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  • PhD Member
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Explain how chondrules form and how we know they exist.

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Marked as best answer by SmithC

  • PhD Member
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Most types of chondrites also contain chondrules, small round bits of glassy rock only a few millimeters across. To be glassy rather than crystalline, the chondrules must have cooled from a molten state quickly, within a few hours. One hypothesis is that chondrules are bits of matter from the inner part of the solar nebula, near the Sun, that were blown outward by winds or jets to cooler parts of the nebula where they condensed and were later incorporated into larger rocks. Another hypothesis is that the chondrules were once solid bits of matter that were melted by shock waves spreading through the solar nebula and then resolidified.

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  • PhD Member
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Right on time. Thanks a bunch.