globalchange  > 过去全球变化的重建
DOI: 10.1016/j.palaeo.2017.06.007
论文题名:
Early Jurassic carbon and oxygen isotope records and seawater temperature variations: Insights from marine carbonate and belemnite rostra (Pieniny Klippen Belt, Carpathians)
作者: Arabas A.; Schlögl J.; Meister C.
刊名: Palaeogeography, Palaeoclimatology, Palaeoecology
ISSN: 0031-0182
出版年: 2016
语种: 英语
英文关键词: Elemental ratios ; Palaeoclimate ; Palaeoenvironment ; Stable isotopes ; Tethys Ocean
英文摘要: New carbon and oxygen isotope records and discussion of the main variations in seawater temperature through the Sinemurian-Aalenian of the Pieniny Klippen Basin (northern Tethys Ocean) are presented herein. Comparison of the recorded changes in stable-isotope compositions of bulk carbonate and belemnite rostra from an open-marine environment with previously documented, predominantly restricted epicontinental data enables determination of major climatic events that were most likely of worldwide extent. A slight positive δ 13C shift is recorded in the lowermost Upper Pliensbachian. A significant positive excursion in carbonate carbon isotope values is documented in the Lower Toarcian Serpentinum Zone. Furthermore, the δ 13C values display a falling trend in the Lower-Upper Toarcian and relatively constant values in the Aalenian. Temperatures inferred from the δ 18O values of well-preserved belemnite rostra suggest rather cool seawater conditions (10-13 °C) in the Pieniny Klippen Basin during the Late Sinemurian, warming by 4 °C in the Early Pliensbachian and then cooling by 8 °C in the Late Pliensbachian. The seawater temperature rose once more in the Early Toarcian and began to fall again during the Middle Toarcian. In the Middle-?Late Aalenian, seawater temperatures oscillated between 10 and 13 °C. © 2017 Elsevier B.V.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/68168
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作者单位: Institute of Geological Sciences, Polish Academy of Sciences, Research Centre in Kraków, ul. Senacka 1, Kraków 31-002, Poland; Department of Geology and Paleontology, Faculty of Natural Sciences, Comenius University in Bratislava, Mlynská dolina, Ilkovičova 6, SK-842 15 Bratislava, Slovakia; Department of Geology and Paleontology, Natural History Museum of Geneva, 1 Rte de Malagnou, CP 6434, 1211 Geneva 6, Switzerland

Recommended Citation:
Arabas A.,Schlögl J.,Meister C.. Early Jurassic carbon and oxygen isotope records and seawater temperature variations: Insights from marine carbonate and belemnite rostra (Pieniny Klippen Belt, Carpathians)[J]. Palaeogeography, Palaeoclimatology, Palaeoecology,2016-01-01
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