Upper Ordovician carbon isotope chemostratigraphy and a high-resolution assessment of the Hirnantian Stage in the Baltic Sea subsurface

doi:10.1080/11035897.2024.2316056

NIGPAS OpenIR

	Upper Ordovician carbon isotope chemostratigraphy and a high-resolution assessment of the Hirnantian Stage in the Baltic Sea subsurface
通讯作者	Calner, Mikael([email protected])
	Gunnarsson, Niklas 1; Calner, Mikael 1; Rasmussen, Christian M. O.2; Wu, Rongchang3,4 ; Lehnert, Oliver 5; Dahlqvist, Peter 6
	2024-05-04
发表期刊	GFF
ISSN	1103-5897
页码	31
摘要	Based on a new deep drilling on southern Gotland (Sweden), this study is the first to document the carbon isotope chemostratigraphy of the Upper Ordovician through lowermost Silurian sedimentary record from the central parts of the Baltic Sea subsurface. The lithological record of the Stora Sutarve core has similarities with adjacent successions in both the Viki core in the East Baltic area and the Borenshult core in the Swedish mainland. The core includes the Kahula (including 13 bentonites in the "Kinnekulle K-bentonite complex"), Hirmuse(?), R & auml;gavere, Paekna, Jonstorp, Loka, Motala and Kallholn formations. Several of the internationally recognized upper Ordovician delta C-13 excursions have been identified in the core, including the Guttenberg Isotope Carbon Excursion (GICE), Moe excursion, Hirnantian Isotope Carbon Excursion (HICE), and an undefined early Silurian carbon isotope excursion, presumably the Early Aeronian Carbon Isotope Excursion (EACIE). We particularly address the microstratigraphy of the Hirnantian Stage and the finer details of the HICE, which is not fully complete and entirely confined to the 2.09-m-thick Loka Formation. This formation yields abundant, but low-richness brachiopod faunas characteristic of the Hirnantian Stage and is, based on erosional-depositional surfaces and facies, interpreted as reflecting interglacial warming and eustatic transgression related to ice-sheet contraction in Gondwana. Based on very dense carbon isotope sampling we identify four clusters of delta C-13 values that aid to define significant changes in the preserved record of the HICE and which may facilitate global correlation of the succession and the herein interpreted sea-level record.
关键词	Carbon isotope stratigraphy sea-level eustasy Palaeoclimate Loka Formation Hirnantia fauna Brevilamnulella Skultorp Member Sweden
DOI	10.1080/11035897.2024.2316056
收录类别	SCI
语种	英语
关键词[WOS]	DRILLCORE STANDARD SUCCESSION ; OSLO-ASKER DISTRICT ; MASS EXTINCTION ; SOUTHERN SWEDEN ; BODA LIMESTONE ; DELTA-C-13 CHEMOSTRATIGRAPHY ; CONODONT BIOSTRATIGRAPHY ; LATEST ORDOVICIAN ; ANTICOSTI ISLAND ; SILJAN DISTRICT
资助项目	Strategic Priority Research Program of the Chinese Academy of Sciences[735]
WOS研究方向	Geology ; Paleontology
WOS类目	Geology ; Paleontology
WOS记录号	WOS:001215572100001
项目资助者	Strategic Priority Research Program of the Chinese Academy of Sciences
出版者	TAYLOR & FRANCIS LTD
文献类型	期刊论文
条目标识符	http://ir.nigpas.ac.cn/handle/332004/43693
专题	中国科学院南京地质古生物研究所
通讯作者	Calner, Mikael
作者单位	1.Lund Univ, Dept Geol, SE-22362 Lund, Sweden 2.Univ Copenhagen, Globe Inst, Copenhagen, Denmark 3.Nanjing Inst Geol & Palaeontol, Chinese Acad Sci, State Key Lab Palaeobiol & Stratig, Nanjing, Peoples R China 4.Chinese Acad Sci, Ctr Excellence Life & Palaeoenvironm, Nanjing, Peoples R China 5.Friedrich Alexander Univ Erlangen Nurnberg FAU, GeoZentrum Nordbayern, Erlangen, Germany 6.Geol Survey Sweden, Lund, Sweden
推荐引用方式 GB/T 7714	Gunnarsson, Niklas,Calner, Mikael,Rasmussen, Christian M. O.,et al. Upper Ordovician carbon isotope chemostratigraphy and a high-resolution assessment of the Hirnantian Stage in the Baltic Sea subsurface[J]. GFF,2024:31.
APA	Gunnarsson, Niklas,Calner, Mikael,Rasmussen, Christian M. O.,Wu, Rongchang,Lehnert, Oliver,&Dahlqvist, Peter.(2024).Upper Ordovician carbon isotope chemostratigraphy and a high-resolution assessment of the Hirnantian Stage in the Baltic Sea subsurface.GFF,31.
MLA	Gunnarsson, Niklas,et al."Upper Ordovician carbon isotope chemostratigraphy and a high-resolution assessment of the Hirnantian Stage in the Baltic Sea subsurface".GFF (2024):31.