Origin of the Archean earth impactors

Details Origin of the Archean earth impactors Origin of the Archean earth impactors

Jun 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991em%26p...53..233t&link_type=abstract

Earth, Moon, and Planets (ISSN 0167-9295), vol. 53, June 1991, p. 233-235.

Computer Science

Asteroids, Comets, Earth Surface, Impactors, Comet Nuclei, Diameters, Impact Melts

Scientific paper

Spherule beds found in Archean sediments imply that four impacts on the earth occurred between 3.2 and 3.5 Gyr with impactors 20 to 50 km in diameter. Results are presented of a survey of current near-earth asteroids and inner-solar-system comets, suggesting that class C asteroids, because of their carbonaceous composition and large diameters, may have been the impactors during the Archean period, resulting in the formation of spherule beds. It is suggested that the asteroid 3552 1983 SA, a carbon-rich asteroid with a diameter of 18.7, may be considered an analog of the Archean impactors.

Affiliated with

Also associated with

No associations

Rating

Origin of the Archean earth impactors does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Origin of the Archean earth impactors, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Origin of the Archean earth impactors will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1282990