![Annual report . is locality and is therefore an older rock. Theolder porphyritic rock is syenite porphyry, containing, under the microscope,phenocrysts of orthoclase with zonal structure and numerous hornblende crystals in 1920 Annual report . is locality and is therefore an older rock. Theolder porphyritic rock is syenite porphyry, containing, under the microscope,phenocrysts of orthoclase with zonal structure and numerous hornblende crystals in 1920](https://c8.alamy.com/comp/2AWG5R6/annual-report-is-locality-and-is-therefore-an-older-rock-theolder-porphyritic-rock-is-syenite-porphyry-containing-under-the-microscopephenocrysts-of-orthoclase-with-zonal-structure-and-numerous-hornblende-crystals-in-1920-kirkland-lake-gold-area-15-a-fine-grained-feldspathic-groundmass-containing-apatite-and-magnetite-witlisecondary-calcite-minute-blades-of-sericite-are-scattered-through-the-rock-a-diabasic-rock-apparently-a-facies-of-the-lamprophyre-occurs-on-claim-nol-3643-syeniteas-previously-mentioned-thereis-a-red-rock-associated-with-the-basiclamprophyre-either-in-hvoac-2AWG5R6.jpg)
Annual report . is locality and is therefore an older rock. Theolder porphyritic rock is syenite porphyry, containing, under the microscope,phenocrysts of orthoclase with zonal structure and numerous hornblende crystals in 1920
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Synthesis of analcime from sericite and pyrophyllite by microwave-assisted hydrothermal processes - ScienceDirect
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Modelling effect of sericitization of plagioclase on the 40K/40Ar and 40Ar/39Ar chronometers: implication for dating basaltic rocks and mineral deposits | Geological Society, London, Special Publications
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Molecular Expressions Microscopy Primer: Specialized Microscopy Techniques - Polarized Light Microscopy Gallery - Graywacke
![. Bulletin . gnizable in the hand specimen. Microscopic study shows that the principal mineral constituents in theorder of their relative abundance are quartz, sericite, feldspar, chlorite,and carbonate (calcite ?). The textural characteristics and mineral com ... . Bulletin . gnizable in the hand specimen. Microscopic study shows that the principal mineral constituents in theorder of their relative abundance are quartz, sericite, feldspar, chlorite,and carbonate (calcite ?). The textural characteristics and mineral com ...](https://c8.alamy.com/zooms/6/4e6417584cc048efaaa93f200873c0a0/2ce4j2b.jpg)
. Bulletin . gnizable in the hand specimen. Microscopic study shows that the principal mineral constituents in theorder of their relative abundance are quartz, sericite, feldspar, chlorite,and carbonate (calcite ?). The textural characteristics and mineral com ...
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