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Skeleton Lake Impact Crater
Posted by: Groundspeak Premium Member MrPirateCat
N 45° 13.894 W 079° 26.438
17T E 622405 N 5009857
Quick Description: This is the Skeleton Lake Impact Crater at Skeleton Lake, Ontario, Canada.
Location: Ontario, Canada
Date Posted: 5/8/2012 12:46:28 PM
Waymark Code: WMECVM
Published By: Groundspeak Regular Member monkeykat
Views: 6

Long Description:
Skeleton Lake is an approximately circular depression of four kilometres diameter in central Ontario. The structure appears to truncate the regional geological and physiographic trends. The country rocks are Precambrian gneisses and migmatites. There are no volcanic or sedimentary rocks in the region, yet outcrops of breccia are found on the lake shore, and erratic boulders of Ordovician limestone occur along the south shore, evidently scoured from the lake bottom by glaciation. Aeromagnetic data indicate low uniform magnetization intensity under the lake, in contrast to the variable regional pattern. A detailed gravity survey has revealed a circular 3.3 milligal negative gravity anomaly which has been modeled by bowl-shaped distributions of low density brecciated rocks similar to those found at other meteor impact sites. These observations all imply that the Skeleton Lake depression is the eroded remnant of an impact crater from Paleozoic time, which has been preserved until the tertiary by a covering of Ordovician sediments.

Source: SKELETON LAKE – A PALEOZOIC IMPACT CRATER IN CENTRAL CANADA; E.D. Waddington, M.R. Dence; 1979 Canadian Journal of Earth Sciences.
See (visit link)
Type of Crater: Simple

Crater Diameter: 4 kms

Age of Crater: 800,000,000.00

Crater Web Page: [Web Link]

View from the Coordinates:
This is the Skeleton Lake Public Dock and you can see the lake to the north of this vantage point.


Visit Instructions:
1. An original photograph of your visit must be supplied with your log. Invalid logs will be deleted.
2. The waymark owner may have specific logging requirements
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Recent Visits/Logs:
Date Logged Log User Rating  
MrPirateCat visited Skeleton Lake Impact Crater 5/11/2012 MrPirateCat visited it