Triassic conodonts from Svalbard and their Boreal correlations

Nakrem, Hans Arne; Orchard, Michael J.; Weitschat, Wolfgang; Hounslow, Mark W.; Beatty, Tyler W.; Mørk, Atle

doi:10.1111/j.1751-8369.2008.00076.x

Cited by 56 publications

(25 citation statements)

References 21 publications

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“…Mørk et al (1999) originally placed the PTB at the base of the Vikinghøgda Formation while, more recently, Hounslow et al (2008) shifted the boundary 12 m above, based on magnetostratigraphic data, whereas Nakrem et al (2008) placed the PTB in-between on the basis of conodonts. The sediments are slightly more mature than the other sections, with MPI-1 values ranging from 0.46-0.69 (R c 0.68-0.82%; Nabbefeld et al, 2010a).…”

Section: Vikinghøgda Section (Lusitaniadalen Spitsbergen (Svalbard))mentioning

confidence: 99%

Occurrence and significance of phytanyl arenes across the Permian-Triassic boundary interval

Grotheer

Métayer

Piggott

et al. 2017

Organic Geochemistry

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a b s t r a c tPhytanyl benzene and phytanyl toluene occur in mudstones from several key Permian-Triassic Boundary (PTB) sections from mid-northern palaeolatitudes (Spitsbergen and Eastern Greenland), as well as mid-southern palaeolatitudes (Western Australia). The occurrence of these compounds through the different PTB sections is related to the occurrence of the previously identified C 33 n-alkyl cyclohexane, suggesting their parent organism shared a similar unique ecological niche and was associated with the extinction horizon. Further, the lack of these compounds in the carbonate-dominated palaeoequatorial, Global Stratotype Section and Point (GSSP), Meishan-1 (South China) section possibly points to their source being temperature and climate controlled.

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Section: Vikinghøgda Section (Lusitaniadalen Spitsbergen (Svalbard))mentioning

confidence: 99%

Occurrence and significance of phytanyl arenes across the Permian-Triassic boundary interval

Grotheer

Métayer

Piggott

et al. 2017

Organic Geochemistry

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“…No evidence of subaerial exposure or a hiatus has been recorded in central Spitsbergen (Mangerud & Konieczny, 1993). However, whether or not the Permo-Triassic boundary represents a period of Dallmann et al, 1999 erosion, non-deposition or conformable sedimentation remains controversial (Mørk et al, 1989;Stemmerik & Worsley, 1989;Mangerud & Konieczny, 1993;Ehrenberg et al, 2001;Nakrem et al, 2008;Dustira et al, 2013).…”

Section: Study Intervalmentioning

confidence: 99%

Facies arrangement and cyclostratigraphic architecture of the Templet Member and the Kapp Starostin Formation (Permian) on Spitsbergen, Svalbard

Jafarian¹,

Groen²,

Nooitgedacht³

et al. 2017

NJG

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Because of outstanding outcrops, Spitsbergen (Svalbard archipelago) provides unique opportunities to investigate the whole Upper Palaeozoic succession in great detail. This study can help to interpret the stratigraphic history and depositional evolution at other locations exposing coeval shelf strata along the northern margin of Pangea, e.g., the southern Barents Sea and Arctic Canada. Bed-scale outcrop observations are combined with microfacies studies to interpret the sedimentary settings and depositional environment of the Upper Palaeozoic strata. A sequencestratigraphic analysis has been carried out to evaluate the relative timing of sediment facies deposition in response to sea-level changes. The Early Artinskian to Kazanian successions of the Templet Member and the Kapp Starostin Formation were divided into five parasequences that are superimposed on a long-term, second-order, sea-level fall. These parasequences record a fundamental change of the sedimentary setting, from a restricted-marine, warm-water carbonate platform to an open-marine, cold-water, biosiliceous-carbonate ramp system. A cross-section across Svalbard comprising nine onshore sections shows that during deposition of the Kapp Starostin Formation a major depocentre marked by thick parasequences and a higher proportion of deep-water facies (bedded cherts) is located in the southwest of Spitsbergen (at Akseløya), whereas northeastern Svalbard records shallow-water microfacies. Svalbard was tectonically passive during the Permian; the local differences in accommodation space and facies were most likely linked to the rejuvenation of pre-existing structural elements, inherited from the Carboniferous. A deepening of the depositional environment combined with cold-water climatic conditions as recorded in our study area has also been documented in other Upper Palaeozoic successions around the Arctic, such as the Finnmark Platform (Norwegian Barents Sea) and the Sverdrup Basin (Arctic Canada). This transition in the depositional environment along the northern margin of Pangea is the result of large-scale changes in oceanic circulation patterns and local palaeogeographic changes during the northward movement of Pangea.

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“…The upper part of the Vardebukta Formation contains the so−called Myalina Bed yielding conodonts indicative of the late Griesbachian/early Dienerian (Induan) age (Nakrem et al 2008), whereas bio−magnetostratigraphic analysis (Hounslow and Nawrocki 2008) suggests a late Griesbachian age. The boundary between the Vardebukta Formation and the overlying Tvillingodden Formation is usually re− garded as the Induan/Olenekian boundary (see summary in Mørk et al 1999).…”

Section: Geological Settingmentioning

confidence: 99%

“…Mørk et al (1989Mørk et al ( , 1994 and Mørk (1994) showed the existence of a major early Olenekian transgression in the circum−Arctic area. Its age is based on a characteristic fossil assemblages (cono− donts, ammonoids, bryozoans and bivalves) from the Tvillingodden Formation (Mørk et al 1999;Nakrem et al 2008;. According to the palynological investigations of Vigran et al (2014), the overlying Tvillingodden Formation corresponds to the Naumovaspora striata assemblage zone (early Olene− kian/Smithian).…”

Section: Geological Settingmentioning

confidence: 99%

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Crinoids from Svalbard in the aftermath of the end−Permian mass extinction

Salamon¹,

Gorzelak²,

Hanken³

et al. 2015

Polish Polar Research

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Abstract:The end−Permian mass extinction constituted a major event in the history of cri− noids. It led to the demise of the major Paleozoic crinoid groups including cladids, disparids, flexibles and camerates. It is widely accepted that a single lineage, derived from a late Paleo− zoic cladid ancestor (Ampelocrinidae), survived this mass extinction. Holocrinid crinoids (Holocrinus, Holocrinida) along with recently described genus Baudicrinus (Encrinida), the only crinoid groups known from the Early Triassic, are considered the stem groups for the post−Paleozoic monophyletic subclass Articulata. Here, we report preliminary data on unex− pectedly diverse crinoid faunas comprising at least four orders from the Lower Triassic (Induan and Olenekian) of Svalbard, extending their stratigraphic ranges deeper into the early Mesozoic. These findings strongly imply that the recovery of crinoids in the aftermath of the end−Permian extinction began much earlier at higher palaeolatitudes than in the central Tethys.

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Triassic conodonts from Svalbard and their Boreal correlations

Cited by 56 publications

References 21 publications

Occurrence and significance of phytanyl arenes across the Permian-Triassic boundary interval

Occurrence and significance of phytanyl arenes across the Permian-Triassic boundary interval

Facies arrangement and cyclostratigraphic architecture of the Templet Member and the Kapp Starostin Formation (Permian) on Spitsbergen, Svalbard

Crinoids from Svalbard in the aftermath of the end−Permian mass extinction

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