Subject ASC0002jrr
The Quarterly journal of the Geological Society of London.
v.25 (1869), Page 86 (1869)
Smithsonian Libraries
BHL Page 36102931
Keywords
landscape seabed fossiliferous gravels thanet sands chalk pluvial origin Cyrena section layer strata erith pit cyrena sand bed Geology Cyrena sand bed Erith Pit sand bed composition versus depth