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

Figure 3. Photomicrographs of 5023 pipe. (a) Altered olivine macrocrysts within a fine-grained groundmass. (b) Olivine macrocrysts under furruginisation and haematitised olivine macrocyst and dolomite xenolith. (c) Heavily serpentinised dolomite (spD) intervened by serpentine (Sp). (d) Heavily altered olivine macrocrysts with phenocrysts of phlogopite. (e) An autholith of kimberlite amidst heavily altered olivine pseudomorphs. Note phlogopite phenocrysts. (f) Square shaped serpentinised dolomite xenolith within an inequigranular kimberlite matrix. Abbreviations: Au – kimberlite autolith, fOl – furruginised olivine, hOl – haematitised olivine, Ol – Olivine, Ph – phlogopite, SpD – serpentinised dolomite.

 
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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