A Regolith Pre-Exposure Signature in Fossil Micrometeorites from an Asteroid Collision 470 Million Years Ago

Details A Regolith Pre-Exposure Signature in Fossil Micrometeorites from an Asteroid Collision 470 Million Years Ago A Regolith Pre-Exposure Signature in Fossil Micrometeorites from an Asteroid Collision 470 Million Years Ago

Mar 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009lpi....40.1153m&link_type=abstract

40th Lunar and Planetary Science Conference, (Lunar and Planetary Science XL), held March 23-27, 2009 in The Woodlands, Texas, i

Physics

1

Scientific paper

Some 25% of fossil micrometeorites (MM) from an asteroid collision 470
Myrs ago have Ne-21 CRE ages of 10-50 Myrs due to regolith preexposure,
requiring to revisit the cometary origin interpretation of a similar
pattern observed in recent MM and IDP.

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