Table 2 List of compounds detected on all the samples analysed with Raman micro-spectroscopy and their agent of accumulation
Age (year old) | Sample | Amorphous carbon | Quartz | Anatase | Haematite | Goethite | Maghemite | MnOx | Bone | Feldspar | Calcium carbonate |
|---|---|---|---|---|---|---|---|---|---|---|---|
71,000 | Pebble | x | x | x | x | x | x | x | |||
Triangular grindstone | x | x | x | x | x | x | |||||
Sb5186 | x | x | x | x | x | x | |||||
Sb5167 | x | x | x | ||||||||
72,500 | Polished stone | x | x | x | x | ||||||
SbS-LBG-C4b | x | x | x | x | x | ||||||
SbS-LBG-C4a-H3(2) | x | x | x | x | x | ||||||
77,000 | Grindstone BS B4a | x | x | x | x | x | x | ||||
SbS-BS-H1-B4a | x | x | x | x | x | x | x | ||||
SbS-BS2-B4a | x | x | x | x | x | ||||||
Grindstone BS B5c | x | x | x | x | x | ||||||
Cortical flake | x | x | x | x | |||||||
Sb5383 | x | x | x | ||||||||
Sbs-BS7-B4c | x | x | |||||||||
Broken slab-like grindstone | x | x | x | x | x | x | x | ||||
Compound origin on the stone tool | Sed/RC/UR/MA | Sed/RC/UR | Sed/RC/UR | Sed/RC/UR | UR | SM/UR | Sed/RC/UR/MA/SM | Sed | Sed/RC | Sed | |