Allende meteorite

/ah yen"day/, Astron.
a carbonaceous chondrite meteorite that fell over northern Mexico in 1969: one of the largest recorded falls of a stony meteorite.
[after Pueblito de Allende, village in Chihuahua, Mexico, near where pieces of it were recovered]

* * *

       meteorite that fell as a shower of stones (see meteorite shower) after breaking up in the atmosphere at Chihuahua, Mex., near the village of Pueblito de Allende, in February 1969. More than two tons of meteorite fragments were collected. Fortuitously, the Allende meteorite fell shortly before the first rock samples from the Moon were brought to Earth by Apollo (Apollo program) astronauts, and its pieces were analyzed by many scientists in preparation for handling lunar rocks.

      The Allende meteorite, which is classified as a carbonaceous chondrite, consists of large, irregularly shaped white inclusions and rounded chondrules in a dark matrix. The inclusions are composed of minerals believed to have condensed at high temperatures from a gas having the composition of the Sun, and their time of formation is older than that of any other known solar system material. The inclusions in Allende and other carbonaceous chondrites are thought to be the earliest-formed solids in the solar nebula.

Harry Y. McSween, Jr.
 

* * *


Universalium. 2010.

Look at other dictionaries:

  • Allende meteorite — Meteorite Name= Allende Image caption= Allende fragment Image width= 180px Type= Chondrite Class= Carbonaceous chondrite Group= CV3 Structural classification= Composition= 23.85% total iron Shock= S1 Weathering= Country= Mexico Region= Pueblito… …   Wikipedia

  • Allende (météorite) — Météorite d Allende Fragment d Allende Caractéristiques Type Chondrite Classe Chondrite carbonée …   Wikipédia en Français

  • Allende meteorite — /ah yen day/, Astron. a carbonaceous chondrite meteorite that fell over northern Mexico in 1969: one of the largest recorded falls of a stony meteorite. [after Pueblito de Allende, village in Chihuahua, Mexico, near where pieces of it were… …   Useful english dictionary

  • Allende — is a Spanish word and surname.Allende is the name of:*Salvador Allende, former President of Chile *Isabel Allende, Chilean writer and daughter of Tomás Allende, cousin of Salvador Allende *Isabel Allende (politician), Chilean politician and… …   Wikipedia

  • meteorite — meteoritic /mee tee euh rit ik/, meteoritical, meteorital /mee tee euh ruyt l/, adj. /mee tee euh ruyt /, n. 1. a mass of stone or metal that has reached the earth from outer space; a fallen meteoroid. 2. a meteoroid. [1815 25; METEOR + ITE1] * * …   Universalium

  • Allende — Cette page d’homonymie répertorie les différents sujets et articles partageant un même nom. Sommaire 1 Noms de personnes 2 Noms de lieux 2.1 …   Wikipédia en Français

  • Meteorite — This article is about debris from space that survives impact with the ground. For other uses of Meteor and Meteors , see Meteor (disambiguation). For popular applications, see Falling star. For the fictional superhero in the Marvel Comics… …   Wikipedia

  • Meteorite classification — The ultimate goal of meteorite classification is to group all meteorite specimens that share a common origin on a single, identifiable parent body. This could be a planet, asteroid, Moon, or other current Solar System object, or one that existed… …   Wikipedia

  • Meteorite fall — Witnessed Bolide Meteorite falls, also called observed falls, are those meteorites that were witnessed by people or automated devices as they moved through the atmosphere or hit the Earth, and were subsequently collected. All other meteorites are …   Wikipedia

  • Nininger Meteorite Award — The Nininger Meteorite Award recognizes outstanding student achievement in the “Science of Meteoritics” as embodied by an original research paper.[1] In 1965, Dr. Harvey H. Nininger and Mrs. Addie D. Nininger endowed the Nininger Science of… …   Wikipedia

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”

We are using cookies for the best presentation of our site. Continuing to use this site, you agree with this.