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Separation Lake Pegmatite

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Journal Article
Published: 01 June 2002
The Canadian Mineralogist (2002) 40 (3): 753-788.
..., remarquée aussi dans une veine tardive à pollucite. (Traduit par la Rédaction) Abstract Tourmaline in petalite-subtype granitic pegmatites from the Pakeagama Lake and Separation Lake areas of northwestern Ontario provides evidence for the compositional evolution of pegmatite-forming melts through magmatic...
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Journal Article
Published: 01 June 1997
The Canadian Mineralogist (1997) 35 (3): 659-671.
Journal Article
Published: 01 April 1998
The Canadian Mineralogist (1998) 36 (2): 637-658.
... composition); localized interaction of the pegmatite-forming magma with mafic metavolcanic rocks is proposed for their origin. Of wodginite-group minerals worldwide, only the "giant" Tanco pegmatite at Bernic Lake in Manitoba hosts wodginite with a spread of compositions comparable to that at Separation...
Journal Article
Published: 23 February 2015
The Canadian Mineralogist (2015) 52 (5): 857-872.
... in Figures 3 to 6 . Out of all the analyzed U-bearing minerals, gadolinite-(Y) from the Shatford Lake pegmatites is the only one to demonstrate a high degree of concordance and yields a 207 Pb/ 206 Pb age of 2656.1 ± 1.4 [5.4] Ma (MSWD = 1.8; Fig. 3 ). The quality of the gadolinite material separated...
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Journal Article
Published: 01 April 2005
The Canadian Mineralogist (2005) 43 (2): 769-793.
... ), notably at Separation Lake (Marko’s pegmatite) and Pakeagama Lake, where nanpingite, with up to 23.07 wt.% Cs 2 O, is (rarely) found ( Breaks & Tindle 2002 ; A.G. Tindle, unpubl. data). As there is no muscovite in the lepidolite unit of the McCombe pegmatite, the lepidolite could be primary...
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Journal Article
Published: 01 January 2005
Exploration and Mining Geology (2005) 14 (1-4): 1-30.
...: the Allison Lake batholith at the Uchi-English River subprovincial boundary, and the Onion-Walkinshaw Lakes area along the Armstrong Highway, Quetico subprovince. The peraluminous Separation Rapids pluton (4 km wide) is parent to the Separation Rapids pegmatites. Evidence for the genetic linkage between...
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MINERAL SPECIES FOUND IN GRANITIC <b>PEGMATITE</b> AT <b>SEPARATION</b> <b>LAKE</b> AND PAKEAGAM...
Published: 01 June 2002
TABLE 2. MINERAL SPECIES FOUND IN GRANITIC PEGMATITE AT SEPARATION LAKE AND PAKEAGAMA LAKE
Journal Article
Published: 01 June 2006
The Canadian Mineralogist (2006) 44 (3): 599-623.
...Andrew Stilling; Petr Ćerný; Peter J. Vanstone Abstract The Tanco pegmatite deposit at Bernic Lake, in southeastern Manitoba, is a virtually completely hidden, essentially undeformed, subhorizontal, bilobate, saddle-shaped body ~1520 m long, 1060 m wide and up to ~100 m thick. The highly...
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Journal Article
Published: 01 April 2009
The Canadian Mineralogist (2009) 47 (2): 315-336.
... to the 2685 Ma Ghost Lake Batholith. The Taylor 2 pegmatite consists of three separate limbs that intruded a wide zone of chlorite schist near the eastern end of an altered ultramafic sill. Most of the beryl and emerald occurs in a “zone of mixing” between the southern and central limbs of the pegmatite...
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Journal Article
Published: 01 January 2005
Exploration and Mining Geology (2005) 14 (1-4): 79-94.
...J. KEITH SEIDLER; DAVID R. LENTZ; DOUGLAS C. HALL; NICHOLAS SUSAK Abstract The Ta-Nb-Zr-REE-rich McKeel Lake alkali granite pegmatite-aplite dike swarm is hosted within the late Silurian multiphase alkali granite intrusion (Welsford) near Browns Flats in southwestern New Brunswick. A steep easterly...
