The Petrogenesis of the Kirwan Basalts of Dronning Maud Land, Antarctica

• Published in: Journal of Petrology
• Main Authors: HARRIS, CHRIS, MARSH, JULIAN S., DUNCAN, ANDREW R., ERLANK, ANTHONY J.
• Format: Text
• Language: English
• Published: Oxford University Press 1990
• Subjects: Articles; Dronning Maud Land; Kirwanveggen; Antarc*; Antarctica
• Online Access: http://petrology.oxfordjournals.org/cgi/content/short/31/2/341; https://doi.org/10.1093/petrology/31.2.341

The 420 m thick sequence of Kirwan basalt crops out along the southernmost 50 km of the Kirwanveggen Escarpment (74�S, 6�W). There is little variation in major element chemistry of these basalts (SiO 2 49�3–51�6 wt.%; MgO 5�1–6�6 wt.%), but the concentrations of certain incompatible elements (e.g.,...