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Accessory rare metal mineralization in the Coldwell Alkaline Complex, Northwest Ontario
(1990)Accessory rare metal mineralization has been investigated in seven lithologies in intrusive Centres I and III of the Coldwell alkaline complex. All units contain minerals that are enriched in a suite of granitophlle ... -
Aspects of gallium geochemistry in upper mantle-derived lherzolite xenoliths and continental alkaline volcanic rocks
(1989)Various aspects of the geochemistry o-f Ga in upper mantle—derived garnet, Iherzolite xenoliths (from the Bult-fontein Floors mine dump in Kimberley, South Africa), spinel Iherzolite xenoliths (from Mount Porndon, ... -
Aspects of the mineralogy of the Murun alkaline complex, Yakutia, Russia
(2001)The Murun complex contains a number of unusual and mineralogically unique rocks. Many of them are problematic in terms of their genesis and petrographic interpretation. These enigmatic rocks include charoite assemblages, ... -
Assimilation of basic xenoliths within centre 3 syenites of the Coldwell Alkaline Complex, Ontario
(1989)This thesis describes the occurence, mineralogy and assimilation of basic Kenoliths hosted by Centre 3 syenites. Field work ‘was earned out in two locations, one in the vicinity of Neys/Ashburton and the other a ... -
Cathodoluminescence studies of feldspars and apatites from the Coldwell Alkaline Complex
(1995)The Coldwell alkaline Complex is located on the north shore of Lake Superior, and consists of three Centers representing three magmatic episodes. Center I consists of gabbro, and layered and unlayered ferroaugite syenite. ... -
Mineralogy and petrology of the Ham Kimberlite, Somerset Island, N.W.T., Canada
(1982)The Ham diatreme and dyke are post-late Silurian intrusions located in north-central Somerset Island and are the most northerly known kimberlites in the Somerset Island kimberlite province. The Ham diatreme, which ... -
The mineralogy of NYF pegmatites from the Coldwell alkaline complex, Northwestern Ontario
(2009)The Coldwell Complex, northwestern Ontario, is a multiphase alkaline intrusion that is host to rare earth element, actinide and other high field strength element mineralization. Preliminary studies have shown that these ... -
Nb-mineralization of the Oka Carbonatite Complex, Quebec
(2003)A representative collection of minerals &om two niobium deposits found within the Oka carbonatite complex: the Bond Zone deposit; and the NIOC AN deposit, were analysed using an electron microprobe, and compared with ... -
Petrography and mineralogy of the C29/30 Candle Lake Kimberlite, Saskatchewan, Canada
(2010)Petrography and mineralogy of the C29/30 Candle Lake kimberlite (Saskatchewan, Canada) was studied to understand the characteristics of the kimberlite. Using standard optical microscopy three units where distinguished; ... -
Petrography and mineralogy of the Lac de Gras kimberlite field, Slave Province, Northwest Territories : a comparative study
(1999)The kimberlites studied from the Lac de Gras area are composed o f two broad textural types: hypabyssal kimberlite and volcaniclastic kimberlite. Hypabyssal kimberlite is present within small isolated dyke segments and ... -
Petrography, geochemistry and petrogenesis of alkaline dyke rocks from the Coldwell Alkaline Complex, Northwestern Ontario
(1988)Dyke rocks occurring in the Coldwell alkaline instrusive complex, N. W. Ontario, were studied by various petrographic and geochemical means. The resulting observations indicate that 5 types of mafic alkaline lamprophyres, ... -
Petrology of syenites from centre III of the Coldwell Alkaline Complex, Northwest Ontario
(1988)The Coldwell Alkaline Complex, situated on the north shore of Lake Superior, is of Neohelikian age. It is intruded into Archean supracrustal rocks of the Superior Province, near Marathon, Ontario. The complex has a diameter ... -
Petrology, geochemistry, sulphide and platinum-group element mineralization of the Geordie Lake intrusion, Coldwell Complex, Ontario
(1989)PGE-bearing Geordie Lake intrusion is located in the north-central region of the Coldwell comples near the town of Marathon. -
Rare and exotic mineralogy of the western subcomplex of the Deadhorse Creek "diatreme", Northwestern Ontario
(2004)The Deadhorse Creek ‘Diatreme’ is a Proterozoic vent breccia that probably formed in response to early mid-continent rifting. Following emplacement of the breccia, the western subcomplex experienced three alteration ... -
Silicate, sulfide, and platinum - group petrology and mineralogy of the Kawene Intrusion, Quetico subprovince
(1993)The Kawene Intrusion is an ultramafic, layered, metamorphosed Cu- Ni- PGE- bearing intrusion located 29 km east of Atikokan within the Quetico Subprovince of northwestern Ontario. The Kawene Intrusion is emplaced primarily ... -
X-ray diffraction and Rietveld structural refinement of selected fluoroperovskites
(2000)This study presents an X-ray diffraction analysis and Rietveld structural refinement of selected synthetic fluoroperovskite-type compounds including the Na1-xKxMgF3 solid solution series in addition to synthetic analogues ...