Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
10701477 | Icarus | 2012 | 4 Pages |
Abstract
Based on literature data from lunar meteorites and orbital observations it is argued that the lunar crater Giordano Bruno (22 km â
) formed more than 1 Ma ago and probably ejected the lunar meteorites Yamato 82192/82193/86032 at 8.5 ± 1.5 Ma ago from the Th-poor highlands of the Moon. The efficiency and time scale to deliver 3He-rich lunar material into Earth's sediments is discussed to assess the temporal relationship between the Giordano Bruno cratering event and a 1 Ma enduring 3He-spike which is observed in 8.2 Ma old sediments on Earth.
Keywords
Related Topics
Physical Sciences and Engineering
Earth and Planetary Sciences
Space and Planetary Science
Authors
Jörg Fritz,