Fig. 1: Geomorphological setting of the Sarpang area within the Himalayas. | Communications Earth & Environment

Fig. 1: Geomorphological setting of the Sarpang area within the Himalayas.

From: Deformed alluvial terraces record an excess of slip over the last few centuries on the Himalayan Topographic Frontal Thrust of central Bhutan

Fig. 1

a 3D oblique view of Pleiades-derived Digital Surface Model (DSM) at 1 m resolution (see Method section for details) with a vertical exaggeration of 2.5. The Topographic Frontal Thrust (fault surface trace, black line) separates the undeformed alluvium of the Indian plain from a set of abandoned terrace treads (T1–T7) that exhibit mean elevations above the present stream belt (blue lines draining T0) ranging from ca. 8 m to ca. 64 m. Gray lines are topographic profiles P0-P8 extracted from Pleiades-derived DSM (x-origin next to profile label). The white triangle represents a soil pit sampled by Berthet et al.12 to date the deposition of T6. Yellow diamonds are locations of paleoseismic trenches from Le Roux‐Mallouf et al.20. The top surface of T6 is colored according to elevations, as shown by the color scale. Green line shows the location of the electrical resistivity profile. The viewpoint of Fig. 5a is also given. b Transverse west-east topographic profile P8 showing the sequence of fluvial terraces of the Sarpang river.

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