Subject ASC0003swd

The geological magazine, or, Monthly journal of geology.
Decade 2:v. 7 (1880), Page 437 (1880)
Smithsonian Libraries
BHL Page 30758100

Keywords

whin sill teesdale sedimentary bed basalt layer section parallel line geology sedimentary beds Whin Sill of Teesdale sedimentary bed diagram

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