Mafic volcanic rocks of the Mesozoic Kutch basin represent the earliest phase of Deccan volcanic activity. An olivine-clinopyroxene-plagioclase-phyric undersaturated basalt occurs as a sill near Sadara in the Pachham upland, ...

Western most on-land exposure of basalt of Deccan affinity occurs along the southern coastal belt in Kutch, Abundant magmatic rocks also occur in the Pachcham Island in northern Kutch. These include olivine-clinopyroxen ...