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CHAPTER I ARBUDĀCHALA
“ Through the long vista of geological ages, Gujarāt was merged as an unidentifiable fragment of a vast continent whose shores were thousands of miles away, with a distribution of sea and land, mountains, rivers and plains totally unlike anything we see today. Gujarāt of the earliest period of geological history--Archaean-was composed of a complex of thoroughly crystalline massine rocks-of the type of granites-rocks which form the very cores or foundation of all the continents of the world. On this foundation ( which may in part at least represent the first formed crust of the earth by the cooling of the primitive molten planet) were laid down deposits of a sea which in course of ages overspread the whole area from Rājputānā to Ceylon. The remnants of these ancient sea-sediments are today seen, but in a greatly altered form, in Southern Rājputānā, Mt. Abu, Revā Kānțhā and Chāmpāner, composed of crystalline slates and sandstones, limestones and marbles. These rocks of hoary antiquity belong to what is termed the Dhārwar System of Indian geology."1
With the passage of time, the earlier sedimentary rocks of the Dhārwār system underwent a series of transformation, as noted above, and acquired characters very different from their original types. Remnants of these highly altered rocks and metamorphosed sediments are observed at Chāmpāner (Baroda district, Bombay State) and in the old Revā Kānțhā States and extend further northwards upto
1 "The Geological Evolution of Gujarāt,” by Dr. D. N. Wadia, Journal of the Gujarāt Research Society, Vol. IV, No. 4, p. 215.