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WU, FU-YUAN, MITCHELL, ROGER H., LI, QIU-LI, ZHANG, CHANG, YANG, YUE-HENG (2017) Emplacement age and isotopic composition of the Prairie Lake carbonatite complex, Northwestern Ontario, Canada. Geological Magazine, 154 (2) 217-236 doi:10.1017/s0016756815001120

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Reference TypeJournal (article/letter/editorial)
TitleEmplacement age and isotopic composition of the Prairie Lake carbonatite complex, Northwestern Ontario, Canada
JournalGeological Magazine
AuthorsWU, FU-YUANAuthor
MITCHELL, ROGER H.Author
LI, QIU-LIAuthor
ZHANG, CHANGAuthor
YANG, YUE-HENGAuthor
Year2017 (March)Volume154
Page(s)217-236Issue2
PublisherCambridge University Press (CUP)
DOIdoi:10.1017/s0016756815001120Search in ResearchGate
Mindat Ref. ID261114Long-form Identifiermindat:1:5:261114:7
GUIDc7a319d9-019b-44b5-b8bb-8abddcf3005c
Full ReferenceWU, FU-YUAN, MITCHELL, ROGER H., LI, QIU-LI, ZHANG, CHANG, YANG, YUE-HENG (2017) Emplacement age and isotopic composition of the Prairie Lake carbonatite complex, Northwestern Ontario, Canada. Geological Magazine, 154 (2) 217-236 doi:10.1017/s0016756815001120
Plain TextWU, FU-YUAN, MITCHELL, ROGER H., LI, QIU-LI, ZHANG, CHANG, YANG, YUE-HENG (2017) Emplacement age and isotopic composition of the Prairie Lake carbonatite complex, Northwestern Ontario, Canada. Geological Magazine, 154 (2) 217-236 doi:10.1017/s0016756815001120
In(2017, March) Geological Magazine Vol. 154 (2) Cambridge University Press (CUP)
Abstract/NotesAbstractAlkaline rock and carbonatite complexes, including the Prairie Lake complex (NW Ontario), are widely distributed in the Canadian region of the Midcontinent Rift in North America. It has been suggested that these complexes were emplaced during the main stage of rifting magmatism and are related to a mantle plume. The Prairie Lake complex is composed of carbonatite, ijolite and potassic nepheline syenite. Two samples of baddeleyite from the carbonatite yield U–Pb ages of 1157.2±2.3 and 1158.2±3.8 Ma, identical to the age of 1163.6±3.6 Ma obtained for baddeleyite from the ijolite. Apatite from the carbonatite yields the same U–Pb age of ~1160 Ma using TIMS, SIMS and laser ablation techniques. These ages indicate that the various rocks within the complex were synchronously emplaced at about 1160 Ma. The carbonatite, ijolite and syenite have identical Sr, Nd and Hf isotopic compositions with a 87Sr/86Sr ratio of ~0.70254, and positive εNd(t)1160 and εHf(t)1160 values of ~+3.5 and ~+4.6, respectively, indicating that the silicate and carbonatitic rocks are co-genetic and related by simple fractional crystallization from a magma derived from a weakly depleted mantle. These age determinations extend the period of magmatism in the Midcontinent Rift in the Lake Superior area to 1160 Ma, but do not indicate whether the magmatism is associated with passive continental rifting or the initial stages of plume-induced rifting.

References Listed

These are the references the publisher has listed as being connected to the article. Please check the article itself for the full list of references which may differ. Not all references are currently linkable within the Digital Library.

Sage (1987) Geology of Carbonatite—Alkalic Rock Complexes in Ontario: Prairie Lake Carbonatite Complex, District of Thunder Bay
Sage R. P. 1983. Geology of the Prairie Lake Carbonatite Complex. Ontario. Geological Survey Open File Report, 5412, 133 pp.
Mariano (1989) The Canadian Mineralogist Wöhlerite: chemical composition, cathodoluminescence and environment of crystallization 27, 709
Mariano A. N. 1979. Report of the geology and economic potential of the Prairie Lake carbonatite-alkalic complex. 18 pp.
Kwon (1989) Carbonatites: Genesis and Evolution , 360
Krasnova (2004) Phoscorites and Carbonatites from Mantle to Mine: The Key Example of the Kola Alkaline Province , 43
Rukhlov (2015) Symposium on Strategic and Critical Materials , 39
Purtich E. , Armstrong T. & Yassa A. 2010. Technical Report on the Prairie Lake Property, Thunder Bay Mining Division, Ontario, Canada. NI 43–101 Technical Report, 109 pp.
Yang (2008) Chinese Science Bulletin In situ Nd isotopic measurements of geological samples by laser ablation 53, 1062
Gittins (2003) Periodico di Mineralogia Myth and reality in the carbonatite – silicate rock “association 72, 19
Platt (1990) The Canadian Mineralogist The carbonatites and fenites of Chipman Lake, Ontario 28, 241
Griffin (2008) Laser Ablation-ICP–MS in the Earth Sciences: Current Practices and Outstanding Issues , 308
Ludwig (2003) ISOPLOT 3.0 – A Geochronological Toolkit for Microsoft Excel , 70
Bell (1980) Geoscience Research Grant Program, Summary of Research 1979–1980 , 16
Bell (1989) Carbonatites: Genesis and Evolution , 278
Bottriell (1975) Rubidium–strontium isochron age studies of Nemegosenda and Prairie Lake 44
Ernst (1997) Large Igneous Provinces: Continental, Oceanic, and Planetary Flood Volcanism , 297


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