Gondwana break-up related magmatism in the Falkland Islands

• Published in: Journal of the Geological Society
• Main Authors: Hole, M. J., Ellam, R. M., MacDonald, D. I. M., Kelley, S. P.
• Format: Article in Journal/Newspaper
• Language: unknown
• Published: 2015
• Subjects: Theron Mountains; Antarc*; Antarctica
• Online Access: https://oro.open.ac.uk/44332/; https://oro.open.ac.uk/44332/1/Hole%20Ellam%20MacDonald%20and%20Kelley.pdf; https://doi.org/10.1144/jgs2015-027

Jurassic dykes (c. 182 Ma) are widespread across the Falkland Islands and exhibit considerable geochemical variability. Orthopyroxene-bearing NW–SE-oriented quartz-tholeiite dykes underwent fractional crystallization at >1 GPa, and major element constraints suggest that they were derived by melti...