Search Results - "Barrenechea, J. F"

Vein graphite deposits: geological settings, origin, and economic significance by Luque, F. J., Huizenga, J-M., Crespo-Feo, E., Wada, H., Ortega, L., Barrenechea, J. F.

“…Graphite deposits result from the metamorphism of sedimentary rocks rich in carbonaceous matter or from precipitation from carbon-bearing fluids (or melts)…”
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Graphite morphologies from the Borrowdale deposit (NW England, UK): Raman and SIMS data by Barrenechea, J. F., Luque, F. J., Millward, D., Ortega, L., Beyssac, O., Rodas, M.

“…Graphite in the Borrowdale (Cumbria, UK) deposit occurs as large masses within mineralized pipe-like bodies, in late graphite–chlorite veins, and disseminated…”
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Key factors controlling massive graphite deposition in volcanic settings; an example of a self-organized critical system by Luque, F. J, Ortega, L, Barrenechea, J. F, Huizenga, J. M, Millward, D

“…Massive graphite deposition resulting in volumetrically large occurrences in volcanic environments is usually hindered by the low carbon contents of magmas and…”
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Microstructure and mineralogy of lightweight aggregates produced from washing aggregate sludge, fly ash and used motor oil by González-Corrochano, B., Alonso-Azcárate, J., Rodas, M., Luque, F.J., Barrenechea, J.F.

“…The microstructures and mineralogical compositions of lightweight aggregates (LWAs) manufactured with washing aggregate sludge (WS), fly ash (FA) and used…”
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The Anisian continental-marine transition in Sardinia (Italy): state of the art, new palynological data and regional chronostratigraphic correlation by Stori, L., Diez, J. B., Juncal, M., De la Horra, R., Borruel-Abadía, V., Martín-Chivelet, J., Barrenechea, J. F., López-Gómez, J., Ronchi, A.

“…The scarce evidence of paleontological records between the upper Permian and the Anisian (Middle Triassic) of Western Europe could reflect (1) large…”
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The graphite deposit at Borrowdale (UK): A catastrophic mineralizing event associated with Ordovician magmatism by Ortega, L., Millward, D., Luque, F.J., Barrenechea, J.F., Beyssac, O., Huizenga, J.-M., Rodas, M., Clarke, S.M.

“…The volcanic-hosted graphite deposit at Borrowdale in Cumbria, UK, was formed through precipitation from C–O–H fluids. The δ 13C data indicate that carbon was…”
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Formation of nontronite from oxidative dissolution of pyrite disseminated in Precambrian felsic metavolcanics of the Southern Iberian Massif (Spain) by Fernández-Caliani, J. C, Crespo, E, Rodas, M, Barrenechea, J. F, Luque, F. J

“…This paper describes a rare occurrence of nontronite associated with sulfide-bearing felsic metavolcanics, providing evidence of colloidal deposition in open…”
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U-Pb Ages of Detrital Zircons from the Permo-Triassic Series of the Iberian Ranges: A Record of Variable Provenance during Rift Propagation by Sánchez Martínez, S., De la Horra, R., Arenas, R., Gerdes, A., Galán-Abellán, A. B., López-Gómez, J., Barrenechea, J. F., Arche, A.

“…The provenance of the Permo-Triassic series of the Talayuelas anticline (Iberian Ranges) have been studied using U-Pb geochronology (laser ablation inductively…”
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Chlorite, corrensite, and chlorite-mica in Late Jurassic fluvio-lacustrine sediments of the Cameros Basin of northeastern Spain by Barrenechea, José F, Rodas, Magdalena, Frey, Martin, Alonso-Azcárate, Jacinto, Mas, José Ramón

“…The distribution and crystal-chemical characteristics of chlorite, corrensite, and mica in samples from a stratigraphic profile in the Cameros basin are…”
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Late Permian continental sediments in the SE Iberian Ranges, eastern Spain: Petrological and mineralogical characteristics and palaeoenvironmental significance by Benito, M. Isabel, de la Horra, Raúl, Barrenechea, José F., López-Gómez, José, Rodas, Magdalena, Alonso-Azcárate, Jacinto, Arche, Alfredo, Luque, Javier

