1998
DOI: 10.1093/oxfordjournals.jmicro.a023555
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Modulated structures in KAlSi3O8: a study by high resolution electron microscopy and 29Si MAS-NMR spectroscopy

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Cited by 17 publications
(23 citation statements)
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“…Fitz Gerald and McLaren (1982) investigated Albite and Pericline twinning in microcline from several pegmatites and Sheets and Tettenhorst (1997) studied replacement of pegmatitic feldspar by clay minerals. Sánchez-Muñoz et al (1998) studied six adularia crystals from Alpine veins using high-resolution TEM (HRTEM) and nuclear magnetic resonance spectroscopy, confirming that they have the coherent tweed domain microtexture Albite twinned albite lamellae slightly oblique to b and fine-scale 'tartan', combined Albite and Pericline twinning, in microcline. In places there is a clear interaction between Albite twins in both phases at the margins of the lamellae.…”
Section: Previous Work On Alkali Feldspars From Pegmatitesmentioning
confidence: 85%
“…Fitz Gerald and McLaren (1982) investigated Albite and Pericline twinning in microcline from several pegmatites and Sheets and Tettenhorst (1997) studied replacement of pegmatitic feldspar by clay minerals. Sánchez-Muñoz et al (1998) studied six adularia crystals from Alpine veins using high-resolution TEM (HRTEM) and nuclear magnetic resonance spectroscopy, confirming that they have the coherent tweed domain microtexture Albite twinned albite lamellae slightly oblique to b and fine-scale 'tartan', combined Albite and Pericline twinning, in microcline. In places there is a clear interaction between Albite twins in both phases at the margins of the lamellae.…”
Section: Previous Work On Alkali Feldspars From Pegmatitesmentioning
confidence: 85%
“…Heaney and Veblen, 1991), feldspars (e.g. Yamamoto et al, 1984;Steurer and Jagodzinski, 1988;Kalning et al, 1997;Sanchez-Munoz et al, 1998), melilite (Bindi et al, 2001a and references therein), fresnoite (Bindi et al, 2006d), cancrinite-sodalite join (e.g. Hassan andBuseck, 1989, 1992;Xu and Veblen, 1995;Hassan, 2000;Hassan et al, 2004;Bolotina, 2006;Bolotina et al, 2006), nepheline (Withers et al, 1998;Angel et al, 2008;Friese et al, 2011), lazurite (Rastsvetaeva et al, 2002;Bolotina et al, 2003aBolotina et al, ,b, 2004, trydimite (e.g.…”
Section: Naturally Occurring Aperiodic Structuresmentioning
confidence: 99%
“…Cuando los dominios tienen un tamaño inferior al dominio cristalino de difracción coherente (que está entre unos 500 y 1000 Å), las estimaciones estructurales por difracción de rayos-X tienen valor limitado ya que la existencia de los elementos de simetría que relacionan la orientación de los dominios (esto es, las leyes de macla) pueden simular simetrías más altas (7,10,21). Este efecto se pone de manifiesto en la microclina alta en la que se observan señales simples del pico (131) en un amplio margen de intensidades y anchuras.…”
Section: Técnicasunclassified
“…Este efecto se pone de manifiesto en la microclina alta en la que se observan señales simples del pico (131) en un amplio margen de intensidades y anchuras. En este sentido, las microclinas de baja triclinicidad que aparentan triclinicidad nula cuando se estudian por DRX, presentan triclinicidad apreciable cuando se estudian mediante difracción de electrones (6,7,10). Por otro lado, dada la naturaleza pseudomórfica de las microclinas, la práctica totalidad de los cristales de feldespatos potásicos de las rocas no constan de un único estado estructural sino que coexisten numerosas señales generadas por mezclas íntimas de estructuras con distinto grado de orden Si/Al local.…”
Section: Técnicasunclassified
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