Lithostratigraphy of the Matanomadh Formation, Kutch, India

The Matanomadh Formation is the lowermost lithostratigraphic unit of the Tertiary succession of Kutch. The lithostratigraphy of this formation has been discussed in this paper. The formation is divisible into two members, viz., (i) Laterite Member and (ii) Clastic Member. Such a division is purely based on lithology. The Laterite Member conformably overlies the Deccan Trap Formation and is mainly made up of pink, grey and variegated laterites and white kaolinitic clay. This member is unconformably overlain by the Clastic Member. The Clastic Member, on the other hand, consists of sandstones alternated by shales, mottled clay, tuff etc. The upper contact of the Clastic Member with the overlying Naredi Formation is conformable.