Traces of the marine Mjølnir impact event

Dypvik, Henning; Smelror, Morten; Sandbakken, Pål T.; Salvigsen, Otto; Kalleson, E.

doi:10.1016/j.palaeo.2006.04.013

Cited by 34 publications

(17 citation statements)

References 15 publications

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“…bloom is also correlated with the Leiosphaerida spp. bloom presented in Dypvik et al (2006), and places this level in the Janusfjellet section 4 m below the Myklegardfjellet Bed (Rurikfjellet Formation).…”

Section: Discussionmentioning

confidence: 87%

“…bloom in the present study appears to be the same as the Leiosphaeridia spp. bloom in the Agardhfjellet Formation at Janusfjellet presented in Dypvik et al (2006) and which was recorded 4 m below the Myklegardfjellet Bed.…”

Section: Palynofacies and Depositional Environmentmentioning

confidence: 92%

“…6) may correlate with the Leiosphaeridia spp. bloom known from the VolgianRyazanian in the Barents Sea region (Smelror et al, 2002;Bremer et al, 2004;Smelror & Dypvik, 2005Dypvik et al, 2006). This Leiosphaeridia spp.…”

Section: Palynofacies and Depositional Environmentmentioning

confidence: 94%

“…According to Smelror et al (2002) and Dypvik et al (2004), ejecta from this impact form a marker horizon for the VolgianRyazanian boundary (i.e., the Sindre Bed). Bremer et al (2004), Dypvik et al (2006) and also studied sediments in the Barents Sea region affected by the Mjølnir meteorite impact.…”

Section: Previous Studies In the Upper Jurassiclower Cretaceous On Svmentioning

confidence: 99%

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Dinoflagellate cyst biostratigraphy, palynofacies, depositional environment and sequence stratigraphy of the Agardhfjellet Formation (Upper Jurassic–Lower Cretaceous) in central Spitsbergen (Arctic Norway)

Dalseg¹,

Nakrem²,

Smelror³

2016

NJG

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The Upper Jurassic-Lower Cretaceous in the Isfjorden area (central Spitsbergen), consisting mostly of dark shales, with local carbonate-seep deposits, have been analysed for marine palynomorphs and palynofacies. Two dinoflagellate cyst assemblage zones have been defined in the Slottsmøya Member (Agardhfjellet Formation). The palynostratigraphic zones are established with reference to δ 13 C org curves, and are correlated with Early Volgian to Late Ryazanian foraminiferal zones and ammonite zones from the same area. A Leiosphaeridia bloom at 45.62 m in the Janusfjellet profile is correlated with a comparable bloom recovered from several locations on the western Barents shelf. Palynofacies analysis is used to interpret relative sea-level changes and is also used to constrain the sequence stratigraphy of the studied sections at Janusfjellet and Knorringfjellet.

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Section: Discussionmentioning

confidence: 87%

Section: Palynofacies and Depositional Environmentmentioning

confidence: 92%

Section: Palynofacies and Depositional Environmentmentioning

confidence: 94%

Section: Previous Studies In the Upper Jurassiclower Cretaceous On Svmentioning

confidence: 99%

See 2 more Smart Citations

Dinoflagellate cyst biostratigraphy, palynofacies, depositional environment and sequence stratigraphy of the Agardhfjellet Formation (Upper Jurassic–Lower Cretaceous) in central Spitsbergen (Arctic Norway)

Dalseg¹,

Nakrem²,

Smelror³

2016

NJG

Self Cite

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“…2), there is no sedimentation change which could indicate such condensation; however, changes in sedimentation rate were mentioned by Man (2011). It cannot be excluded that some of the changes in condensation and sedimentation rate might be related to the Mjølnir impact in the Barents Sea, which is thought to have occurred close to the start of the late Berriasian (Zakharov et al 1993;Smelror et al 2001;Dypvik et al 2006;Grabowski 2011;Wierzbowski et al 2011;Wierzbowski & Grabowski 2013). …”

Section: Sedimentation Rates At Nordvikmentioning

confidence: 99%

A review of magnetostratigraphic results from the Tithonian–Berriasian of Nordvik (Siberia) and possible biostratigraphic constraints

Schnabl¹,

Pruner²,

Wimbledon³

2015

Geologica Carpathica

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Abstract:In this contribution we examine and discuss recently published magnetostratigraphic data from the Nordvik section (north Siberia) around the Tithonian-Berriasian (J/K) boundary, with a special emphasis on calibration with biostratigraphy and the reliability of both the fossil and magnetic records, as well as sedimentation rates. Specifically, we discuss original new interpretations by Bragin et al. (2013) and the commentary on that work by Guzhikov (2013). We consider some limitations of the Nordvik section, and conclude that the base of M18r, because it is in a condensed part of the sequence, makes a poor contender for precise long-range correlation. We discuss the lack of ammonites at several magnetozone boundaries, and whether the bases of the local zones of Craspedites taimyrensis and Arctoteuthis tehamaensis can be used to bracket the correlative horizon of Calpionella alpina, a widespread marker in the middle of M19n.2n in Tethys.

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The Geochronology of Impact Craters

Kelley

Sherlock

2012

Impact Cratering

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Traces of the marine Mjølnir impact event

Cited by 34 publications

References 15 publications

Dinoflagellate cyst biostratigraphy, palynofacies, depositional environment and sequence stratigraphy of the Agardhfjellet Formation (Upper Jurassic–Lower Cretaceous) in central Spitsbergen (Arctic Norway)

Dinoflagellate cyst biostratigraphy, palynofacies, depositional environment and sequence stratigraphy of the Agardhfjellet Formation (Upper Jurassic–Lower Cretaceous) in central Spitsbergen (Arctic Norway)

A review of magnetostratigraphic results from the Tithonian–Berriasian of Nordvik (Siberia) and possible biostratigraphic constraints

The Geochronology of Impact Craters

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