Figure 1.

XRDCT investigation of the untreated Noto limestone

(A) XRD pattern extracted from a representative XRDCT slice of the untreated Noto limestone, dominated by Bragg peaks of calcite (Cal). The inset in (A) highlights the marker peaks of accessory minerals (Qtz = quartz; Cm = clay minerals).

(B) XRDCT reconstruction image showing the spatial distribution of the marker peak at Q 1.63 Å⁻¹ of calcite (corresponding to the d₀₁₂ 3.85 Å interplanar distance). Size bar: 300 μm.