TRACE-ELEMENT ANALYSES OF PYROXENE AND PLAGIOCLASE …meteorites.pdx.edu/pubs/2008-HED-MetSoc08poster.pdf · the magmatic and metamorphic histories of HED meteorites and their parent
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OBSERVATIONS ON THE OCCURRENCE OF PLAGIOCLASE FELDSPARS · such minerals as high-calcium plagioclase feldspar, olivine, magnetite, pyroxene and many others, typically minerals that
GEOLOGY - GL4 · Figures 1a and show the variation in percentage of two minerals, augite (pyroxene) and 1b plagioclase feldspar within a dolerite sill. Figure 1c shows the crystallisation
Petrogenesis of the Northwest Africa 4898 high-Al mare basaltauthors.library.caltech.edu/70105/1/Li_et_al-2016... · predominantly composed of pyroxene (53.8 vol%) and plagioclase
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High-calcium pyroxene as an indicator of igneous ...tburbine/sunshine.maps.2004.pdfenriched in low-calcium pyroxene at the expense of both high-calcium pyroxene and plagioclase, since
RETRIEVAL OF MINERAL ABUNDANCES OF THE DELTA REGION … · mineral abundances. The abundance maps show that there are six kinds of minerals (pyroxene, olivine, plagioclase, siderite,
Classification of Igneous Rocks fileMineral Composition Basaltic rocks (mafic) - dark-colored, lower silica contents, and contain mostly plagioclase and pyroxene gabbro
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Geology and geochemistry of Moonastro.matf.bg.ac.rs/beta/lat/sci/seminar/ana.cernok.230.pdf · Crust (ca. 4.5 –3.9 Ga) Minerals: • Dominantly plagioclase (white) • Some pyroxene
Ultramafic Rock Bodies Pyroxene Classification · Mineralogy • Plagioclase • An85 to An50 • Pyroxene • Ortho (Hypersthene) • Clino (Augite to Pigeonite) • Olivine •
Alteration of plagioclase and pyroxene phenocrysts in a ... · Valley of Ten Thousand Smokes, Alaska ... slightly altered tephra, ... at a submicrometer scale, within
30. GLASSY INCLUSIONS IN PLAGIOCLASE AND PYROXENE ... · 30. GLASSY INCLUSIONS IN PLAGIOCLASE AND PYROXENE PHENOCRYSTS IN THE CHILLED MARGIN OF A PILLOW LAVA FROM HOLE 417D, DEEP
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