volcanic tuff
41Meidob Volcanic Field — The alkaline Meidob volcanic field is a volcanic field at the northeast end of the Darfur volcanic province in western Sudan, adjacent to the Kutum volcanic field. It covers an area of 5000 km² with nearly 700 late Cenozoic vents. The… …
42Mount Edziza volcanic complex — Mount Edziza, one of the main volcanoes of the Mount Edziza volcanic complex Elevation …
43Coso Volcanic Field — A basaltic lava flow that is typical of the process that created the stepped terraces of Coso as it flowed across the landscape, producing a more or less flat surface eroding to a sheer front …
44Mesa Falls Tuff — Mesa Falls ash bed Mesa Falls Tuff Exposed at Rim of Caldera Near Ashton, Ida …
45Bishop Tuff — The Bishop Tuff is located in the Owens Valley, southeast of Mammoth Lakes, California. It is a welded tuff that formed 760,000 years ago as a rhyolitic pyroclastic flow during the eruption that created the Long Valley Caldera.The Bishop Tuff… …
46Borrowdale Volcanic Group — The Borrowdale Volcanic Group is a development of volcanic rocks named after the Borrowdale area of the Lake District, in England. They are late Ordovician in age (roughly 450 million years old). It is thought that they represent the remains of a …
47Bennett Lake Volcanic Complex — Infobox Mountain Name=Bennett Lake Volcanic Complex Photo= Caption= Elevation=1500 m (4900 ft) Location=British Columbia/Yukon, Canada Range=Boundary Ranges, Coast Mountains Prominence = Coordinates = Topographic Type=Caldera Volcanic Arc/Belt=… …
48Cockercombe tuff — is a greenish grey, hard pyroclastic rock, formed by the compression of volcanic ash containing high quantities of chlorite, which gives it its distinctive colour.[1] It is found almost exclusively in the south eastern end of the Quantock… …
49Onepoto (volcanic crater) — Two postcards from around 1910, showing Onepoto domain before it was reclaimed. Onepoto is the name of a volcanic explosion crater (or maar) in North Shore City, New Zealand. It is a part of the Auckland volcanic field. Located near the… …
50welded tuff — Petrol. ignimbrite. * * * rock composed of compacted volcanic ejecta (see tuff). * * * …
