Subject ASC0003ti7
The geological magazine, or, Monthly journal of geology.
Decade 3:v. 9 (1892), Page 344 (1864)
Smithsonian Libraries
BHL Page 30858426
Keywords
geology Devonian rocks Paleozoic Devon South Devon Dartmoor granite diabasae dolerite igneous quartz schists A.R. Hunt map position dartmoor south devon schist block crystal trawl english channel channel trail maps geography cartography Green rock POSITIONS OF ROCKS IN THE ENGLISH CHANNEL