Cross diatreme — Elevation 2,200 m (7,218 ft) Location Location … Wikipedia
HP diatreme — Infobox Mountain Name=HP diatreme Photo= Caption= Elevation=Unit m|2400|0 Location=British Columbia, Canada Range=Rocky Mountains Prominence = Coordinates =coord|51|41|30|N|116|57|00|W|type:mountain region:CA Topographic Type=Diatreme Volcanic… … Wikipedia
Tuff — (from the Italian tufo ) is a type of rock consisting of consolidated volcanic ash ejected from vents during a volcanic eruption. Tuff should not be confused with tufa , another type of rock. Volcanic ashThe products of a volcanic eruption are… … Wikipedia
Navajo Volcanic Field — Karte des Navajo Volcanic Field Das Navajo Volcanic Field, in der Navajo Sprache tsézhiin ‘íí ‘áhí («schwarze herausragende Felsen»), ist ein rund 30.000 Quadratkilometer großes Vulkanfeld[1] im als Four Corners bezeichneten Grenzgebiet der vier… … Deutsch Wikipedia
Australia — /aw strayl yeuh/, n. 1. a continent SE of Asia, between the Indian and the Pacific oceans. 18,438,824; 2,948,366 sq. mi. (7,636,270 sq. km). 2. Commonwealth of, a member of the Commonwealth of Nations, consisting of the federated states and… … Universalium
Breccia — (pronEng|ˈbrɛtʃiə, ˈbrɛʃiə, it. breach) is a rock composed of angular fragments of several minerals or rocks in a matrix, that is a cementing material, that may be similar or different in composition to the fragments. A breccia may have a variety … Wikipedia
Ultramafic rock — Ultramafic (also referred to as ultrabasic) rocks are igneous and meta igneous rocks with very low silica content (less than 45%), generally >18% MgO, high FeO, low potassium, and are composed of usually greater than 90% mafic minerals (dark… … Wikipedia
Shiprock — Infobox Mountain Name = Shiprock Photo = Shiprock.snodgrass3.jpg Caption = Shiprock Elevation = convert|7177|ft|m|0|lk=on Location = New Mexico, USA Prominence = convert|1583|ft|m|0|abbr=on Coordinates = coord|36|41|16|N|108|50|12|W|type:mountain … Wikipedia
Galactic Milieu Series — A family tree of the main characters of the Galactic Milieu series The Galactic Milieu Series of science fiction novels by Julian May is the sequel (and prequel) to her Saga of Pliocene Exile. It comprises four novels: Intervention, Jack the… … Wikipedia
