Yargatti Fm

Middle formation (3 of 9) of Kaladgi Gr and middle of its Lokapur Subgroup (3 of 6)

Shale/slate, dolomite. Contains microbial mat structures (Fig. – image A).

Figure: Upper part of the Lokapur Subgroup field photographs illustrating lithology and sedimentary structures. (A) Microbial mat structure in Yargatti Fm, dolomite, and limestone. (B) Arlikatti Fm, shale, siltstone, and chert exposed in railway cutting. Width of the photograph is ca. 5 m. (from Saha et al., 2016)]

Muddy tidal flat. Development of shallow water carbonate platform with microbial mats on top of fairly deep-water shale points to upbuilding of the carbonate platform, and shallowing up phase of basin development (Fig. – image A).