Nant Wern Ddu: geology & Landscape
Description
Picture: 1
Nant Wern Ddu. Upper Course, rocks, plants, feathers. Flows down to Llwyn On - east side of Cwm Taf Reservoir. November 1971
Ripple marks on ORS boulder, Nant Wern Ddu. 1971
Date: 1971
Picture: 2
Nant Wern Ddu. Upper Course, rocks, plants, feathers. Flows down to Llwyn On - east side of Cwm Taf Reservoir. November 1971
Split river boulder showing core of sparkling mica in dark ORS. Nant Wern Ddu, Brecon Beacons.
Picture: 3
Nant Wern Ddu. Upper Course, rocks, plants, feathers. Flows down to Llwyn On - east side of Cwm Taf Reservoir. November 1971
Sharp blocky cleavage of sandstone. Nant Wern Ddu side.
Picture: 4
Nant Wern Ddu. Upper Course, rocks, plants, feathers. Flows down to Llwyn On - east side of Cwm Taf Reservoir. November 1971
Nant Wern Ddu. Stream bed of sandstone, wall shale below Llysiog. 1/7/1971 Plant colonisation of shales easier as more cracks
Date: 01/07/1971
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