238U-230Th-226Ra-210Pb constraints on the genesis of high-Mg andesites at White Island, New Zealand

• Published in: Chemical Geology
• Main Authors: Heyworth, Z, Turner, S, Schaefer, B, Wood, B, George, R, Berlo, K, Cunningham, H, Price, R, Cook, C, Gamble, J
• Format: Article in Journal/Newspaper
• Language: English
• Published: 2016
• Subjects: New Zealand; Pacific; White Island
• Online Access: https://doi.org/10.1016/j.chemgeo.2007.05.012; https://ora.ox.ac.uk/objects/uuid:8074a6e5-4d75-4271-ac51-4d4991043205

On White Island, New Zealand, the intensified period of strombolian-volcanian and phreatomagmatic explosive activity that commenced in March 1977 led to eruption of unusually primitive, high-Mg andesites. These are Fo80-93 olivine-saturated rocks that have MgO contents up to 10% (Mg# = 65-71) and Si...