Katarína Šarinová, S. Rybár, F. Jourdan, C. Mayers, A. Frew, M. Kováčová, Petronela Nováková, Barbara Lichtman, M. Kováč
{"title":"40Ar/39Ar geochronology of Burdigalian paleobotanical localities in the central Paratethys (south Slovakia)","authors":"Katarína Šarinová, S. Rybár, F. Jourdan, C. Mayers, A. Frew, M. Kováčová, Petronela Nováková, Barbara Lichtman, M. Kováč","doi":"10.1344/GEOLOGICAACTA2021.19.5","DOIUrl":null,"url":null,"abstract":"The Lipovany and Mucin paleobotanical localities contain important floral associations within the tuff horizons, which were used for determination of subtropical to tropical climatic conditions during the Early Miocene. Based on the combination of results from plagioclase and biotite 40 Ar/ 39 Ar dating, the age of the tuff deposition is around 17.3Ma. For the Lipovany locality, single-grain 40 Ar/ 39 Ar convergent ages of 17.49±0.54Ma and 17.28±0.06Ma, for plagioclase and biotite were obtained, respectively. The Mucin locality only provide an imprecise convergent age of 16.5±1.4Ma due to the small size of the analyzed plagioclase crystals. The results thus allowed to include the fossil subtropical flora of the studied localities in the late Ottnangian regional stage (upper part of the Burdigalian). Additionally, these age data indicate that deposition of the overlaying Salgotarjan Formation starts much later than originally thought (during Ottnangian-Karpatian boundary).","PeriodicalId":55107,"journal":{"name":"Geologica Acta","volume":"19 1","pages":"1-19"},"PeriodicalIF":1.3000,"publicationDate":"2021-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"4","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Geologica Acta","FirstCategoryId":"89","ListUrlMain":"https://doi.org/10.1344/GEOLOGICAACTA2021.19.5","RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"GEOLOGY","Score":null,"Total":0}
引用次数: 4
Abstract
The Lipovany and Mucin paleobotanical localities contain important floral associations within the tuff horizons, which were used for determination of subtropical to tropical climatic conditions during the Early Miocene. Based on the combination of results from plagioclase and biotite 40 Ar/ 39 Ar dating, the age of the tuff deposition is around 17.3Ma. For the Lipovany locality, single-grain 40 Ar/ 39 Ar convergent ages of 17.49±0.54Ma and 17.28±0.06Ma, for plagioclase and biotite were obtained, respectively. The Mucin locality only provide an imprecise convergent age of 16.5±1.4Ma due to the small size of the analyzed plagioclase crystals. The results thus allowed to include the fossil subtropical flora of the studied localities in the late Ottnangian regional stage (upper part of the Burdigalian). Additionally, these age data indicate that deposition of the overlaying Salgotarjan Formation starts much later than originally thought (during Ottnangian-Karpatian boundary).
期刊介绍：
- Relevant conceptual developments in any area of the Earth Sciences.
- Studies presenting regional synthesis.
- Thematic issues or monographic volumes presenting the results from one or more research groups.
- Short papers reflecting interesting results or works in progress.
- Contributions and results from Research Projects, Workshops, Symposiums, Congresses and any relevant scientific activity related to Earth Sciences.
- Geologica Acta aims to stimulate rapid diffusion of results and efficient exchange of ideas between the widespread communities of Earth Science researchers (with special emphasis on Latinamerica, the Caribbean, Europe, the Mediterranean
京公网安备 11010802042870号
京ICP备2023020795号-1
分享
求助内容：
应助结果提醒方式：
扫码关注我们
