DOI: 10.1016/j.palaeo.2016.02.029
论文题名: High-resolution organic carbon-isotope stratigraphy of the Middle Jurassic-Lower Cretaceous Agardhfjellet Formation of central Spitsbergen, Svalbard
作者: Koevoets M.J. ; Abay T.B. ; Hammer Ø. ; Olaussen S.
刊名: Palaeogeography, Palaeoclimatology, Palaeoecology
ISSN: 0031-0182
出版年: 2016
卷: 449 起始页码: 266
结束页码: 274
语种: 英语
英文关键词: Arctic
; Chemostratigraphy
; Kimmeridgian
; Oxfordian
; Rock Eval
英文摘要: We present the first complete organic carbon-isotope curve from the Agardhfjellet Formation, central Spitsbergen (Svalbard). Samples from two drill cores (DH2 and DH5R) were analysed for δ13Corg, total organic carbon (TOC) and Rock Eval. Rock Eval, litho- and biostratigraphy demonstrate a similar development in the two cores, allowing construction of a composite δ13Corg curve covering the Bathonian to lowermost Cretaceous. There are only weak correlations between Rock Eval parameters and δ13Corg, suggesting the isotopic signal is not mainly controlled by type of kerogen/maturation but rather reflects regional or global environmental changes. The carbon-isotope curves from the cores can be correlated with previously published curves from outcrops of the Slottsmøya Member and with more distant localities in the Barents Sea, Siberia, Great Britain and the Atlantic. Features in common with other published curves include a Callovian-Oxfordian positive excursion, a Kimmeridgian-Middle Volgian negative trend and a Middle Volgian negative excursion. These correlations allow refinement chronostratigraphy of the Jurassic of Svalbard. © 2016 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/68469
Appears in Collections: 过去全球变化的重建
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作者单位: Museum of Natural History, University of Oslo, PO Box 1172, Blindern, Oslo, Norway; Department of Geosciences, University of Oslo, PO Box 1047, Blindern, Oslo, Norway; Department of Arctic Geology, University Centre in Svalbard, PO Box 156, Longyearbyen, Norway
Recommended Citation:
Koevoets M.J.,Abay T.B.,Hammer Ø.,et al. High-resolution organic carbon-isotope stratigraphy of the Middle Jurassic-Lower Cretaceous Agardhfjellet Formation of central Spitsbergen, Svalbard[J]. Palaeogeography, Palaeoclimatology, Palaeoecology,2016-01-01,449