Are there Upper Cretaceous sedimentary rocks preserved on Sørkapp Land, Svalbard?

Smelror, Morten; Larssen, Geir Birger

doi:10.17850/njg96-2-05

Cited by 16 publications

(18 citation statements)

References 16 publications

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“…The height difference between these coals of same stratigraphic level is c. 600 m across a horizontal distance of only 9 km. [12,23,39,72,73,78,84,90,92] and this study. Stratigraphic chart after [99].…”

Section: Tectono-sedimentary Implications Of the Thermal Maturity Of mentioning

confidence: 52%

“…At Sylfjellet, the Paleocene Firkanten Formation rests on the Barremian-Aptian Helvetiafjellet Formation. This regional hiatus is known to increase in magnitude northward within the CTB, with the Firkanten Formation lying directly on top of the upper Albian strata of the Carolinefjellet Formation deposits in southern Spitsbergen [90], middle Albian strata in southeastern Spitsbergen [91], Aptian strata in Central Spitsbergen [39], upper Aptian in the Longyearbyen area and lower Aptian at Erdmannflya [12]. In the northernmost location of Ny-Ålesund, the Van Mijenfjorden Group rests directly on Lower Triassic and Upper Permian strata [92].…”

Section: Origin and Extent Of The Basal Hiatus Of The Paleogene Sylfjmentioning

confidence: 99%

“…In the structural outlier of the Øyrland Graben, Krutzsch [78] presented Upper Cretaceous microflora from the strata that have officially been assigned to the Firkanten Formation in Dallmann [9]. Since reworked Upper Cretaceous palynomorphs are not unusual in the Paleocene of Svalbard, Smelror and Larssen [90] doubt an Upper Cretaceous age, but do not present evidence for a Paleocene age of the Øyrland deposit. The age is therefore added as questionable in Fig.…”

Section: Origin and Extent Of The Basal Hiatus Of The Paleogene Sylfjmentioning

confidence: 99%

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Sylfjellet: a new outcrop of the Paleogene Van Mijenfjorden Group in Svalbard

Jochmann¹,

Augland

Lenz

et al. 2019

Arktos

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A hitherto unrecognized Paleogene outcrop has been discovered at Sylfjellet, a mountain located at the northern side of Isfjorden, Svalbard. The strata, which cover an area of 0.8 km 2 , have until now been assigned to the Lower Cretaceous succession of the Adventdalen Group. In this study, the Sylfjellet site was studied in detail to provide an updated structural and sedimentological description of strata and lithostratigraphy. The age and burial history of the investigated succession were constrained by absolute (U/PB) and relative dating methods in addition to vitrinite reflectance analyses of coal seams. The results show a Paleogene age of the deposits, which is supported by the occurrence of an angiosperm pollen grain, plant macrofossils, and a tephra layer of early Selandian age (61.53 Ma). The 250 m-thick succession of Sylfjellet is assigned to the Firkanten, Basilika and Grumantbyen formations. This succession unconformably overlies the Lower Cretaceous Helvetiafjellet Formation. Sylfjellet is incorporated into the West Spitsbergen Fold-and-Thrust Belt and interpreted to be a fourth structural outlier of the Van Mijenfjorden Group. Vitrinite reflectance data indicate that at least 2000 m overburden has been eroded above the Sylfjellet coal seams, and that maximum burial of the strata predates folding and thrusting in the area.

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Section: Tectono-sedimentary Implications Of the Thermal Maturity Of mentioning

confidence: 52%

Section: Origin and Extent Of The Basal Hiatus Of The Paleogene Sylfjmentioning

confidence: 99%

Section: Origin and Extent Of The Basal Hiatus Of The Paleogene Sylfjmentioning

confidence: 99%

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Sylfjellet: a new outcrop of the Paleogene Van Mijenfjorden Group in Svalbard

Jochmann¹,

Augland

Lenz

et al. 2019

Arktos

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“…New tracks were subsequently discovered when the same locality was revisited in the early 2000s (Hurum et al 2006). Other Spitsbergen dinosaur tracks from the same formation were also reported at Hanaskogdalen and Ullaberget, in the doctoral work of Ivar Midtkandal (Midtkandal et al 2007), and at Olsokneset, described in a popular paper by Smelror et al (2006).…”

mentioning

confidence: 57%

The theropod that wasn't: an ornithopod tracksite from the Helvetiafjellet Formation (Lower Cretaceous) of Boltodden, Svalbard

Hurum

Druckenmiller

Hammer

et al. 2016

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Abstract:We re-examine a Lower Cretaceous dinosaur tracksite at Boltodden in the Kvalvågen area, on the east coast of Spitsbergen, Svalbard. The tracks are preserved in the Helvetiafjellet Formation (Barremian). A sedimentological characterization of the site indicates that the tracks formed on a beach/margin of a lake or interdistributary bay, and were preserved by flooding. In addition to the two imprints already known from the site, we describe at least 34 additional, previously unrecognized pes and manus prints, including one trackway. Two pes morphotypes and one manus morphotype are recognized. Given the range of morphological variation and the presence of manus tracks, we reinterpret all the prints as being from an ornithopod rather than a theropod, as previously described. We assign the smaller (morphotype A, pes; morphotype B, manus) to Caririchnium billsarjeanti. The larger (morphotype C, pes) track is assigned to Caririchnium sp., differing in size and interdigital angle from the two described ichnospecies C. burreyi and C. billsarjeanti. The occurrence of a quadrupedal, small to medium-sized ornithopod in Svalbard is puzzling, considering the current palaeogeographical reconstructions and that such dinosaur tracks have mainly been described from Europe but not North America.Gold Open Access: This article is published under the terms of the CC-BY 3.0 license.

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“…Smelror & Larssen (2016) argue that their observations question the Late Cretaceous age reported for the Firkanten Formation in the Øyrlandet Graben on western Sørkapp Land by Krutzsch (2001), as the pollen and spores reported from this graben may not be in situ. The palynostratigraphic data provided by Smelror & Larssen (2016) suggest that the Firkanten and Basilika formations on Sørkapp Land were deposited in a relatively short time-period during the Early to Mid Thanetian. The youngest Cretaceous deposits documented from the Carolinefjellet Formation in eastern Sørkapp Land are of Late Albian age.…”

Section: Dalseg Et Al (2016a) Analysed the Upper Jurassic-lowermentioning

confidence: 97%

Geology of Arctic Margins: Proceedings of ICAM VII 2015

Smelror¹

2016

NJG

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The present NJG issue consists of six contributions on the geology of the Arctic, including papers presented at the 7th International Conference on Arctic Margins (ICAM) in Trondheim, June 2015. Since its initiation 25 years ago, ICAM has become a well established forum for Earth scientists studying the Arctic. The papers in the present issue cover Cretaceous magmatism in Canada, biostratigraphy of the Upper Jurassic, Cretaceous and Paleocene strata on Svalbard, and a new model for Late Weischselian time-transgressive glacial maxima positions of the last Scandinavian Ice Sheet.

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Are there Upper Cretaceous sedimentary rocks preserved on Sørkapp Land, Svalbard?

Cited by 16 publications

References 16 publications

Sylfjellet: a new outcrop of the Paleogene Van Mijenfjorden Group in Svalbard

Sylfjellet: a new outcrop of the Paleogene Van Mijenfjorden Group in Svalbard

The theropod that wasn't: an ornithopod tracksite from the Helvetiafjellet Formation (Lower Cretaceous) of Boltodden, Svalbard

Geology of Arctic Margins: Proceedings of ICAM VII 2015

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