File:Glacial Scratches (4843369541).jpg
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[edit]DescriptionGlacial Scratches (4843369541).jpg |
Image Description from historic lecture booklet: "Many of the boulders and pebbles of the till are found to be glaciated, or marked with parallel scratches. Often they look as if engraved with a sharp need. Sometimes the scratches are deep and rough. A marked polish is seen on some stones. If we dig through the subsoil to the bed-rock, we shall often find the latter scratched in the same way, or even deeply grooved and carved into fluting's and the folding. The glacier, shod with stones at its base, drags these over the bed-rock, and thus both the moving fragments and the floor over which they move are polished and graven. The direction of the scratches corresponds to that in which the erratic boulders have been moved, and so, putting these other facts together, we have full proof that glaciers have done the work." Original Collection: Visual Instruction Department Lantern Slides Item Number: P217:set 012 011 You can find this image by searching for the item number by clicking here. Want more? You can find more digital resources online. We're happy for you to share this digital image within the spirit of The Commons; however, certain restrictions on high quality reproductions of the original physical version may apply. To read more about what “no known restrictions” means, please visit the Special Collections & Archives website, or contact staff at the OSU Special Collections & Archives Research Center for details. |
Source | Glacial Scratches |
Author | OSU Special Collections & Archives : Commons |
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OSU Special Collections & Archives : Commons @ Flickr Commons |
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[edit]This image was taken from Flickr's The Commons. The uploading organization may have various reasons for determining that no known copyright restrictions exist, such as: No known copyright restrictionsNo restrictionshttps://www.flickr.com/commons/usage/false
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This image, originally posted to Flickr, was reviewed on 5 September 2013 by the administrator or reviewer File Upload Bot (Magnus Manske), who confirmed that it was available on Flickr under the stated license on that date. |
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current | 06:18, 5 September 2013 | ![]() | 2,720 × 2,546 (644 KB) | File Upload Bot (Magnus Manske) (talk | contribs) | Transferred from Flickr by User:russavia |
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IIM version | 55,038 |
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