Fig. 4
From: Nanoscale characterization of space weathering in lunar samples
(a) Topographical image of lunar sample 15445.307. (b) Amplitude and topographical profile curves corresponding to the dashed line in (a), (c), and (d). Amplitude images corresponding to (a) at (c) 935 cm−1[B] and (d) 1050 cm−1[R]. (e) Nano-FTIR amplitude ratio 1050 cm−1/935 cm−1 versus 935 cm−1 for 15445.307 (upper frame) and 15445.311 (lower frame) binned according to the reflectance ratios for shocked-induced pressure proposed by Martin36. (f) Spatial locations of the 25–45 GPa bin and > 45 GPa bin pixels in 15445.307 (upper frame) and 15445.311 (lower frame).
