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Showing 1 to 20 of 35 for “"phlogopite"”.
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The Young's modulus of compression-moulded LLDPE-phlogopite composites
Please read the abstract (Synopsis) in the section 00frontof this document
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The Paragenesis of Synthetic Phyllosilicates on The Talc-Phlogopite Join
Made available in DSpace on 2014-12-14T07:10:55Z (GMT). No. of bitstreams: 1 8009209.pdf: 5670512 bytes, checksum: d414ddd5fb6a9fcb9a7a51e02c9753d6 (MD5) Previous issue date: 1979
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A powder x-ray diffractometer study of the phlogopite-biotite series
Thesis. (Ph.D.) Massachusetts Institute of Technology. Dept. of Geology and Geophysics, 1955.
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The Effect of Adsorbed Ions on The Structural Derangement Temperature of Illite and Phlogopite
Made available in DSpace on 2014-12-09T20:34:14Z (GMT). No. of bitstreams: 1 6507075.pdf: 3149060 bytes, checksum: efb16a296ae96db0fb8a9437f0dfb5a1 (MD5) Previous issue date: 1965
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Documenting multiple metasomatic events within the Finero phlogopite peridotite using chlorine isotopes, Ivrea zone, Italy
… resulted in pervasive development of phlogopite and amphibole throughout much of the body, as well as the formation of phlogopite-rich segregations. Previous trace element and isotopic data have been interpreted by different authors to reflect metasomatism induced by slab-derived, …
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A study of the kimberlites, diamonds and associated rocks and minerals from the monastery mine, South Africa. Volume 1: Text
… Q4 kimberlites are opaque oxide-rich serpentine-phlogopite kimberlites, the Q2, a phlogopite-monticellite kimberlite and the Q3, a monticellite-phlogopite kimberlite. The East-end kimberlite is an opaque oxide-rich serpentine-monticellite kimberlite, but is poorly exposed and highly weathered. …
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Petrology and geochemistry of the diamondiferous K-richteriteand leucite-bearing Kareevlei Kaapvaal lamproite
… for their petrography, mineral chemistry (phlogopite, Krichterite, and diopside), and bulk-rock major and trace elements as well as Sr–Nd isotope compositions. The Kareevlei Kaapvaal lamproites comprise completely altered olivine macrocrysts (3–12 vol.%) set in a groundmass of olivine …
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Geochemistry and petrogenesis of kimberlite intrusions from the eastern lobe the Du Toitspan kimberlite pipe, South Africa
… geochemistry and mineral chemistry (olivine and phlogopite) with the aim of developing semi-quantitative models that constrain their petrogenesis and characterise their respective source region(s). Investigated intrusions include; D13-phlogopite kimberlite, D14-monticellite kimberlite, …
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Geochemistry of selected South African group I, group II and transitional kimberlites located on and off the Kaapvaal craton
… by deformed and anhedrarl olivine and phlogopite macrocrysts, with more subhedral to euhedral olivine and phlogopite phenocrysts and microphenocrysts, set in a groundmass of mostly serpentine, calcite and phlogopite (group 1 kimberlites), or calcite, serpentine, phlogopite and diopside …
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Assessing the Reactive Surface Area of Phlogopite during Acid Dissolution: An Atomic Force Microscopy, X-ray Photoelectron Spectroscopy, and Low Energy Electron Diffraction Study
… of edge and basal surfaces of the mica phlogopite were examined using in situ atomic force microscopy (AFM), x-ray photoelectron spectroscopy (XPS) and low-energy electron diffraction (LEED) in an attempt to characterize the reactive surface area during dissolution. Mica minerals are the …
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Megacryst suite from the Salpeterkop carbonatite complex, Sutherland, Northern Cape, South Africa: an in-depth geochemical study
