{"title":"爱尔兰西部志留纪(landovery) Eoplectodonta壳层:机会主义、风暴和沉积速率在其形成中的作用","authors":"D. Harper, Eamon Doyle","doi":"10.3318/IJES.2003.21.1.105","DOIUrl":null,"url":null,"abstract":"Abstract:The ambitopic brachiopod Eoplectodonta is common in many upper Llandovery assemblages from deep-water settings, but this small plectambonitoid is not a noted opportunist. At least one level within the Telychian Kilbride Formation of north Connemara, western Ireland, contains unusual shelly associations overwhelmingly dominated by Eoplectodonta penkillensis (Reed). An opportunist model is developed for this assemblage based on the availability of vacant soft substrates periodically created after intermittent storm activity on the deep shelf. In addition, rapid sediment accumulation during transgression may have been an important contributing factor in this high-stress environment.","PeriodicalId":35911,"journal":{"name":"Irish Journal of Earth Sciences","volume":"21 1","pages":"105 - 114"},"PeriodicalIF":0.0000,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"3","resultStr":"{\"title\":\"A Silurian (Llandovery) Eoplectodonta Shell Bed in Western Ireland: The Role of Opportunism, Storms and Sedimentation Rates in Its Formation\",\"authors\":\"D. Harper, Eamon Doyle\",\"doi\":\"10.3318/IJES.2003.21.1.105\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Abstract:The ambitopic brachiopod Eoplectodonta is common in many upper Llandovery assemblages from deep-water settings, but this small plectambonitoid is not a noted opportunist. At least one level within the Telychian Kilbride Formation of north Connemara, western Ireland, contains unusual shelly associations overwhelmingly dominated by Eoplectodonta penkillensis (Reed). An opportunist model is developed for this assemblage based on the availability of vacant soft substrates periodically created after intermittent storm activity on the deep shelf. In addition, rapid sediment accumulation during transgression may have been an important contributing factor in this high-stress environment.\",\"PeriodicalId\":35911,\"journal\":{\"name\":\"Irish Journal of Earth Sciences\",\"volume\":\"21 1\",\"pages\":\"105 - 114\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2022-01-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"3\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Irish Journal of Earth Sciences\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.3318/IJES.2003.21.1.105\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q4\",\"JCRName\":\"Earth and Planetary Sciences\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Irish Journal of Earth Sciences","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.3318/IJES.2003.21.1.105","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"Earth and Planetary Sciences","Score":null,"Total":0}
A Silurian (Llandovery) Eoplectodonta Shell Bed in Western Ireland: The Role of Opportunism, Storms and Sedimentation Rates in Its Formation
Abstract:The ambitopic brachiopod Eoplectodonta is common in many upper Llandovery assemblages from deep-water settings, but this small plectambonitoid is not a noted opportunist. At least one level within the Telychian Kilbride Formation of north Connemara, western Ireland, contains unusual shelly associations overwhelmingly dominated by Eoplectodonta penkillensis (Reed). An opportunist model is developed for this assemblage based on the availability of vacant soft substrates periodically created after intermittent storm activity on the deep shelf. In addition, rapid sediment accumulation during transgression may have been an important contributing factor in this high-stress environment.
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