COLLABORATIVE RESEARCH: Effects of Basin Subsidence, Tectonics and Time Scale on Gravel Progradation, Ebro Basin,N. E. Spain

合作研究：盆地沉降、构造和时间尺度对砾石进积的影响，埃布罗盆地，N。

• 批准号: 9218298
• 负责人: Christopher Paola
• 金额: $ 4.48万
• 依托单位: University of Minnesota-Twin Cities
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1993
• 资助国家: 美国
• 起止时间: 1993-03-01 至 1995-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9218298&HistoricalAwards=false
• 关键词: COLLABORATIVE; RESEARCH; Effects; Basin; Subsidence

In recent years there has been a renewed interest in the problem of unraveling the various possible causes of allocyclic variability in alluvial basin fills (e.g. tectonics, climate, subsidence, eustasy). One approach to this problem has been the development of quantitative, physically based models for the filling of sedimentary basins, but these models have already evolved well beyond the data available to test and refine them. There is a continuing need for new high-resolution data sets that can be used to evaluate the basic predictions of these models. The main goal of this project is to produce such a data set from the superbly exposed Tertiary alluvial systems of the SE margin of the Ebro Basin, Spain. PI's will collect closely spaced paleomagnetic sections and measurements of gravel distribution and channel characteristics in three dimensions, in at least two adjoining alluvial fans of different sizes. These data, together with ongoing modeling efforts, by the PI's will provide insight on how various causes of allocyclic progradation can be distinguished and in particular on the identification of true "syntectonic" conglomerates.

近年来，人们对解开冲积盆地充填物非循环变异的各种可能原因（例如构造、气候、沉降、海平面平衡）的问题重新产生了兴趣。 解决这个问题的一种方法是开发基于物理的定量模型来填充沉积盆地，但这些模型的发展已经远远超出了可用于测试和完善它们的数据。 人们持续需要新的高分辨率数据集来评估这些模型的基本预测。 该项目的主要目标是从西班牙埃布罗盆地东南边缘暴露的第三纪冲积系统中生成这样的数据集。 PI 将在至少两个不同大小的相邻冲积扇中收集紧密间隔的古地磁剖面，并在三个维度上测量砾石分布和河道特征。 这些数据与 PI 正在进行的建模工作一起，将提供关于如何区分异环增殖的各种原因的见解，特别是关于识别真正的“同构造”集团的见解。