[meteorite-list] Astrobleme / Meteorite search in Namibia

[E.P. Grondine]

Hi all  - 

Two interesting hypotheses:

http://expeditiongranted.nationalgeographic.com/project/seeking-massive-meteorites-in-namibia/

First, as to comet composition. Second, as to comet impact rates.

If these are true, then the same phenomemon will be seen on other planets, by the general principles of accretion.

The National Geographic Society steps in where NASA and the NSF failed to act.

As many of you know, my own work dealt mainly with recent impacts, and not older geological ones.

E.P. Grondine
Man and Impact in the Americas