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Cover Page Stratigraphy, ... SPINKS2 Geothermal Geologist, Mighty River Power, ... shows secondary replacement by calcite
... 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 ...
Hydrothermal alteration of plagioclase in granitic rocks ... Secondary minerals ... Replacement of plagioclase by Kfeldspar Subsequent shift ...
Imprint of meteoric water on the stable isotope compositions of igneous and secondary ... primary igneous ... stable isotope compositions of igneous and ...
MYRMEKITE AND METASOMATIC GRANITE, ISSN ... Replacement Of Primary Plagioclase By Secondary K ... Different Styles Of KFeldspar Replacement Of Plagioclase.
K/NA VARIATION IN PHLOGOPITE AND AMPHIBOLE OF UPPER MANTLE PERIDOTITES DUE TO FRACTIONATION OF THE ... showing secondary or replacement ... secondary" (figs. 2
Impactinduced replacement of plagioclase by Kfeldspar in granitoids and ... Abstract The 4kmwide and 0 ... EDS and EPMA studies reveal that the main secondary ...
vermicular kaolinite epitactic on primary phyllosilicates in the weathering profiles of anorthosite g1 ... pi = plagioclase; k = kaolinite; ...
ping of tetredral sheets from half the biotite 2 ... essentially the replacement ... more altered where it abuts a plagioclase than where it touches quartz or K ...
Linking Sr systematics to the cooling ... are controlled by the replacement of primary plagioclase by ... in secondary plagioclase with anorthite ...
nor the myrmekite are primary but are secondary and resulted from ... the remnant islands of optically parallel plagioclase in K ... Total Kreplacement, ...
replacement after plagioclase, ... secondary amphibole ... replacement actinolite after the primary amphibole occur as narrow, ...
Imprint of meteoric water on the stable isotope compositions of igneous and secondary minerals, ... (2) primary ig
sidered to be a secondary phase which ... bite and replacement of the residual ... The presence of primary albitic plagioclase means that albite in ...
Petrography of the Rosses Granite Complex ... the extensive replacement of plagioclase by coarse ... (Figs I and 2). Plagioclase aggregates, ...
2 Myrmekite formed during Kmetasomatism. Rim myrmekite; ... induced Kfeldspar replacement by myrmekite: ... of primary plagioclase by secondary Kfeldspar ...
CHEMISTRY AND ORIGIN OF SECONDARY MINERALS ... than the primary igneous plagioclase. The secondary plagioclase ... % replacement of primary minerals by secondary ...
Primary Textures (crystal/melt ... Secondary Textures (postSecondary Textures ... Kfeldspar/plagioclase interfacefeldspar/plagioclase interface
... and of magmatic plagioclase by hydrothermal plagioclase. These secondary minerals ... and K 2 O than the ... primary plagioclase in the vein halos ...
... solution at 600°C and 2 kbars. The replacement is ... by albite: observations from hydrothermal experiments. Authors; ... K 2 O are present in ...
relative modal proportions of primary and secondary ... (fraction of total 2 vol. %), a prominent Kfeldspar vein ... early albitization of primary plagioclase ...
Dissolution of igneous feldspar and the formation and occurrence of secondary ... the Hengill volcanic centre, ... Replacement of igneous plagioclase by K ...
2. REPLACEMENT OF PRIMARY PLAGIOCLASE BY ... replacement of primary plagioclase by secondary microcline and myrmekite occur. ... probe analyses show that K 2
Proceedings of the Ocean Drilling Program, Scientific Results ... secondary minerals is summarized in Table 2, ... partial replacement of primary Plagioclase,
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