… South Africa. The clinopyroxene, amphibole, phlogopite and ilmenite megacrysts all appear to be cogenetic, and based on known mineral relationships and intergrowths from xenoliths in the complex, the apparent order of mineral crystallisation is as follows: phlogopite → ilmenite → amphibole → …
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Petrology of the micaceous Koidu and Tongo - Tonguma kimberlites, Man Craton, Sierra Leone
… a combination of detailed petrography, and phlogopite, spinel and olivine chemistry is used in this study. The Koidu rocks are predominantly macrocrystic in texture, whereas the Tongo rocks can broadly be separated into macrocrystic and aphanitic varieties. Olivine is present as macrocrysts …
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A geochemical study of metasomatised peridotite and marid nodules from the Kimberley pipes, South Africa
… contain no texturally equilibrated or primary phlogopite, garnet phlogopite peridotites (GPP), which constitute the most abundant peridotites, phlogopite peridotites (PP) and phlogopite K-richterite peridotites (PKP). Diopside can be present in all four groups. PKP rocks may also contain exotic …
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The petrogenesis of Liberian diamondiferous rocks, Man Craton, West Africa
… I provide detailed petrography, as well as phlogopite and spinel chemistry, bulk-rock geochemistry (for the Camp Alpha samples) and perovskite chemistry (for the Weasua samples). The Camp Alpha rocks contain abundant macrocrysts of olivine (that are completely altered) and ilmenite occurring …
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Petrogenesis of the Northwest corner intrusive phases, Dutoitspan kimberlite, South Africa
… amounts of opaque minerals, monticellite and phlogopite. Olivine is the dominant macrocryst phase and alteration varies from unaltered to highly serpentinised. These intrusive phases also contain variable amounts of crustal xenoliths.
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The oxygen, carbon & hydrogen isotope geochemistry of the Phalaborwa Complex, South Africa
… 1.5‰ range. The δD values for Phalaborwa Complex phlogopite range from -112 to -52‰. The δ18O values of baddeleyite (2.99 ± 0.13‰, 1σ, n=2), olivine (6.12 ± 0.08‰, 1σ, n=2), diopside (7.37 ± 0.40‰, 1σ, n=24), magnetite (3.46 ± 0.75‰, 1σ, n=8), apatite (6.40 ± 0.59‰, 1σ, n=13) and aegirine (6.39 ± …
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The geology and geochemistry of the Lumwana Basement hosted copper-cobalt (uranium) deposits, NW Zambia
… contacts from unmineralized quartz-feldspar±phlogopite basement gneiss to Cu±Co mineralized quartz-phlogopite-muscovite-kyanite-sulphide Ore Schist. The transitional contacts and structural controls on mineralization has led to the hypothesis that these deposits represent metasomatically …
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The Marcona - Mina Justa District, South-Central Perú: Implications for the Genesis and Definition of the Iron Oxide-Copper (-Gold) Ore Deposit Clan
… from magnetite - biotite - calcic amphibole ± phlogopite assemblages, which are inferred to have crystallized from an Fe-oxide melt, to magnetite - phlogopite - calcic amphibole - sulphide assemblages coincided with quenching from above 700°C to below 450°C and with the exsolution of aqueous …
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The kimeerlite occurrences from the vicinity of Rayton, South of premier mine, and from East Lynne, East of Pretoria
… the first generation minerals such as olivine I, phlogopite I and ilmenite in the kimberlite magma. Magnesium enrichment and possible differentiation of the potassium and water rich phase to form the Puntlyf type of micaceous kimberlite, is represented in the second stage. Stage III starts with …
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Classification and petrogenesis of the Tongo dike-01 from the Tongo-Tongoma cluster, Sierra Leone: constraints from bulk rock geochemistry
… that define orangeites. The high abundance of phlogopite in this dike is illustrated by the high bulk-rock concentrations of K2O (~3.03 ± 0.50 wt. %) and Al2O3 (~4.08 ± 1.00 wt. %), similar to those of orangeites. Like the major element geochemistry, the trace element geochemistry of the Tongo …
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