Ejecta

Ejecta

Ejecta can mean:
*In volcanology, particles that came out of a volcanic vent, traveled through the air or under water, and fell back on the ground surface or on the ocean floor. Ejecta can consist of:
*# Juvenile particles - (fragmented magma and free crystals)
*# Cognate or accessory particles - older volcanic rocks from the same volcano
*# Accidental particles - derived from the rocks under the volcano.
*In planetary geology, the debris that is ejected during the formation of an impact crater.
*In astrophysics, material expelled in a stellar explosion. [ [http://www.physics.umanitoba.ca/~samar/G21/g21.pdf The Plerionic Supernova Remnant G21.5-0.9: In and Out] ] [ [http://hera.ph1.uni-koeln.de/~heintzma/X_Ray_Obs/ASCA.htm (a detection by) The Advanced Satellite for Cosmology and Astrophysics (ASCA) http://heasarc.gsfc.nasa.gov/docs/asca/asca2.html] ]
* In firearms ballistics, everything expelled from a gun, including the bullet, propellant, sabot, wad, etc. [cite web |url=http://www.chuckhawks.com/shotgun_recoil.htm |title=Controlling shotgun recoil |author=Randy Wakeman |publisher=Chuck Hawks]

References


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  • éjecta — ● éjecta nom masculin pluriel (latin ejecta, de ejicere, sortir) Produits des éruptions volcaniques. Synonyme de excreta. ● éjecta (synonymes) nom masculin pluriel (latin ejecta, de ejicere, sortir) Synonymes : excreta …   Encyclopédie Universelle

  • Ejecta — Éjecta Traduction à relire Piroclasto → …   Wikipédia en Français

  • Ejecta — E*jec ta, n. pl. [L., neut. pl. of ejectus cast out. See {Eject}.] Matter ejected; material thrown out; as, the ejecta of a volcano; the ejecta, or excreta, of the body. [Webster 1913 Suppl.] …   The Collaborative International Dictionary of English

  • ejecta — ejectá vb., ind. prez. 1 sg. ejectéz, 3 sg. şi pl. ejecteáză Trimis de siveco, 10.08.2004. Sursa: Dicţionar ortografic  A EJECT//Á ejectaéz tranz. (lichide, obiecte) A face să iasă; a elimina; a evacua /<fr. éj …   Dicționar Român

  • ejecta — [ē jek′tə] pl.n. [ModL < neut. pl. of ejectus] ejected matter, as from the body, a volcano, etc …   English World dictionary

  • Éjecta — Éjectas : cendres, lapilli et bombes au volcan de Capelinhos, Faial, Açores. Les éjectas, téphras ou pyroclastes (du grec πυρóκλαστος formé de pyro feu et klastos fragment) sont les fragments de roche solide expulsés dans l’air pendant… …   Wikipédia en Français

  • Ejecta blanket — An ejecta blanket is a generally symmetrical apron of ejecta that surrounds a crater; it is layered thickly at the crater’s rim and thin to discontinuous at the blanket’s outer edge.cite web url=http://www.daviddarling.info/encyclopedia/E/ejecta… …   Wikipedia

  • Ejecta Blanket —    The rough, hilly area surrounding an impact crater. It is composed of the ejecta that has fallen back to the surface, and usually extends one to three crater radii from the rim of the crater …   The writer's dictionary of science fiction, fantasy, horror and mythology

  • ejecta — noun plural but singular or plural in construction Etymology: New Latin, from Latin, neuter plural of ejectus Date: 1886 material thrown out (as from a volcano) …   New Collegiate Dictionary

  • Ejecta — Als Ejektadecke bezeichnet man eine Ablagerung von Auswurfmaterialien um Einschlagkrater oder einen Vulkan. Entstehung Beim Einschlag (Impakt) eines Himmelskörpers auf der Oberfläche eines anderen, zum Beispiel den Einschlag eines Meteoriten… …   Deutsch Wikipedia

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