Subject ASC0000zz4
The Quarterly journal of the Geological Society of London.
v.58 (1902), Page 427 (1902)
Smithsonian Libraries
BHL Page 41675894
Keywords
rocks diabase bryn llwyd hill jasper cerig mawr geology pillowy diabase SE Anglesey Diabase Geology geological formation cliff Newborough Bryn Llwyd lithology Newborough sand-hills pillowy newborough sand hills jasper interspaces sand hills