","PeriodicalId":12784,"journal":{"name":"Geological Journal","volume":"60 11","pages":"2867-2889"},"PeriodicalIF":2.2,"publicationDate":"2025-07-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145555668","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}