“…A detailed mineralogical and petrological study and the analysis of paleosol profiles in continental alluvial sediments of the Late Permian in the SE Iberian…”
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Sandstone petrography of continental depositional sequences of an intraplate rift basin; western Cameros Basin (North Spain) by Arribas, José, Alonso, Ángela, Mas, Ramón, Tortosa, Amparo, Rodas, Magdalena, Barrenechea, José F, Alonso-Azcárate, Jacinto, Artigas, Rosana

“…The Cameros Basin in Central Spain is an intraplate rift basin that developed from Late Jurassic to Middle Albian time along NW-SE trending troughs. The…”
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Characterization of the Carnian Pluvial Episode in the Argana Basin (Western High Atlas, Morocco): An approach based on sedimentology, clay mineralogy and paleosols by Tourani, A., Benaouiss, N., De la Horra, R., Barrenechea, J.F., López-Gómez, J., Gallego, O.F., Bourquin, S.

“…We report on a multi-proxy study of the Carnian Pluvial Episode in the continental Argana Basin (Morocco) based on mineralogy, geochemistry, paleosols and…”
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Microstructure and mineralogy of lightweight aggregates manufactured from mining and industrial wastes by González-Corrochano, B., Alonso-Azcárate, J., Rodas, M., Barrenechea, J.F., Luque, F.J.

“…► We have studied the microstructure and mineralogy of LWA produced by wastes. ► The microstructure is controlled by the raw materials and heating conditions…”
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Paleoecological and paleoenvironmental changes during the continental Middle–Late Permian transition at the SE Iberian Ranges, Spain by De la Horra, R., Galán-Abellán, A.B., López-Gómez, J., Sheldon, N.D., Barrenechea, J.F., Luque, F.J., Arche, A., Benito, M.I.

“…The Middle and Late Permian are characterized by a pair of mass-extinction events that are recorded in both marine and continental environments. Here, we…”
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Palaeogeographical significance of clay mineral assemblages in the Permian and Triassic sediments of the SE Iberian Ranges, eastern Spain by Alonso-Azcárate, Jacinto, Arche, Alfredo, Barrenechea, JoséF., López-Gómez, José, Luque, F.Javier, Rodas, Magdalena

“…The evolution of the palaeogeography of the SE Iberian Basin during the Permian and Triassic represents a general evolution from continental to marine…”
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Palaeoenvironmental implications of aluminium phosphate-sulphate minerals in Early–Middle Triassic continental sediments, SE Iberian Range (Spain) by Galán-Abellán, A.B., Barrenechea, J.F., Benito, M.I., De la Horra, R., Luque, F.J., Alonso-Azcárate, J., Arche, A., López-Gómez, J., Lago, M.

“…The presence of Sr-rich aluminium-phosphate sulphate (APS) minerals in continental sedimentary rocks from the Cañizar and Eslida Formations along the eastern…”
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Sources of Sr and S in aluminum-phosphate-sulfate minerals in Early-Middle Triassic sandstones (Iberian Ranges, Spain) and paleoenvironmental implications for the west Tethys by Galán-Abellán, Belén, Alonso-Azcárate, Jacinto, Newton, Robert J, Bottrell, Simon H, Barrenechea, José F, Benito, M. Isabel, de la Horra, Raúl, López-Gómez, José, Luque, Javier

“…Aluminum-phosphate-sulfate (APS) minerals, formed during early diagenesis in relation to acid meteoric waters, are the main host of Sr and S in the…”
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Sources of Sr and S In AJuminum-Phosphate-Sulfate Minerals In Early-Middle TriassicS andstones (Iberian Ranges, Spain) and Paleoenvironmental Implications for the West Tethys by Galan-Abellan, B, Alonso-Azcarate, J, Newton, R J, Bottrell, SH, Barrenechea, J F, Benito, MI, De La Horra, R, Lopez-Gomez, J, Luque, J

“…Aluminum-phosphate-sulfate (APS) minerals, formed during early diagenesis in relation to acid meteoric waters, are the main host of Sr and S in the…”
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