Structural Evolution of Sausar Group around Parseoni, Nagpur District, Maharashtra: its Implication for Stratigraphy

Precambrian metasediments of Parseoni area belong to the Sausar Group. These comprise of quartzite, mica schist with manganese ore and marble. The metasediments of the area show evidence of three phases of folding. The early folds (F₁) are isoclinal with an axial planar cleavage (S₁). The second folds (F₂) are tight to isoclinal with axial planar crenulation cleavage (S₂). Thcse F₂ folds have EW striking vertical axial planes and congruous pucker axis lineations. The third folds (F₃) are open upright with NS striking axial planes. An antiformal F₂ fold plunging E is mapped in the area. In the absence of any primary top-and-bottom criteria the stratigraphic succession for the area suggested by earlier workers is debatable.