Frænkelryggen Formation
| Frænkelryggen Formation | |
|---|---|
| Stratigraphic range: Lochkovian | |
| Type | Formation |
| Unit of | Red Bay Group |
| Underlies | Ben Nevis Formation |
| Overlies | Andréebreen Formation |
| Lithology | |
| Primary | Sandstone |
| Other | Shale |
| Location | |
| Coordinates | 79°42′N 12°30′E / 79.7°N 12.5°E |
| Approximate paleocoordinates | 6°18′N 17°54′W / 6.3°N 17.9°W |
| Region | Svalbard |
| Country |  Norway |
| Type section | |
| Named for | Frænkelryggen (583 m (1,913 ft)) |
| Named by | Kiaer |
| Year defined | 1918 |
  Frænkelryggen Formation (Svalbard) | |
The Frænkelryggen Formation is a geologic formation in Svalbard, Norway. The fluvial sandstones and green shales preserve flora and early fish fossils dating back to the Lochkovian stage of the Early Devonian period.
Description
Defined at the Frænkelryggen mountain (583 m (1,913 ft)) by Kiaer in 1918,[1] the formation was originally described as Silurian,[2] later dating of the formation provided likely ages between 413.5 and 411 Ma, dating the formation to the Lochkovian stage of the Early Devonian.[3] The formation belongs to the Red Bay Group, conformably overlying the Andréebreen Formation and overlain conformably by the Ben Nevis Formation.[4]
The formation comprises sandstone and green shales deposited in a fluvial environment.
Fossil content
The Frænkelryggen Formation has provided fossils of:[2][5]
Vertebrates
Flora
See also
References
- ^ Dallmann & Mørk, 1991, p.129
- ^ a b Red Bay Series at Fossilworks.org
- ^ King & Rücklin, 2020, p.3
- ^ Pernègre & Blieck, 2016, p.8
- ^ Hoeg, 1942
- ^ Blieck & Heintz, 1983, p.63
- ^ Blieck & Heintz, 1983, p.51
- ^ Blieck & Heintz, 1983, p.55
- ^ Blieck & Heintz, 1983, p.57
- ^ a b Scott, 2011, p.126
- ^ Scott, 2011, p.64
Bibliography
- Template:Cite LSA doi:10.7717/peerj.9368
- Template:Cite LSA doi:10.5252/g2016n1a1
- Template:Cite LSA
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