https://scholars.lib.ntu.edu.tw/handle/123456789/606206
標題: | The multidisciplinary approaches on facies developments and depositional systems of the bah?ecik travertines, g?m??hane, ne-turkey | 作者: | Kandemir R Tagliasacchi E Kayseri ?zer M.S ?affak D K?ro?lu F Hu H.-M CHUAN-CHOU SHEN |
關鍵字: | Depositional system;G?m??hane;Middle pleistocene;Radiometric dating;Stable isotopes;Travertine;crystalline rock;depositional environment;facies analysis;ground penetrating radar;paleoclimate;paleoenvironment;Pleistocene;sedimentology;travertine;Gumushane;Turkey;Meleagris gallopavo | 公開日期: | 2021 | 卷: | 30 | 期: | 5 | 起(迄)頁: | 561-579 | 來源出版物: | Turkish Journal of Earth Sciences | 摘要: | The Bah?ecik travertines, located in G?m??hane (NE-Turkey) have been investigated for the first time using a multidisciplinary approach, which included sedimentological (lithofacies, depositional system), petrographic, radiometric230Th dating, geochemical analysis (stable isotopes), palynomorphs and geophysics (GPR). A carbonate build-up, 12 m thick, was formed with some interruptions, through the middle Pleistocene period. For this study, two travertine sections (F and D) were extensively used to figure out palaeoenvironmental and palaeoclimatic proxies. The main precipitation cycles, separated by palaeosol levels, have been described and interpreted from a sedimentological perspective. The carbonate deposits consist of shrubs, crystalline crust, reed, laminated (micritic), pisoids, oncoids, calcite thin rafts and coated gas bubbles, lithoclasts, and palaeosol levels. The sedimentological fieldwork and petrographic analysis show that the Bah?ecik travertines formed in depression depositional and slope depositional systems. Moreover, the first230Th ages, stable isotopic results and palynofloral data in this study, prove that the Bah?ecik travertines might have been affected by climatic and tectonic interruptions. According to dating results, the travertine occurrences began to precipitate during the 353 ka and continued into the 263 ka. Based on the palynological data, an abundance of herbaceous plants species was recorded in the warming period of climate. The thickness ranges from 2 to 12 m of the Bah?ecik travertines. This precise thickness and also the presence of two different travertine formations, separated by a palaeosol erosional surface, were recorded by the ground penetrating radar (GPR) geophysical method. ? T?B?TAK. |
URI: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-85116285488&doi=10.3906%2fyer-2104-20&partnerID=40&md5=59541d84feb2c400b54d15e75f5f67f5 https://scholars.lib.ntu.edu.tw/handle/123456789/606206 |
ISSN: | 13000985 | DOI: | 10.3906/yer-2104-20 |
顯示於: | 地質科學系 |
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