File:Archaeological Excavations in the Clarno Basin near the Hancock Field Station, north-central Oregon (USA) 1977 (2200313567).jpg
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| Description | Photo taken in the summer of 1977. Fill was taken from small areas of the excavation unit and screened (in case any artifacts were missed in place --- almost all were measured in their original position). The fill (soil) was then bagged separately according to location and depth and put through a flotation device (below) which allowed organic materials to go to the surface where they were skimmed off, filtered according to size, and dried for identification. The remaining fill was let out of the bottom through another series of filters so that any tiny artifacts (like waste flakes from the manufacture of stone tools) could be recovered and sorted by size. After all the stone tools and flakes were catalogued, all the artifacts from the entire site were matched up where possible to others (like a very complicated jigsaw puzzle). This way it was possible to tell which parts of the site were probably being used at a particular point in time and to reconstruct activity like making a stone tool in one part of the site and using it and re-sharpening it in another. |
| Date | Taken in 1977 |
| Source | Archaeological Excavations in the Clarno Basin near the Hancock Field Station, north-central Oregon (USA) 1977 |
| Author | John Atherton |
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This image was originally posted to Flickr by gbaku at https://flickr.com/photos/72105154@N00/2200313567. It was reviewed on 17 March 2017 by FlickreviewR and was confirmed to be licensed under the terms of the cc-by-sa-2.0. |
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| current | 00:11, 17 March 2017 | | 4,203 × 2,613 (3.15 MB) | Kingofthedead (talk | contribs) | Transferred from Flickr via Flickr2Commons |
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