Results 21 to 30 of about 27,218 (148)
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
doaj +1 more source
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
doaj +1 more source
Reactivity of laser-cleaned stones to a SO2 ageing test
Materiales de Construccion, 2004 In order to study the reaction or susceptibility of Nd:YAG laser cleaned stones to polluted atmospheres, several types of stone, both cemented (limestone) and crystalline (marble, granite), were exposed to an atmosphere having simulated SO2 pollution ...
F.J. Alonso +3 more
doaj +1 more source
Boletín Geológico, 2021 The Servicio Geológico Colombiano has made available several airborne magnetometry and gamma-ray spectrometry datasets. The information was acquired in 15 blocks that cover approximately 520,000 square kilometers of Colombian territory, representing ...
Ismael Enrique Moyano Nieto +10 more
doaj +1 more source
Materiales de Construccion, 1998 This paper follows another one published in the preceding number of this same journal, that reviewed some scientific papers on the influence of the factors of the cutting equipments (machinery, cutting characteristics, disks, etc) on the efficiency of ...
A. Rodríguez-Rey +3 more
doaj +1 more source
Petrophysical and geochemical characterization of the late-variscan Santa Eulália Plutonic Complex (Ossa-Morena Zone, Portugal) [PDF]
, 2012 The Santa Eulália Plutonic Complex (SEPC) is a calc-alkaline granitic body located in the northern part of the Ossa Morena Zone, composed by a medium- to coarse-grained pink granite (G0 group) involving large elongated masses of mafic (gabbroic) to ...
Cruz, Cláudia +5 more
core
Estudios Geologicos, 1990 El estudio de sistemas geotermales es abordado en la actualidad mediante la utilización de técnicas geotermométricas clásicas de manera interactiva con otras más complejas de modelización termodinámica por ordenador.
J. M. Tena +4 more
doaj +1 more source
Inorganic geochemistry as indicator of provenance and sedimentary environment in black shales: the tithonian transgressive deposits of the Neuquén basin (Vaca Muerta Formation), Argentina. [PDF]
, 2014 Se presenta un estudio de geoquímica inorgánica de las sedimentitas formadas durante la transgresión marina del Titoniano temprano en la Cuenca Neuquina.
Schwarz, Ernesto +2 more
core +3 more sources
Paleosuelos de sepiolita en el neógeno de la cuenca de Madrid
Estudios Geologicos, 1989 El análisis de la composición mineral de materiales arcillosos con sepiolita, pone de manifiesto variaciones significativas en el contenido de este mineral, con respecto a esmectitas e illitas, minerales terrígenos (cuarzo y feldespato) y carbonatos ...
S. Leguey, M. Pozo, J. A. Medina
doaj +1 more source
1º Congresso Internacional de Geologia de Timor-Leste. [PDF]
, 2012 Congresso Internacional de Geologia de Timor ...
Costa, Norberta, Nogueira, Pedro
core