DOI: 10.1016/j.palaeo.2013.03.010
论文题名: A new Lower Cretaceous hydrocarbon seep locality from the Czech Carpathians and its fauna
作者: Kaim A. ; Skupien P. ; Jenkins R.G.
刊名: Palaeogeography, Palaeoclimatology, Palaeoecology
ISSN: 0031-0182
出版年: 2013
卷: 390 起始页码: 42
结束页码: 51
语种: 英语
英文关键词: Chemosynthesis-based community
; Cretaceous
; Czech Republic
; Hokkaidoconchidae
; Lucinidae
; Methane-seep
; Teschenite
英文摘要: A new Lower Cretaceous hydrocarbon seep locality at Baška in the Czech Carpathians is described. The seep carbonate and associated mollusk fauna have been encountered in deep-water claystones and siltstones of the Upper Barremian upper part of the Hradiště Formation associated with pillow lavas of so-called teschenite association. The investigated carbonate displays petrographic characters typical of seep sediments (clotted micrite, isopachous rim cements and layered pyrite aggregations). The carbon isotopic composition (- 20.0 to - 23.5‰ vs. V-PDB) most likely indicates anaerobic oxidation of thermogenic methane. The fossils recovered from this locality are rather poorly preserved but hokkaidoconchid gastropods and lucinid bivalves in association with trochid and zygopleurid gastropods are identified. This finding confirms the existence of seep faunas in the Western Carpathians, which was anticipated based on the presence of seep mollusks and brachiopods in old monographs that cover Lower Cretaceous fossils of this region. The fossils illustrated in the monograph of Ascher (1906) are here briefly re-evaluated and possible seep members are indicated. © 2013 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/69592
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作者单位: Instytut Paleobiologii PAN, ul. Twarda 51/55, 00-818 Warszawa, Poland; VŠB-Technical University of Ostrava, 17. listopadu 15/2172, 708 33 Poruba, Ostrava, Czech Republic; College of Science and Engineering, Kanazawa University, Kakuma machi, Kanazawa City, Ishikawa Prefecture 920-1192, Japan
Recommended Citation:
Kaim A.,Skupien P.,Jenkins R.G.. A new Lower Cretaceous hydrocarbon seep locality from the Czech Carpathians and its fauna[J]. Palaeogeography, Palaeoclimatology, Palaeoecology,2013-01-01,390