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From the following article:

A late Miocene dust shower from the break-up of an asteroid in the main belt

Kenneth A. Farley, David Vokrouhlický, William F. Bottke & David Nesvorný

Nature 439, 295-297(19 January 2006)

doi:10.1038/nature04391

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Figure 1 - Unfortunately we are unable to provide accessible alternative text for this. If you require assistance to access this image, or to obtain a text description, please contact npg@nature.com

Figure 1

Two periods of elevated 3He flux, at approx35 Myr ago (late Eocene) and approx8 Myr ago (late Miocene), indicate intervals of enhanced accumulation rate of IDPs.

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Figure 2 - Unfortunately we are unable to provide accessible alternative text for this. If you require assistance to access this image, or to obtain a text description, please contact npg@nature.com

Figure 2

Concordant 3He data from two widely separated seafloor sites support a global increase in IDP flux at 8.2 Myr ago that can be attributed to the asteroid collision that produced the Veritas family.

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