Subject ASC0003svz

The geological magazine, or, Monthly journal of geology.
Decade 2:v.8 (1881), Page 197 (1881)
Harvard University, Museum of Comparative Zoology, Ernst Mayr Library
BHL Page 32519454

Keywords

quarry section layer strata Wales geology fault slate nebo amlwch black joint vein grit conglomerate cross section

Contributors

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