Geochemistry of tertiary tholeiites and picrites from Qeqertarssuaq (Disko Island) and Nuussuaq, West Greenland with implications for the mineral potential of comagmatic intrusions

• Main Authors: Lightfoot, P C, Hawkesworth, Chris, Olshefsky, K, Green, T, Doherty, W, Keays, R R
• Format: Article in Journal/Newspaper
• Language: English
• Published: 1997
• Subjects: CONTINENTAL FLOOD BASALTS; TRACE-ELEMENT; NORILSK REGION; SIBERIAN TRAP; ISOTOPIC EVIDENCE; INSIZWA COMPLEX; ICELAND PLUME; METALLIC IRON; MANTLE PLUME; SR-ISOTOPE; Asuk; Greenland; Norilsk; Nuussuaq; Vaigat; Iceland; norilsk
• Online Access: https://risweb.st-andrews.ac.uk/portal/en/researchoutput/geochemistry-of-tertiary-tholeiites-and-picrites-from-qeqertarssuaq-disko-island-and-nuussuaq-west-greenland-with-implications-for-the-mineral-potential-of-comagmatic-intrusions(c9b6a612-b067-4b0f-9a6c-c098c94388af).html

Tertiary continental flood basalts on Qeqertarssuaq and Nuussuaq in West Greenland contain similar to 3 km of picrites and variably contaminated tholeiites. The picrites are in the Naujanguit member of the Vaigat Formation and they have 7-29 wt% MgO, La/Sm = 0.9-2.1, and Nd-143/Nd-144 = 0.51263-0.51...