Results 71 to 80 of about 1,550 (205)

Crystallochemical features of chlorites of the earth crust deep horizons [PDF]

, 2014
© SGEM2014. All Rights Reserved. This article analyzes finely dispersed matter in the deep horizons of the Earth's crust -the crystalline basement destruction zones of the East Russian Plate. In these areas, the complex of clay minerals is formed.
Sitdikova L.
core  

Textural, Mineralogical and Chromatic Characterisation of the Beach Sediments of Cuba: Management Implications

Journal of Marine Science and Engineering
Although it is practically impossible to find locations without a massive flux of tourists, few beach destinations present a great attraction due to their privileged natural characteristics. This is often the case for sites that show splendid beach sands.
Ángel Sánchez-Bellón, Eduardo Molina-Piernas, Giorgio Anfuso, Francisco Asensio-Montesinos, Juan Alfredo Cabrera-Hernández, Camilo M. Botero, Enzo Pranzini   +6 more
doaj   +1 more source

Fluoride‐Free Mouthwashes Available Over‐The‐Counter in the US‐An Overview

International Journal of Dental Hygiene, EarlyView.
ABSTRACT Purpose Fluoride‐free mouthwashes (FFM) are commonly used by patients for a variety of cosmetic and/or therapeutic reasons. The purpose of this study was to investigate the composition and purposes of FFM available over‐the‐counter in the US.
Astrid C. Valdivia‐Tapia, Jaime A. Cury, Antonio P. Ricomini‐Filho, Frank Lippert   +3 more
wiley   +1 more source

The chlorites of the pegmatitic bodies of the La Cabrera pluton (Spanish Central System)

, 1996
The chlorites included within the pegmatitic bodies of the La Cabrera pluton (Spanish Central System) have been studied in order to stablish their characterization, clasification and relationship with other minerals.
Lozano Fernández, R. P., Rodas, M., Barrenechea, J. F., Galindo, Carmen   +3 more
core  

Pedogenic chlorites in podzolic soils with different intensities of hydromorphism: origin, properties, and condiotions of their formation

, 2010
Minerals of the pedogenic chlorite group were studied in the clay fractions isolated from the mineral horizons of podzolic and gleyic peatpodzolic soils.
Sokolova T. A., FALSONE, GLORIA, Bonifacio E., Tolpeshta I. I.   +3 more
core   +1 more source

Feldspar Albitization With Implications for Reservoir Quality Evolution of Eocene Turbidite Sandstones in Offshore Espírito Santo Basin, Eastern Brazil

Journal of Petroleum Geology, EarlyView.
ABSTRACT The diagenetic albitization of plagioclase and K‐feldspar grains is a transformative process that significantly alters sandstone's detrital composition and formation water chemistry, impacting reservoir quality. In this study, Eocene turbidite sandstones from the offshore Espírito Santo Basin, Brazil, were investigated to elucidate the role of
Eveline E. Zambonato, Luiz F. De Ros, Howri Mansurbeg   +2 more
wiley   +1 more source

Cr-bearing chlorites in low-grade metapelites of the Puncoviscana Formation (Neoproterozoic), northwestern Argentina [PDF]

, 2003
Chlorites containing appreciable amounts of Cr were recognized by AEM in an anchizonal metapelite of the Puncoviscana Formation during a TEM study. Cr-bearing chlorites are restricted inside a rounded crystal of quartz several microns diameter, they form
do Campo, Margarita, Nieto García, Fernando   +1 more
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Synthèse de chlorites par action de solutions alcalines sur le pyroxène

, 1909
Friedel Georges, Grandjean François. Synthèse de chlorites par action de solutions alcalines sur le pyroxène. In: Bulletin de la Société française de Minéralogie, volume 32, 5-6, 1909. pp.
Friedel, Georges, Grandjean, François, Georges Friedel, François Grandjean   +3 more
core   +1 more source

SECONDARY MINERAL PARAGENESIS IN THE MAFIC EXTRUSIVE ROCKS FROM THE MT. MEDVEDNICA OPHIOLITE MÉLANGE (CROATIA)

Rudarsko-geološko-naftni Zbornik, 2012
The samples of partly or completely altered basaltic extrusive rocks from Mt. Medvednica ophiolite mélange were analysed by the optical microscopy and by X-ray powder diffraction (XRD).
Damir Slovenec , Boško Lugović, Dragutin Slovenec   +2 more
doaj  

Rethinking microtidal systems: Tidal signatures in the fluvial deposits of the Po River, Italy

Sedimentology, EarlyView.
ABSTRACT In microtidally influenced rivers, tides are generally assumed to leave virtually no signatures in the sedimentary record. However, this hypothesis has been surprisingly poorly tested using modern river analogues, which provide an opportunity to assess whether sedimentary signatures of microtidal regimes can develop in rivers that lack ...
Anna E. van Yperen, Alvise Finotello, Riccardo Maitan, Ivar Midtkandal, Fabrizio Nestola, Davide Tognin, Massimiliano Ghinassi   +6 more
wiley   +1 more source