 | | Journal (article/letter/editorial) | | FROM THE PAKEAGAMA LAKE AND SEPARATION LAKE AREAS OF NORTHWESTERN ONTARIO, CANADA ANDREW G. TINDLE§ Department...Geoscience Section, Ontario Geological Survey, Sudbury, Ontario P3E 6B5, Canada JULIE B. SELWAY* Department...2N2, Canada ABSTRACT Tourmaline in petalite-subtype granitic pegmatites from the Pakeagama Lake and Separation...Separation Lake areas of northwestern Ontario provides evidence for the compositional evolution of pegmatite-forming...and pegmatite melt – host-rock interactions. At the former locality, tourmaline from the pegmatite units |  | | Journal (article/letter/editorial) | | THE MCCOMBE SPODUMENE-SUBTYPE RARE-ELEMENT GRANITIC PEGMATITE, NORTHWESTERN ONTARIO, CANADA ANDREW G. TINDLE§...FRED W. BREAKS Ontario Geological Survey, Precambrian Geoscience Section, 933 Ramsey Lake Road, Sudbury...Sudbury, Ontario P3E 6B5, Canada ABSTRACT Liddicoatite, a rare species of tourmaline, has been found in the...the McCombe pegmatite, of complex type and spodumene subtype, an example of the LCT (lithium, cesium,...Uchi – English River subprovincial boundary-zone, Ontario, in the Superior Province of the Canadian Shield |  | Smith, S. R., Foster, G. L., Romer, R. L., Tindle, A. G., Kelley, S. P., Noble, S. R., Horstwood, M., Breaks, F. W. (2004) U-Pb columbite-tantalite chronology of rare-element pegmatites using TIMS and Laser Ablation-Multi Collector-ICP-MS. Contributions to Mineralogy and Petrology, 147 (5) 549-564 doi:10.1007/s00410-003-0538-y | Journal (article/letter/editorial) | | Cs, Ta) pegmatites in the Superior Province of Canada. Conventional TIMS analyses of these columbite-tantalite...W. Breaks Ontario Geological Survey, 933 Ramsey Lake Road, Sudbury, Ontario, P3E 6B5, Canada G. L. Foster...Smith Geological Survey of Canada, 601 Booth St., Ottawa, Ontario, K1A 0E8, Canada fractionation between...Pakeagama Lake pegmatite, 2644±7 Ma for the Separation Rapids group, and 2665±8 Ma for the Mavis Lake group...minerals of these pegmatites are petalite and spodumene (lithium aluminosilicates), albite, tourmaline |  | | Report (issue) | | Ontario Geological Survey Open File Report 6000 Summary of Field Work and Other Activities 1999 1999...1999 ONTARIO GEOLOGICAL SURVEY Open File Report 6000 Summary of Field Work and Other Activities 1999...Marshall Lake volcano on the northern margin of eastern Wabigoon Subprovince, northwestern Ontario; in Summary...Summary of Field Work and Other Activities 1999, Ontario Geological Survey, Open File Report 6000, p.23-1...Printer for Ontario, 1999 © Queen’s Printer for Ontario, 1999. Open File Reports of the Ontario Geological |
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