S136/f715 - Raki Tunnel [Gardiner Greensand, Tapui Glauconitic Sst]: Bortonian, New Zealand
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Gastropoda
- Eulimidae
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Melanella sp.
Bowdich 1822
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Gastropoda
- Neogastropoda
- Fasciolariidae
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Falsicolus ? solidus
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Gastropoda
- Naticidae
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Globisinum sp.
Marwick 1924
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Bivalvia
- Hiatellida
- Hiatellidae
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Panopea sp.
(Menard 1807)
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Bivalvia
- Cardiida
- Veneridae
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Marama pristina
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Bivalvia
- Pectinida
- Pectinidae
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Serripecten sp.
Marwick 1928
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Geography
| Country: | New Zealand |
| Coordinates: | 45.0° South, 170.7° East (view map) |
| Paleocoordinates: | 52.5° South, 167.6° West |
| Basis of coordinate: | based on nearby landmark |
| Geographic resolution: | outcrop |
Time
| Period: | Paleogene | Epoch: | Eocene |
| 10 m.y. bin: | Cenozoic 2-3 | ||
| Key time interval: | Bortonian | ||
| Age range of interval: | 42.60000 - 39.10000 m.y. ago |
Stratigraphy
| Geological group: | Tokarahi | Formation: | Tapui Glauconitic Sandstone | Member: | Gardiner Greensand |
| Stratigraphic resolution: | bed | ||||
| Stratigraphy comments: STRATIGRAPHIC RELATIONS: From Gardiner Greensand Mbr of the Tapui Glauconitic Sand Fm, immediately overlying the Kauru Fm (Teurian), and overlain locally by Raki Siltstone (Kaiatan). AGE: Bortonian of Gage (1957) = late Lutetian-Bartonian. STRATIGRAPHIC POSITION: From lower member within the formation. | |||||
Lithology and environment
| Primary lithology: | coarse,concretionary,ferruginous,glauconitic lithified sandstone |
| Includes fossils? | Y |
| Lithology description: SPECIFIC LITHOLOGY: Concretionary glauconitic sandstone. Coarse pure greensand which weathers to a hard limonitic sandstone. LITHIFICATION: Presumably lithified, based on facies description (detailed in Gage 1957) and age. | |
| Environment: | offshore |
| Geology comments: ENVIRONMENT: Deposited in still water beyond reach of strong wave action. | |
Taphonomy
| Modes of preservation: | body,cast,mold/impression,concretion |
| Degree of concentration: | dispersed |
| Size of fossils: | macrofossils |
| Abundance in sediment: | common |
Collection methods and comments
| Collection excludes: | all microfossils |
| Collection methods: | selective quarrying,field collection |
| Reason for describing collection: | biostratigraphic analysis |
| Museum repositories: | IGNS |
| Collection method comments: COLLECTOR: Collected by various authors, which may include: Marwick (1924-1944), Laws (1930-1941), and Powell (1942). REPOSITORY: New Zealand Geological Survey (now GNS Science, Lower Hutt, New Zealand). | |
| Taxonomic list comments:COVERAGE: Exhaustive for bivalvia, gastropoda, and brachiopoda. IDENTIFIER: J.A. Marwick and O.P Olson(NZGS). NOMENCLATURE: Somewhat antiquated but identified by specialist and often to subgeneric and species resolution. | |
Metadata
| Also known as: | GS5677 | ||
| Database number: | 64736 | ||
| Authorizer: | A. Hendy | Enterer: | A. Hendy |
| Modifier: | A. Hendy | Research group: | marine invertebrate |
| Created: | 2006-09-13 11:22:13 | Last modified: | 2017-05-23 16:34:15 |
| Access level: | the public | Released: | 2006-09-13 11:22:13 |
| Creative Commons license: | CC BY | ||
Reference information
Primary reference:
| 18671. | M. Gage. 1957. The Geology of the Waitaki Subdivision. New Zealand Geological Survey Bulletin 55 [A. Hendy/A. Hendy] |