干旱区生态环境知识资源中心(Arid): A new high-resolution stratigraphic and palaeoenvironmental record spanning the End-Permian Mass Extinction and its aftermath in central Spitsbergen, Svalbard

Arid

DOI	10.1016/j.palaeo.2020.109732
	A new high-resolution stratigraphic and palaeoenvironmental record spanning the End-Permian Mass Extinction and its aftermath in central Spitsbergen, Svalbard
	Zuchuat, V; Sleveland, A. R. N.; Twitchett, R. J.; Svensen, H. H.; Turner, H.; Augland, L. E.; Jones, M. T.; Hammer, O.; Hauksson, B. T.; Haflidason, H.; Midtkandal, I; Planke, S.
通讯作者	Zuchuat, V
来源期刊	PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
ISSN	0031-0182
EISSN	1872-616X
出版年	2020
卷号	554
英文摘要	Research on the Permian-Triassic boundary (PTB) along the northern margins of Pangaea (exposed today in the Arctic region) has been heavily reliant on field observations, where data resolution was consequently determined by outcrop condition and accessibility. Core drilling in central Spitsbergen allowed for a near-complete recovery of two similar to 90 m cores through the PTB. Analyses of the core and nearby outcrops include stratigraphic logging and sampling, XRF scanning, petrography, biostratigraphy, isotope geochemistry, and geochronology. The First Appearance Datum (FAD) of H. parvus in Svalbard places the base of the Triassic ca. 4 m above the base of the Vikinghogda Formation, and ca. 2.50 m above the End-Permian Mass Extinction (EPME) and its associated sharp negative delta C-13. The PTB therefore falls within the Reduviasporonites chalastus Assemblage Zone in Svalbard. Precise U-Pb TIMS dating of two zircon crystals in a tephra layer just above the first documented Hindeodus parvus in Svalbard gives an age of 252.13 +/- 0.62 Ma. High-resolution palaeoenvironmental proxies, including Si/kcps (kilo counts per second), Zr/Rb, K/Ti, Fe/K, and V/Cr, indicate a transition towards a more arid climate in the earliest Triassic, contemporaneous with prolonged bottom-water dysoxic/anoxic conditions, following an increase in volcanic activity in the Late Permian. Statistical analysis of Zr/Rb, K/Ti and V/Cr elemental ratios suggests that the system was impacted by long-eccentricity (400 kyr) cyclicity. The delta C-13 excursion in organic carbon (delta C-13(org)) record signals a large negative carbon isotope excursion (CIE) associated with the mass extinction event, but also records a second, smaller negative CIE ca. 22 m above this interval. This younger delta C-13(org) excursion correlates to similar CIEs in the Dienerian (late Induan) records of other sections, notably in the Tethys Ocean, which have been interpreted as recording a small biotic crisis during the post-extinction recovery. Evidence of this negative CIE in Spitsbergen suggests that the Dienerian crisis may have been global in extent. The negative delta C-13(org) values are associated with evidence for dysoxia or anoxia in the core, and the occurrence of tephra layers in the same interval suggests a possible connection between the Dienerian crisis and a discrete episode of volcanic activity.
英文关键词	Permian-Triassic boundary Hindeodus parvus Climate change Long eccentricity Dienerian crisis
类型	Article
语种	英语
开放获取类型	hybrid, Green Published
收录类别	SCI-E
WOS记录号	WOS:000552137300002
WOS关键词	CARBON-ISOTOPE STRATIGRAPHY ; KAPP STAROSTIN FORMATION ; TRIASSIC BOUNDARY ; SVERDRUP BASIN ; SOUTH CHINA ; KAROO BASIN ; NORTHWEST PANGEA ; FACIES ANALYSIS ; MARINE ANOXIA ; RECOVERY
WOS类目	Geography, Physical ; Geosciences, Multidisciplinary ; Paleontology
WOS研究方向	Physical Geography ; Geology ; Paleontology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/325195
作者单位	[Zuchuat, V; Sleveland, A. R. N.; Midtkandal, I] Univ Oslo, Dept Geosci, Sem Soelands Vei 1, N-0371 Oslo, Norway; [Twitchett, R. J.] Nat Hist Museum, Earth Sci Dept, London SW7 5BD, England; [Svensen, H. H.; Augland, L. E.; Jones, M. T.; Planke, S.] Univ Oslo, Ctr Earth Evolut & Dynam CEED, Dept Geosci, Sem Soelands Vei 1, N-0371 Oslo, Norway; [Turner, H.; Hammer, O.] Univ Oslo, Nat Hist Museum, Pb 1172, N-0318 Oslo, Norway; [Hauksson, B. T.] Geodata AS, Schweigaards Gate 28, N-0191 Oslo, Norway; [Haflidason, H.] Univ Bergen, Dept Earth Sci, Allegate 41, N-5020 Bergen, Norway; [Planke, S.] Volcan Basin Petr Res VBPR, Blindernveien 5, N-0361 Oslo, Norway
推荐引用方式 GB/T 7714	Zuchuat, V,Sleveland, A. R. N.,Twitchett, R. J.,et al. A new high-resolution stratigraphic and palaeoenvironmental record spanning the End-Permian Mass Extinction and its aftermath in central Spitsbergen, Svalbard[J],2020,554.
APA	Zuchuat, V.,Sleveland, A. R. N..,Twitchett, R. J..,Svensen, H. H..,Turner, H..,...&Planke, S..(2020).A new high-resolution stratigraphic and palaeoenvironmental record spanning the End-Permian Mass Extinction and its aftermath in central Spitsbergen, Svalbard.PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,554.
MLA	Zuchuat, V,et al."A new high-resolution stratigraphic and palaeoenvironmental record spanning the End-Permian Mass Extinction and its aftermath in central Spitsbergen, Svalbard".PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY 554(2020).