The Wilhelmøya Formation (Upper Triassic-Lower Jurassic) at Bohemanflya, Spitsbergen
An 18.5 m thick shale sequence of Norian-Rhaetian age is described from the Bohemanflya-Syltoppen area (north of Isfjorden. central Spitsbergen). Lithological, petrographical and palynological analyses show that the sequence represents a marginal development of the lower part of the Wilhelmeya Forma...
Published in: | Polar Research |
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Main Authors: | , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Norwegian Polar Institute
1985
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Subjects: | |
Online Access: | https://polarresearch.net/index.php/polar/article/view/2522 https://doi.org/10.3402/polar.v3i2.6949 |
Summary: | An 18.5 m thick shale sequence of Norian-Rhaetian age is described from the Bohemanflya-Syltoppen area (north of Isfjorden. central Spitsbergen). Lithological, petrographical and palynological analyses show that the sequence represents a marginal development of the lower part of the Wilhelmeya Formation. The depositional history at the Triassic-Jurassic transition is discussed in the light of this new evidence. The Wilhelmøya Formation was probably deposited during a weak marine transgression over an area of low relief. Low sediment supply and current and wave reworking of the sediments characterized the depositional conditions. |
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