Stockwork — In geology, a stockwork is a complex system of structurally controlled or randomly oriented veins. Stockworks are common in many ore deposit types and especially notable in greisens. They are also referred to as stringer zones … Wikipedia
stockwork — ˈ ̷ ̷ˌ ̷ ̷ noun Etymology: part translation of German stockwerk, from stock stick, stump, trunk of a tree (from Old High German stoc) + werk work more at stock 1. : a system of working in ore when it lies not in strata or veins but in solid… … Useful english dictionary
Volcanogenic massive sulfide ore deposit — Volcanogentic massive sulfide ore deposit at Kidd Mine, Timmins, Ontario, Canada, formed 2.4 billion years ago on an ancient seafloor. Volcanogenic massive sulfide ore deposits (VMS ) are a type of metal sulfide ore deposit, mainly Cu Zn Pb which … Wikipedia
Hemerdon Mine — pits near Lee Moor. The mine, out of operation since 1944, hosts one of the largest tungsten and tin deposits in the world. [ [http://www.mineweb.com/mineweb/view/mineweb/en/page674?oid=41265 sn=Detail Mineweb Article] ]… … Wikipedia
Штокверк — рудное тело неправильной формы (чаще изометричное), представляющее собой массу г. п., пронизанную густой сетью различно ориентированных прожилков и насыщенную вкрапленностью рудных м лов. Примером Ш. являются тела некоторых м ний Сu, Sn, Mo,… … Геологическая энциклопедия
Ore — For other uses, see Ore (disambiguation). Iron ore (Banded iron formation) … Wikipedia
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
Cowboy — Cowgirl redirects here. For other uses, see Cowgirl (disambiguation). Ranch hand redirects here. For other uses, see Ranch hand (disambiguation). For other uses, see Cowboy (disambiguation) … Wikipedia
History of Colorado — Roxborough State Park East Spanish Peak … Wikipedia
Skarn — is a metamorphic rock that is usually variably colored green or red, occasionally grey, black, brown or white. It usually forms by chemical metasomatism of rocks during metamorphism and in the contact zone of magmatic intrusions like granites… … Wikipedia
