- geologic era
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A subdivision of geologic time that divides an eon into smaller timeframes.
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geologic era
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eră — ÉRĂ, ere, s.f. 1. Perioadă istorică ce începe cu data unui anumit eveniment sau fapt, real sau legendar, de la care se porneşte numărătoarea anilor. 2. Epocă (1). 3. Cea mai mare subdiviziune a timpului geologic. – Din fr. ère, lat. aera. Trimis… … Dicționar Român
Era Cenozoica — Saltar a navegación, búsqueda Eón Era M. años Fanerozoico Cenozoico 65,5 ±0,3 Mesozoico 251,0 ±0,4 Paleozoico 542,0 ±1,0 … Wikipedia Español
Era Críptica — Saltar a navegación, búsqueda Eón Era M. años Hadeico Ímbrico c. 3.850 Nectárico c. 3.920 Grup … Wikipedia Español
Era Eoarcaica — Saltar a navegación, búsqueda Eón Era M. años Fanerozoico 542,0 ±1,0 Proterozoico 2.500 … Wikipedia Español
era — [ir′ə, er′ə; ] also [ ē′rə] n. [LL aera, era, earlier senses, “counters,” “items of account” < pl. of L aes (gen. aeris), copper: see ORE] 1. a system of reckoning time by numbering the years from some important occurrence or given point of… … English World dictionary
Geologic time scale — This clock representation shows some of the major units of geological time and definitive events of Earth history. The Hadean eon represents the time before fossil record of life on Earth; its upper boundary is now regarded as 4.0 Ga.[1] Other… … Wikipedia
Geologic record — The layer cake like appearance of concordant strata laid down over hundreds of thousands of years … Wikipedia
era — /ear euh, er euh/, n. 1. a period of time marked by distinctive character, events, etc.: The use of steam for power marked the beginning of an era. 2. the period of time to which anything belongs or is to be assigned: She was born in the era of… … Universalium
ERA — 1. Also, era Baseball. See earned run average. 2. Emergency Relief Administration. 3. Equal Rights Amendment: proposed 27th amendment to the U.S. Constitution that would prohibit discrimination on the basis of sex. * * * I Very long span of… … Universalium
Geologic province — A geologic or geomorphic province is a spatial entity with common geologic/geomorphic attributes. A province may include a single dominant structural element such as a basin or a fold belt, or a number of contiguous related elements. Adjoining… … Wikipedia
