منابع مشابه
Visible/Near-Infrared Spectra of Experimentally Shocked Plagioclase Feldspars
Introduction: Minerals subjected to high shock pressures exhibit structural changes with increasing pressure (e.g., fractures, deformations, formation of diaplectic glass, and complete melting [1-6]). Petrologic and thermal infrared spectroscopic studies have shown that diaplectic glass (maskelynite) formation in feldspars occurs between ~25-45 GPa, while significant melting occurs above ~45 GP...
متن کاملShock Compression of Feldspars
Hugoniot data for oligoclase and microcline to 670 and 580 kb and release adiabat data for oligoclase were obtained by means of the inclined mirror and immersed-foil-reflected-light techniques, respectively. Oligoclase and microcline have Hugoniot elastic limits in the range of 40-55 and 80-85 kb. These limits increase slightly with increasing driving shock pressure. Above the elastic limit, ex...
متن کاملMantled feldspars and synneusis
Synneusis, the drifting together and systematic attachment of crystals in a melt, is involved in three of the known origins for mantled feldspars: (1) overgrowth, (2) exsolution, and (3) filling of skeletal plagioclase. Quartz latite dikes of the Chocolate Mountains, California, contain plagioclase crystals in parallel and twinned synneusis. Sanidine mantles consisting of segments, each crystal...
متن کاملThe Elasticity of Elasticity
In this talk I assert that the usual interpretation of what one means by “elasticity” is much too insular and illustrate my thesis by introducing implicit constitutive theories that can describe the nondissipative response of solids. I show that response which was hitherto untenable within the context of Cauchy or Green Elasticity are not only possible, they can explain phenomena that have thus...
متن کاملRevisiting Plagioclase Optical Properties for Lunar Exploration
1 , C. M. Pieters 1 , M. D. Dyar 2 , K.A. Milam 3 , 1 Dept. of Geological Sciences, Brown University, Providence RI 02912, [email protected], [email protected], 2 Department of Astronomy, Mount Holyoke College, 50 College St., South Hadley, MA 01075, [email protected], 3 Department of Geological Sciences, Ohio University, 316 Clippinger Laboratories, Athens, OH 45701, [email protected].
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ژورنال
عنوان ژورنال: Journal of Geophysical Research: Solid Earth
سال: 2016
ISSN: 2169-9313,2169-9356
DOI: 10.1002/2015jb012736