Fig. 3: Sedimentological analysis of typical moraine and fluvial sediments in the boreholes.
From: Onset of Mid-Pleistocene glaciation in the Eastern Himalayan syntaxis

A, B Particle-size distributions of moraine and fluvial samples; (C, E), (D, F) Sub-microscopic photographs and SEM images showing the features of coarse-grained quartz for samples 4-269 and 3-280, respectively. As-Arcuate step, Ss-Straight step, Fcs Flat cleavage surfaces, Mcf Medium conchoidal fractures, Vsc V-shaped percussion cracks, Cpm Crescentic percussion marks, Sc Solution crevasses.