1 edition of The mafic-ultramafic intrusions of the Aitkokan-Quetico area, northwestern Ontario found in the catalog.
The mafic-ultramafic intrusions of the Aitkokan-Quetico area, northwestern Ontario
|The Physical Object|
|Pagination||154 p. & 8 maps in back pocket|
|Number of Pages||154|
What acreage (or percentage) of the continental US is covered by ultramafic/mafic rocks? I am doing a graduate thesis on soils formed from ultramafic/mafic rocks in the GA Piedmont at the University of Georgia, and I cannot seem to find an answer to this deceptively simple question. THE MINLIB BIBLIOGRAPHIC DATABASE An eclectic survey of geology and related sciences. Updated Q MINLIB, established by Graham Wilson in , is a versatile database containing much to offer to both the scientific specialist and the non-technical record provides a bibliographic citation to a book, map, report or journal article, plus 1 to 30 lines of a . Thunder Bay, Ontario--(Newsfile Corp. - Febru ) - Benton Resources Inc. (TSXV: BEX) ('Benton' or 'the Company') is pleased to announce that it . Linear stability theory predicts two or more types of unstable disturbances in a sufficiently high-speed boundary layer. These include the first mode, which is similar to the Tollmien-Schlichting waves found in low-speed flows, and the second mode, which does not depend strongly on Cited by:
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The Mafic-Ultramafic Intrusions of the Atikokan-Quetico Area Northwestern Ontario. Ontario Geological Survey, Open File Report Metamorphism in the Superior Province of northwestern Ontario.
Several mafic–ultramafic intrusions, collectively known as the Quetico Intrusions, occur along the northern boundary of the Quetico metasedimentary subprovince (Fig. 1, Fig. 2).These late Archean intrusions are important in understanding the evolution of this Archean craton because they represent the final mantle-derived magmas before cratonization of the Canadian by: Publication - The Mafic-Ultramafic Intrusions of the Atikokan–Quetico Area, Northwestern Ontario, p.
Publication Number: OFR Date: Author: MacTavish, A.D. Publication - The Mafic-Ultramafic Intrusions of the Atikokan–Quetico Area, Northwestern Ontario Publication Number: OFR Date: Author: MacTavish, A.D. Search Tips. In order to get more accurate results, our advanced search has the following Google-type search functionality: + If you use '+' in front of a word, then that word will be present in the search results.
Large Igneous Provinces and Their Mafic-Ultra mafic Intrusions R E Ernst 1, 2, S M Jowitt 3, J A Blanchard 1, D A Liikane 1,4 1 Department of Earth. A field guide to the mafic-ultramafic layered intrusions of the northern Youanmi Terrane 13th International Ni-Cu-PGE Symposium, Fremantle, Australia: Abstracts Komatiites and associated rocks of the Kalgoorlie-Leonora region.
Kalatongke intrusion in Altay. The Kalatongke mafic–ultramafic intrusion outcrops on the southern side of the regional Irtysh fault zone and intrudes Lower Carboniferous sedimentary and volcanic rocks (Ran and Xiao,Zhang et al., ).Zircon U–Pb dating of the intrusion yielded an age of ± 3 Ma (Han et al., ), and Re–Os dating of chalcopyrite and Cited by: J.A.
Blanchard, R.E. Ernst, C. Samson; Gravity and magnetic modelling of layered mafic–ultramafic intrusions in large igneous province plume centre regions: case studies from the Ga Mackenzie, Ga Kunene–Kibaran, Cited by: 8.
Rocks composed mostly of pyroxene, calcium-rich plagioclase, and minor amounts of olivine make up the mafic family of igneous rocks. The mafic magmas are somewhat more viscous than the ultramafic magmas, but they are still fairly fluid. Additionally, they contain somewhat more gas than do the ultramafic magmas, but not nearly so much as the.
Ultramafic Intrusions in the Beardmore Area. in Summary of Field Work and Other Activities, Ontario Geological Survey, Open File Reportp to Mackasey, W.O. Geology of Dorothea, Sandra and Irwin townships, District of Thunder Bay; Ontario Division of Mines, Report83p.
Middleton, R. Noril’sk Style Cu-Ni-PGEFile Size: 90KB. 48 the upper portions of intrusions, (vii) gold and copper in the roof The mafic-ultramafic intrusions of the Aitkokan-Quetico area and contact aureoles of the 49 large intrusions, and (viii) lateritic nickel in weathered portions of olivine-rich ultramafic intrusions.
50 51 Keywords: Musgrave Province, Giles event, layered intrusions, PGE deposits, magnetite layers 52 53 1. Introduction 54 The Musgrave Province of central Australia hosts File Size: 3MB.
The size of prospective mafic-ultramafic intrusions is typically quite small. The Jinchuan Intrusion in Gansu Province, China, projects to surface in an area of.
It connects to the United States via the Boundary Waters Canoe Area, mainland America's largest protected tract of wilderness. The area receives overvisitors a year. Kevin Callan is a renowned paddling personality, and his new book describes 10 of Quetico's best trips, plus five adventurous excursions to destinations just beyond the /5(10).
