|
Title: A rock outcrop exposes a layer of obsidian overlain by volcanic ash and a layer with fragments of la Post by: drelog on Dec 8, 2015 A rock outcrop exposes a layer of obsidian overlain by volcanic ash and a layer with fragments of lapilli. What rock composition and eruptive type fits this description?
A) rhyolite erupted in violent pyroclastic eruptions B) basalt erupted from a cinder cone C) basalt flows and interbedded andesite deposited on a shield volcano D) andesite and basalt erupted from a stratovolcano Title: Re: A rock outcrop exposes a layer of obsidian overlain by volcanic ash and a layer with fragments o Post by: Pulsa on Dec 11, 2015 Content hidden
Title: Re: A rock outcrop exposes a layer of obsidian overlain by volcanic ash and a layer with fragments of la Post by: drelog on Dec 15, 2015 Double checked your answer with my friend, it's right :D
|