Subject ASC0003tzt

The geological magazine, or, Monthly journal of geology.
n.s., decade 4, v. 5 (1898), Page 219 (1864)
Smithsonian Libraries
BHL Page 30745772

Keywords

fault llanberis railway purple slate slate green slate slickensides fault conglomerate grit geology rock stone layers soil numbers circles symbols aeration layer fold strata cutting purple green slickenside

Contributors

Species