AGE OF THE EXOTIC LIMESTONE IN NAOTHALUNG AREA OF HUNGPUNG VILLAGE, UKHRUL DISTRICT, MANIPUR STATE, NORTHEAST INDIA

Pemmaya Kasomva; Venkatachalapathy. R

Volume : VIII, Issue : I, January - 2018

AGE OF THE EXOTIC LIMESTONE IN NAOTHALUNG AREA OF HUNGPUNG VILLAGE, UKHRUL DISTRICT, MANIPUR STATE, NORTHEAST INDIA

Pemmaya Kasomva, Venkatachalapathy. R

Abstract :

The study of foraminifera and biostratigraphy of the exotic limestone from Naothalung area in Hungpung village shows Early Campanian – Late Maastrichtian age for the mélange zone of Ophiolite Belt, Ukhrul District, Manipur State. Rich associations of planktonic and benthic foraminifera were determined. The present study records six planktonic foraminiferal biozones viz.:

(i) Gansserina gansseri zone (ii) Globotruncana aegyptiaca zone (iii) Globotruncanella havanensis zone (iv) Globotruncanita calcarata zone (v) Globotruncana ventricosa zone (vi) Globotruncanita elevate zone .

In the study area we have recorded first time benthic foraminifera Bolivina witwickae, Bolivinoides sp., Fissurina sp., Fissurina orbigyana, Dentalina sp., Gaudryina pyramidata, Nodosaria obscura and Pseudonodosaria sp.