{"title":"松辽盆地下白垩统沙河子组碎屑锆石物源:LA-ICP-MS U-Pb年代学的启示","authors":"Xin Gao , Tiegang Li","doi":"10.1016/j.cretres.2025.106200","DOIUrl":null,"url":null,"abstract":"<div><div>The Songliao Basin, located in northeastern China, is one of the largest continental rift basins in East Asia. It preserves a nearly complete record of Cretaceous continental sedimentary records, providing insights into paleoclimatic, geodynamical, and tectonic processes in terrestrial systems during the Cretaceous Period. The Lower Cretaceous Shahezi Formation, deposited during the syn-rift stage of the Songliao Basin, consists of thick sequences of terrestrial clastic sediments. However, the provenance of the sediments and tectonic background during the deposition of the Shahezi Formation remain poorly understood. This study utilises U–Pb geochronology of detrital zircons from six sandstone samples collected from the Shahezi Formation as part of the International Continental Drilling Project SK-2 borehole in the Songliao Basin. The zircon age distributions reveal three dominant age clusters: ∼128–113 Ma, ∼184–159 Ma, and ∼247–216 Ma, indicating that the primary sediment source remained stable throughout deposition. These results suggest that the northern Great Xing’an Range was a significant sediment source, contributing to the Shahezi Formation at approximately 118–113 Ma.</div></div>","PeriodicalId":55207,"journal":{"name":"Cretaceous Research","volume":"176 ","pages":"Article 106200"},"PeriodicalIF":1.7000,"publicationDate":"2025-07-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Detrital zircon provenance of the Lower Cretaceous Shahezi Formation in the Songliao Basin, Northeast China: Insights from LA-ICP-MS U-Pb geochronology\",\"authors\":\"Xin Gao , Tiegang Li\",\"doi\":\"10.1016/j.cretres.2025.106200\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><div>The Songliao Basin, located in northeastern China, is one of the largest continental rift basins in East Asia. It preserves a nearly complete record of Cretaceous continental sedimentary records, providing insights into paleoclimatic, geodynamical, and tectonic processes in terrestrial systems during the Cretaceous Period. The Lower Cretaceous Shahezi Formation, deposited during the syn-rift stage of the Songliao Basin, consists of thick sequences of terrestrial clastic sediments. However, the provenance of the sediments and tectonic background during the deposition of the Shahezi Formation remain poorly understood. This study utilises U–Pb geochronology of detrital zircons from six sandstone samples collected from the Shahezi Formation as part of the International Continental Drilling Project SK-2 borehole in the Songliao Basin. The zircon age distributions reveal three dominant age clusters: ∼128–113 Ma, ∼184–159 Ma, and ∼247–216 Ma, indicating that the primary sediment source remained stable throughout deposition. These results suggest that the northern Great Xing’an Range was a significant sediment source, contributing to the Shahezi Formation at approximately 118–113 Ma.</div></div>\",\"PeriodicalId\":55207,\"journal\":{\"name\":\"Cretaceous Research\",\"volume\":\"176 \",\"pages\":\"Article 106200\"},\"PeriodicalIF\":1.7000,\"publicationDate\":\"2025-07-04\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Cretaceous Research\",\"FirstCategoryId\":\"89\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0195667125001235\",\"RegionNum\":3,\"RegionCategory\":\"地球科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"GEOLOGY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Cretaceous Research","FirstCategoryId":"89","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0195667125001235","RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"GEOLOGY","Score":null,"Total":0}
Detrital zircon provenance of the Lower Cretaceous Shahezi Formation in the Songliao Basin, Northeast China: Insights from LA-ICP-MS U-Pb geochronology
The Songliao Basin, located in northeastern China, is one of the largest continental rift basins in East Asia. It preserves a nearly complete record of Cretaceous continental sedimentary records, providing insights into paleoclimatic, geodynamical, and tectonic processes in terrestrial systems during the Cretaceous Period. The Lower Cretaceous Shahezi Formation, deposited during the syn-rift stage of the Songliao Basin, consists of thick sequences of terrestrial clastic sediments. However, the provenance of the sediments and tectonic background during the deposition of the Shahezi Formation remain poorly understood. This study utilises U–Pb geochronology of detrital zircons from six sandstone samples collected from the Shahezi Formation as part of the International Continental Drilling Project SK-2 borehole in the Songliao Basin. The zircon age distributions reveal three dominant age clusters: ∼128–113 Ma, ∼184–159 Ma, and ∼247–216 Ma, indicating that the primary sediment source remained stable throughout deposition. These results suggest that the northern Great Xing’an Range was a significant sediment source, contributing to the Shahezi Formation at approximately 118–113 Ma.
期刊介绍:
Cretaceous Research provides a forum for the rapid publication of research on all aspects of the Cretaceous Period, including its boundaries with the Jurassic and Palaeogene. Authoritative papers reporting detailed investigations of Cretaceous stratigraphy and palaeontology, studies of regional geology, and reviews of recently published books are complemented by short communications of significant new findings.
Papers submitted to Cretaceous Research should place the research in a broad context, with emphasis placed towards our better understanding of the Cretaceous, that are therefore of interest to the diverse, international readership of the journal. Full length papers that focus solely on a local theme or area will not be accepted for publication; authors of short communications are encouraged to discuss how their findings are of relevance to the Cretaceous on a broad scale.
Research Areas include:
• Regional geology
• Stratigraphy and palaeontology
• Palaeobiology
• Palaeobiogeography
• Palaeoceanography
• Palaeoclimatology
• Evolutionary Palaeoecology
• Geochronology
• Global events.