Sequence stratigraphy of the northern part of the ecuadorian coastal basins combining seismic and well log data

Geological exploration on the Ecuadorian coasts has generated increasing interest due to its complex geological and stratigraphic history, particularly in the Borbón Esmeraldas Basin, located in northern Ecuador. This region stands out for its rich sequential stratigraphy formed by a back-arc, offering a unique window into the depositional and tectonic processes that have shaped the basin over millions of years. Understanding these stratigraphic sequences is fundamental to advancing our geological knowledge and elucidating the dynamics of environmental changes. The study adopts an integrated methodology, using seismic analysis and well logs, complemented by advanced geophysical techniques such as Noise2Void and Spectral Blueing. This approach improves the quality of subsurface images and facilitates precise geological interpretations of the sequential stratigraphy, allowing for a deeper investigation of the region's complex stratigraphic sequences. The discoveries indicate the geological transformation of the Borbón-Esmeraldas basin from the Late Cretaceous to the Pleistocene, highlighting a notable improvement in the quality of seismic data thanks to advanced techniques that simplify geological interpretation. Five stratigraphic sequences have been identified, along with 5 unconformities, each related to a tectonic phase. These have been correlated with variations in sea level and with specific geological formations, showing a complex relationship between sedimentary deposition, tectonic activity, and erosion. This analysis provides a comprehensive view of the environmental and depositional changes.

• 主要作者: Pijal Morejón, Daniel Alexander (author)
• 格式: bachelorThesis
• 語言: eng
• 出版: 2024
• 主題: Estratigrafía secuencial; Datos sísmicos; Registros de pozo; Sequential stratigraphy; Seismic data; Well-logs
• 在線閱讀: http://repositorio.yachaytech.edu.ec/handle/123456789/831