Informatics Publishing Limited

K. Soman ¹, K. G. Thara ¹, M. M. Arakelyants ², V. N. Golubyev ³

Affiliations
1 Centre for Earth Science Studies, Trivandrum 695031, IN
2 IGEM, Academy of Sciences, Moscow 109017, RU
3 IGEM, Academy of Sciences, Moscow 109017, IN

Abstract

Of the three styles of deformation recognised in the Palghat Gap area, the D₃ period is conspicuous with a major pegmatite emplacement phase, associated with the migmatization event. Dating of mica from pegmatites belonging to this stage (both concordant and cross-cutting) has yielded ages ranging from 484 to 512 m.y. The pegmatite emplacement is suggested to be towards the closing stage of a retrogressive metamorphic event, associated with crustal uplift in the Palghat Gap region, which laid the tectonic frame-work for the formation of the gap later.

Keywords

Geochronology, Palghat Gap, Pegmatites, Kerala.

Full Text

     

K. Soman ¹, Mahamaya Chattopadhyay ¹, K. G. Thara ²

Affiliations
1 Centre For Earth Science Studies, Trivandrum, IN
2 Institute of Land Management, Trivandrum, IN

Abstract

No Abstract.

Full Text