A synopsis of events related to the assembly of eastern Gondwana

https://www.adelaide.edu.au/directory/alan.collins?dsn=directory.file;field=data;id=2241;m=view

Amalgamating eastern Gondwana: The evolution of the Circum-Indian Orogens

Anatomy of a Cambrian suture in Gondwana: Pacific-type orogeny in southern India?

The thermal history of the Eastern Ghats Belt (India) as revealed by U–Pb and 40Ar/39Ar dating of metamorphic and magmatic minerals: implications for the SWEAT correlation

Precambrian crustal evolution of Peninsular India: A 3.0 billion year odyssey

Nd-isotope analyses from a range of lithologies, including charnockites, metasediments, and granitoids that comprise the high-grade terrain of South India define contrasting age provinces. North of the Palghat-Cauvery shear zone, the Karnataka Craton and the granulite blocks of Nilgiri and Madras are characterized by model Nd ages from 3.4 to 2.4 Ga with significant crustal growth during the Late Archean. South of the Palghat-Cauvery shear zone a Pan-African granulite-facies event resulted in Sm/Nd fractionation, as observed in several incipient charnockite localities. Model Nd age calculations that allow for Sm/Nd fractionation at 550 Ma yield ages in the range of 2.9 to 1.3 Ga. This range compares closely with published model Nd ages from the high-grade terrain of Sri Lanka. Mid-Proterozoic crustal growth (~1.1 Ga) observed in the Vijayan Complex of Sri Lanka may have provided source material for metasediments characterized by young model Nd ages in southern Peninsular India. The Palghat-Cauvery shear z...

P. N. Taylor

Papers

Crustal Evolution in South India: Constraints from Nd Isotopes