The EDS spectrum showed two peaks caused by X-rays that were given off as electrons returning to the Si and O electron shells.
The Si and O comprised more than 90% of the total mass, and the atomic ratio was nearly 2:1.
Our results clearly show the potential for phytolith carbon dating at archaeological sites in the absence of other dating materials.
Radiocarbon dating has proven to be a powerful tool for reliably obtaining the ages of past events recorded in sediments and archaeological sites during the late Quaternary period.
Finally, phytolith dating was compared with dating results obtained using other materials (charcoal, plant residue) recovered from the same pit depth or cultural layer.
2a,b, the extracted phytoliths appeared as white or grey-white.
None of the charcoal or clays were observed with an optical microscope (Fig. The absence of extraneous organic materials was further checked by SEM-EDS analysis (Fig. Four micro-areas on the phytoliths were randomly selected for EDS analysis.
Consequently, it is necessary to identify alternative materials that might enable reliable and effective dating. When the plant dies and decays, this carbon fraction, encapsulated by silica, can survive for long periods due to the phytolith’s high resistance to decomposition.
Phytolith-occluded carbon (Phyt OC) has been demonstrated to be an important form of carbon sequestration.