CARBONATIES OF NIWANI DISTRICT UDAIPUR, RAJASTHAN, INDIA

Abstract

long back in 1884, before the cerbo natite were recognized as petrolo gtcclly end economically! si nifica type of roc cs P, N.Bose,whiie investigating the geology of the armado valley between N mtmar and Kawant near Dot, came across those carbonate rocks, and the observation which be made became the first ever recorded description of a car bo ratite ;, He observed masses of yellowibalterod caic reous siliceous rocks forming the crest of baaalt'coverod ridges. He bas .sated 1, " that these reeks were rxro resistant to ventherin and erosion than basalts, 2 * that they were not bedded 3, corztnodm fossils 4. that they ware fix pained but crystalline 5, that they were markedly calcareous with to eal nests and patches of trappean400k1g substance— the igneous origin of a.icb manifesto under the microscope 8, the outcrop distribution is lenior and straight 7. that they were locally associated with highly altered and intensely hardened shay and oilteou rocks.