Serafín Monterrubio Pérez

• University of Salamanca

This work aims to establish the role of liquefaction in a shallow submarine environment defined by a canyon head reaching the coast. The study area is the Garrucha submarine canyon head, which is located in the western Mediterranean Sea. The potential of liquefaction is approached empirically by two methods in parallel, undrained cyclic direct simp...

Granite has been one of the most used natural stones to build heritage for centuries. This is obviously the case when granite is the main regional rock, like the case in the north of the Iberian Peninsula. The sanctuary of La Tuiza in Lubian (Zamora, northwest of Spain) was built with the granite of Calabor. This sanctuary dates from the 18th centu...

For centuries, granite has been one of the most widely used natural stones for building heritage, especially in the north of the Iberian Peninsula. The sanctuary of La Tuiza in Lubian (Zamora, northwest of Spain), built with Calabor granite, dates from the eighteenth century and was declared an Asset of Cultural Interest in 1995. The heritage impor...

The Dueñas Clay Formation is considered an example of a deposit of lacustrine continental origin. It is formed mainly by overconsolidated clays and includes feldspathic arenites, and clayey and silty levels; however, in geotechnical projects it is considered a clay unit and treated as a whole. The structure of each level was assessed in the field,...

Two Quaternary plastered contourite drifts, with terraced and low-mounded morphologies, make up the continental slope and base-of-slope in the northwestern Alboran Sea, respectively, between the Guadiaro and Baños turbidite systems, close to the Strait of Gibraltar. Considering their significant lateral extent, the link between the contourite drift...

The sedimentary instability dynamics occurring over time throughout the isolated Galicia Bank (Atlantic Ocean, NW Iberian Peninsula) have been studied using a sedimentological and geotechnical approach featuring a quantitative assessment of slope stability under different scenarios, including earthquake activity. The erosion of the scarps in the Ga...

Serpentinites are characterized by highly variable mineralogical, physical, and mechanical properties. Serpentinites from Moeche (North Western Spain) have been studied to establish their mineralogical, petrographic, and textural characteristics, as well as their physical and mechanical parameters and the factors influencing rock failure, to evalua...

A comparative study of the unidimensional compressibility of two clays of continental origin but with different geological history is presented: the Armuña Clay and the Viso Clay. The former is a quaternary deposit of smectite and illite, with very high plasticity; the latter is a miocene overconsolidated clay of intermediate plasticity and with le...

With the purpose of determining how geological processes affect the mechanical behavior of overconsolidated clays of continental origin, reconstituted, sedimented and natural samples of the Viso Clay have been studied under unidimensional compression. When sedimented, the clays adopt an structure which strength the soil, but its effect disappears w...

The Pleistocene opening of the endorheic Duero River drainage basin (northwestern Spain and central Portugal) has led to river incision, creation of steep valley sides, and development of large (> 0.1 km2) and episodically active rotational and roto-translational landslides along river reaches where a weak geological lithology has been exposed by r...

Podiform chromitites occurring in the ultramafic bodies of Calzadilla de los Barros, in the Ossa-Morena zone of the Iberian Massif (SW Iberian Peninsula), were deformed and metamorphosed together with their host rocks, leading to the development of variably complex patterns of zoning in chromite grains. These patterns consist of cores with variable...

An analog terrain model is presented to simulate different hydrogeological formations. It is useful to explain the concepts of piezometric and phreatic level, and with it It is posible to visualise some of its main geomechanical implications. We used a methacrylate urn and in it and with the aid of clays, sand and gravel, we modelized a water tank...

One of the most important multiple rotational landslides of the Duero Basin occurs at Reinoso de Cerrato. We have used tomography of electrical resistivity to define the geometry of the main fault of the landslide and to locate and confirm the existence of associated imbrications, which were compared with outcropping landslides. We present five sec...

The serpentinized peridotite massifs of Calzadilla de los Barros (Ossa-Morena zone, Iberian massif) consist of harzburgites and small dunite bodies containing Al-rich chromitite pods. Minor discordant clinopyroxenite veins cut the peridotite massifs. The chromitites show total transformation of the silicate matrix into chlorite and post-magmatic fo...

Construction on expansive soils can generally be resolved using piles. Where shallow foundations are used in these materials, the swelling pressure should be determined and the foundations designed to provide a greater pressure to counteract this. Clearly, it will also be necessary to determine the capacity of the ground to take this load. The pape...

The most commonly used serpentinites worldwide are the ones coming from India, Pakistan or Egypt due to the volume rock exploitable that is found in those countries. Spain has traditionally quarried two ultramafic massifs, one in Galicia (Verde Pirineos) and one in Andalucía (Verde Macael). Some of these quarries were small, family run business. In...

Different varieties of serpentinites present at Cabo Ortegal were studied. For many years, the 'Verde Pirineos' type has been quarried and sold commercially, but its physical characteristics do not fulfil the requirements for its use as an ornamental stone. 'Piedra de Doelo' is the local name for a serpentinite that has been quarried and used for m...

Serpentinites are very handsome rocks. They occur from the weathering of ultramafic rocks (e.g. peridotites, pyroxenites) and their origin and posterior events that affect them produce colours and textures that make these rocks usable for many building construction and structures. However, serpentinites can be very different among them, depending o...

The Los Llanos Shear Zone bounds the Cabeza Gorda and Zafra units located in the Ossa-Morena Zone (SW Iberian Massif). Within the Cabeza Gorda unit two peridotitic massifs crop out, named Sierra Cabeza Gorda and Cerro Cabrera. The mylonitic rocks consist of metamorphic and peridotitic rocks extensively deformed that exhibit a penetrative foliation....

The Peñalba roto-translational landslide is one of the large landslides that can be observed in the central area of the Duero Basin (Spain). Its present morphology is a semicircular-shaped depression in which more than 6 m of vertical movement have been measured. The erosion of the banks of the Duero River affecting the slope of the Peñalba Hill ha...

Se han estudiado las mineralizaciones asociadas a las rocas ultrabasicas del complejo de cabo ortegal (macizos de limo, herbeira y uzal y serpentinitas de moeche-ortigueira); las rocas ultrabasicas del complejo de ordenes y las mineralizaciones asociadas a las serpentinitas de calzadilla de los barros en ossa morena. En los macizos de limo, herbeir...

Characterization has made it possible to distinguish four different lithological groups, according to their mineralogy and to classify the set of samples in five geotechnical groups according to their characteristics. The five geotechnical groups adapt perfectly to the geological model proposed. Finally, a qualitative study was made of the expansiv...

The mineralogical, textural and structural features of Tamajon-Campillo de Ranas ore deposit, are studied in relation to the main silver district, (Hiendelanencina zone). The sulphides and sulphosalts have got similar chemical composition in both mineralizations and the deposition took place into the same geotectonic setting. En este trabajo se an...

Crystals of these minerals have been grown in silica gel using both active and non-active gel. A study will be made of the relationship observed between both phases and the habit modifications they show.-R.E.S.

The geological, geochemical, mineralogical and metallogenical characteristics of the Ag ores from Tamagon-Campillo de Ranas are studied. The paragenesis belongs to the Pb-Ag type. The most important g minerals occur as exolution bodies in galena. These minerals are: freiselebenite, freibergite, rubby silvers as well as a Sb-sulfosalt of Cd, Ag and...