A tuff cone erupted under frozen-bed ice (northern Victoria Land, Antarctica): linking glaciovolcanic and cosmogenic nuclide data for ice sheet reconstructions

• Published in: Bulletin of Volcanology
• Main Authors: Smellie, J. L., Rocchi, S., Johnson, J. S., Di Vincenzo, G., Schaefer, J. M.
• Format: Article in Journal/Newspaper
• Language: English
• Published: 2018
• Subjects: Glaciovolcanism; Subglacial explosive eruption; Mt. Melbourne volcanic field; Pleistocene; Environmental change; 40Ar-39Ar; Cosmogenic dating; Polythermal glacier; Harrow Peaks; Victoria Land; Antarc*; Antarctica; Ice Sheet
• Online Access: http://hdl.handle.net/11568/885258; https://doi.org/10.1007/s00445-017-1185-x; https://link.springer.com/article/10.1007%2Fs00445-017-1185-x

The remains of a small volcanic centre are preserved on a thin bedrock ridge at Harrow Peaks, northern Victoria Land, Antarctica. The outcrop is interpreted as a monogenetic tuff cone relict formed by a hydrovolcanic (phreatomagmatic) eruption of mafic magma at 642 ± 20 ka (by 40Ar-39Ar), correspond...