continental detritus

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• GEOGRAPHICAL SURVEY — Names The name Ereẓ Israel (the Land of Israel) designates the land which, according to the Bible was promised as an inheritance to the Israelite tribes. In the course of time it came to be regarded first by the Jews and then also by the… …   Encyclopedia of Judaism

• Extinction Crétacé-Tertiaire — Badlands près de Drumheller, Alberta, où l érosion a découvert à l air libre la limite K–T …   Wikipédia en Français

• 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

• Cretaceous–Tertiary extinction event — Artist s rendering of bolide impact Badlands nea …   Wikipedia

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• community ecology — Introduction       study of the organization and functioning of communities (community), which are assemblages of interacting populations of the species living within a particular area or habitat.       As populations of species interact with one …   Universalium

• Superior craton — in the west. The western margin extends from northern Minnesota through eastern Manitoba to northwestern Ontario.The formation of the Superior craton is best explained within the context of 2.72 2.68 Ga accretion of small continental plates and… …   Wikipedia

• Devonian Period — Interval of geologic time from 417 to 354 million years ago; it was the fourth period of the Paleozoic Era. During the Devonian, a giant continent was situated in the Southern Hemisphere (see Gondwana), and other landmasses were located in the… …   Universalium

• Triassic — Geological period from=251 middle=225 to=199 o2=16 co2=1750 temp=17The Triassic is a geologic period and system that extends from about 251 to 199 Ma (million years ago). As the first period of the Mesozoic Era, the Triassic follows the Permian… …   Wikipedia

• Pelagic fish — A school of large pelagic predator fish (giant trevally) sizing up a school of small pelagic prey fish (anchovies) Pelagic fish live near the surface or in the water column of coastal, ocean and lake waters, but not on the bottom of the sea or… …   Wikipedia

• Cretaceous — Period 145.5–65.5 million years ago …   Wikipedia