10.6084/m9.figshare.10259996.v1 A. Jean A. Jean A. Beauvais A. Beauvais D. Chardon D. Chardon N. Arnaud N. Arnaud M. Jayananda M. Jayananda P.E. Mathe P.E. Mathe Figure DR3. Weathering history and landscape evolution of Western Ghats (India) from <sup>40</sup>Ar/<sup>39</sup> Ar dating of supergene K–Mn oxides Geological Society of London 2019 petrographic structures Mn ore deposits Open pit sample landscape evolution PRA ILV -3 Mn-rich Fe duricrust Figure DR 3. Weathering history Western Ghats allochthonous origin Pradhani Mn ore deposit Illva Mn ore deposit morphogeological strip Ar Mn ore Geology 2019-11-06 12:39:34 Figure https://geolsoc.figshare.com/articles/figure/Figure_DR3_Weathering_history_and_landscape_evolution_of_Western_Ghats_India_from_sup_40_sup_Ar_sup_39_sup_Ar_dating_of_supergene_K_Mn_oxides/10259996 Field characteristics and petrographic structures of samples collected in Mn ore deposits from the eastern morphogeological strip. (a) Illva Mn ore deposit with samples collected in the lower benches of the open pit; (b) ILV2; (c) ILV-3 collected from the upper bench of allochthonous origin; (d) this sample is a massive Mn-rich Fe duricrust; (e) Open pit of Pradhani Mn ore deposit with samples collected; (f) massive Mn ore of PRA-1 sample.