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Chondrites are stony meteorites that have not been modified due to melting or differentiation of the parent body. In other words, these rocks are roughly indicative of what was formed over 4.5 billion years ago at the formation of the solar system. Equilibrated chondrites refers to those which have become essentially homogeneous in mineral composition due to thermal metamorphism. Small chondrules are often no longer recognizable.
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What is the mean density of a meteor?
They're probably all slightly different, but the various classes of meteorites will have different densities. Most of them are stony meteorites, but a few are metallic, and some are chondrites.
What are the different kinds of meteors?
There are three main types of meteors: iron, stony-iron, and stony. Iron meteors are primarily composed of iron and nickel. Stony-iron meteors have roughly equal amounts of rock and iron-nickel. Stony meteors are made up of silicates and other minerals.
What are the three types of asteroids?
A meteoroid which reaches the ground is called a meteorite. A small number of meteorites have been found which scientists believe originated on the Moon or Mars. The composition of meteorites gives us valuable information about the universe. Meteorites typically fall into one of five categories.IronsThese meteorites are made of a crystalline iron-nickel alloy that resembles the outer core of the earth. Similar in structure to some asteroids (type M), 5.7% of meteorites are irons.Stony-IronsThese meteorites are mixtures of iron-nickel alloy and non-metallic mineral matter. Scientists believe they are like the material which would be found where the Earth's core meets the mantle. 1.5% of meteorite falls are stony irons.Stony MeteoritesThere are three subclasses of stony meteorites:Chondrites: These meteorites are the most numerous, comprising 85.7% of all meteorites found. They are characterized by chondrules: small (average diameter of 1 millimeter) spheres of formerly melted minerals that have melded with other minerals to form a solid rock. Chondrites are believed to be among the oldest rocks in the solar system and are similar in composition to the mantles and crusts of earth and the other terrestrial planets.Carbonaceous Chondrites: These meteorites are very rare and contain elemental carbon, the basic building block for life on earth.Achondrites: Stony meteorites without chondrules, representing about 7.1% of meteorites. Scientists believe that some of these meteorites originate on the surface of the Moon or Mars.From http://www.odec.ca/projects/2006/jauc6s2/kinds.htm
A rock from space that hits the earth is called a?
Space rocks floating through the sky are called meteoroids. When they are passing through the Earth's atmosphere and are heated to incandescence, they are called "meteors". If they crash to Earth, they are called "meteorites". Not all meteors survive to become meteorites. Many meteors burn up completely in the Earth's atmosphere.
How can one identify meteorites?
Meteorites can be identified by their dark, often blackened exterior, as well as their high density and magnetic properties. They may also have a fusion crust, which is a thin, smooth layer caused by the intense heat of entering Earth's atmosphere. Additionally, meteorites may contain unique minerals not typically found on Earth.
What is a name of a meteorite?
Meteorites are named according to their composition as ordinary chondrites, carbonaceous chondrites, achondrites, iron meteorites, and stony-irons.
What are the two types of stony meteorites?
Chondrites and Achondrites
What are the sub types of stony meteorites?
Chondrites and Achondrites.
What has the author Derek W G Sears written?
Derek W. G. Sears has written: 'The origin of chondrules and chondrites' -- subject(s): Chondrites (Meteorites), Chondrules
What has the author A Bischoff written?
A. Bischoff has written: 'Catalog of Al-rich chondrules, inclusions, and fragments in ordinary chondrites' -- subject(s): Catalogs and collections, Chondrites (Meteorites), Chondrules
Do Carbonaceous chondrites contain simple amino acids?
Yes
What are chondrites?
A common type of meteorite that contains chondrules. Chondrites come from asteroids that did not melt when formed and are designated as H, L, LL, E, or C depending on chemical compositions. The H, L, and LL types are called ordinary chondrites. The L chondrites are composed of silicate minerals (mostly olivine and pyroxene, but feldspar as well), metallic nickel-iron, and iron sulfide (called troilite). Most L chondrites are severely shocked-damaged, probably by a large impact on the asteroid in which they formed. The C (or carbonaceous) chondrites are the most primitive meteorites. They contain water-bearing minerals and carbon compounds including a variety of organic molecules such as amino acids.For the source and more detailed information concerning your request, click on the related links section (Answers.com) indicated below.
What is equilibrated phenol?
Equilibrated phenol is phenol that has been mixed with an appropriate buffer solution to maintain a specific pH. This helps to stabilize the phenol solution and make it suitable for various biological applications, such as DNA extraction and purification.
What is true of the amino acids that might have been delivered to Earth within carbonaceous chondrites?
The proportion of the amino acids are similar to those produced in the Miller-Urey experiment.
What are 3 main types of meteoroids?
stony - rocksmetallic - a nickel iron alloycarbonaceous chondrites - contain large amounts of organic chemicals
Meteorite containing more stone than iron?
Chondrites are a type of meteorite that are composed mostly of rock and minerals, with very little iron-nickel content. These meteorites are some of the most common types found on Earth and are believed to be remnants of the early solar system. Chondrites can provide valuable insights into the formation and evolution of our solar system.
What is the mean density of a meteor?
They're probably all slightly different, but the various classes of meteorites will have different densities. Most of them are stony meteorites, but a few are metallic, and some are chondrites.
