evaporite deposits
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Evaporite — Cobble encrusted with halite evaporated from the Dead Sea, Israel. Evaporite ( / … Wikipedia
evaporite — /i vap euh ruyt /, n. Geol. any sedimentary rock, as gypsum or rock salt, formed by precipitation from evaporating seawater. [1920 25; EVAPOR(ATION) + ITE1] * * * Any of a variety of minerals found in sedimentary deposits of soluble salts that… … Universalium
Uranium ore deposits — are ore deposits which constitute economically recoverable concentrations of uranium within the Earth s crust. DistributionThe distribution of uranium ore deposits is widespread, with sizeable deposits and mines in Australia (40% of EDR [cite… … 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
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
Silurian Period — Interval of geologic time, 443–417 million years ago. The third period of the Paleozoic Era, the Silurian follows the Ordovician Period and precedes the Devonian. It marks the first appearance of land plants and jawed fishes. The continents were… … Universalium
Desert — Not to be confused with dessert. This article is about dry terrain. For the act of abandoning or withdrawing support, see desertion. For other uses, see Desert (disambiguation) … Wikipedia
Ordovician Period — Interval of geologic time, 490–443 million years ago, the second oldest period of the Paleozoic Era. It follows the Cambrian and precedes the Silurian. During the Ordovician, many of the landmasses were aligned in the tropics. Life was dominated… … Universalium
Permian Basin — ▪ area, Texas, United States also called West Texas Basin large sedimentary basin in western Texas and southeastern New Mexico, U.S., noted for its rich petroleum, natural gas, and potassium deposits. Due to its economic importance, it is one… … Universalium
borate mineral — Borate minerals Borate mineralsany of various naturally occurring compounds of boron and oxygen. Most borate minerals are rare, but some form large deposits that are mined commercially. Borate mineral structures incorporate either… … Universalium
Triassic Period — Interval of geologic time, с 248–206 million years ago, that marks the beginning of the Mesozoic Era. Many new vertebrates emerged during the Triassic, heralding the major changes that were to occur in both terrestrial and marine life forms… … Universalium
