Table 2. Identification through Raman and IR Spectroscopy of the Polymorphs of Calcium Silica–Carbonate Biomorphsa.
| type of DNA | type of synthesis | Raman (λ cm–1) | IR (λ cm–1) | composition/biotic or abiotic |
|---|---|---|---|---|
| control | 5% (v/v) CO2 | 157, 283, 713, 1085 | 760, 872, 903, 1394, 1560, 1654, 1685, 1793, 1968 | calcite/abiotic |
| RTP | 165, 291, 724, 1093 | 603, 756, 870, 905, 1074, 1389 | calcite/abiotic | |
| E. coli | 5% (v/v) CO2 | 156, 282, 712, 1084 | 548, 604, 712, 757, 870, 904, 1388, 1793, 1979 | calcite/abiotic |
| RTP | 172, 290, 782, 1093, 2925, 2982 | 577, 587, 603, 712, 760, 871, 897, 1406, 1793 | calcite/abiotic | |
| A. maxima | 5% (v/v) CO2 | 105, 156, 283, 712, 1085 | 573, 603, 712, 757, 870, 1387, 1793, 1978 | vaterite/abiotic |
| RTP | 111–113, 121, 165, 275, 290, 456, 499, 720, 803, 1093, 1125, 1444, 1689, 1706, 2769, 2976 | 712, 792, 871, 1069, 1406, 1795, 2870, 2940 | calcite, aragonite, vaterite/biotic | |
| C. albicans | 5% (v/v) CO2 | 100, 103, 109, 158, 283, 489, 712, 1085, 1460, 1546, 2934 | 572, 712, 756, 870, 900, 1390, 1795, 2073, 2503, 2880, 2920 | calcite, vaterite/biotic |
| RTP | 118, 165, 290, 720, 1093, 1443, 1450, 1757, 2978 | 541, 712, 797, 870, 1081, 1260, 1390, 1800, 2560, 2870, 2910 | calcite, vaterite/biotic | |
| E. arvense | 5% (v/v) CO2 | 103, 110, 282, 426, 487–491, 570–585, 712–793, 827, 1085, 1102–1109, 1442, 1501, 1588, 1757, 2152–2182, 2360, 2428, 2534, 2905–2998 | 626, 712, 870, 902, 1064, 1390, 1794, 2850, 2940 | calcite, aragonite, vaterite/biotic |
| RTP | 165, 290, 720, 1093, 1443, 1757, 2865 | 712, 796, 871, 1062, 1393, 1793, 2507, 2870, 2940 | calcite/biotic | |
| H. sapiens | 5% (v/v) CO2 | 112–114, 158, 283, 446, 554, 713, 973, 1086, 1436, 1750, 2153, 2264, 2601, 2906, 2914 | 626, 712, 757, 870, 902, 1064, 1390, 1794, 1976, 2024, 2507, 2880, 2930 | calcite, aragonite/biotic |
| RTP | 123, 164, 290, 560, 718, 1088, 1093, 2460, 2971 | 582, 712, 871, 907, 1080, 1261, 1406, 1793, 2018, 2153, 2560, 2990 | calcite, aragonite/biotic | |
| all DNAs | 5% (v/v) CO2 | 102–104, 158, 283, 378,550, 713, 1086, 113, 1615, 2242, 2375, 2585, 2941 | 574, 597, 604, 617, 712, 761, 871, 898, 1389, 1788, 2870, 2910 | calcite, vaterite/biotic |
| RTP | 164, 290, 720, 1093, 1444, 1756, 2504, 2935 | 561, 573, 604, 711, 869, 1063, 1369, 1792, 2860, 2940 | calcite/biotic |
a
The control sample does not contain DNA.