Open Access
Table 2
Archean impactor spherule beds.
| Name | Age (Ga) | Di (km) | N(Di > 1) |
|---|---|---|---|
| Sudbury | 1.82 | 15 | 225 |
| Grænsesø | 2.0 | 60 | 3600 |
| Kuruman | 2.46 | 15 | 225 |
| Dales George | 2.49 | 40 | 1600 |
| Bee George | 2.54 | 14 | 196 |
| Reivilio | 2.56 | 22 | 484 |
| Paraburdoo | 2.57 | 22 | 484 |
| Monteville | 2.62 | 38 | 1444 |
| S4 | 3.24 | 43 | 1849 |
| S3 | 3.25 | 56 | 3136 |
| S2 | 3.26 | 48 | 2304 |
| S1 | 3.47 | 41 | 1681 |
Notes. The diameters of the impactors are the average from Johnson & Melosh (2012). Two other layers, Jeerinah and Carawine, may be from the same impact as Monteville (Glass & Simonson 2012).
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