The Neoproterozoic assembly of Gondwana and its relationship to the Ediacaran–Cambrian radiation
The Neoproterozoic assembly of Gondwana and its relationship to the Ediacaran–Cambrian radiation
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DOI：
10.1016/j.gr.2007.06.007
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发表时间：
2008-08
影响因子：
6.1
通讯作者：
J. Meert;B. Lieberman
中科院分区：
文献类型：
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作者：
J. Meert;B. Lieberman
冈瓦纳超大陆在元古代末期的组合为无数生物、气候、构造和地球化学变化提供了一个构造背景，这些变化导致并包括寒武纪辐射。在东非、巴西利亚、昆干和达马兰造山运动期间，冈瓦纳的多相组合形成了一个广泛的山脉链，将营养物质输送到不断变化的海洋领域。关键的进化事件的分析在此时间段显示下面的(a)几个动物展示良好的特有现象,可能根源于一个神秘的进化脉冲马(c) 580 (b)的利润率Mirovian和莫森海洋形成的轨迹的辐射埃迪卡拉动物群(c)的利润率Iapetan和海洋Mirovian olenellid三叶虫领域(d)的利润率莫森和Paleo-Asian海洋是所谓的冈瓦纳省动物群的诞生地(e)与寒武纪辐射相关的演化事件可能是由内部（生物）变化驱动的，但由于埃迪卡拉-寒武纪期间发生的地球化学、生态和构造变化，辐射增强，生态系统变得更加复杂。
The assembly of the Gondwana supercontinent during the waning stages of the Proterozoic provides a tectonic backdrop for the myriad biological, climatological, tectonic and geochemical changes leading up to, and including, the Cambrian radiation. A polyphase assembly of Gondwana during the East Africa, Brasiliano, Kuungan and Damaran orogenies resulted in an extensive mountain chain which delivered nutrients into a shifting oceanic realm. An analysis of key evolutionary events during this time period reveals the following (a) several fauna show well established endemism that may be rooted in a cryptic evolutionary pulse (c). 580 Ma (b) the margins of the Mirovian and Mawson Oceans formed the locus of radiation for the Ediacaran fauna (c) the margins of the Iapetan and Mirovian oceans form the olenellid trilobite realm (d) the margins of the Mawson and Paleo-Asian oceans are the birthplace of the so-called Gondwana Province fauna (e) evolutionary events associated with the Cambrian radiation were likely driven by internal (biological) changes, but radiation was enhanced and ecosystems became more complex because of the geochemical, ecological and tectonic changes occurring during Ediacaran–Cambrian periods.