Subject ASC0002a7i
The Quarterly journal of the Geological Society of London.
v.44 (1888), Page 519 (1888)
Smithsonian Libraries
BHL Page 37060066
Keywords
view porth llanlliana porth llanlliana east quartz knob purple shale great conglomerate fine grey fault rocks cliffs geology Conglomerates cliff erosion port llanlliana Porth Llanlliana Porth Llanlleiana Wales strata