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Journal Article
Published: 01 April 1998
The Canadian Mineralogist (1998) 36 (2): 283-301.
..., but that of Nb-Ta is very advanced. The YITT-B pegmatites have only a limited number of approximate analogs on a global scale, and they are unique within the Cat Lake-Winnipeg River pegmatite field. The diversity of pegmatite categories in this field, accentuated by the exotic features of the examined pegmatite...
Journal Article
Published: 01 April 1986
American Mineralogist (1986) 71 (3-4): 501-517.
...Petr ČernÝ; Bruce E. Goad; Frank C. Hawthorne; Ron Chapman Abstract The Greer Lake pegmatitic granite and related exterior rare-element pegmatites of the beryl-columbite type intrude metabasalt and tonalite gneiss in the Archean English River Subprovince of southeastern Manitoba. Columbite...
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COMPOSITION OF BULK K-FELDSPAR <b>SEPARATES</b>, BRAZIL <b>LAKE</b> <b>PEGMATITE</b>, NOVA SCOTI...
Published: 01 June 2006
TABLE 1. COMPOSITION OF BULK K-FELDSPAR SEPARATES, BRAZIL LAKE PEGMATITE, NOVA SCOTIA
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TRACE-ELEMENT DATA ON MUSCOVITE <b>SEPARATES</b>, BRAZIL <b>LAKE</b> <b>PEGMATITE</b>, NOVA SCOT...
Published: 01 June 2006
TABLE 3. TRACE-ELEMENT DATA ON MUSCOVITE SEPARATES, BRAZIL LAKE PEGMATITE, NOVA SCOTIA
Journal Article
Published: 01 August 2009
The Canadian Mineralogist (2009) 47 (4): 745-764.
... pegmatites crystallize owing to undercooling. The data for Brazil Lake are discussed in this context below. High-quality mineral separates were produced by hand-picking mm-size mineral fragments from crushed material using a binocular microscope. Petrographic examination of polished sections of the same...
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Journal Article
Published: 01 June 2011
The Canadian Mineralogist (2011) 49 (3): 777-791.
... – 635 . Tindle , A.G. & Breaks , F.W. ( 2000 ): Columbite–tantalite mineral chemistry from rare-element granitic pegmatites: Separation Lake area, N.W. Ontario, Canada . Mineral. Petrol . 70 , 165 – 198 . van Lichtervelde , M. , Linnen , R.L. , Salvi , S. &...
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Journal Article
Published: 01 May 2017
The Canadian Mineralogist (2017) 55 (3): 483-500.
... is part of the Winnipeg River-Cat Lake pegmatite field ( Černý et al . 1981 ). This vast pegmatite field has been subdivided into two pegmatite districts and subsequently into several different pegmatite groups according to their mineralogy, geochemistry, and location ( Černý et al . 1981 ). The Bernic...
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Journal Article
Published: 01 June 2006
The Canadian Mineralogist (2006) 44 (3): 563-598.
...TABLE 1. COMPOSITION OF BULK K-FELDSPAR SEPARATES, BRAZIL LAKE PEGMATITE, NOVA SCOTIA ...
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Journal Article
Published: 01 December 2012
The Canadian Mineralogist (2012) 50 (6): 1807-1822.
... pegmatites in the Archean Red Cross Lake greenstone belt, Sachigo Subprovince of the Superior Province in the Canadian Shield, indicate a comagmatic origin and an enormous range of fractionation. The leucogranite + pegmatite assemblages, probably emplaced at ~2.65 Ma, represent an upward fingering-out system...
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Journal Article
Published: 01 December 2012
The Canadian Mineralogist (2012) 50 (6): 1823-1838.
...William C. Brisbin; Ray K. Eby; M. Timothy Corkery; Petr Černý; Leonard E. Chackowsky; Karen Ferreira; Norman M. Halden; Robert E. Meintzer; David L. Trueman Abstract Three types of subvertical leucogranites and pegmatites populate the Red Cross Lake pegmatite field, located in the Red Cross Lake...
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