File:Black mat (12.9 ka) Murray Springs Clovis site in Arizona.jpg
Black_mat_(12.9_ka)_Murray_Springs_Clovis_site_in_Arizona.jpg (600 × 402 pixels, file size: 85 KB, MIME type: image/jpeg)
Summary[edit | edit source]
Description |
The dark line shown is the black mat (12.9 ka) along the arroyo wall of the Murray Springs Clovis site in Arizona. |
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Source |
The image appears on a website entitled, "Evidence for an extraterrestrial impact 12,900 years ago that contributed to the megafaunal extinctions and the Younger Dryas cooling" at https://www.pnas.org/content/104/41/16016.full. |
Date |
March 13, 2007 |
Author |
R. B. Firestone, A. West, J. P. Kennett, L. Becker, T. E. Bunch, Z. S. Revay, P. H. Schultz, T. Belgya, D. J. Kennett, J. M. Erlandson, O. J. Dickenson, A. C. Goodyear, R. S. Harris, G. A. Howard, J. B. Kloosterman, P. Lechler, P. A. Mayewski, J. Montgomery, R. Poreda, T. Darrah, S. S. Que Hee, A. R. Smith, A. Stich, W. Topping, J. H. Wittke, and W. S. Wolbach |
Rationale |
No free licensed or public domain alternatives known to exist to show the black mat (12.9 ka) along the arroyo wall of the Murray Springs Clovis site in Arizona. |
Permission |
Fair Use, site restriction. |
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File history
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 15:10, 23 April 2019 | 600 × 402 (85 KB) | Marshallsumter (discuss | contribs) | {{Information1 |Description = The dark line shown is the black mat (12.9 ka) along the arroyo wall of the Murray Springs Clovis site in Arizona. |Source = The image appears on a website entitled, "Evidence for an extraterrestrial impact 12,900 years ago that contributed to the megafaunal extinctions and the Younger Dryas cooling" at https://www.pnas.org/content/104/41/16016.full. |Date = March 13, 2007 |Author = R. B. Firestone, A. West, J. P. Kennett, L. Becker, T. E. Bunch, Z. S. Revay, P.... |
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