heavy-mineral assemblage

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• loess — loessial, loessal, adj. /loh es, les, lus/, n. a loamy deposit formed by wind, usually yellowish and calcareous, common in the Mississippi Valley and in Europe and Asia. [1825 35; < G Löss < Swiss G lösch loose, slack (sch taken as a dial.… …   Universalium

• Mining in The Gambia — Mining in The Gambia, which is limited to the production of clay, laterite, sand and gravel, silica sand, and zircon, does not play a significant role in the Gambian economy.Omayra Bermúdez Lugo. [http://minerals.usgs.gov/minerals/pubs/country/200… …   Wikipedia

• Mining industry of the Gambia — Mining in The Gambia, which is limited to the production of clay, laterite, sand and gravel, silica sand, and zircon, does not play a significant role in the Gambian economy.[1] Legal framework The Department of State for Trade, Industry, and… …   Wikipedia

• rock — rock1 rockless, adj. rocklike, adj. /rok/, n. 1. a large mass of stone forming a hill, cliff, promontory, or the like. 2. Geol. a. mineral matter of variable composition, consolidated or unconsolidated, assembled in masses or considerable… …   Universalium

• Rock — /rok/, n. a male given name. * * * I In geology, a naturally occurring and coherent aggregate of minerals. The three major classes of rock igneous, sedimentary, and metamorphic are based on the processes that formed them. These three classes are… …   Universalium

• Ilmenite — from Miask, Ilmen Mts, Chelyabinsk Oblast , Southern Urals, Urals Region, Russia. 4.5 x 4.3 x 1.5 cm General Category Oxide mineral …   Wikipedia

• Amphibolite — (pronEng|æmˈfɪbəlaɪt) is the name given to a rock consisting mainly of hornblende amphibole, the use of the term being restricted, however, to metamorphic rocks. The modern terminology for a holocrystalline plutonic igneous rocks composed… …   Wikipedia

• Adam's Bridge — (Tamil: ta. ஆதாம் பாலம் transl|ta|āthām pālam ), also known as Rama s Bridge or Ram Setu (Tamil: ta. இராமர் பாலம் transl|ta|irāmar pālam , Sanskrit: sa. रामसेतु IAST|rāmasetu ) [also spelled Rama Setu , Ram Sethu , Ramasethu and variants.] , is a …   Wikipedia

• Narryer Gneiss Terrane — Stratigraphic range: > 3.3 Ga Satellite image of Jack Hills in the Narryer Gneiss Terrane Type Geological complex Sub units …   Wikipedia

• United States — a republic in the N Western Hemisphere comprising 48 conterminous states, the District of Columbia, and Alaska in North America, and Hawaii in the N Pacific. 267,954,767; conterminous United States, 3,022,387 sq. mi. (7,827,982 sq. km); with… …   Universalium

• Africa — /af ri keuh/, n. 1. a continent S of Europe and between the Atlantic and Indian oceans. 551,000,000; ab. 11,700,000 sq. mi. (30,303,000 sq. km). adj. 2. African. * * * I Second largest continent on Earth. It is bounded by the Mediterranean Sea,… …   Universalium