气候变化领域集成服务门户(CCPortal): Late Turonian climate variability in the Bohemian Cretaceous Basin – A sclerochronological study of Inoceramus hercules shells from the Úpohlavy quarry (Czech Republic)

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DOI	10.1016/j.palaeo.2020.109996
	Late Turonian climate variability in the Bohemian Cretaceous Basin – A sclerochronological study of Inoceramus hercules shells from the Úpohlavy quarry (Czech Republic)
	Walliser E.O.; Vodrážka R.; Höche N.; Voigt S.; Schöne B.R.
发表日期	2020
ISSN	0031-0182
卷号	560
英文摘要	The δ18O record of well-preserved shells of the inoceramid Inoceramus hercules from the Úpohlavy working quarry (Czech Republic) provides an insight into the climate variability in the late Turonian benthic environment of the Bohemian Cretaceous Basin. Similar to modern bivalves, this inoceramid species built its shell near equilibrium with the oxygen isotope value of the ambient water. Due to the nearly year-round shell growth, sequentially sampled δ18O values allowed to estimate the narrowest sub-annual temperatures fluctuations that prevailed during lifetime of the organisms. In accordance with previous studies, reconstructed temperatures suggest colder water conditions (19.0 ± 0.9 °C) during the earliest late Turonian (coinciding with the Hyphantoceras Event; also known as Hitch Wood Event) than during the later part of the substage (20.9 ± 1.1 °C). Climate warming, however, did not affect the sub-annual temperature fluctuations evenly, but predominantly affected the warmest part of the year (at least +4.0 °C). On the contrary, the coldest recorded temperatures remained more or less invariant, varying not (much) more than +1.0 °C across the studied time interval. The observed changes in the benthic temperature estimates likely reflect shifts in seasonal sea surface temperature amplitudes in response to climate forcing. Given the widespread distribution of I. hercules in the upper Turonian–lower Coniacian hemipelagic strata of Europe, the present study sets the basis for future continent-wide sub-annually-resolved climate reconstructions. © 2020
英文关键词	Bivalve sclerochronology; Hyphantoceras Event; Inoceramid; Seasonality; Stable isotopes
语种	英语
scopus关键词	benthos; biochronology; bivalve; climate forcing; climate variation; Cretaceous; oxygen isotope; paleoclimate; paleotemperature; quarry; sea surface temperature; shell; Turonian; Bohemian Basin; Czech Republic; Bivalvia; Inoceramidae; Inoceramus
来源期刊	Palaeogeography, Palaeoclimatology, Palaeoecology
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/150310
作者单位	Institute of Geosciences, University of Mainz, Johann-Joachim-Becher-Weg 21, Mainz, 55128, Germany; Czech Geological Survey, Klárov 3, Prague, CZ-11821, Czech Republic; Institute of Geosciences, Goethe University Frankfurt, Altenhöferallee 1, Frankfurt, 60438, Germany
推荐引用方式 GB/T 7714	Walliser E.O.,Vodrážka R.,Höche N.,等. Late Turonian climate variability in the Bohemian Cretaceous Basin – A sclerochronological study of Inoceramus hercules shells from the Úpohlavy quarry (Czech Republic)[J],2020,560.
APA	Walliser E.O.,Vodrážka R.,Höche N.,Voigt S.,&Schöne B.R..(2020).Late Turonian climate variability in the Bohemian Cretaceous Basin – A sclerochronological study of Inoceramus hercules shells from the Úpohlavy quarry (Czech Republic).Palaeogeography, Palaeoclimatology, Palaeoecology,560.
MLA	Walliser E.O.,et al."Late Turonian climate variability in the Bohemian Cretaceous Basin – A sclerochronological study of Inoceramus hercules shells from the Úpohlavy quarry (Czech Republic)".Palaeogeography, Palaeoclimatology, Palaeoecology 560(2020).