Integrated basin analysis of the Brazilian Atlantic continental margin, sequence stratigraphy and numerical basin modeling

巴西边缘记录了南大西洋西部边缘从侏罗纪到近代的裂谷漂移发育过程。本项目的重点是坎波斯、桑托斯和佩洛塔斯盆地的近海地震资料，以定性分析这一裂谷边缘的发育及其关键控制因素。地震地层学和测井分析、盆地模拟和地层模拟是关键方法。它们将应用于三个现有的、具有代表性的、高分辨率的、带有校准井的300-340公里长的地震断面。地震线覆盖了裂谷到漂流盆地的充填物，分布在东北向西南方向1200公里以上，以解释沿西南大西洋边缘控制过程的大规模横向变化。主要目标包括一个高分辨率层序地层学模型和一个综合数值盆地模型，将容纳空间和沉积通量与大洋或克拉通领域的板块构造重构联系起来。该项目有望在裂谷边缘及其沉积过程的时间和空间发展方面取得新的、普遍适用的结果。该项目与下列配套项目密切相关：(I)南大西洋东部共轭边缘，(Ii)乌拉圭和阿根廷南部边缘，(Iii)巴西克拉通上源区的沉陷/隆升历史，以及(Iv)深部岩石圈-地幔过程的数值模拟。

The Brazilian margin records the rift to drift development of the western South Atlantic margin from Jurassic to recent times. This project focuses on offshore seismic data in the Campos, Santos and Pelotas Basins in order to qualitatively analyse the development of this rifted margin and its key controlling factors. Seismostratigraphic and well log analysis, basin modeling and stratigraphic simulation represent the key methodologies. They will be applied to three available, representative and high-resolution 300-340 km long seismic transects with calibrating wells. Seimic lines cover the rift-to-drift basin fill and are spread NE-SW over 1200 km in order to account for large-scale lateral variations in controlling processes along the western South Atlantic margin. The main objectives include a high-resolution sequence stratigraphic model and an integrated numerical basin model, linking accommodation and sedimentflux to plate-tectonic reconfigurations in the oceanic or cratonic realm. The project promises new, generally applicable results on the temporal and spatial development of rifted margins and their sedimentary processes. The project is closely related to companion projects (i) on the conjugate eastern South Atlantic margin, (ii) the southerly adjacent Uruguayan and Argentinian margins, (iii) the subsidence/uplift history of source areas on the Brazilian craton and (iv) numerical modeling of deep lithosphere-mantle processes.