Table 4.
Summary of Wind Indicators in the Glen Torridon Region Relative to Periodic Bedrock Ridges (PBRs)
| Relative age | Wind indicator | Orientation | Inferred wind direction | Orientation of GT PBRs relative to inferred wind direction |
|---|---|---|---|---|
| Modern | Eroded drill fines (Sullivan, Baker, et al., 2020) | W | W | Transverse |
| MarsWRF Model Most Common Winds | SW, WSW, SSW | SW, WSW, SSW | Parallel | |
| Mars WRF Model Strongest Wind Stresses | SSW | SSW | Parallel | |
| Sand wind tails behind rocks and pebbles (Sullivan, Baker, et al., 2020) | WSW | WSW | Oblique | |
| Glen Torridon Active Ripple Crests (Sullivan, Baker, et al., 2020; this study) | N/S to NNE/SSW | W to WSW | Transverse to oblique | |
| Sands of Forvie Wind Streak (Sullivan, Baker, et al., 2020) | WSW | WSW | Transverse to oblique | |
| Older | Glen Torridon TAR crests (this study) | NW/SE | NE or SW | Parallel |
| Abrasion textures in Glasgow member (Sullivan, Baker, et al., 2020) | WNW to S | WNW to S | Transverse to parallel | |
| Abrasion textures in Stimson member (Sullivan, Baker, et al., 2020) | NE | NE | Parallel | |
| Oldest | Greenheugh Pediment linear ridges (Anderson & Bell, 2010; Kronyak et al., 2019) | WNW/ESE | Unknown | Unknown |
| Scours and canyons near Glen Torridon (this study) | SE to SW | SE to SW | Oblique to parallel | |
| Yardangs on the NW face of Mount Sharp (this study) | NNE/SSW | SSW | Oblique to parallel |