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Concept information

solar system > meteoroid > meteorite > micrometeorite

Preferred term

micrometeorite  

Definition

  • A micrometeorite is a micrometeoroid that has survived entry through the Earth's atmosphere. Usually found on Earth's surface, micrometeorites differ from meteorites in that they are smaller in size, more abundant, and different in composition. The IAU officially defines meteorites as 30 micrometers to 1 meter; micrometeorites are the small end of the range (~submillimeter). They are a subset of cosmic dust, which also includes the smaller interplanetary dust particles (IDPs). (Wikipedia, The Free Encyclopedia, https://en.wikipedia.org/wiki/Micrometeorite)

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URI

http://data.loterre.fr/ark:/67375/MDL-HX3CWRBT-7

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