Table 1 Composition and binder to aggregate proportions defined by Polarized Optical Microscopy analyses on thin sections of the samples collected from the theatre. Legend: ●●●●●: extremely abundant (> 50% area); ●●●●: very abundant (~ 30–50% area); ●●●: abundant (~ 16–29% area); ●●: frequent (~ 6–15% area); ●: sporadic (~ 1–5% area); tr: traces (< 1% area); L: Lime; C: Clay; –: below detection limit.
Group | Sample | Binder | Aggregate | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Lime lumps and unburned relicts | Abundance | Composition | Average coarse fr. (mm) | Average fine fraction (mm) | Carbonate sand (limestones and dolostones) | Chert | Quartz | Limestone chips | Sandstone | Clay | Feldspars | Fired-clay fragments | Fired-clay powder | Pyroclastic rocks | Recycled mortars | Mica | Bioclasts | Organic fibers | Porosity | Binder:Aggregate | ||
1 | PREF_1 | ● | ●● | L | 5.08 | 0.33 | ●●●●● | ●● | ●● | ●● | ● | ● | – | – | – | – | – | tr | – | – | ●● | 1:2.5 |
PREF_4 | ●● | ●●● | L | 3.80 | 0.34 | ●●●● | ●● | ● | – | ● | ● | tr | – | – | – | – | tr | – | – | ●● | 1:1.5 | |
PREF_7 | ●● | ●●● | L | 3.24 | 0.38 | ●●● | ●●● | ● | – | ● | ● | – | tr | – | – | – | tr | – | – | ● | 1:1.5 | |
PREF_8 | ● | ●●● | L | 3.35 | 0.34 | ●●● | ● | ●● | ● | ● | ● | tr | – | – | – | – | tr | – | – | ● | 1:1.5 | |
PREF_9 | tr | ●●● | L | 4.20 | 0.30 | ●●●● | ●● | ● | ● | tr | tr | – | – | – | – | – | – | – | – | ● | 1:2 | |
PREF_10 | ● | ●●● | L | 3.43 | 0.35 | ●●●● | ●● | ● | ● | – | ● | – | – | – | – | tr | – | – | – | ●● | 1:1.5 | |
PREF_11 | – | ●●● | L | 3.11 | 0.32 | ●●●● | ● | ● | – | ● | tr | – | – | – | – | ● | tr | – | – | ● | 1:1.5 | |
PREF_12 | ● | ●●● | L | 3.40 | 0.35 | ●●●● | ●● | ● | – | tr | tr | – | – | – | – | – | – | – | – | ●● | 1:1.5 | |
WM_1 | ● | ●●● | L | 4.12 | 0.40 | ●●●● | ●● | ● | – | – | ● | – | – | – | – | – | – | tr | – | ●● | 1:1.5 | |
WM_3 | ● | ●●● | L | 3.56 | 0.42 | ●●●● | ●● | ● | – | ● | ● | – | – | – | – | – | – | tr | – | ●● | 1:1.5 | |
WM_6 | ● | ●●● | L | 3.98 | 0.39 | ●●●● | ● | ● | – | tr | tr | tr | – | – | – | – | tr | – | – | ● | 1:1.5 | |
WM_7 | ●● | ●●● | L | 3.51 | 0.38 | ●●● | ●● | ● | – | – | – | – | – | – | – | – | – | – | – | ●● | 1:2 | |
WM_8 | ● | ●● | L | 6.35 | 0.37 | ●●●●● | ● | ● | – | – | tr | – | – | – | – | – | – | – | – | ●●● | 1:2.5 | |
WM_9 | ● | ●● | L | 5.34 | 0.49 | ●●●● | ●●● | ● | – | tr | – | – | tr | – | – | – | – | tr | – | ●● | 1:2.5 | |
WM_10 | ● | ●●● | L | 3.98 | 0.41 | ●●● | ●● | ● | ●● | ● | – | tr | – | – | – | – | tr | – | – | ●● | 1:2 | |
WM_11 | ● | ●●● | L | 3.55 | 0.43 | ●●● | ●● | ● | – | ● | – | tr | – | – | – | – | – | – | – | ●● | 1:1.5 | |
WM_12 | ● | ●● | L | 6.63 | 0.39 | ●●●●● | ●● | tr | – | ● | ● | tr | – | – | – | – | – | – | – | ● | 1:2.5 | |
WM_13 | tr | ●●● | L | 4.10 | 0.42 | ●●●● | ●● | ● | – | tr | – | – | – | – | – | – | – | – | – | ●● | 1:1.5 | |
WM_14 | ●● | ●●● | L | 3.23 | 0.44 | ●●● | ●● | ● | – | ●● | – | tr | – | – | – | – | – | tr | – | ●● | 1:2 | |
WM_15 | ● | ●●● | L | 4.10 | 0.46 | ●●● | ●●● | ● | – | ● | – | – | – | – | – | – | tr | tr | ●● | 1:2 | ||
WM_35 | – | ●●● | L | 3.40 | 0.38 | ●●● | ● | ●● | ● | – | tr | tr | ● | ● | – | – | tr | tr | – | ● | 1:1.5 | |
2 | PREF_13A | ● | ●●● | L | 2.20 | 0.27 | ●●● | ● | ● | – | tr | ● | tr | ●● | ● | – | ● | tr | – | – | ● | 1:1.5 |
PREF_13B | tr | ●●● | L | 2.36 | 0.24 | ●● | ● | tr | – | tr | ● | – | ●●● | ●● | – | ● | – | – | – | ● | 1:1.5 | |
PREF_14 | ●● | ●●● | L/C | 3.37 | 0.38 | ●● | ● | ● | – | – | ●●● | – | ●● | ● | – | tr | tr | – | – | ● | 1:2 | |
3 | PREP_25.1 | – | ●●● | L | 3.11 | 0.34 | ● | tr | ● | tr | – | – | tr | ●●● | ● | ●● | – | – | – | – | ● | 1:2 |
PREP_25.2 | ● | ●●● | L | 6.54 | 0.36 | ● | tr | ● | ● | – | tr | tr | ●● | ● | ●●● | – | tr | – | – | ● | 1:1.5 | |
PREP_53 | ● | ●● | L | 11.20 | 0.43 | ●● | ● | ● | ● | ● | ● | tr | ●● | ● | ●● | ● | – | tr | tr | ● | 1:2 | |
