We spent the majority of the day mapping the South side of Lafetoga, after bringing a small rock set on board in the morning: basalts with feldspar, clinopyroxene, and relatively fresh olivine, from an isolated guyot (Fa'atiu), that had small parasitic cones covering it. There is a good chance the fresher lavas represent some type of rejuvenation, since the guyot's main plateau was around 800 m deep. Mapping is still hampered by the sea state, particularly when the ship pitches, the mapping quality goes down fast.
- Jasper Konter
Created by Anthony Koppers on Saturday, 17 August 2013
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