“…Palaeoproterozoic mafic dykes of the eastern Dharwar Craton (EDC) have been studied in detail for their petrology and geochemistry (Chatterjee & Bhattacharji, ; Radhakrishana et al, ; French & Heaman, ; Piispa et al, ; Srivastava, Jayananda, Gautam, Gireesh, & Samal, ; Srivastava, Jayananda, Gautam, & Samal, ; Srivastava & Gautam, , and references therein) and geochronology (Halls et al, ; French & Heaman, ; Kumar, Hamilton, & Halls, ; Kumar, Nagaraju, Besse, & Bhaskar Rao, ; Kumar, Nagaraju, Srinivasa Sarma, & Davis, ; Kumar, Parashuramulu, & Nagaraju, ; Srivastava, Hamilton, & Jayananda, , Srivastava, Jayananda, Gautam, Gireesh, & Samal, ; Srivastava, Jayananda, Gautam, & Samal, ; Srivastava & Gautam, ; Nagaraju, Parashuramulu, Babu, & Narayana, ; Nagaraju, Parashuramulu, Kumar, & Sarma, ; Söderlund et al, ); however, very limited similar information is available for the western Dharwar Craton (WDC; Devaraju, Alapieti, Sudhakara, & Kaukonen, ; French & Heaman, ; Halls et al, ; Naqvi, Divakara Rao, Satyanarayana, & Hussain, ; Radhakrishna, ; Radhakrishna, Balasubramonian, Joseph, & Krishnendu, ; Samal et al, , and references therein). Therefore, a major NE–SW to ENE–WSW trending Palaeoproterozoic mafic dyke swarm exposed in the WDC, particularly in and around southern region (Tiptur–Hassan–Chikmagalur sector; see Figure ), have been sampled for detailed petrological and geochemical studies.…”