A thin predominantly cold-based Late Miocene East Antarctic ice sheet inferred from glaciovolcanic sequences in northern Victoria land
| Autor: | Smellie, J.L. (1), Rocchi, S. (2), Gemelli, M. (2), Di Vincenzo, G. (3), Armienti, P. (2) |
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| Jazyk: | angličtina |
| Rok vydání: | 2011 |
| Předmět: | |
| Zdroj: | Palaeogeography, palaeoclimatology, palaeoecology 307 (2011): 129–149. info:cnr-pdr/source/autori:Smellie, J.L. (1); Rocchi, S. (2); Gemelli, M. (2); Di Vincenzo, G. (3); Armienti, P. (2)/titolo:A thin predominantly cold-based Late Miocene East Antarctic ice sheet inferred from glaciovolcanic sequences in northern Victoria land/doi:/rivista:Palaeogeography, palaeoclimatology, palaeoecology/anno:2011/pagina_da:129/pagina_a:149/intervallo_pagine:129–149/volume:307 |
| Popis: | Glaciovolcanic sequences are widespread in northern Victoria Land and their interpretation enables estimates of past ice thicknesses and other defining parameters of the coeval ice sheet to be made with considerable certainty. The terrestrial sequences are mainly Late Miocene in age (c. 12-5Ma) and conform to five main types: aa lava-fed deltas, volcanic sheet-like sequences, a glaciolacustrine sequence, scoria cones and tuff cones. Apart from the environmentally undiagnostic pyroclastic cones, the volcanic sequences were erupted in association with a glacial cover that was typically, and possibly never much more than, a few hundred metres thick ( |
| Databáze: | OpenAIRE |
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