High-resolution rock magnetic cyclostratigraphy in an Eocene flysch, Spanish Pyrenees

High‐resolution rock magnetic cyclostratigraphy in an Eocene flysch, Spanish Pyrenees

[1] A rock magnetic cyclostratigraphy, based on anhysteretic remanent magnetization (ARM) intensity variations, was developed for the Eocene Arguis Formation in the Spanish Pyrenees. The Arguis Formation was sampled for ARM cyclostratigraphy, rock magnetic, and paleomagnetic analyses. Rock magnetic measurements indicate that the dominant magnetic mineral controlling the ARM cyclostratigraphy is...

Stratified Scree in the Central Spanish Pyrenees: Paleoenvironmental Implications

Recent Variations of Snowpack Depth in the Central Spanish Pyrenees

The evolution of snow depth in the central Spanish Pyrenees was analyzed using measurements from 106 snow stakes over a period of 14 yr (1985–1999). Relationships were considered between the regional series of snow depths at the end of winter and in the middle of spring with respect to precipitation and temperature in previous months. Both variables explained a large percentage of the interannu...

Runoff generation in an intensively disturbed, abandoned farmland catchment, Central Spanish Pyrenees

This paper studies the hydrological response to rainstorm events of a small experimental catchment in the Central Spanish Pyrenees. The Arnás catchment was cultivated until 40 years ago, and then abandoned and affected by plant recolonisation, especially shrubs. A rainfall of a few mm is enough to produce a sudden increase in discharge, due most probably to the steep gradients and the small siz...

Analysis of Rock Microstructure Using High- Resolution X-ray Tomography

In previous work we have described and validated robust techniques for partitioning the pore space of a porous material into simple regions, thereby allowing it to be represented by a network of simple building blocks. The primary purpose of this analysis is the generation of a pore-throat network for modelling immiscible multi-phase fluid displacements. However, combining our partitioning algo...