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Browsing by Author "Barbero, Luis"
Now showing items 1-14 of 14
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Apatite fission track dating of the post-magmatic apatite + hematite + carbonate assemblage from the Jumilla lamproites (SE Spain)
(Sociedad Geológica de España, 1999)En este trabajo se presentan los resultados de la datación mediante la técnica de huellas de fisión en apatito de las venas incluidas dentro de las lamproitas de la localidad de Jumilla (Murcia). Los resultados obtenidos ... -
Comparison of UAS and Sentinel-2 Multispectral Imagery for Water Quality Monitoring: A Case Study for Acid Mine Drainage Affected Areas (SW Spain)
Isgró, Melisa A.; Basallote Sánchez, María Dolores
; Caballero, Isabel; Barbero, Luis (MDPI, 2022-08)
Uncrewed Aerial Systems (UAS) and satellites are used for monitoring and assessing the quality of surface waters. Combining both sensors in a joint tool may scale local water quality retrieval models to regional and global ... -
Coronas de flogopita-pargasita en torno a ilmenita en los metagabros de La Bastida (Complejo Plutono-Migmatítico de Toledo)
(Sociedad Geológica de España, 1990)In the coronitic gabbros of La Bastida (Toledo) several metamorphic corona textures of phlogopite and pargasitic amphibole around ilmenite are developed. The genesis of these coronas is directly linked with the widespread ... -
Estimación de las condiciones del metamorfismo hercínico de alta presión de la Sierra de Guadarrama
(Sociedad Geológica de España, 1994)A revision of the P-T conditions of the first metamorphic episode, based on new data on the mineral chemistry of the residual high pressure paragenesis of the metabasic and metapelitic rocks from the Sierra de Guadarrama, ... -
Estimaciones termobarométricas en los metagabros coroníticos de la región de Segovia (Sierra de Guadarrama)
(Sociedad Geológica de España, 2002)Coronitic gabbros of tholeiitic affinity croping out in the Segovia region in relation to ductile shear zones are studied in the present work. Mineral equilibria and thermobarometric calculation indicate that maximum P-T ... -
Estudio de la composición isotópica (Pb-S-O) de las mineralizaciones Pb-Zn de Mazarambroz (Banda Milonítica de Toledo)
(Sociedad Geológica de España, 2005)Combined lead, sulphur and oxygen isotopes have been analysed in ore (galena and sphalerite) and associated (quartz, barite) minerals from the Mazarambroz Pb-Zn mineralization. Lead isotopic model ages in galenas cluster ... -
Gabros coroníticos en el macizo cristalino de Toledo
(Sociedad Geológica de España, 1988)The Bastida gabbros massif is formed by olivine norites and piroxene gabbronorites. The metamorphic conditions are those of the intermediate to Iow pressure granulite facies, producing the coronitic texture that exhibit ... -
Geochemical and isotopic (Sr, Nd) constraints on the origin of the calc-alkaline syn-orogenic association from the Anatectic Complex of Toledo (Hercynian Iberian Belt)
(Sociedad Geológica de España, 1996)Los nuevos datos químicos e isotópicos (Sr, Nd) de los gabros sin-orogénicos (previos al pico metamòrfico) de afinidad shoshonítica (gabros de Toledo) y de los también sin-orogénicos granitoides de Argés revelan la presencia ... -
Los granates de rocas metapelíticas de la Región Central Española: implicaciones en el origen de granates en granitoides
(Sociedad Geológica de España, 1991)The differences in garnet composition of three grade-metamorphic zones of Central Hercynian Belt, can be used to estimate the thermobaric conditions of the rocks. The unusual garnet composition in granulite xenoliths ... -
Historia del levantamiento tectónico de la Sierra de Cameros (Cordillera Ibérica, España): restricciones en base a cronología mediante huellas de fisión y (U-Th)/He en apatitos
(2006)In this work, we present new fission track and (U-Th)/He data of in apatites in order to reconstruct the exhumation of Sierra de Cameros, in the northwestern part of Iberian Range (Spain). Apatite fission track (AFT) ... -
Nd isotopic heterogeneity in Iate-Hercynian granitic plutons from Central Spain
(Sociedad Geológica de España, 1997)Some Hercynian granitic plutons from Central Spain show variation in initial Nd isotopic ratios defining different trends with increasing silica content. There is a decoupling between the Sr and Nd isotopic systems as these ... -
Nuevos datos petrológicos, geocronologia (Rb-Sr) y geoquímica isotópica (Sr, Nd) del plutón de Ventosilla (Sierra de Guadarrama, Sistema Central Español)
(Sociedad Geológica de España, 1997)Whole rock Rb-Sr ¡sotopic analyses on granites from Ventosilla pluton yield an age of 346 ± 63 Ma, and intercept at 0.708688 ± 0.00094. This age increases the time-span of the Hercynian plutonism in the area up to 70 Ma. ... -
Primeros resultados de huellas de fisión en apatito en el sector Lugo-Ancares (Noroeste de la Península Ibérica)
(2006)The Northwest of the Iberian Peninsula is characterised by the absence of Mesozoic sedimentary deposits, the Cenozoic sediments being scarce. Due to that, the chronology of the geological events in the area is difficult ... -
Sr-Nd isotopic heterogeneities in high-grade metamorphic conditions: an example from the anatectic complex of Toledo (Spain)
(Sociedad Geológica de España, 1994)Preliminary data on the study of Sr-Nd isotopes in metapelitic, restite-rich granitoids and anatectic leucogranites from the Anatectic Complex of Toledo (Centro-lberian Hercynian zone), reveal the absence of isotopic ...
