saltpeter deposit

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• Humberstone and Santa Laura Saltpeter Works — Infobox World Heritage Site WHS = Humberstone and Santa Laura Saltpeter Works State Party = CHI Type = Cultural Criteria = ii, iii, iv ID = 1178 Region = Latin America and the Caribbean Year = 2005 Session = 29th Danger = 2005 Link =… …   Wikipedia

• Potash — For other uses, see Potash (disambiguation). Potash Potash /ˈpɒtæʃ/ is the common name for various mined and manufactured salts that contain potassium in water soluble form.[1] In some rare cases, pota …   Wikipedia

• Susquehanna River — Coordinates: 39°32′35″N 76°04′32″W / 39.54306°N 76.07556°W / 39.54306; 76.07556 …   Wikipedia

• Chemical Bank — This article is about the former bank headquartered in New York. For Chemical Bank in Michigan, see Chemical Financial Corporation. Chemical Bank Chemical Bank s logo from after their 1991 acquisition of Manufacturers Hanover until its purchase… …   Wikipedia

• Chesapeake Bay — Coordinates: 36°59′45″N 75°57′34″W / 36.99583°N 75.95944°W / 36.99583; 75.95944 …   Wikipedia

• Alum Cave Trail — Infobox Hiking trail Name=Alum Cave Trail Photo=Alum Cave Bluffs Trailhead.jpg Caption=The trailhead of the Alum Cave Trail Location=Great Smoky Mountains National Park, Tennessee, United States Length=5.0 mi; 8.05 km Start/End Points=Mount Le… …   Wikipedia

• Pisagua, Chile — Pisagua is a Chilean port on the Pacific Ocean, located in Huara comuna (municipality), in Iquique Region, northern Chile. In 2007, the new province of El Tamarugal was established and the comuna of Huara, previously within the province of… …   Wikipedia

• Caliche — Forest on San Miguel Island. Caliche is a sedimentary rock, a hardened deposit of calcium carbonate. This calcium carbonate cements together other materials, including gravel, sand, clay, and silt. It is found in aridisol and mollisol soil orders …   Wikipedia

• Guano — (from the Quechua wanu , via Spanish) is the feces of seabirds, bats, and seals. [cite web|url=http://www.wisegeek.com/what is guano.htm|title=What is Guano?|accessdate=2006 11 09] Guano manure is an effective fertilizer and gunpowder ingredient… …   Wikipedia

• Muslim Agricultural Revolution — The Islamic Golden Age from the 8th century to the 13th century witnessed a fundamental transformation in agriculture known as the Arab Agricultural Revolution, Medieval Green Revolution, [A. M. Watson (1981), A Medieval Green Revolution: New… …   Wikipedia

• Bismuth — (pronEng|ˈbɪzməθ) is a chemical element that has the symbol Bi and atomic number 83. This heavy, brittle, white crystalline trivalent poor metal has a pink tinge and chemically resembles arsenic and antimony. Of all the metals, it is the most… …   Wikipedia