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mary igneous plagioclase to secondary mus ... the replacement of primary plagioclase by ... intermediate Na/K mica) ...
2. REPLACEMENT OF PRIMARY PLAGIOCLASE BY ... replacement of primary plagioclase by secondary microcline and myrmekite occur. ... probe analyses show that K 2
CHEMISTRY AND ORIGIN OF SECONDARY MINERALS ... than the primary igneous plagioclase. The secondary plagioclase ... % replacement of primary minerals by secondary ...
This leads via the replacement of primary K ... of deformed primary plagioclase by secondary K ... gneissic complexes: Petrology, v. 2, p. 395423 ...
nor the myrmekite are primary but are secondary and resulted from ... the remnant islands of optically parallel plagioclase in K ... Total Kreplacement, ...
K/NA VARIATION IN PHLOGOPITE AND AMPHIBOLE OF UPPER MANTLE PERIDOTITES DUE TO FRACTIONATION OF THE ... showing secondary or replacement ... secondary" (figs. 2
SUBSURFACE HYDROTHERMAL ALTERATION IN THE ULUMBU GEOTHERMAL FIELD, FLORES, INDONESIA ... Albite is present only as a replacement of primary plagioclase.
Heat Source Movements in Lahendong Geothermal Field and ... 2. Replacement of primary ... minerals cavity and as replacement of plagioclase and pyroxene in ...
... (quartz, plagioclase, K‐feldspars) ... (fig. 2a – 2c). Primary plagioclase (An 50–60) ... The secondary plagioclase (Pl 2) ...
Hydrothermal alteration of plagioclase in granitic rocks from Proterozoic basement of ... Replacement of plagioclase by Kfeldspar ... secondary Kfeldspar ...
... RHODE ISLAND, CONNECTICUT, AND MASSACHUSETTS, USA ... where the replacement of plagioclase is more extensive, ... Plagioclase, Kfeldspar, ...
... cumulates of seamount magmas of alkalic gabbro with primary ... K 2 O plagioclase; (g) gabbro with secondary ... replacement in ocean crust gabbros on a K 2 ...
The plagioclase feldspars are a set of minerals that ... SELECTIVE STAINING OF KFELDSPAR AND PLAGIOCLASE ON ... 2. REPLACEMENT OF PRIMARY PLAGIOCLASE .
2. REPLACEMENT OF PRIMARY PLAGIOCLASE BY ... Growth of Kfeldspars and plagioclase by replacement processes in rock of the ... to CaAl 2 Si 2 O 8 (Anorthite)
Petrography of the Rosses Granite Complex ... the extensive replacement of plagioclase by coarse ... (Figs I and 2). Plagioclase aggregates, ...
Proceedings of the Ocean Drilling Program, Scientific Results ... secondary minerals is summarized in Table 2, ... partial replacement of primary Plagioclase,
zWhat is hydrothermal alteration mineralogy zSampling methods ... Alteration types2 Replacement Magnetite ... illite, epidote, sphene Caplagioclase Chlorite, illite ...
interstitial to and replacing igneous plagioclase; some of this 2 ... Primary and secondary plagioclase both display a strong lattice ... Secondary plagioclase ...
2 Myrmekite formed during Kmetasomatism. ... Myrmekite formed during Kmetasomatism. Rim myrmekite on zoned plagioclase against interstitial microcline ...
2 Myrmekite formed during Kmetasomatism. Rim myrmekite; ... induced Kfeldspar replacement by myrmekite: ... of primary plagioclase by secondary Kfeldspar ...
sidered to be a secondary phase which ... bite and replacement of the residual ... The presence of primary albitic plagioclase means that albite in ...
MYRMEKITE AND METASOMATIC GRANITE, ISSN ... Replacement Of Primary Plagioclase By Secondary K ... Different Styles Of KFeldspar Replacement Of Plagioclase.
vermicular kaolinite epitactic on primary phyllosilicates in the weathering profiles of anorthosite g1 ... pi = plagioclase; k = kaolinite; ...
Linking Sr systematics to the cooling ... are controlled by the replacement of primary plagioclase by ... in secondary plagioclase with anorthite ...
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