File:Middle Ordovician craters.jpg

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English: North American Middle Ordovician impact craters. Key: 1: Ames crater, 2: Decorah crater, 3: Rock Elm Disturbance, 4: Slate Islands crater.
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This map was created with ArcMap.
 
This map was created with Adobe Photoshop.
Author Vkil

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Vkil at English Wikipedia, the copyright holder of this work, hereby publishes it under the following licenses:
GNU head Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the section entitled GNU Free Documentation License.
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Attribution: Vkil at English Wikipedia
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The original description page was here. All following user names refer to en.wikipedia.
  • 2013-02-22 18:24 Vkil 1032×1029× (275027 bytes) Uploading a self-made file using [[Wikipedia:File_Upload_Wizard|File Upload Wizard]]

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current15:32, 19 September 2019Thumbnail for version as of 15:32, 19 September 20191,032 × 1,029 (269 KB)Andrew Dalby (talk | contribs)==Summary== {{Information |Description = North American Middle Ordovician impact craters. Key: 1: Ames crater, 2: Decorah crater, 3: Rock Elm Disturbance, 4: Slate Islands crater. |Source = Created it in ArcMap 10 and Photoshop. |Date = 2013-02-22 |Author = Vkil at en:wiki }} ==Licensing== {{self|GFDL|cc-by-sa-3.0|migration=redundant}}

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