| erratic |
A large rock or boulder that has been transported some distance from its source, usually by glacial action.
출처: museum.gov.ns.ca/mnh/nature/nhns2/glossary.htm
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| erratic |
Erratic - A rock fragment carried by glacial ice, deposited at some distance from the rock outcrop from which it was derived, and generally but not necessarily resting on bedrock or sediment of different composition.
출처: csd.unl.edu/general/glossary-letter.asp
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| erratic |
a big rock left by glaciers.
출처: www.tc.umn.edu/~puk/mn/glossary.html
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| erratic |
a piece of rock, transported away from its place of origin and dumped in an area where the rocks are quite different.
출처: www.geolsoc.org.uk/template.cfm
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| erratic |
A boulder that has been carried from its source by a glacier and deposited as the glacier melted. Thus, the boulder is often of a different rock type from surrounding types.
출처: www.geographic.org/glossary.html
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