Table 1 Chemical parameters calculated from the analysis of bone through ATR-FTIR and used in this study.
From: Bone diagenesis and stratigraphic implications from Pleistocene karst systems
Indices | Peaks (cm−1) | Description | Baseline correction (cm−1) | References |
|---|---|---|---|---|
Amide I/PO4 | 1640 / 1010 | Amide I to phosphate | 1710–1590 | |
1150–890 | ||||
IRSF | (560 + 600) / 590 | Infrared splitting factor. Indicate crystal size and order in the matrix | 660/640 470/420 | |
C/P | 1410 / 1010 | Carbonate to phosphate | 1590—1290 | |
C/C | 1455 / 1410 | A + B type carbonates band area in deconvoluted spectrum | ||
FWHM(ν3PO4) | 1010 | Full width at half-maximun of the ν3(PO4) band, indicating lattice order | 1150–890 | |
OH/PO4 | 630 / 605 | OH− groups libration | 660/640 470/420 | |
Calcite/PO4 | 712 /1010 | Calcite to phosphate | 730–700 | |
HPO41118 | Acid phosphate band area in deconvoluted spectra at 1118 cm−1 | |||
HPO41145 | Acid phosphate band area in deconvoluted spectra at 1145 cm−1 | |||
HCP | Highly crystalline phosphate, band area at 1030 cm−1 in deconvoluted spectra | |||
PCP | Poorly crystalline phosphate, band area at 960 cm−1 in deconvoluted spectra | |||
