Had a good day today, and did something besides digging. On Monday, we finished up the unit we were working on (including stratigraphy and taking a column sample) so today was spent water sifting different samples and then sorting them.
So, a column sample is take from one of the walls of the unit, and consists of a 10 x 10 x 20cm column taken through all the different layers of stratigraphy (seen in the first two pictures).
Water sifting was done down by the river (easy access to a lot of water), where we would pour some of the collected sediments through a special three screen size system. The first screen has the largest screen (3.14mm), the second is a little smaller (2mm) and tne last one is the finest screen (1mm). The three screen systems ensures that different sizes of finds in the sample get trapped at the different levels. That enables a more precise sampling and sorting of he bone, artifacts and other associated finds in the samples.
So once the water screening was done, the samples are left out to dry before starting to sort out the bones, which there is a lot of. Probably going to do the sams thing tomorrow, and the we all go home on Friday.
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| The column sample taken from the north wall |
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| Close up on the column sample |
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| The three part sifting tool, and sediment being sifted |
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| Sifted samples laying out in the sun |
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| Sorting out the samples |
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| The bones found in one single sample (roughly 2L). |
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