نتایج جستجو برای: nak feldspar

تعداد نتایج: 2076  

2013
P. D. Abbatt

Introduction Conclusions References

2015
John D. Fitz MaRtin R. lee

Almost all alkali feldspar crystals contain a rich inventory of exsolution, twin, and domain microtextures that form subsequent to crystal growth and provide a record of the thermal history of the crystal and often of its involvement in replacement reactions, sometimes multiple. Microtextures strongly influence the subsequent behavior of feldspars at low temperatures during diagenesis and weath...

2015
Lukas Bickel Christopher Lüthgens Johanna Lomax Markus Fiebig

During the penultimate glaciation vast areas of the Alps were glaciated, with piedmont glaciers protruding into the foreland. In the easternmost part of the northward draining valleys of the Alps, the glaciers did not reach the foreland, but formed valley glaciers confined by the mountainous terrain. This also applies to the Ybbs valley, where samples for luminescence dating out of glaciofluvia...

Journal: :iranian journal of chemistry and chemical engineering (ijcce) 1991
gholam abbas parsafar y. ghayeb

thermal behavior of various solid feldspars are different, namely those of bivalent cations show no change in the distribution of al and si atoms, whereas feldspars of univalent cations become more disordered with raising temperature. in the latter case al atoms migrate from the sites they occupe at low temperatures and interchange positions with the si atoms. at high temperatures (but still be...

2006
Richard Yuretich Darby Dyar

2014
Carlos Sánchez Alfonso Bueno-Orovio Erich Wettwer Simone Loose Jana Simon Ursula Ravens Esther Pueyo Blanca Rodriguez

AIMS Human atrial electrophysiology exhibits high inter-subject variability in both sinus rhythm (SR) and chronic atrial fibrillation (cAF) patients. Variability is however rarely investigated in experimental and theoretical electrophysiological studies, thus hampering the understanding of its underlying causes but also its implications in explaining differences in the response to disease and t...

Journal: :DENKI-SEIKO[ELECTRIC FURNACE STEEL] 1974

Journal: :Proceedings of the American Mathematical Society 2014

Journal: :Journal of Nuclear Science and Technology 2003

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