What Is the Origin of Iron Meteorites

question 143

Multiple Choice

What is the origin of iron meteorites?

• A) Since they are iron, they must have been produced within the nearby supernova which that exploded 4.6 billion years ago and caused the collapse which resulted in our solar nebula.
• B) Since iron has a high condensation temperature, theyse must have been formed in orbits very close to the sun. They were probably drawn outward by the pull of the Jovian planets when they were in the inner solar system (Nice model).
• C) Iron is formed in various chemical reactions, but only at very low temperatures. So these meteoroids must have been formed in the outer solar system and drifted toward the Sun along with the Jovian planets.
• D) They came from the core of an asteroid which had differentiated due to the heat of radioactive materials within it.

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