Garnedd-Wen Formation facts for kids
Quick facts for kids Garnedd-Wen FormationStratigraphic range: Hirnantian Age |
|
|---|---|
The upper slopes of Tarren y Gesail are primarily in the Garnedd-Wen Formation
|
|
| Type | Group |
| Unit of | Abercorris Group |
| Overlies | Narrow Vein Mudstone Formation |
| Thickness | 1,000 metres (3,300 ft) to 3,000 metres (9,800 ft) |
| Lithology | |
| Primary | Mudstone |
| Other | Sandstone |
| Location | |
| Coordinates | 52°38′07″N 3°54′26″W / 52.6354°N 3.9071°W |
| Region | Mid Wales |
| Country | Wales |
| Extent | Tywyn to Dinas Mawddwy |
| Type section | |
| Named for | Garneddwen |
The Garnedd-Wen Formation (also known as the Garnedd-Wen Beds) is an Ordovician lithostratigraphic group (a sequence of rock strata) in Mid Wales. The rock of the formation is a mixture of mudstones, siltstones, fine- to coarse-grained sandstones, greywackes and conglomerates. The formation extends from Dinas Mawddwy in the north-east to Tywyn in the south-west.
Geography
The Garnedd-Wen Formation is the upper strata of rock across a wide part of western Mid Wales. In particular, it forms the upper rock beds of the Tarren Hills on the south side of the Bala Fault, west of Talyllyn Lake.
All content from Kiddle encyclopedia articles (including the article images and facts) can be freely used under Attribution-ShareAlike license, unless stated otherwise. Cite this article:
Garnedd-Wen Formation Facts for Kids. Kiddle Encyclopedia.