Correlations between the classic Paraná and Cape–Karoo sequences of South America and southern Africa and their basin infills flanking the Gondwanides: du Toit revisited
Correlations between the classic Paraná and Cape–Karoo sequences of South America and southern Africa and their basin infills flanking the Gondwanides: du Toit revisited
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南美洲和南部非洲的经典巴拉那和卡鲁角序列与其冈瓦尼德侧翼盆地填充物之间的相关性：杜托伊特重温
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发表时间：
2008
期刊：
影响因子：
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通讯作者：
M. de Wit
中科院分区：
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作者：
E. J. Milani;M. de Wit
20世纪早期，Alexander du Toit开创性地利用南美洲和非洲南部古生代-中生代盆地之间的相关性，支持了大陆漂移的初步概念和冈瓦纳大陆统一论的提出。新的地层工具和数据现在可以用来进一步梳理出相似性和差异性，以重建帕拉纳<e:1>和卡鲁角盆地的详细历史。反过来，这些知识也可以用来增加我们对冈瓦纳的起源和进化的理解。构造和地层学的最新进展表明，这两个盆地沿一个共同的早古生代冈瓦纳边缘共同演化，面向泛海盆地。此后，这一边缘转变为一系列连接的前陆盆地，与冈瓦尼德的演化相结合。由于冈瓦尼德构造史的时空差异，其前陆序列差异较大。直到古生代末期，这两个盆地才演化并合并成一个大陆规模的、真正的克拉通内陆相冈瓦纳盆地，并一直持续到白垩纪早期。这种共同的历史在早白垩纪南大西洋开放期间再次被打乱。
Abstract Early during the twentieth Century, pioneering correlations between the Palaeozoic–Mesozoic basins of South America and southern Africa were used by Alexander du Toit to support the initial concepts of continental drift and the proposal of a united Gondwana continent. New stratigraphic tools and data can now be used to further tease out similarities and differences to reconstruct the detailed histories of these, the Paraná and Cape–Karoo basins. In turn this knowledge can be used also to increase our understanding of the origin and evolution of Gondwana. Recent advances in tectonics and stratigraphy showed that both basins evolved together along a common early Palaeozoic Gondwana margin facing the Panthalassa. Thereafter, this margin was transformed into a series of linked foreland basins coupled to the evolution of the Gondwanides. In detail, the foreland successions differ considerably due to spatial and temporal differences in tectonic histories along the Gondwanides. Only towards the end of the Palaeozoic did both basins evolve and merge into a single continental-scale, and truly intracratonic, terrestrial Gondwana basin that persisted until the early Cretaceous. This shared history was once again disrupted in the Early Cretaceous during the opening of the South Atlantic Ocean.