Mechanisms of collapse of the cretaceous helvetiafjellet formation at Kvalvågen, eastern Spitsbergen

Onderdonk, N.; Midtkandal, Ivar

doi:10.1016/j.marpetgeo.2010.09.004

Cited by 14 publications

(17 citation statements)

References 30 publications

(55 reference statements)

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“…from less than 1 mm to the size of the outcrop) syn-sedimentary deformation mechanisms of growth faulting at shallow crustal conditions (< than 1 km burial), are underrepresented in the current literature, partially due to the relative scarcity of favourable exposures. A few exceptions are available Braathen et al, 2017;Onderdonk & Midtkandal, 2010;Zecchin, Massari, Mellere, & Prosser, 2003), and usually describe neo-tectonic faulting in poorly consolidated lithologies (Bense & Person, 2006;Heynekamp, Goodwin, Mozley, & Haneberg, 1999;Loveless, Bense, & Turner, 2011;Mozley & Goodwin, 1995;Rawling & Goodwin, 2003. This outcrop-based study presents the results of a combined structural-stratigraphic and petrophysical analysis the superbly exposed, Late Triassic growth fault system cropping out in the southern part of Edgeøya, Svalbard (Arctic Norway).…”

Section: O R I G I N a L A R T I C L E Abstractmentioning

confidence: 99%

Sedimentary architecture during Carboniferous rift initiation – the arid Billefjorden Trough, Svalbard

Smyrak-Sikora

Johannessen²,

Olaussen³

et al. 2018

JGS

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When, in March 2011, I entered the building of the University Centre in Svalbard (UNIS) my first thought was:"I want to work here". This dream came true only a year later when I started my long but very rewarding journey through the PhD project. Firstly, I would like to thank my supervisor Snorre Olaussen for offered chance to develop this exciting project in Arctic rift basin geology, his patience and trust. Transition from research conducted in structural geology of metamorphic rocks to basin analysis was not easy and Snorre always served with the guidance, help and tutoring. Huge acknowledgments go to Alvar Braathen, who has introduced me to the outcrops of Billefjorden and Edgeøya, and always offered great support and advice. William Helland Hansen and Jan Inge Faleide are acknowledged for their supervision on the project. I strongly appreciate the scientific freedom and multiple possibilities for development and collaboration I had during the research.

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Section: O R I G I N a L A R T I C L E Abstractmentioning

confidence: 99%

Sedimentary architecture during Carboniferous rift initiation – the arid Billefjorden Trough, Svalbard

Smyrak-Sikora

Johannessen²,

Olaussen³

et al. 2018

JGS

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“…from less than 1 mm to the size of the outcrop) syn‐sedimentary deformation mechanisms of growth faulting at shallow crustal conditions (< than 1 km burial), are underrepresented in the current literature, partially due to the relative scarcity of favourable exposures. A few exceptions are available (Bhattacharya & Davies, ; Bouroullec et al., ; Braathen et al., ; Onderdonk & Midtkandal, ; Zecchin, Massari, Mellere, & Prosser, ), and usually describe neo‐tectonic faulting in poorly consolidated lithologies (Bense & Person, ; Heynekamp, Goodwin, Mozley, & Haneberg, ; Loveless, Bense, & Turner, ; Mozley & Goodwin, ; Rawling & Goodwin, , ). This outcrop‐based study presents the results of a combined structural‐stratigraphic and petrophysical analysis the superbly exposed, Late Triassic growth fault system cropping out in the southern part of Edgeøya, Svalbard (Arctic Norway).…”

Section: Introductionmentioning

confidence: 99%

Architecture, deformation style and petrophysical properties of growth fault systems: the Late Triassic deltaic succession of southern Edgeøya (East Svalbard)

et al. 2018

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The Late Triassic outcrops on southern Edgeøya, East Svalbard, allow a multiscale study of syn-sedimentary listric growth faults located in the prodelta region of a regional prograding system. At least three hierarchical orders of growth faults have been recognized, each showing different deformation mechanisms, styles and stratigraphic locations of the associated detachment interval. The faults, characterized by mutually influencing deformation envelopes over space-time, generally show SW-to SE-dipping directions, indicating a counter-regional trend with respect to the inferred W-NW directed progradation of the associated delta system. The down-dip movement is accommodated by polyphase deformation, with the different fault architectural elements recording a time-dependent transition from fluidal-hydroplastic to ductile-brittle deformation, which is also conceptually scale-dependent, from the smaller-(3rd order) to the larger-scale (1st order) end-member faults respectively. A shift from distributed strain to strain localization towards the fault cores is observed at the meso to microscale (<1 mm), and in the variation in petrophysical parameters of the litho-structural facies across and along the fault envelope, with bulk porosity, density, pore size and microcrack intensity varying accordingly to deformation and reworking intensity of inherited structural fabrics. The second-and third-order listric fault nucleation points appear to be located above blind fault tip-related monoclines involving cemented organic shales. Close to planar, through-going, first-order faults cut across this boundary, eventually connecting with other favourable lower-hierarchy fault to create seismic-scale fault zones similar to those imaged in the nearby offshore areas. The inferred large-scale driving mechanisms for the first-order faults are related to the combined effect of tectonic reactivation of deeper Palaeozoic structures in a far field stress regime due to the Uralide orogeny, and differential compaction associated with increased sand sedimentary input in a fine-grained, water-saturated, low-accommodation, prodeltaic depositional environment. In synergy to this large-scale picture, small-scale causative factors favouring second-and third-order faulting seem to be related to mechanicalrheological instabilities related to localized shallow diagenesis and liquidization fronts.--

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“…This upper Cu unit is capped by shale representing a new flooding surface. Apart from the thick delta-front mudstone of Unit 3 in the profile, presented by Onderdonk & Midtkandal (2010), the Unit B section at Boltodden follows their interpretation of mouth-bar progradation. Unit 3 varies in thickness at Kvalhovden from missing to more than 50 m owing to the position of the underlying sliding blocks.…”

Section: Facies Of the Succession With The Dinosaur Tracksmentioning

confidence: 89%

“…Based on correlations with nearby Kvalhovden, these units belong to the basal part of the Helvetiafjellet Formation. Units A and B can also be correlated with the subdivision given by Onderdonk & Midtkandal (2010), who subdivided the Helvetiafjellet Formation at Kvalhovden into seven numbered units and interpreted their facies associations. We also adopt these subdivisions and their general interpretations for the Boltodden locality.…”

Section: Facies Of the Succession With The Dinosaur Tracksmentioning

confidence: 91%

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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Mechanisms of collapse of the cretaceous helvetiafjellet formation at Kvalvågen, eastern Spitsbergen

Cited by 14 publications

References 30 publications

Sedimentary architecture during Carboniferous rift initiation – the arid Billefjorden Trough, Svalbard

Sedimentary architecture during Carboniferous rift initiation – the arid Billefjorden Trough, Svalbard

Architecture, deformation style and petrophysical properties of growth fault systems: the Late Triassic deltaic succession of southern Edgeøya (East Svalbard)

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

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