Comparative analysis of the Late Cretaceous to Recent post-breakup basin evolution of the South-American and S-African margin of the southern Atlantic

该项目的重点是对巴西南部近海Pelotas和Santos盆地解体后的构造和地层记录与纳米比亚近海和安哥拉南部解体后大陆边缘序列进行区域比较。对Florianopolis-Walvis Ridge火山复合体南部和北部精选的具有代表性的2D地震剖面的构造地层学分析将提供控制分裂后近海边缘发展的关键因素的盆地到盆地的全面记录，这些因素包括边缘结构、随时间的沉降发展、沉积物流入和储存模式、盆地填充类型(例如盐分系统和非盐系统；富碳酸盐系统和碎屑系统)和海平面波动。利用构造-地层联合反剥法综合、量化和权衡上述因素对不同研究点边缘发育的影响。

This project focuses on a regional comparison between the post-breakup tectonic and stratigraphic record archived in the Pelotas and Santos basins offshore southern Brazil and the post-breakup continental margin successions of offshore Namibia and southern Angola. Tectonic-stratigraphic analysis of selected, representative 2D seismic transects both south and north of the Florianopolis - Walvis Ridge volcanic complex will provide a comprehensive basin-to-basin documentation of the key factors controlling the post-breakup offshore margin development including the margin configuration, subsidence development through time, sediment influx and storage patterns, type of basin fill (e.g. salt vs. non-salt systems; carbonate-rich vs. clastics-dominated systems) and sea-level fluctuations. Combined tectonic-stratigraphic backstripping will be used to integrate, quantify and weigh the influence of the above factors on the margin development at the different study sites.