地质学
俯冲
火山作用
裂谷
岩浆作用
地球化学
岩石圈
火山
大洋地壳
构造学
大陆地壳
地幔(地质学)
大陆边缘
板块构造
地震学
热点(地质)
地幔柱
古生物学
作者
John L. Smellie,Kurt S. Panter,Adelina Geyer
出处
期刊:Geological Society, London, Memoirs
[Geological Society of London]
日期:2021-01-01
卷期号:55 (1)
被引量:6
摘要
This memoir is the first to review all of Antarctica9s volcanism between 200 million years ago and the Present. The region is still volcanically active. The volume is an amalgamation of in-depth syntheses, which are presented within distinctly different tectonic settings. Each is described in terms of (1) the volcanology and eruptive palaeoenvironments; (2) petrology and origin of magma; and (3) active volcanism, including tephrochronology. Important volcanic episodes include: astonishingly voluminous mafic and felsic volcanic deposits associated with the Jurassic break-up of Gondwana; the construction and progressive demise of a major Jurassic to Present continental arc, including back-arc alkaline basalts and volcanism in a young ensialic marginal basin; Miocene to Pleistocene mafic volcanism associated with post-subduction slab-window formation; numerous Neogene alkaline volcanoes, including the massive Erebus volcano and its persistent phonolitic lava lake, that are widely distributed within and adjacent to one of the world9s major zones of lithospheric extension (the West Antarctic Rift System); and very young ultrapotassic volcanism erupted subglacially and forming a world-wide type example (Gaussberg).
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