Table 2 Concentration (weight %) of major chemical elements in the spherulites and in the background
From: Microscopic observations of paper and parchment: the archaeology of small objects
Element | Spherulites | Background | p |
|---|---|---|---|
C | 47.75 | 58.52 | 0.0379 |
O | 43.10 | 38.95 | 0.2675 |
Mg | 2.41 | 0.24 | 0.0002 |
Al | 0.45 | 0.31 | 0.1568 |
Si | 1.21 | 0.85 | 0.1075 |
P | 3.01 | 0.26 | < 0.0001 |
S | 0.05 | 0.16 | 0.0825 |
K | 0.61 | 0.14 | 0.0035 |
Ca | 1.20 | 0.48 | 0.0016 |
Fe | 0.22 | 0.08 | 0.1838 |