volcanic+tufa
11Tufa — Tu fa, [It. fufo soft, sandy stone, L. tofus, tophus. Cf. {Tofus}, {Toph}, and {Tophin}.] (Min.) (a) A soft or porous stone formed by depositions from water, usually calcareous; called also {calcareous tufa}. (b) A friable volcanic rock or… …
12Tufa — Not to be confused with tuff, a porous volcanic rock. This article is about the geological formation. For the historic Chinese name, see Southern Liang. Tufa columns at Mono Lake, California Tufa is a variety of limestone, formed by the… …
13volcanic rock — noun extrusive igneous rock solidified near or on the surface of the Earth • Hypernyms: ↑igneous rock • Hyponyms: ↑agglomerate, ↑amygdaloid, ↑dacite, ↑basalt, ↑volcanic glass, ↑lava, ↑ …
14tufa — noun a) the calcareous deposit of lime found near hot springs b) the volcanic rock tuff …
15tufa — n. porous calcareous rock deposited by springs, etc.; rock composed of fine volcanic detritus. ♦ tufaceous, a …
16calcareous tufa — Tufa Tu fa, [It. fufo soft, sandy stone, L. tofus, tophus. Cf. {Tofus}, {Toph}, and {Tophin}.] (Min.) (a) A soft or porous stone formed by depositions from water, usually calcareous; called also {calcareous tufa}. (b) A friable volcanic rock or… …
17Mount Edziza volcanic complex — Mount Edziza, one of the main volcanoes of the Mount Edziza volcanic complex Elevation …
18Mono Lake Tufa State Reserve — Mono Lake s South Tufa a …
19Lassen Volcanic National Park — IUCN Category II (National Park) …
20trap-tufa — n.; (also trap tuff) (Geol.) Volcanic tuff, volcanic grit …