[meteorite-list] Sudbury --- Comet Impact?

[Sterling K. Webb]

List,

A new study concludes that the 
Sudbury, Ontario, basin is an 
ancient impact crater caused by 
an icy-snowball model comet 1.85 
billion years ago:
http://www.huffingtonpost.com/2014/11/18/sudbury-basin-comet-impact-crater_n
_6168408.html
This is advance publicity; the study 
won't be published until February, 
2015.

A better description this study 
can be found here:
https://www.tcd.ie/news_events/articles/comet-the-likely-cause-of-ancient-cr
ater/5117?srcfeed=newshome&srcview=ghp#.VGwfAWcrizc

Sterling Webb