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L21 Grooved rock - glacial action. Acadia National Park. Maine, USA
Position:
N44° 20'
W68° 10' approx.
Elevation:
400'/120m approx.
Image format:
35mm
GROOVED ROCK - GLACIAL ACTION
This rock in Acadia National Park, Maine, USA bears the tell-tale
scratches and the smooth appearance that suggests the powerful
action of moving ice has played a part. Moving from left to right,
a glacier descending from the Appalachian Mountains to the North,
has smoothed the GRANITE rock and has left lines and grooves through
the scratching action of sharp stones. This type of feature can
be seen all over the world in areas where strong rocks have met
the abrasive force of moving glaciers in the past. Similar features
can be seen in image L9 and there is a spectacular example in image L79 in the regolith.com library.
Less detail
Image Trail:
L8 Mountain stream on glaciated bed rock. Co. Kerry, Ireland
L9 Grooved rock - glacial action. Co. Kerry, Ireland
L65 Glaciers. Greenland
L66 Glacier. Greenland
L79 Glacial Polish on polygonal basalt, Devil's Post Pile, California,
USA
L80 The Giant's Causeway, Co. Antrim, Northern Ireland, UK
Links:
www.nps.gov/acad/anp/html
http://tqjunior.thinkquest.org/3876/glaciers.html
http://www.davison.k12.mi.us/bentley/glaciers.htm
http://www.glaciers.net/
http://nsidc.org/glaciers/information.html
http://vulcan.wr.usgs.gov/Glossary/Glaciers/description_glaciers.html |
