Tuesday, July 21, 2015

Stratigraphy

Stratigraphy is a branch of geology which studies rock layers and layering (stratification). It is primarily used in the study of sedimentary and layered volcanic rocks. Stratigraphy includes two related subfields: lithologic stratigraphy or lithostratigraphy, and biologic stratigraphy or biostratigraphy.

File:Quebrada de Cafayate, Salta (Argentina).jpg
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