File:STS61A Clearwater Lakes.jpg
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DescriptionSTS61A Clearwater Lakes.jpg |
English: STS61A-35-86 Lac à l'Eau Claire (Clearwater Lake[s]), Québec, Canada November 1985 |
Source | Own work |
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These twin circular lakes (large dark features) were formed simultaneously by the impact of an asteroidal pair which slammed into the planet approximately 290 million years ago. The lakes (or lake, since it is a single body of water) are located near the eastern shore of Hudson Bay within the Canadian Shield in a region of generally low relief in northern Québec province. Their proper French name is Lac à l'Eau Claire. Notice that the larger western structure contains a ring of islands that surrounds the center of the impact zone. The lakes are named after their exceedingly clear water. Also notice that the surrounding terrain shows widespread scarring from glaciation. The multitude of linear and irregular shaped lakes (dark features) are the result of gouging or scouring action caused by the continental ice sheets that once moved across this area.
Image Science and Analysis Laboratory, NASA-Johnson Space Center. 18 Mar. 2005. "Earth from Space - Image Information." http://earth.jsc.nasa.gov/sseop/efs/photoinfo.pl?PHOTO=STS61A-35-86 (10 Jul. 2005).
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This file is in the public domain in the United States because it was solely created by NASA. NASA copyright policy states that "NASA material is not protected by copyright unless noted". (See Template:PD-USGov, NASA copyright policy page or JPL Image Use Policy.) | ||
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Original upload log[edit]
Transferred from en.wikipedia to Commons using For the Common Good.
Date/Time | Dimensions | User | Comment |
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09:33, 7 October 2009 | 634 × 639 (126,976 bytes) | w:en:Arb (talk | contribs) | (Try again.) |
09:30, 7 October 2009 | 634 × 639 (772,402 bytes) | w:en:Arb (talk | contribs) | (Rotate to make north be up.) |
17:35, 10 July 2005 | 634 × 639 (392,735 bytes) | w:en:Jyril (talk | contribs) | (Clearwater Lakes) |
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current | 19:33, 27 May 2013 | 634 × 639 (124 KB) | OgreBot (talk | contribs) | (BOT): Reverting to most recent version before archival | |
19:33, 27 May 2013 | 634 × 639 (384 KB) | OgreBot (talk | contribs) | (BOT): Uploading old version of file from en.wikipedia; originally uploaded on 2005-07-10 17:35:41 by Jyril | ||
10:09, 22 May 2013 | 634 × 639 (124 KB) | Ramakrishnan.nikhil (talk | contribs) | Transferred from en.wikipedia: see original upload log above |
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