concentric dike

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• Dike (geology) — Banded gneiss with dike of granite orthogneiss. An intrusion (Notch Peak monzonite) inter fingers (partly as a dike …   Wikipedia

• Ring dike — A ring dike or ring dyke in geology refers to an intrusive igneous body. Their chemistry, petrology and field appearance precisely match those of dikes or sill, but their concentric or radial geometric distribution around a centre of volcanic… …   Wikipedia

• igneous rock — Any of various crystalline or glassy, noncrystalline rocks formed by the cooling and solidification of molten earth material (magma). Igneous rocks comprise one of the three principal classes of rocks, the others being metamorphic and sedimentary …   Universalium

• Mono–Inyo Craters — Coordinates: 37°53′N 119°0′W / 37.883°N 119°W / 37.883; 119 …   Wikipedia

• Everglades — is also the name of a city in Collier County, Florida.The Everglades are a subtropical wetland located in the southern portion of the U.S. state of Florida, comprising the southern half of a large watershed. The system begins near Orlando with… …   Wikipedia

• Moat — For information on the moat of a tropical cyclone, see eye (cyclone). For the gunman, see Raoul Moat. The moated manor house of Baddesley Clinton in Warwickshire, England A moat is a deep, broad ditch, either dry or filled with water, that… …   Wikipedia

• History of Vietnam — The history of Vietnam begins around 2,700 years ago. Successive dynasties based in China ruled Vietnam directly for most of the period from 111 BC until 938 when Vietnam regained its independence.cite book |last=Kenny |first=Henry J. |year=2002… …   Wikipedia

• Leucite — is a rock forming mineral composed of potassium and aluminium tectosilicate K [AlSi2O6] . Crystals have the form of cubic icositetrahedra but, as first observed by Sir David Brewster in 1821, they are not optically isotropic, and are therefore… …   Wikipedia

• Far North Province — Geobox|Province name = Far North Province country = Cameroon country capital = Maroua map caption = Location of Far North Province within Cameroon coordinates type = adm1st lat d = 11 |lat m = 00 |lat NS = N long d = 14 |long m = 30 |long EW = E… …   Wikipedia

• United Kingdom — a kingdom in NW Europe, consisting of Great Britain and Northern Ireland: formerly comprising Great Britain and Ireland 1801 1922. 58,610,182; 94,242 sq. mi. (244,100 sq. km). Cap.: London. Abbr.: U.K. Official name, United Kingdom of Great… …   Universalium

• Far North Region (Cameroon) — Coordinates: 11°00′N 14°30′E / 11°N 14.5°E / 11; 14.5 …   Wikipedia