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

近年来，人们对 解决各种可能的原因的问题 冲积盆地充填物的异周期变化（例如， 构造、气候、沉降、地壳运动）。 的一种方法 这个问题一直是定量的发展， 沉积物充填的物理模型 盆地，但这些模型已经发展得远远超出了 可以用来测试和完善它们的数据。 有一个 持续需要新的高分辨率数据集， 用于评估这些模型的基本预测。 这个项目的主要目标是产生这样一个数据集 从第三纪冲积层系统的极好暴露， 西班牙埃布罗盆地东南缘。 PI将收集 紧密间隔的古地磁剖面和测量 砾石分布和河道特征 在至少两个相邻的冲积扇中， 不同的尺寸。 这些数据，加上正在进行的建模 努力，由PI的将提供洞察力如何各种 异源环化的原因可以区分， 特别是对确定真正的“同构造” 企业集团。

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.