High-resolution sequence stratigraphy of stacked fan delta sequences, Corinth Rift, Greece

希腊科林斯裂谷堆积扇三角洲层序的高分辨率层序地层学

• 批准号: 43434266
• 负责人: Dr. Johan H. ten Veen
• 金额: --
• 依托单位: TNO.NL - Netherlands Institute of Applied Geoscience
• 依托单位国家: 德国
• 项目类别: Research Grants
• 财政年份: 2007
• 资助国家: 德国
• 起止时间: 2006-12-31 至 2010-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/43434266?language=en
• 关键词: resolution; sequence; stratigraphy; stacked; fan

The effects of tectonism, sediment supply and eustacy on accommodation changes are often difficult to untangle. In this aspect fan deltas are valuable because they are sensitive recorders of depositional variability around the continental-marine (or lacustrine) transition. Here we propose a pilot study that is aimed at the recognition, correlation and high-resolution dating of depositional sequences from basin margin (shelf) to basin centre. For this purpose the Plio-Pleistocene fan delta successions in the Gulf of Corinth are highly appropriate since they are relatively small, well accessible and enable good visual correlations of the entire delta-to-prodelta transect. Drowning or submergence phases of conglomeratic delta topset beds will be detected through cathodolumiscence analyses of the cement composition and –stratigraphy. The expression of depositional sequences in the pro-delta facies will be studied by means of gamma-ray spectrometry, XRD analysis of the clay fraction and palynofacies. The results of these methods can be used as proxies for Milankovitch cyclicity, climatic variability, or the continental influence. It is supposed that the nature of the topset- and prodelta sequences and their correlation will give important information on controls on sediment supply and accommodation changes. Our results will be incorporated into a conceptual sequence stratigraphic framework.

文本主义，供应和eustenacy onges的效果是a tountangle，因为围绕大陆陆地（或劳斯特林）的敏感录音机，旨在识别和高分辨率。架子）在科林斯湾构成plio-ple-pelecene Delta依次是非常合适的伽玛射线光谱d将在米兰科维奇环境序列，气候变异性或大陆的影响下，将其加入被整合到概念序列地层框架中。