{"title":"英国(约克郡-多塞特)牛津(上侏罗统)层序地层学综述及与北海盆地的比较","authors":"John K. Wright","doi":"10.1016/j.pgeola.2025.101125","DOIUrl":null,"url":null,"abstract":"<div><div>A critical investigation is made of the unconformities reportedly present in Oxford Clay Formation and Corallian Group (Jurassic, Oxfordian) strata in central and southern England. A revised cross-section through strata belonging to the coeval Coralline Oolite Group and Upper Calcareous Grit and Ampthill Clay formations of the Tabular Hills, North Yorkshire is used to show the lateral extent of unconformities within these strata. There is definite correlation of only two of these unconformities present in Yorkshire with similar erosive episodes in the equivalent strata in southern England. The extent to which the sequences of strata delimited by these unconformities can be correlated with sequences defined in the North Sea Basin is discussed. The tectonic nature of the unconformities is evident, as there was not a simple drop in relative sea-level causing erosion. Erosion occurred down to deeper levels in certain areas, this being caused by differential uplift. The reasons for this phenomenon are still to be determined.</div></div>","PeriodicalId":49672,"journal":{"name":"Proceedings of the Geologists Association","volume":"136 5","pages":"Article 101125"},"PeriodicalIF":1.3000,"publicationDate":"2025-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Review of Oxfordian (Upper Jurassic) sequence stratigraphy of England (Yorkshire to Dorset) and a comparison with the North Sea Basin\",\"authors\":\"John K. Wright\",\"doi\":\"10.1016/j.pgeola.2025.101125\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><div>A critical investigation is made of the unconformities reportedly present in Oxford Clay Formation and Corallian Group (Jurassic, Oxfordian) strata in central and southern England. A revised cross-section through strata belonging to the coeval Coralline Oolite Group and Upper Calcareous Grit and Ampthill Clay formations of the Tabular Hills, North Yorkshire is used to show the lateral extent of unconformities within these strata. There is definite correlation of only two of these unconformities present in Yorkshire with similar erosive episodes in the equivalent strata in southern England. The extent to which the sequences of strata delimited by these unconformities can be correlated with sequences defined in the North Sea Basin is discussed. The tectonic nature of the unconformities is evident, as there was not a simple drop in relative sea-level causing erosion. Erosion occurred down to deeper levels in certain areas, this being caused by differential uplift. The reasons for this phenomenon are still to be determined.</div></div>\",\"PeriodicalId\":49672,\"journal\":{\"name\":\"Proceedings of the Geologists Association\",\"volume\":\"136 5\",\"pages\":\"Article 101125\"},\"PeriodicalIF\":1.3000,\"publicationDate\":\"2025-06-02\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Proceedings of the Geologists Association\",\"FirstCategoryId\":\"89\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0016787825000343\",\"RegionNum\":4,\"RegionCategory\":\"地球科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"Earth and Planetary Sciences\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Proceedings of the Geologists Association","FirstCategoryId":"89","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0016787825000343","RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"Earth and Planetary Sciences","Score":null,"Total":0}
Review of Oxfordian (Upper Jurassic) sequence stratigraphy of England (Yorkshire to Dorset) and a comparison with the North Sea Basin
A critical investigation is made of the unconformities reportedly present in Oxford Clay Formation and Corallian Group (Jurassic, Oxfordian) strata in central and southern England. A revised cross-section through strata belonging to the coeval Coralline Oolite Group and Upper Calcareous Grit and Ampthill Clay formations of the Tabular Hills, North Yorkshire is used to show the lateral extent of unconformities within these strata. There is definite correlation of only two of these unconformities present in Yorkshire with similar erosive episodes in the equivalent strata in southern England. The extent to which the sequences of strata delimited by these unconformities can be correlated with sequences defined in the North Sea Basin is discussed. The tectonic nature of the unconformities is evident, as there was not a simple drop in relative sea-level causing erosion. Erosion occurred down to deeper levels in certain areas, this being caused by differential uplift. The reasons for this phenomenon are still to be determined.
期刊介绍:
The Proceedings of the Geologists'' Association is an international geoscience journal that was founded in 1859 and publishes research and review papers on all aspects of Earth Science. In particular, papers will focus on the geology of northwestern Europe and the Mediterranean, including both the onshore and offshore record. Following a long tradition, the PGA will focus on: i) a range of article types (see below) on topics of wide relevance to Earth Sciences ii) papers on aspects of Earth Science that have societal relevance including geoconservation and Earth management, iii) papers on palaeoenvironments and palaeontology of the Mesozoic and Cenozoic, iv) papers on aspects of Quaternary geology and climate change, and v) papers on the history of geology with particular reference to individuals that have shaped the subject. These topics will also steer the content of the themes of the Special Issues that are published in the PGA.