About this title - Volcanism in Antarctica: 200 Million Years of Subduction, Rifting and Continental Break-up

About this title - Volcanism in Antarctica: 200 Million Years of Subduction, Rifting and Continental Break-up
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关于此标题 - 南极洲的火山活动:2 亿年的俯冲、裂谷和大陆分裂

DOI:
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发表时间:
2021
期刊:
Memoirs
影响因子:
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通讯作者:
R. Hanson
R. Hanson
中科院分区:
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文献类型:
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作者:
D. Elliot;R. Hanson

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这本回忆录是第一本回顾2亿年前至今南极洲火山活动的书。该地区的火山仍然活跃。该卷是一个融合了深入的综合,这是在明显不同的构造环境。每一个都描述了(1)火山学和喷发古环境;(2)岩石学和岩浆起源;(3)活火山作用,包括火山灰年代学。重要的火山事件包括:与冈瓦纳侏罗纪解体有关的大量镁铁质和长英质火山沉积;侏罗纪至现代大陆弧的建造和逐渐消亡,包括弧后碱性玄武岩和年轻硅铝边缘盆地的火山活动;与俯冲后板窗形成有关的中新世至更新世镁铁质火山活动;众多的新近纪碱性火山,包括巨大的埃里伯斯火山及其持久的响岩熔岩湖,广泛分布在世界上主要的岩石圈伸展带之一内或附近(西南极裂谷系);和非常年轻的超钾质火山喷发冰川下,形成了一个世界范围的典型例子(高斯伯格)。
This memoir is the first to review all of Antarctica's 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 world's 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).