 | | Journal (article/letter/editorial) | | syenitic magma evolution at the margins of the Zippa Mountain pluton I. M. Coulson1; , M. Westphal2 , R. G....Regina, Canada 2 Department of Earth and Ocean Sciences, University of British Columbia, Canada 3 Geological...Geological Survey of Canada, Vancouver, Canada 4 Department of Geological Sciences and Geological Engineering...Engineering, Queen’s University, Canada Received March 15, 2006; revised version accepted November 20, 2006...2007 Editorial handling: A. Finch Summary Zippa Mountain pluton is a Mesozoic concentrically-zoned intrusion |  | Pass, H. E., Cooke, D. R., Davidson, G., Maas, R., Dipple, G., Rees, C., Ferreira, L., Taylor, C., Deyell, C. L. (2014) Isotope Geochemistry of the Northeast Zone, Mount Polley Alkalic Cu-Au-Ag Porphyry Deposit, British Columbia: A Case for Carbonate Assimilation. Economic Geology, 109 (4) 859-890 doi:10.2113/econgeo.109.4.859 | Journal (article/letter/editorial) | | Polley Alkalic Cu-Au-Ag Porphyry Deposit, British Columbia: A Case for Carbonate Assimilation* Heidi...(MDRU), University of British Columbia, Vancouver, British Columbia V6T 1Z4, Canada 4 Imperial Metals...Hornby Street, Suite 200, Vancouver, British Columbia V6C 3B6, Canada Abstract Mount Polley is a Late Triassic...of the Mount Polley Complex, located in British Columbia, Canada. The Northeast ore zone at Mount Polley...brecciation caused by the intrusion of mega crystic K-feldspar-phyric monzonite. Stage 2 fluids were silica undersaturated |  | Zappettini, Eduardo O., Villar, Luisa M., Hernández, Laura B., Santos, João O. (2013) Geochemical and isotopic constraints on the petrogenesis of the Puesto La Peña undersaturated potassic complex, Mendoza province, Argentina: Geodynamic implications. Lithos, 162. 301-316 doi:10.1016/j.lithos.2012.11.016 | Journal (article/letter/editorial) | | Geology and Mineral Resources, Argentine Geological-Mining Survey, Argentina GEA Institute, University of... primarily of clinopynoxene, plagioclase, alkali feldspar, nepheline and lesser biotite, magnetite, and...and orthoclase and by the absence of perthitic feldspar. The mafic-mineral poor variety is named juvite...dactilotypic intergrowths of nepheline and potassium feldspar (pseudoleucite) (Villar et al., 2002). There is...rock with macroscopically recognizable euhedral feldspar, black amphibole and pink garnet. Ledmorite consists |  | | Journal (article/letter/editorial) | | Eocene syenitic intrusion from south-Central British Columbia: Evidence for increasing influence of cratonic...Eocene syenitic intrusion from south-Central British Columbia: Evidence for increasing influence of cratonic...Eocene syenitic intrusion from south-central British Columbia: evidence for increasing influence of cratonic...923 Robie Street, Halifax, NS, B3H 3C3, CR a Canada National Taiwan Normal University, Department...Services, 600 Parkridge, Victoria, BC, V8Z 6N7, Canada M c T Jaroslav Dostala*, J. Gregory Shellnuttb |  | | Journal (article/letter/editorial) | | the join nepheline–sanidine with the nepheline–feldspar cotectic line occurs at Kls35Ne38Qtz27 and 635°C...feldspathoid– feldspar-bearing assemblages. The occurrence of jadeite along with feldspathoid and feldspar in nepheline...KAlSi3O8 (K-feldspar) join acts as a thermal barrier at low pressures. The alkali feldspar join thus divides...four binary joins of the quadrilateral albite – K-feldspar – kalsilite – nepheline. In this paper, we compare...portion of the nepheline – kalsilite – albite – K-feldspar quadrilateral (Fig. 1) has been studied at atmospheric |  | | Journal (article/letter/editorial) | | Cancrinite–vishnevite solid solution from Cinder Lake (Manitoba, Canada): crystal chemistry and implications for alkaline...360-1395 Ellice Avenue, Winnipeg, Manitoba R3G 3P2, Canada Department of Earth Sciences, Dalhousie University...1355 Oxford Street, Halifax, Nova Scotia B3H 4R2, Canada CNR – Istituto di Metodologie per l’Analisi Ambientale...Manitoba, 125 Dysart Road, Winnipeg, Manitoba R3T 2N2, Canada [Received 29 August 2016; Accepted 28 October 2016;...a syenitic intrusion at Cinder Lake (Manitoba, Canada), were used to examine how chemical variations |  | | Journal (article/letter/editorial) | | University of Regina, Regina, Saskatchewan, S4S 0A2, Canada 2 Department of Geology and Geophysics, University...Edinburgh, West Mains Road, Edinburgh EH9 3JW, UK 3 British Geological Survey, Murchison House, West Mains...a fine-grained groundmass of the same minerals. Feldspar is generally present in small quantities but is...within a small (300 m in diameter), cylindrical alkali granite stock. It has been the subject of a large...the rock is composed of varying amounts of alkali-feldspar, augite, biotite, calcite and Fe-Ti oxides |  | | Journal (article/letter/editorial) | | (Pouclet et al., 2016), the ~19-17 Ma phonolites and alkali basalts of the Usangu Basin and Tukuyu Journal...2012), Early Miocene (19-17 Ma) phonolites and alkali-basalt of the Usangu Basin and Tukuyu region (respectively)...nephelinites, trachytes, basanites, picrites and alkali basalts (Ebinger et al., 1989; Fontijn et al.,...contain spherical polyphase inclusions rich in alkali-REE carbonate (see below; Fig. 6), but in most...All analyses plot in the sanidine field of the feldspar classification diagram (Fig. S3a), with some crystals |  | | Report (issue) | | of Energy, Mines and Low Carbon Innovation British Columbia Geological Survey Paper 2023-01 Ministry... Competitiveness, and Authorizations Division British Columbia Geological Survey Recommended citation...area, south-central British Columbia. In: Geological Fieldwork 2022, British Columbia Ministry of Energy...Energy, Mines and Low Carbon Innovation, British Columbia Geological Survey Paper 2023-01, pp. 65-84. Front...area, northwestern British Columbia. In: Geological Fieldwork 2022, British Columbia Ministry of Energy |
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