recording information record all artifacts as well as rock roots soil changes rodent holes in unit cid 127 map draw photograph artifacts before remove written description on site forms also keep field notes a narrative of important events cataloging each artifacts gets a catalog number linking it to its provenience catalog number site number followed by a sequential number good sampling techniques and excellent record keeping are crucial for subsequent analysis screening back dirt early days of archaeology no screening 1 4 1 8 1 16 mesh fine mesh versus coarse mesh water screening water screening use 1 8 or 1 16 mesh screen improves visibility of small artifacts ecofacts examples also used if soil has high clay content need source of water near site or take back to lab cid 127 might use water screening on a sample flotation to recover small plant remains small bones carbonized plant remains are often preserved dirt doesn t float carbonized plant remains do soil is dried poured into bucket or tank of water charcoal and other plant materials float to the surface poured out into fine mesh screen 0 5mm cid 127 cid 127 cid 127 cid 127 cid 127 cid 127 cid 127 cid 127 cid 127 cid 127 cid 127 cid 127 cid 127 cid 127 cid 127 cid 127 cid 127 cid 127 cid 127 cid 127 cid 127 cid 127 cid 127 cid 127 cid 127 cid 127 cid 127 cid 127
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