andesite-dacite

Russia, Khabarovsk territory, mount Shchebenchikha. Andesite-dacite tuff. Cretaceous, cenomanian.

Russia, Khabarovsk territory, mount Shchebenchikha. Light gray andesite-dacites with porphyry plagioclase and hornblende. Very strongly altered. Plagioclase is often replaced by carbonates. Hornblende is opacitized. Cretaceous, cenomanian.