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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
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W. T. Pratt; D. G. Woodhall; Malcolm
Fletcher Howells; M. J. Leng (1995).
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1,000 metres (3,300 ft) to 3,000 metres (9,800 ft)
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335:. Geological Society of London. pp. 74–.
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235:. The rock of the formation is a mixture of
359:Geology of the Country Around Cadair Idris
50:are primarily in the Garnedd-Wen Formation
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305:BGS on-line lexicon of rock units
332:The Geology of England and Wales
78:Narrow Vein Mudstone Formation
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255:. The formation extends from
16:Geological formation in Wales
390:Ordovician System of Europe
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362:. H.M. Stationery Office.
243:, fine- to coarse-grained
309:British Geological Survey
275:on the south side of the
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400:Rock formations of Wales
329:P. J. Brenchley (2006).
395:Upper Ordovician Series
301:"Garnedd-Wen Formation"
259:in the north-east to
211:Garnedd-Wen Formation
24:Garnedd-Wen Formation
46:The upper slopes of
263:in the south-west.
213:(also known as the
141: /
30:Stratigraphic range
222:lithostratigraphic
145:52.6354°N 3.9071°W
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215:Garnedd-Wen Beds
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150:52.6354; -3.9071
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69:Abercorris Group
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48:Tarren y Gesail
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257:Dinas Mawddwy
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314:11 September
312:. Retrieved
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273:Tarren Hills
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193:Type section
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229:rock strata
148: /
123:Coordinates
384:Categories
287:References
279:, west of
277:Bala Fault
249:greywackes
245:sandstones
241:siltstones
219:Ordovician
202:Garneddwen
133:52°38′07″N
34:Hirnantian
267:Geography
237:mudstones
233:Mid Wales
225:formation
198:Named for
165:Mid Wales
136:3°54′26″W
111:Sandstone
92:Lithology
84:Thickness
60:Formation
217:) is an
117:Location
101:Mudstone
74:Overlies
171:Country
97:Primary
66:Unit of
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179:Extent
161:Region
261:Tywyn
231:) in
183:Tywyn
174:Wales
107:Other
364:ISBN
337:ISBN
316:2019
251:and
209:The
56:Type
185:to
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