Results 31 to 40 of about 502 (117)
Estudios Geologicos, 1999 Durante el Cretácico superior se desarrolló en la Cuenca Vasco-Cantábrica una importante actividad volcánica submarina de naturaleza alcalina. Este vulcanismo estuvo relacionado con el funcionamiento de un rift y/o una falla transformante en corteza ...
M. Carracedo, F. J. Larrea, A. Alonso
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Palagonitization of Volcanic Rocks in Polar Climates: The Case of Deception Island (Antarctica)
Geochemistry, Geophysics, Geosystems, Volume 26, Issue 12, December 2025.Abstract A detailed study of palagonitization in rocks from Deception Island—one of Antarctica's most active volcanoes—has been performed to advance our understanding of this alteration process. A detailed petrographic (optical and SEM), mineralogical (XRD), and mineral and glass spot geochemistry (EDS and EMP) characterization has been conducted on ...
Oriol Vilanova‐Pagès +10 more
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GeogacetaLa erupción volcánica de 1712, de El Charco, es una de las peor conocidas de las 8 erupciones históricas de la isla de La Palma. Fue un evento principalmente estromboliano, con fases hidromagmáticas, durante el cual se abrieron múltiples bocas a lo ...
Nicolás Chicharro +3 more
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Angewandte Chemie, Volume 137, Issue 48, November 24, 2025.Chemische Gärten sind selbstorganisierte abiotische Strukturen mit „lebensähnlichen” Formen. Hier zeigen wir, dass solche Prozesse auch nach Zugabe konzentrierter Sulfatlösungen zu festen Calciumsalzen ablaufen und sogenannte Gipsgärten ergeben. Die dafür nötigen Bedingungen sind weitgehend kompatibel mit den geochemischen Verhältnissen auf dem frühen ...
Selina Reigl +5 more
wiley +1 more source
GeogacetaEn el área entre Pétrola y Pozo Moro (centro-oeste de la provincia de Albacete) afloran depósitos miocenos formados por sucesiones de calcarenitas y areniscas que pueden alcanzar potencias superiores a los 11 metros.
Javier Martínez Martinez +4 more
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Waterproofing of porous carbonate rocks: Efficiency-controlling its properties
Materiales de Construccion, 1995 The aim of this study is to establish which physical properties may be used, in a routine way, in order to know the efficacy rate of a treatment applied on a specific rocky substrate.
R. M. Esbert, José Alonso Sánchez
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Angewandte Chemie International Edition, Volume 64, Issue 48, November 24, 2025.Chemical gardens are self‐assembled architectures with “life‐like” morphologies that form in the absence of any biological activity. Here we show that such structures can also be obtained by contacting reservoirs of calcium and sulfate ions, under conditions that plausibly emulate those prevailing on early Mars.
Selina Reigl +5 more
wiley +1 more source
Evaluation of bricks durability using destructive and nondestructive methods (DT and NDT)
Materiales de Construccion, 2003 We have studied the physical-mechanical behaviour of solid bricks treated with consolidants and/or water-repellents in accelerated aging tests to determine their durability.
G. Cultrone +3 more
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Tectonics, Volume 44, Issue 7, July 2025.Abstract Relamination is closely connected to subduction zones. Despite the numerous high‐P metamorphic belts recognized on Earth, relamination remains a poorly documented process. We present a continental subduction zone where the exhuming high‐P rocks became a relaminant under the upper plate.
Rubén Díez Fernández +7 more
wiley +1 more source
Materiales de Construccion, 1998 A review of some relevant papers about the cutting of ornamental stones with diamond tools is presented here with the aim of being useful to the Natural Stone industries. Due to the length of this paper, it has been divided in two parts: in the first one,
L. M. Suárez del Río +3 more
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