[meteorite-list] Four "new" terrestrial Craters under new study

[Charles O'Dale]

On an astronomy list I belong to, new studies of four different terrestrial 
craters are being discussed, FYI:
 
Kercher Lake, Saskatchewan:
 
http://astronomy.activeboard.com/forum.spark?aBID=58381&p=3&topicID=7625323

http://travelingluck.com/North%20America/Canada/Saskatchewan/_5991213_Kercher%20Lake.html#local_map

 
 
Bloody Creek, Nova Scotia:
 
http://www.acadiau.ca/~ispooner/pdfs_of_papers/Bloody%20Creek%20Crater.pdf
 
http://www.annapolisdigby.com/index.php?option=com_content&view=article&id=482:bridgetown-crater-could-draw-geo-tourists&catid=1:latest-news&Itemid=50

 
 
New York’s Finger Lakes Region
 
http://blogs.agu.org/meetings/2010/12/21/new-york-state%E2%80%99s-hidden-secret-a-subterranean-impact-crater/

 
 Howel Creek Structure, British Columbia:
 
http://bcpg.geoscienceworld.org/cgi/content/abstract/25/4/868
 
From the Howel Creek paper:

Though the concept is still in its infancy, I believe that the HCS is the 
footprint of a complex marine impact crater that was originally on the order of 
10 km in diameter. Dating of the impact is still uncertain though it appears to 
be of Cretaceous age. This age assumes that the impact occurred after the 
intrusion of the 97 Mya Howell Creek syenites (I believe that the unusual 
exposure of the complex was due largely to excavation and sliding initiated by 
this event) but preceded deposition of the 90 Mya Cardium sands.......
 
 
If anyone has further information on any of these structures, please let me 
know.
 
Chuck
http://ottawa-rasc.ca/wiki/index.php?title=Odale-Articles