EXPERIMENTAL APPROACH TO THE STUDY OF USE-WEAR IN WOOD

WITH 3D SCANNING

5350-5000 cal BC

LEVEL 1 (5350-5200 cal BC) LEVEL 2 (5150-5000 cal BC)

Pointed and doble-pointed sticks

taxon length diameter section

Double-

pointed sticks buxus

285/355 (525)

mm 20/35 mm angular

Pointed stick buxus, corylus, laurus,

arbutus, Pomoideae 1300/500 mm 15/30 mm cylindircal

Pointed stick

buxus,

quercus cad,

Pomoideae

870/290 mm 35/45 mm cylindrical

Pointed stick buxus,

quercus Caducifoli 700/400 mm

30/15

20/10 oval

Problems studying traceology in wood

Wood experimentation

Experimental double pointed stick nº4

Scan analysis

Volum Length Width

mm3 mm to 45mm to 35mm to 25mm to 15mm to 8mm to 4mm to 2mm

Before 3309,70 45,47 27,60 26,62 26,56 25,24 19,54 15,91 11,63

After 3221,90 41,21 26,53 26,01 25,33 22,21 9,28 5,68 0,00

% lost -2,65 -9,37 -3,88 -2,29 -4,63 -12,00 -53,51 -64,3 -100,00

Scan analysis

Scan analysis

Scan analysis (mm) Strach 1 Strach 2 Strach 3 Strach 4 Strach 5 Strach 6 Strach 7

length 5,02 9,68 1,35 5,28 5,91 4,56 5,40

Width 6 - 0,85 - 0,59 - - -

Depth 6 - 0,04 - 0,02 - - -

Width 5 0,87 0,93 - 0,60 - - 0,70

Depth 5 0,06 0,10 - 0,02 - - 0,02

Width 4 0,50 0,64 - 0,77 0,76 - 0,87

Depth 4 0,03 0,03 - 0,07 0,06 - 0,04

Width 3 - 2,48 0,93 - 1,07 0,81 -

Depth 3 - 0,36 0,07 - 0,15 0,08 -

Width 2 - 1,84 - - 1,00 1,47 -

Depth 2 - 0,57 - - 0,17 0,15 -

Scan analysis (VI) (mm) Strach 1 Strach 2 Strach 5 Strach 8

length 4,5 8,44 3,83 9,83

Width 5 0,49 0,77 - 0,35

Depth 5 0,02 0,08 - 0,02

Width 4 0,54 0,99 - 0,89

Depth 4 0,05 0,09 - 0,06

Width 3 - 1,17 0,68 0,65

Depth 3 - 0,15 0,26 0,05

Width 2 - 1,84 0,93 0,71

Depth 2 - 0,45 0,15 0,04

Width 1 - - - 0,78

Depth 1 - - - 0,04

Scan analysis

CONCLUSIONS

• Manipulate waterlogged materials

• Easy to move to the field

• 3D models worked digitally

• Objective measures and studies

¿Micro use-wear?