{"title":"PALEODICTYON ASSEMBLAGE FROM FRASIN, SUCEAVA COUNTY (EASTERN CARPATHIANS, ROMANIA)","authors":"Anca Seserman, S. Mare, S. Loghin","doi":"10.26471/cjees/2023/018/244","DOIUrl":null,"url":null,"abstract":"Hypichnia with Strobilorharphe, Megagrapton, Spirodesmos, Helminthopsis, Treptichnus, and the elite Paleodictyon, representative for „deep-sea farmers” (graphoglyptides) of the Paleodictyon ichnosubfacies, belonging to Nereites ichnofacies is described in Lower-Middle Eocene flysch deposits of Tarcău Nappe (in the north of Eastern Carpathians). The Paleodictyon is preserved as three superimposed networks, covering a half square meter of lower bounding surface of a Tc bed, indicating a quasi-nonerosive character of the turbidity current which exhumed the pre-depositional delicate farming traces. This paleoenvironment is supported by the agglutinated foraminifera, dominated by tubular forms (Bathysiphon sp., Psammosiphonella cylindrica, Nothia excelsa) collected from shale the above and below turbidite bed, accumulated in relative quiet intervals, depleted of nutrients and oxygen. Such conditions may exist in offshore, where organisms develop highly organized feeding strategies.","PeriodicalId":55272,"journal":{"name":"Carpathian Journal of Earth and Environmental Sciences","volume":" ","pages":""},"PeriodicalIF":0.9000,"publicationDate":"2023-01-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Carpathian Journal of Earth and Environmental Sciences","FirstCategoryId":"93","ListUrlMain":"https://doi.org/10.26471/cjees/2023/018/244","RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"ENVIRONMENTAL SCIENCES","Score":null,"Total":0}
引用次数: 0
Abstract
Hypichnia with Strobilorharphe, Megagrapton, Spirodesmos, Helminthopsis, Treptichnus, and the elite Paleodictyon, representative for „deep-sea farmers” (graphoglyptides) of the Paleodictyon ichnosubfacies, belonging to Nereites ichnofacies is described in Lower-Middle Eocene flysch deposits of Tarcău Nappe (in the north of Eastern Carpathians). The Paleodictyon is preserved as three superimposed networks, covering a half square meter of lower bounding surface of a Tc bed, indicating a quasi-nonerosive character of the turbidity current which exhumed the pre-depositional delicate farming traces. This paleoenvironment is supported by the agglutinated foraminifera, dominated by tubular forms (Bathysiphon sp., Psammosiphonella cylindrica, Nothia excelsa) collected from shale the above and below turbidite bed, accumulated in relative quiet intervals, depleted of nutrients and oxygen. Such conditions may exist in offshore, where organisms develop highly organized feeding strategies.
期刊介绍:
The publishing of CARPATHIAN JOURNAL of EARTH and ENVIRONMENTAL SCIENCES has started in 2006. The regularity of this magazine is biannual. The magazine will publish scientific works, in international purposes, in different areas of research, such as : geology, geography, environmental sciences, the environmental pollution and protection, environmental chemistry and physic, environmental biodegradation, climatic exchanges, fighting against natural disasters, protected areas, soil degradation, water quality, water supplies, sustainable development.