Category:Chronostratigraphy of the Chalk Group
The onshore Chalk Group succession in the UK belongs to the Late Cretaceous Period, and represents the Cenomanian, Turonian, Coniacian, Santonian, Campanian and Maastrichtian Ages. In the North Sea, the youngest part of the Chalk Group (Ekofisk Formation) belongs to the basal Paleogene Period (Danian Age). The rock intervals corresponding to each of the above Ages are termed Stages, and they bear the same names as the Ages (e.g. Cenomanian Stage etc.).
Lithostratigraphy | Period | Age/Stage | Date* (millions of years before present) |
Duration* (millions of years) |
PALEOGENE | ← 61 | |||
CHALK GROUP |
Danian | ← 65+/-0.1 | 4 | |
LATE CRETACEOUS |
Maastrichtian | ← 71.3+/-0.5 | 6.3 | |
Campanian | ← 83.5+/-0.5 | 12.2 | ||
Santonian | ← 85.8+/-0.5 | 2.3 | ||
Coniacian | ← 89+/-0.5 | 3.2 | ||
Turonian | ← 93.5+/-0.2 | 4.5 | ||
Cenomanian | ← 98.9+/-0.6 | 5.4 |
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References
GRADSTEIN, F & OGG, J. 1996. A Phanerozoic time scale. Episodes, 19, 3-5
Pages in category "Chronostratigraphy of the Chalk Group"
The following 7 pages are in this category, out of 7 total.
- Chronostratigraphy of the Chalk Group - Cenomanian Stage
- Chronostratigraphy of the Chalk Group - Turonian Stage
- Chronostratigraphy of the Chalk Group - Coniacian Stage
- Chronostratigraphy of the Chalk Group - Santonian Stage
- Chronostratigraphy of the Chalk Group - Campanian Stage
- Chronostratigraphy of the Chalk Group - Maastrichtian Stage
- Chronostratigraphy of the Chalk Group - Paleogene Period, Danian Stage