Chondrite
Chondrites are stony meteorites that have not been modified due to melting or differentiation of the parent body.
Chondrite
Related Category: Astronomy: General
see meteorite.
More on Chondrite
Meteorite - meteor that survives the intense heat of atmospheric friction and reaches the earth's surface.
Chondrites are divided into 3 classes, ordinary, carbonaceous, and enstatite, which are further divided into groups, 12 in all.
Chondrite Meteorite
This was collected from the Allan Hills in Antarctica. Meteorites are bits of rock that are captured by a planet's gravity and pulled to the surface.
Carbonaceous Chondrite:
Carbonaceous chondrite is any stony meteorite or asteroid containing material associated with life (e.g., hydrocarbons, amino acids, and forms resembling microscopic fossils) and for which some researchers have postulated an ...
Chondrite: An abundant class of stony meteorites with chemical compositions similar to that of the Sun and characterized by the presence of chondrules (see definition below).
Chondrite. by far the largest number of meteorites fall into this class, similar in composition to the mantles and crusts of the terrestrial planets ...
chondrite
a stony meteorite containing small, round, silicate granules called chondrules
chromosphere ...
Chondrite
a meteorite containing chondrules and other components produced in the solar nebula.
Chondrule
small, glassy spheres commonly found in meteorites.
chondrite: A stony meteorite that contains chondrules.
chondrule: Round, glassy body in some stony meteorites; believed to have solidified very quickly from molten drops of silicate material.
Chondrite - A meteorite containing chondrules
Chondrule - A small, spherical body embedded in a meteorite. Chondrules are composed of iron, aluminum, and magnesium silicate rock ...
Chondrite
A stony meteorite usually characterized by the presence of chondrules (q.v.). (Type I carbonaceous chondrites contain no chondrules.)
Chondrules ...
Chondrites obviously differ from one another in several important respects. As has been pointed out, they vary in the extent to which they have undergone thermal metamorphism.
Chondrites stony meteorites - 4.55 billion years old (from the formation of the ) Carbonaceous Chondrites Achondrites (7.1%): stony meteorites with chunks of differentiated matter that has melted and recrystallized ...
Chondrites also contain small amounts of organic matter, including amino acids, and presolar grains. Chondrites are typically about 4.
Chondrite
A meteorite that contains chondrules.
Chondrule
Small, glassy spheres commonly found in meteorites.
chondrite - (n.)
A type of stony meteorite that contains numerous small spherules of silicate (silica, silicon dioxide) minerals. A subset of this type of meteorites, the carbonaceous chondrites, contains several per cent organic carbon.
Chondrites (stony meteorites) characterized by the presence of carbon compounds. They are the most primitive samples of matter in the Solar System. [H76]
Carina ...
Porous chondrite interplanetary dust particle. Courtesy of E.K. Jessberger, Institut für Planetologie, Münster, Germany, and Don Brownlee, University of Washington, Seattle ...
Carbonaceous Chondrite
A meteorite with embedded pebble-sized granules that contain significant quantities of organic (complex carbon-rich) matter.
Cassegrain telescope ...
Carbonaceous Chondrite
The stony meteorites (chondrites) are the most common, iron meteorites are composed largely of iron and nickel, ...
carbonaceous chondrites (NASA Thesaurus) A group name for friable, dull-black, chondritic stoney meteorites, characterized by the presence of hydrated clay type silicate minerals, ...
chondrite A meteoritic stone characterized by small rounded grains or spherules. chopper A device used to interrupt the path of radiation, as a beam of light, from a single source or to alternate it between two sources. chord 1.
So-called carbonaceous chondrites are especially fertile reservoirs of stardust. Each stardust grain existed before the earth was formed. The meteorites have preserved the previously interstellar stardust grains since that time.
Sawed and polished section of the Leoville meteorite, a carbonaceous chondrite that was found in …[Credit: F. Wlotzka, Max-Planck-Institut für Chemie, Mainz, Ger.] ...
In-situ ion microprobe U-Pb dating of phosphates in H-chondrites. in Proceedings of the 11th Annual W.M. Goldschmidt Conference, Lunar and Planetary Society. PDF abstract
* Valley, John W., William H. Peck, Elizabeth M.
Those of the C1 carbonaceous chondrites resemble solar material with volatile elements partially removed. 3. The terrestrial bulk abundances are inferred from crustal abundances and earth models.
The research team, which includes Jim Cleaves of Carnegie's Geophysical Laboratory, were funded by the NASA Postdoctoral Program and used spectroscopy techniques to purify and analyse varies samples from 11 different carbonaceous chondrites and one ...
One of the rare varieties of these is known as the carbonaceous chondrite, an carbon rich object thought to originate from c-type asteroids. The neat thing about these is that some have been found to contain things like water and amino acids.
A meteorite of the type known as a carbonaceous chondrite, which fell in France on Mar. 15, 1806, and was later examined by Jöns Jakob Berzelius.
Although classified as carbonaceous, Ceres reflects roughly 10 percent of the sunlight that strikes it ("albedo") and so is not as dark as other low-density asteroids called carbonaceous chondrites, which have albedos of around three to five percent.
It is also possible to find unusual isotopes such as magnesium-25, in small samples of material less than a millimetre in diameter, between the grains in the meteorites called carbonaceous chondrites.
Three-quarters of the asteroids visible from earth, including Ceres, belong to the C type, which appear to be related to a class of stony meteorites known as carbonaceous chondrites.
They are similar to carbonaceous chondrite meteorites and exhibit about the same chemical composition as the sun minus its volatiles. About 17% are S-type asteroids, which are brighter, with an albedo of 0.10 to 0.22.
It is similar to the C-type (blackish carbonaceous chondrite) asteroids that exist in the outer asteroid belt.
Comets are icy planetesimals usually from 1 to 50 km across and containing bits of fragile dust resembling carbonaceous chondrite material.
 See also: Meteorite, Meteor, Earth, Solar, Asteroid
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