Fig. 1

Geological map on top right, within a portion of the map of western India. The numbered dots in the location map indicate the positions of the measured sections. Within the inset map, the red rectangle marks the study area in regional context. All sections represent the Ukra Member, divided into shoreface, TST shelf and HST shelf facies assemblages, with their variations in lithology and sedimentary structure. Sandstone–shale ratio and delineated parasequences within the TST and the HST are depicted in the associated curves. Palaeocurrent directions of the shoreface, the TST shelf and the HST shelf are given in roses separately. Fm. = Formation; Fms. = Formations; Mem. = Member; MFZ = Maximum flooding zone