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Vaynor Quarry, Trefechan, Merthyr Tydfil, Wales, UK

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Latitude & Longitude (WGS84): 51° 46' 28'' North , 3° 23' 50'' West
Latitude & Longitude (decimal): 51.77451,-3.39737
UK National Grid Reference:SO036094
Köppen climate type:Cfb : Temperate oceanic climate
Other/historical region names associated with this locality:Mid Glamorgan; Breconshire; Brecknockshire


Following the reorganisation of 1996, the three Unitary Authorities of Merthyr Tydfil, Bridgend and Rhondda Cynon Taff were formed from the administrative county of Mid Glamorgan.

Mid Glamorgan was itself only formed during the 1974 and was previously part of the traditional county of Glamorgan, which dates back to the middle ages, but it also incorporated a very small part of the traditional county of Breconshire.

Mineral specimens from this location may therefore be labeled as coming from Merthyr Tydfil, Mid Glamorgan or Breckonshire depending upon the time they were collected.

Locations now within Merthyr Tydfil, but that were previously part of Glamorganshire are listed seperately within that section.

Mineral List


7 valid minerals.

Regional Geology

This geological map and associated information on rock units at or nearby to the coordinates given for this locality is based on relatively small scale geological maps provided by various national Geological Surveys. This does not necessarily represent the complete geology at this locality but it gives a background for the region in which it is found.

Click on geological units on the map for more information. Click here to view full-screen map on Macrostrat.org

Mississippian
323.2 - 358.9 Ma



ID: 2030431
Dinantian Rocks (Undifferentiated)

Age: Mississippian (323.2 - 358.9 Ma)

Lithology: Limestone with subordinate sandstone and argillaceous rocks

Reference: British Geological Survey. DiGMapGB-625. British Geological Survey ©NERC. [23]

Data and map coding provided by Macrostrat.org, used under Creative Commons Attribution 4.0 License



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