• Sobre la posición sistemática de los ammonites del Oxfordiense de los Andes Chilenos (Cordillera Domeyko, Chile, Provincia Andina) 

  Meléndez Hevia, Guillermo; Myczynski, R. (Sociedad Geológica de España, 1987)

  The study of Oxfordian Perisphinctidae (Ammonoidea) from the Andean Province (Chili) shows a marked Iow share of typically european representatives (Perisphinctinae), the proportion being somewhat higher in the case of ...

  

• Síntesis y bioestratigrafía de los carnívoros pliocenos de las cuencas centrales españolas 

  Alcalá, Luis; Morales, J.; Soria, D. (Sociedad Geológica de España, 1987)

  A revision of the Pliocene carnivores from the Spanish Central Basins is presented in this paper. Through the study of data from Six different localities, we can establish the following characteristics: mustelid scarcity, ...

  

• Ridge distribution and fluidized crater occurrence on Mars 

  Chicarro, A. F. (Sociedad Geológica de España, 1987)

  The planetwide distribution of Martian ridges reveals that compressive stresses have occurred well beyond the Tharsis-dominated hemisphere. Regions of high ridge density show a large number of fluidized craters, whose ...

  

• Relaciones blastesis deformación del granate en la zona de cizalla de Berzosa 

  González Casado, J. M.; Casquet Martín, César (Sociedad Geológica de España, 1987)

  Deformation partitioning is responsible for the various textural and compositional features shown by garnets in the Berzosa Shear Zone. This process is time-and spacedependent across the fault

  

• Presencia de una paragénesis Cu-Ni-Co-U-As-S en la zona cantábrica: la Mina Profunda (Cármenes-León) 

  Paniagua, A.; Rodriguez Pevida, L. S.; Garzón, L.; Pérez, J. M.; Quintana, A. (Sociedad Geológica de España, 1987)

  The Profunda Mine is an epithermal, carbonate-hosted ore deposit located between late-hercynian faults, showing a remarkable supergenic alteration. This is the first significant evidence of uranium in the Cantabrian Zone

  

• Paleoseismicity in the Spanish Central Range: evidence from the Pseudotachylites 

  Doblas, M. (Sociedad Geológica de España, 1987)

  The granitoids of the SW Spanish Central Range show different episodes of formation of pseudotachylites, ranging from post-hercynian to alpine times, and which indicate paleoseismic activity in the area

  

• Paleobiogeographical aspects of the Ordovician mediterranean faunas 

  Gutiérrez Marco, Juan Carlos; Rábano, Isabel (Sociedad Geológica de España, 1987)

  The distribution of the faunas and sediments of mediterranean character is related to paleogeographical aspects (epicratonic seas at high latitudes surrounding the Gondwanan continent) as well as to global transgressive-regressive ...

  

• Los depósitos de hierro oolítico del Paleozoico de Asturias y N de León: ambiente de depósito y relación con el vulcanismo 

  García Ramos, José Carlos; Suárez de Centi, C.; Paniagua, A.; Valenzuela, M. (Sociedad Geológica de España, 1987)

  The depositional setting of the Palaeozoic oolitic iron formations of the Cantabrian Mountains is proposed. They acumulated in a shallow sublittoral environment influenced by the repetitive alternation of siliciclastic ...

  

• Longitudes de fracturas y cavidades en el karst de Larra (Pirineos) 

  López Martínez, Jerónimo; Martín Escorza, Carlos (Sociedad Geológica de España, 1987)

  A fracture and cave length distribution model has been established by statistical analysis. Structural analysis of 2142 fractures and 1233 caves shows that the best lenght distribution model for the karstic massif of Larra ...

  

• La Raña al sur de la Somosierra y Sierra de Ayllón: un piedemonte escalonado del Villafranquiense Ihedio 

  Pérez González, Alfredo; Gallardo, J. (Sociedad Geológica de España, 1987)

  The Raña located NE of Madrid is a piedmont alluvial plain of Middle Villafranquian age. lt is divided into several platforms which are the result of neotectonic processes

  

• La campaña Galinaute del sumergible «Nautile»: tres tipos de fondos marinos en la parte profunda del margen de Galicia 

  Boillot, G.; Comas, M. C.; Girardeau, J.; Kornprobst, J.; Loreau, J. P.; Malod, J.; Mougenot, D.; Moullade, M. (Sociedad Geológica de España, 1987)

  In 1986 the french submersible Nautile dived to 3.500 m-5.500 m at Galicia Margin in the area drilled by the JOIDES Resolution 0-V (CDP, Leg 703). Three different kinds of seafloor were investigated: a) the Galicia passive ...

