Buchardt and Simonarson's Tjornes bed 12: Early Pliocene, Iceland
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Bivalvia
- Cardiida
- Cardiidae
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Serripes groenlandicus
Mohr 1786
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Bivalvia
- Cardiida
- Arcticidae
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Arctica islandica
(Linnaeus 1767)
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Gastropoda
- Naticidae
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Natica sp.
Scopoli 1777
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| see common names | |||||||
Geography
| Country: | Iceland |
| Coordinates: | 66.0° North, 17.0° West (view map) |
| Paleocoordinates: | 66.0° North, 16.9° West |
| Basis of coordinate: | stated in text |
| Geographic resolution: | local area |
Time
| Period: | Neogene | Epoch: | Pliocene |
| Stage: | Zanclean | 10 m.y. bin: | Cenozoic 6 |
| Key time interval: | Early Pliocene | ||
| Age range of interval: | 5.333 - 3.6 m.y. ago |
Stratigraphy
| Geological group: | Breidavik | ||||
| Regional order: | bottom to top | ||||
| Stratigraphic resolution: | bed | ||||
| Stratigraphy comments: Thick sequence of alternating terrestrial and marine sediments and interbedded lava flows of Pliocene and Pleistocene age; mostly fossiliferous marine sandstone with intermittent terrestrial or estuarine lignite beds and muddy sandstone; from Mactra biozone | |||||
Lithology and environment
| Primary lithology: | unlithified sandstone | ||
| Includes fossils? | Y | ||
| Lithology description: Sandstone with intermittent lignite beds and muddy sandstone | |||
| Environment: | marginal marine indet. | Tectonic setting: | rift |
| Geology comments: Near intersection of the axial zone of rifting and volcanism and the Tjornes Fracture Zone; described as horst; tectonically active in the Pliocene-Pleistocene | |||
Taphonomy
| Modes of preservation: | body,original aragonite |
| Size of fossils: | macrofossils |
| Preservation of anatomical detail: | excellent |
Collection methods and comments
| Collection methods: | selective quarrying,field collection |
| Reason for describing collection: | general faunal/floral analysis |
| Collection method comments: Only target species were collected (mainly Arctica islandica/Pygocardia rustica) | |
| Taxonomic list comments:Not representative taxonomic list | |
Metadata
| Also known as: | Bardarson's Tjornes bed 12 | ||
| Database number: | 34952 | ||
| Authorizer: | A. Hendy | Enterer: | A. Hendy |
| Modifier: | A. Hendy | Research group: | marine invertebrate |
| Created: | 2003-10-21 09:41:14 | Last modified: | 2013-11-25 13:37:23 |
| Access level: | group members | Released: | 2004-10-21 09:41:14 |
| Creative Commons license: | CC BY | ||
Reference information
Primary reference:
| 9397. | 1% 20 | B. Buchardt and L.A. Simonarson. 2003. Isotope palaeotemperatures from the Tjornes Beds in Iceland; evidence of Pliocene cooling. Palaeogeography, Palaeoclimatology, Palaeoecology 189(1-2):71-95 [A. Miller/A. Hendy/A. Hendy] |