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Fig. S5: Mesoproterozoic ⁴⁰Ar–³⁹Ar ages of some lamproites from the Cuddapah Basin and Eastern Dharwar Craton, southern India: implications for diamond provenance of the Banganapalle Conglomerates, age of the Kurnool Group and Columbia tectonics

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posted on 2021-02-02, 15:08 authored by Alok Kumar, Debojit Talukdar, N.V. Chalapathi Rao, R. Burgess, B. Lehmann

Normal isochron plots constructed from all step-heating data (a), steps 3 to 7 (b), inverse isochron constructed from all step-heating data (c) with representative ages and errors and steps 4 to 7 (d) shown for sample R-4/1 (Ramadugu lamproite).

Funding

Science and Engineering Research Board (grants SR/S4/ES-599/2011 and IR/S4/ESF-18/2011) to NVCR

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https://orcid.org/0000-0003-0476-5302

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Eastern Dharwar Craton lamproite isochron Ar step-heating data Geology

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Fig. S5: Mesoproterozoic 40Ar–39Ar ages of some lamproites from the Cuddapah Basin and Eastern Dharwar Craton, southern India: implications for diamond provenance of the Banganapalle Conglomerates, age of the Kurnool Group and Columbia tectonics