Late Cretaceous to Recent post-breakup evolution of the African S-Atlantic margin: integrating onshore field studies; sequence development, offshore seismic data, numerical dating and modelling

在纳米比亚南大西洋边缘部分断裂之后，记录了多个阶段的火山活动、隆起和沉降-与已公布的其他断裂后大陆边演替的例子相比，这些特征被认为是非典型的。目前尚不清楚这些地球动力过程是否仅具有区域性或更广泛的南大西洋洲际重要性。现有的低温热年代分析、基岩表面的宇宙成因同位素测量以及解体后层序的构造和地层分析，可通过以下方式加以完善和校准：（A）解释海上工业地震和测井数据（最上面的2s TWT）和（B）陆上沉积档案的分析，如破碎后河流沉积序列、海洋阶地、风成岩、古海崖，下切谷和正断层上盘的同构造地层。陆上和海上地层都提供了一个高分辨率的档案馆的过程伴随着分裂和分裂后的南大西洋边缘的演变。许多沿海的海洋阶地含有可测年的材料，适合结合ESR和OSL测年进行生物地层学分析。海上地震结构和地层分析以及钻井数据将与详细的三维地层和结构分析以及动态逆向和正向建模相结合，这构成了组合三维陆上-海上表面-地下模型的基础。

Multiple phases of volcanism, uplift and subsidence are recorded after the breakup of the Namibian South Atlantic margin segment – features which are regarded as atypical when compared to published examples of other post-breakup continental margin successions. It is currently not understood whether these geodynamic processes are only of regional or a broader, South Atlantic intercontinental importance. Existing low T thermochronometric analyses, cosmogenic isotope measurements on bedrock surfaces and tectonic and stratigraphic analysis of the post-breakup succession could be advantageously completed and calibrated by (A) the interpretation of offshore industrial seismic and well log data (uppermost 2s TWT) and (B) the analysis of onshore sedimentary archives such as post-breakup fluvial depositional sequences, marine terraces, aeolianites, palaeo-seacliffs, incised valleys and syntectonic strata in the hanging-walls of normal faults. Both, onshore and offshore strata provide a high-resolution archive of processes accompanying the breakup and post-breakup evolution of the South Atlantic margin. Many of the coastal marine terraces contain dateable material suitable for biostratigraphic analysis combined with ESR and OSL dating. Offshore seismic structural and stratigraphic analysis and well data will be integrated with a detailed 3D stratigraphic and structural analysis as well as dynamic retro- and forward modelling which forms the basis for a combined 3D onshore-offshore surface-subsurface model.