relict water

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• Relict Gull — Taxobox name = Relict Gull status = VU | status system = IUCN3.1 trend = down regnum = Animalia phylum = Chordata classis = Aves ordo = Charadriiformes familia = Laridae genus = Ichthyaetus species = I. relictus binomial = Ichthyaetus relictus… …   Wikipedia

• Relict dace — Taxobox | name = Relict dace regnum = Animalia phylum = Chordata classis = Actinopterygii ordo = Cypriniformes familia = Cyprinidae genus = Relictus species = R. solitarius binomial = Relictus solitarius binomial authority = Hubbs Miller, 1972The …   Wikipedia

• relict cave —    Abandoned, inactive cave segment, left when the water that formed it is diverted elsewhere, normally due to rejuvenation, continuing cave development and increasing karstic maturity. Relict unmodified phreatic passage segments are abandoned in …   Lexicon of Cave and Karst Terminology

• Mechelen-Zuid Water Tower — Coordinates: 51°0′39.86″N 4°27′47.40″E / 51.0110722°N 4.463167°E / …   Wikipedia

• marine relict —    An animal whose presently extinct ancestors lived in salt water but became adapted to life in fresh water when an area formerly covered by the sea became dry land [23] …   Lexicon of Cave and Karst Terminology

• continental landform — ▪ geology Introduction       any conspicuous topographic feature on the largest land areas of the Earth. Familiar examples are mountains (including volcanic (volcanism) cones), plateaus, and valleys. (The term landform also can be applied to… …   Universalium

• valley — valleylike, adj. /val ee/, n., pl. valleys. 1. an elongated depression between uplands, hills, or mountains, esp. one following the course of a stream. 2. an extensive, more or less flat, and relatively low region drained by a great river system …   Universalium

• List of endangered animal species — This is a list of endangered animal species according to the World Conservation Union (IUCN) Red List. The list includes endangered species of the kingdom Animalia. NOTOC A* Acheilognathus elongatus * Acipenser Endangered * Acrocephalus… …   Wikipedia

• sedimentary rock — Rock formed at or near the Earth s surface by the accumulation and lithification of fragments of preexisting rocks or by precipitation from solution at normal surface temperatures. Sedimentary rocks can be formed only where sediments are… …   Universalium

• Chad Basin — The Chad Basin, also known as the Lake Chad Basin, is a large lowland area in north central Africa. In all directions from the center of this area the elevation changes are gentle. The Chad Basin is an endorheic (closed) basin its water does not… …   Wikipedia

• Sahara — Saharan, Saharian, adj. /seuh har euh, hair euh, hahr euh/, n. 1. a desert in N Africa, extending from the Atlantic to the Nile valley. ab. 3,500,000 sq. mi. (9,065,000 sq. km). 2. any arid waste. * * * Largest desert in the world, encompassing… …   Universalium