[Abstract] We've studied the conditions about dimensions and support ofan underground mine of roofing slate in Galice, worked by rooms with continuous pillars. The rock mass was characterized by the empiric and analitic ...

[Abstract] The structure shown by the Tertiary basins ofNW Spain is in agreement with a N-s shortening. These structures are specially well exposed in As Pontes and Meirama basins which belortg to a group of basins genetically ...

[Abstract] The actual work is developing the environmental study carried out to prepare the restoration Plan of a gravel pit from the Madrid Community. To restore this gravel pit, called «Torre Blanca» offers great difficulty ...

[Abstract] The A Espenuca two-mica granite, situated in the northern sector ofthe Central Iberian Zone, was variably deformed by the Valdoviño Fault. Deformation intensity is observed to increase from W to E, also being ...

The Hercynian basement of the Iberian Peninsula has undergone different stages of supergenic weathering which has given rise to a superposition of several «weathering mantles». Remnants ofan old weathering mantle, Mesozoic ...

[Abstract] This piece analizes the possibilities of mining exploitation in a little outcrop of rOSfl granite. The zone has been researched, recognizing the main structural discontinuities, and characterizing the rock mass ...

[Abstract] Magma emplacement within the Linares granite, a part of the Los Pedroches Batholith, took place in the sequence: biotite granodiorite with microgranular enclaves, biotite monzogranites, and dike swarm complexo ...

Geological cross-section through the western border of the Vasco-Cantabrian Basin show the existence ofthe extensional faults active during Permo-Mesozoic sedimentation, as well as the tectonic inversion of these faults ...

In the Catalan and in the Andorran Pyrenees, as in the ariegian one, there is an enormous conjunct ofold mining explotations, dedicated to the extraction and to the benefit of the iron minerals. This explotations had his ...