Download The Mjølnir Impact Event and its Consequences: Geology and by Henning Dypvik, Filippos Tsikalas, Morten Smelror PDF

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By Henning Dypvik, Filippos Tsikalas, Morten Smelror

The Mjølnir impression constitution used to be famous in 1993 and incorporated within the Earth impression Database in 1996, in response to the discoveries of unequivocal meteorite influence signs comparable to surprised quartz, Ir-enrichments, attainable glass remnants, fragments of nickel-rich iron oxides, as well as the convincing complicated crater form of the constitution. This e-book offers the geological and geophysical heritage of the Barents Sea zone in addition to the invention of the Mjølnir influence crater. We position the Mjølnir occasion into the geological framework of the quarter and current elaborative numerical types of its formation and linked tsunami new release. The publication represents an replace and synthesis in addition to the entire compilation of the Mjølnir crater reports.

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Extra info for The Mjølnir Impact Event and its Consequences: Geology and Geophysics of a Late Jurassic/Early Cretaceous Marine Impact Event

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E. the Wilhelmøya (on Svalbard) and Realgrunnen (in the Barents Sea) subgroups, respectively. In the Barents Sea, it is formed by the deltaic to shallow marine Fruholmen Formation and the overlying shallow marine to coastal Stø Formation (Worsley et al. 1988; Worsley 2008). The Mesozoic sediments of the Barents Sea, the Adventdalen Group in particular, can be recognized and match with similar deposits in Svalbard (Figs. 6). These correlations are as follow; the Fuglen Formation correspond to the Oppdalen and Lardyfjellet members of the Agardhfjellet Formation, the Hekkingen Formation can be correlated to the Oppdalsåta and Slottsmøya members, while Klippfisk and Knurr formations are equivalent to the lowermost part of the Rurikfjellet formation (Wimanfjellet Member).

2008). e. the Wilhelmøya (on Svalbard) and Realgrunnen (in the Barents Sea) subgroups, respectively. In the Barents Sea, it is formed by the deltaic to shallow marine Fruholmen Formation and the overlying shallow marine to coastal Stø Formation (Worsley et al. 1988; Worsley 2008). The Mesozoic sediments of the Barents Sea, the Adventdalen Group in particular, can be recognized and match with similar deposits in Svalbard (Figs. 6). These correlations are as follow; the Fuglen Formation correspond to the Oppdalen and Lardyfjellet members of the Agardhfjellet Formation, the Hekkingen Formation can be correlated to the Oppdalsåta and Slottsmøya members, while Klippfisk and Knurr formations are equivalent to the lowermost part of the Rurikfjellet formation (Wimanfjellet Member).

In the northern, more ventilated environments of the Siberian basins towards the wide Arctic basin, several fossil species similar to the ones discovered in Greenland and Svalbard have been recognized (Zakharov 2004, personal communication). Marine shelf sedimentation continued into the Early Cretaceous, but at that time the subsidence was reduced and consequently the basins were gradually filled up. This regressive trend dominated in the Early Cretaceous, but was interrupted by Fig. 17 The figure shows a comparison of Siberian and Barents Sea Volgian and Berriasian detailed biostratigraphy.

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