  

• La asociación magmática del batolito de los Pedroches: ensayo de caracterización 

  García Casco, Antonio; Pascual Martínez, Emilio; Castro Dorado, Antonio (Sociedad Geológica de España, 1987)

  A typical granitoid association of the Hercyno-type suite occurs in the los Pedroches batholith, composed mainly of biotite ± amphibole granodiorites, biotîte-cordierite porphyritic monzogranites and cordierite leucogranites, ...

  

• Presencia de rinoceronte en la fauna de Cueva Millán (Burgos) 

  Cerdeño, Esperanza (Sociedad Geológica de España, 1987)

  The last digging in the Pleistocene site of Cueva Millán (Burgos) has showed the presence of Rhinocerotidae among its fauna. The finding consists of a left maxilar fragment with P-M3, determined by comparative study as ...

  

• Ignimbritas paleógenas en Mallorca (islas Baleares) 

  Alvaro López, M.; Zamora, Olmo; Aguilar Tomás, M. J. (Sociedad Geológica de España, 1987)

  An ignimbritic sheet interlayered in Paleogene (Oligo-Miocene?) continental deposits in the Northern Ranges of Majorca is made up of rhyolites and K-rich rhyolites, of presumed calc-alkaline origin. This volcanic activity ...

  

• Generaciones de cabalgamientos y pliegues recumbentes en los Mantos Alpujárrides entre Ronda y Almería, Cordilleras Béticas 

  Balanyá, Juan Carlos; Campos, J.; García Dueñas, V.; Orozco, Miguel; Simancas Cabrera, J. F. (Sociedad Geológica de España, 1987)

  Synmetamorphic thrust nappes, related to the Los Reales Crustal Thrust within the Alpujarride Nappes, moved in an ENE or NE direction. A subsequent movement took place in a northerly direction and large fold nappes were ...

  

• Episodios sedimentarios en el Alcudiense Superior (Proterozoico) y su tránsito al Cámbrico en la zona centro meridional del Macizo Ibérico 

  Vilas, Lorenzo; García Hidalgo, J. F.; San José Lancha, M. A. de; Pieren Pidal, A.; Peláez Pruneda, J. R.; Perejón, A.; Herranz Araújo, P. (Sociedad Geológica de España, 1987)

  The evolution of the Upper Alcudian-Lower Cambrian basin is studied in the eastern Lusitanian-Alcudian Zone. Five sedimentary episodes with distinctive characteristics are considered

  

• Engrosamiento de la corteza y relieve intraplaca en el centro de Iberia 

  Vegas, Ramón; Suriñach, Emma (Sociedad Geológica de España, 1987)

  A moderate thickening of the crust beneath the Spanish Central System has been determined by means of a wide angle seismic experiment. The value of this thickening — 5 km in form of 3 km of the Moho topography, 2 km of ...

  

• El plutón de Santa Eufemia (batolito de los Pedroches, Córdoba, España): un granitoide epizonal de tipo S 

  García Casco, Antonio; Pascual Martínez, Emilio (Sociedad Geológica de España, 1987)

  A petrogenetical approach is presented for a monzo-granite pluton (Santa Eufemia) in Los Pedroches Batholith (Central Iberian Zone, Iberian Massif, Spain). From petrological and geochemical data, an S-type character is ...

  

• Calderas volcánicas pasivas: un ejemplo en el Estefaniense del Pirineo Catalán 

  Martí, Joan; Mitjavila, J. (Sociedad Geológica de España, 1987)

  A model of volcanic cauldron (pasive volcanic cauldrons) is proposed for some LateHercynian basins of the Catalan Pyrenees. This volcanic structure is defined as a sedimentary basin in which the subsidence processes are ...

  

• Cabalgamientos en las Serres de Llevant de Mallorca 

  Säbat, F.; Santanach, P. (Sociedad Geológica de España, 1987)

  The thrusts and folds of the Serres de Llevant of Mallorca are Oligocene-Miocene in age. They can be integrated in a single thrust system with a NW transport direction. The NW-SE structures are lateral ramps and associated folds

  

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