Zobrazeno 1 - 10
of 155
pro vyhledávání: '"John L. Smellie"'
Publikováno v:
Geochemistry, Geophysics, Geosystems, Vol 25, Iss 7, Pp n/a-n/a (2024)
Abstract The Pleiades Volcanic Field is made up of some 20 monogenetic, partly overlapping scoria and spatter cones, erupted in the last 900 ka, cropping out from the ice close to the head of the Mariner Glacier in northern Victoria Land, Antarctica.
Externí odkaz:
https://doaj.org/article/efaeed2abe6f43988ba400c084a5578e
Publikováno v:
Frontiers in Earth Science, Vol 11 (2023)
Externí odkaz:
https://doaj.org/article/aa16bc3fdd9940e48b2b0ef35551a65d
Autor:
John L. Smellie, Adam P. Martin, Gianfranco Di Vincenzo, Dougal B. Townsend, Matthew T. Heizler, Dawn C. S. Ruth
Publikováno v:
Bulletin of Volcanology. 84
Mason Spur is a deeply eroded Middle Miocene to Pleistocene (c. 13 to 0.37 Ma) volcanic complex in southern Victoria Land, within the West Antarctic Rift System (WARS). The oldest rocks include a large volume of trachyte ignimbrites that provided abu
Autor:
John L. Smellie, K. D. Collerson
Publikováno v:
Geological Society, London, Memoirs. 55:615-628
Gaussberg is a nunatak composed of lamproite pillow lava situated on the coast of East Antarctica. It is the most isolated Quaternary volcanic centre in Antarctica but it is important palaeoenvironmentally and petrologically out of all proportion to
Publikováno v:
Digital.CSIC. Repositorio Institucional del CSIC
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Antarctica has undergone several important phases of volcanism throughout its long history. It was formerly at the heart of Gondwana but, from early Jurassic time (c. 200 Ma), it commenced the prolonged process of disintegration, which resulted in th
Autor:
John L. Smellie
Publikováno v:
Geological Society, London, Memoirs. 55:227-284
Following more than 25 years of exploration and research since the last regional appraisal, the number of known subaerially exposed volcanoes in the northern Antarctic Peninsula region has more than trebled, from less than 15 to more than 50, and tha
Autor:
John L. Smellie, Malcolm J. Hole
Publikováno v:
Geological Society, London, Memoirs. 55:305-325
The Antarctic Peninsula is distinguished by late Neogene volcanic activity related to a series of northerly younging ridge crest–trench collisions and the progressive opening of ‘slab windows’ in the subjacent mantle. The outcrops were amongst
Autor:
Adam P. Martin, John L. Smellie
Publikováno v:
Geological Society, London, Memoirs. 55:415-446
The Erebus Volcanic Province is the largest Neogene volcanic province in Antarctica, extending c. 450 km north–south and 170 km wide east–west. It is dominated by large central volcanoes, principally Mount Erebus, Mount Bird, Mount Terror, Mount
Autor:
Sergio Rocchi, John L. Smellie
Publikováno v:
Geological Society, London, Memoirs. 55:383-413
Cenozoic magmatic rocks related to the West Antarctic Rift System crop out right across Antarctica, in Victoria Land, Marie Byrd Land and into Ellsworth Land. Northern Victoria Land, located at the northwestern tip of the western rift shoulder, is un
Autor:
John L. Smellie
Publikováno v:
Geological Society, London, Memoirs. 55:19-42
Since Jurassic time (c. 200 Ma), Antarctica has had a greater diversity of volcanism than other southern continents. It includes: (1) voluminous mafic and felsic volcanism associated with the break-up of Gondwana; (2) a long-lived continental margin