Palaeocurrent Directions in the Upper Cambrian of North Wales
β Scribed by CRIMES, T. P.
- Book ID
- 109649735
- Publisher
- Nature Publishing Group
- Year
- 1966
- Tongue
- English
- Weight
- 251 KB
- Volume
- 210
- Category
- Article
- ISSN
- 0028-0836
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π SIMILAR VOLUMES
Manganese mineralization occurs throughout the greywackes and pelites of the Harlech Grits Group (LowedMiddle Cambrian) of the Harlech area, North Wales. It is most intense at the base of the Hafotty Formation where it forms a discrete ore bed, and in the upper half of the Gamlan Formation where it
## Abstract The upper Millstone Grit strata (Yeadonian, Namurian) of North Wales have been studied using sedimentological facies analysis and sequence stratigraphy. These strata comprise two cyclothems, each containing prodelta shales (Holywell Shale) that pass gradationally upwards into deltaβfron