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U-Pb zircon geochronology of granites and charnockite from southern India: Implications for magmatic pulses associated with plate tectonic cycles within a Precambrian suture zone

Sato, Kei; Santosh, M.; Chetty, T.R.K.; Hirata, Takafumi

Description

The Palghat-Cauvery Suture Zone (PCSZ) in southern India marks the trace along which continental blocks were sutured during the Precambrian. We report here U-Pb geochronological data based on laser ablation ICP mass spectrometry for zircons in two granite plutons and an associated charnockite from within the PCSZ. The weighted mean of206Pb/238U ages for a rapakivi granite from the southern part of the PCSZ yields 819±26Ma (error: 2σ; N=13). On the other hand, a metamorphosed A-type granite and...[Show more]

CollectionsANU Research Publications
Date published: 2012
Type: Journal article
URI: http://hdl.handle.net/1885/69763
Source: Geological Journal
DOI: 10.1002/gj.1300

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