RUSSIAN JOURNAL OF EARTH SCIENCES, VOL. 20, ES3006, doi:10.2205/2020ES000666, 2020

Figure 6. (a) Binary plot between cationic weight percentages of Fe and Si, showing Group-I kimberlitic character of 5023 and 5119 pipes [Williams-Jones et al., 2004]. (b) CaO versus crustal contamination index (C.I.) plot showing non-carbonated nature of 5023 and non-carbonated to hi8ghly carbonated nature of 5119 kimberlite [Taylor et al., 1994]. (c) Ce versus Ce/Pb diagram. Fields for South African (S.A.) Group-I and II kimberlites are from Le [Becker and Le Roex, 2006; Le Roex et al., 2003]; WKF and NKF from Chalapathi Rao et al. [2004] and Chalapathi Rao and Srivastava [2009]. (d) La/Nb versus Th/Nb diagram. Fields for South African (S.A.) kimberlites after Becker and Le Roex [2006] and Coe et al. [2008]; fields for EDC kimberlites adopted from Chalapathi Rao et al. [2004]. Symbols as in Figure 5.

 
Citation: Phani P. Ramesh Chandra, Prabir Sengupta, Sudeshna Basu (2020), Geochemistry and petrology of two kimberlites at Krishtipadu from Gooty cluster, Andhra Pradesh, southern India – evidence of kimberlite magmatism and a possible carbonatite association within Palaeoproterozoic lower Cuddapah basin, Russ. J. Earth Sci., 20, ES3006, doi:10.2205/2020ES000666.
 

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