Petrogenesis and tectonic implications of the Xiachehe granite porphyries in the Wutai-Hengshan area (North China Craton): Constraints from geochemistry, zircon U-Pb geochronology and Hf isotopes

Petrogenesis and tectonic implications of the Xiachehe granite porphyries in the Wutai-Hengshan area (North China Craton): Constraints from geochemistry, zircon U-Pb geochronology and Hf isotopes | Research Square window.SnipcartSettings = { analytics: { enabled: false } }; (function() { var accessVector = localStorage.getItem('access_vector') || ''; window.dataLayer = window.dataLayer || []; if (accessVector) { window.dataLayer.push({ user: { profile: { profileInfo: { snid: accessVector } } } }); } })(); (function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src='https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);})(window,document,'script','dataLayer','GTM-K279D39R'); Browse Preprints In Review Journals COVID-19 Preprints AJE Video Bytes Research Tools Research Promotion AJE Professional Editing AJE Rubriq About Preprint Platform In Review Editorial Policies Our Team Advisory Board Help Center Sign In Submit a Preprint Cite Share Download PDF Research Article Petrogenesis and tectonic implications of the Xiachehe granite porphyries in the Wutai-Hengshan area (North China Craton): Constraints from geochemistry, zircon U-Pb geochronology and Hf isotopes Feng Ye, Guochen Dong, Jianxun Ren, Yanick Brice Lemdjou, Yanick Blaise Ketchaya, and 2 more This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-4011958/v1 This work is licensed under a CC BY 4.0 License Status: Posted Version 1 posted You are reading this latest preprint version Abstract The Wutai-Hengshan area located in the Trans-North China Orogen (TNCO) is a classic example of the geological evolution in the North China Craton (NCC) and carries varied Mesozoic magmatism associated with lithospheric destruction. In this paper, we provide zircon U-Pb geochronology, whole-rock chemistry, and zircon Lu-Hf isotopic data of the Xiachehe granite porphyries to discuss their petrogenesis and tectonic implications. According to the results of laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS), Xiachehe granite porphyries yield zircon U-Pb ages of 135.1 ± 0.8 Ma, representing age in the Early Cretaceous. The Xiachehe granite porphyries are high-K calc-alkaline and peraluminous. These rocks have REE and trace element patterns, characterized by enrichment in large-ion lithophile elements (LILE) and light rare-earth elements (LREE), and depletion in high-field-strength elements (HFSE), heavy rare-earth elements (HREE), with negative Eu anomalies. Therefore, They are classified as I-type granites with adakitic features. The Xiachehe granite porphyries have homogeneous zircon Hf isotopic compositions. Their zircons have negative ε Hf (t) values (-20.7 to -19.3) and two-stage Hf model ages of 2417–2501 Ma, indicating that the studied rocks were derived from partial melting of Neoarchean-Paleoproterozoic crustal materials with mantle-derived inputs. Therefore, it is suggested that the Xiachehe granite porphyries formed in a back-arc extensional setting likely associated with the ancient Pacific Plate subduction and retreat beneath the Eurasian continent. The TNCO was influenced by the subduction and retreat of the ancient Pacific Plate in the Early Cretaceous. Zircon U-Pb geochronology Geochemistry Hf isotopes Xiachehe granite porphyries Wutai-Hengshan area Full Text Additional Declarations No competing interests reported. Cite Share Download PDF Status: Posted Version 1 posted You are reading this latest preprint version Research Square lets you share your work early, gain feedback from the community, and start making changes to your manuscript prior to peer review in a journal. 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Also discoverable on Platform About Our Team In Review Editorial Policies Advisory Board Help Center Resources Author Services Accessibility API Access RSS feed Manage Cookie Preferences © Research Square 2026 | ISSN 2693-5015 (online) Privacy Policy Terms of Service Do Not Sell My Personal Information {"props":{"pageProps":{"initialData":{"identity":"rs-4011958","acceptedTermsAndConditions":true,"allowDirectSubmit":true,"archivedVersions":[],"articleType":"Research Article","associatedPublications":[],"authors":[{"id":276651852,"identity":"25a84dc8-0bcd-4d7c-bf7c-bce22a08ab95","order_by":0,"name":"Feng Ye","email":"","orcid":"","institution":"Shanxi Engineering Vocational College","correspondingAuthor":false,"prefix":"","firstName":"Feng","middleName":"","lastName":"Ye","suffix":""},{"id":276651853,"identity":"57c6a2d6-28c7-46c0-beb6-bdcac5f81e1b","order_by":1,"name":"Guochen 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In this paper, we provide zircon U-Pb geochronology, whole-rock chemistry, and zircon Lu-Hf isotopic data of the Xiachehe granite porphyries to discuss their petrogenesis and tectonic implications. According to the results of laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS), Xiachehe granite porphyries yield zircon U-Pb ages of 135.1\u0026thinsp;\u0026plusmn;\u0026thinsp;0.8 Ma, representing age in the Early Cretaceous. The Xiachehe granite porphyries are high-K calc-alkaline and peraluminous. These rocks have REE and trace element patterns, characterized by enrichment in large-ion lithophile elements (LILE) and light rare-earth elements (LREE), and depletion in high-field-strength elements (HFSE), heavy rare-earth elements (HREE), with negative Eu anomalies. Therefore, They are classified as I-type granites with adakitic features. The Xiachehe granite porphyries have homogeneous zircon Hf isotopic compositions. 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