caa a22 4500 388025174 CHVBK 20180307124936.0 cr unu---uuuuu 161130e199807 xx s 000 0 eng 10.1017/S0032247400025699 doi S0032247400025699 pii (NATIONALLICENCE)cambridge-10.1017/S0032247400025699 Tube-fed pahoehoe lava-flow features of Azorella Peninsula, Heard Island, southern Indian Ocean [Elektronische Daten] Azorella Peninsula on Heard Island in the sub-Antarctic comprises basaltic scoria that is overlain by basalt flows. Typical tube-fed pahoehoe flows characteristic of some Hawaiian-type volcanoes occur. The volcanic landforms of the peninsula include highly degraded volcano remnants and undissected scoria cones, pahoehoe flows, lava rises, tumuli, open vertical volcanic conduits, and lava tubes. Features produced by lava inflation are widespread but are generally of low topographic relief. Many detailed lava-flow features are preserved in dramatically fresh condition within the protected environment of lava tubes. They highlight the efficacy of the lava tubes in maintaining high temperatures and low viscosity of the flowing lava. The lava tubes on Heard Island are the only features of their kind hitherto recorded from Antarctic and sub-Antarctic latitudes. Copyright © Cambridge University Press 1998 Kiernan Kevin Geomorphology and Quaternary Science Research Unit, Department of Geography and Environmental Science, University of Newcastle, Callaghan, NSW 2308, Australia McConnell Anne Geomorphology and Quaternary Science Research Unit, Department of Geography and Environmental Science, University of Newcastle, Callaghan, NSW 2308, Australia Yates Tony 34 Orangedale Road, Lesmurdie, Western Australia 6076, Australia Polar Record Cambridge University Press 34/190(1998-07), 225-236 0032-2474 34:190<225 1998 34 POL https://doi.org/10.1017/S0032247400025699 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1017/S0032247400025699 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Kiernan Kevin Geomorphology and Quaternary Science Research Unit, Department of Geography and Environmental Science, University of Newcastle, Callaghan, NSW 2308, Australia NATIONALLICENCE 700 1- McConnell Anne Geomorphology and Quaternary Science Research Unit, Department of Geography and Environmental Science, University of Newcastle, Callaghan, NSW 2308, Australia NATIONALLICENCE 700 1- Yates Tony 34 Orangedale Road, Lesmurdie, Western Australia 6076, Australia NATIONALLICENCE 773 0- Polar Record Cambridge University Press 34/190(1998-07), 225-236 0032-2474 34:190<225 1998 34 POL CC0 http://creativecommons.org/publicdomain/zero/1.0 nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-cambridge