- #ecsmonday Thick sand cover, loose terrain, grazing livestock... Sihoyiya et al. (ZA) overcome field challenges to image the #HotazelFormation at 1.0-1.5 km depth using high-resolution #seismic surveys: doi.org/10.5194/se-17-135-2026 #KalahariManganeseField #geophysics #paperalertJan 26, 2026 09:29