- pre-Silurian
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adj., n.
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Universalium. 2010.
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Universalium. 2010.
pre-Silurian — adj., n … Useful english dictionary
Taconic orogeny — The Taconic orogeny was a great mountain building period that perhaps had the greatest overall effect on the geologic structure of basement rocks within the New York Bight region. The effects of this orogeny are most apparent throughout New… … Wikipedia
Докембрий — древнейшие толщи земной коры и время, соответствующее их образованию и составляющее около 6/7 геологической истории Земли. Геологическая история Д. долго оставалась непознанной, несмотря на то, что в породах Д. давно были обнаружены… … Большая советская энциклопедия
Vitrinite — is one of the primary components of coals and most sedimentary kerogens. Vitrinite is a type of maceral, where macerals are organic components of coal analogous to the minerals of rocks. Vitrinite has a shiny appearance resembling glass… … Wikipedia
geochronology — geochronologic /jee oh kron l oj ik/, geochronological, adj. geochronologist, n. /jee oh kreuh nol euh jee/, n. the chronology of the earth, as based on both absolute and relative methods of age determination. [1890 95; GEO + CHRONOLOGY] * * *… … Universalium
Life Sciences — ▪ 2009 Introduction Zoology In 2008 several zoological studies provided new insights into how species life history traits (such as the timing of reproduction or the length of life of adult individuals) are derived in part as responses to… … Universalium
Chelicerata — Temporal range: 445–0 Ma … Wikipedia
Ordovician — Period 488.3–443.7 million years ago … Wikipedia
Arthropod — Temporal range: 540–0 Ma … Wikipedia
Wales — This article is about the country. For other uses, see Wales (disambiguation) … Wikipedia