Mesoproterozoic Midcontinent Rift-related mafic intrusions in Northwestern Ontario: Continuing geochemical, paleomagnetic, petrographic and geochronologic studies. In Hudak (ed.), Proceedings and Abstracts, Institute on Lake Superior Geology 55th Annual Meeting, Proceedings Vol Part 1 – Program and Abstracts, Characteristics and Petrogenesis of Alaskan-Type Ultramafic-Mafic Intrusions, SE Alaska [Himmelberg, Glen R.] on *FREE* shipping on qualifying offers.
Characteristics and Petrogenesis of Alaskan-Type Ultramafic-Mafic Intrusions, SE AlaskaAuthor: Glen R. Himmelberg. Abstract. The Lac des Iles (LDI) mafic and ultramafic intrusion is located approximately 80 km NNW of Thunder Bay, Ontario.
Pd-Pt-Au-Ni-Cu mineralisation is hosted by mafic components of the intrusion (anorthositic gabbro, gabbro, noritic gabbro and norite).Cited by: The area lies toward the western end of the Wabigoon belt.
One hundred sixty-six gold analyses by neutron activation methods show that the major rock groups including mafic volcanics, felsic volcanics, metasedimentary rocks, mafic-ultramafic intrusions, and felsic plutonic stocks contain average background gold levels of about 1 to 2 by: Page RW, Hoatson DM () Geochronology of the mafic-ultramafic intrusions.
In: Hoatson DM, Blake DH (eds) Geology and economic potential of the Paleoproterozoic layered mafic-ultramafic intrusions in the East Kimberley, Western Australia.
AGSO Bulletin – Google ScholarCited by: Mitchell RH, Platt RG, Cheadle SP. A gravity study of the Coldwell Complex, northwestern Ontario and its petrological significance. Canadian Journal of Earth Sciences Link, ISI, Google Scholar. AbstractCited by: 7.
The intrusions are typically layered, tabular bodies of gabbroic rock with ultramafic basal units which, in places, are more than 6 km thick and up to km2 in areal extent. However, these are minimum dimensions as the intrusions have been dismembered by younger by: The Giles mafic-ultramafic complex and environs, western Musgrave Block, central Australia Preface The Giles Complex comprises a series of over twenty layered mafic-ultramafic intrusions and faulted segments emplaced within the southern granulite terrane of the Musgrave Block, central Australia, over an east-west strike length of some km.
Characteristics and Petrogenesis of Alaskan-Type Ultramafic-Mafic Intrusions, Southeastern Alaska By Glen R. Himmelbergi and Robert A. Loney2 ABSTRACT Alaskan-type ultramafic-mafic intrusions occur along a belt that extends from Duke Island to Klukwan in south eastern Alaska and fall into two age groups— to Ma; and to by: Geology and Geochemistry of Linsey Bay Mafic-Ultramafic Intrusion, Luell Lake, Ontario Supported by OGS and NSERC.
Walker, Joseph. BSc Hons [Lesher/Lightfoot] Orthopyroxene chemistry and petrogenesis of South Range melanorite, Sudbury Igneous Complex Supported by NSERC and Vale. Raskevicius, Thomas.
BSc Hons [Lesher]. The petrology of the layered gabbro intrusion, eastern gabbro, Coldwell alkaline complex, Northwestern Ontario, Canada: evidence for multiple phases of intrusion in a ring dyke.
Lithos Crossref, ISI, Google by: 2. Ultramafic rocks (also referred to as ultrabasic rocks, although the terms are not wholly equivalent) are igneous and meta-igneous rocks with a very low silica content (less than 45%), generally >18% MgO, high FeO, low potassium, and are composed of usually greater than 90% mafic minerals (dark colored, high magnesium and iron content).
The Earth's mantle is. Rainy River District, Ontario, Canada: The Quetico Intrusions of Western Superior Province: Neo-Archean examples of Alaskan/Ural-type mafic–ultramafic intrusions.
Precambrian Research –42; N. Pettigrew, K. Hattori, and J. Percival. () Samuels Lake intrusion: a Late Archean Cu-Ni-PGE-bearing mafic-ultramafic complex.
Learn more about Michael Furtman's books and other writings, and how you can order autographed copies of his books. You'll also find information on the Boundary Waters Canoe Area Wilderness, Quetico Provincial Park, Ojibwe Pictographs, and elk, white-tailed deer, ruffed grouse, bald eagles and ducks and geese.
succession of the Unki area: peridotites, pyroxenites and gabbros. Major and trace elements show a wide range of compositions that have CaO/Al 2 O 3 ~ 1, which are dissimilar to both PAR 11 and MR 92 borehole data.
REE patterns show depletion of LREE, with flat HREEs indicating a different magma to that which gave rise to the Great Dyke. Trevisan, B., Hollings, P.
and Ames, D., Copper-PGE mineralization in the Thunder mafic-ultramafic intrusion, Midcontinent Rift: A PGE and precious metal bearing early-rift conduit system.
Geological Association of Canada-Mineralogical Association of Canada, Joint Annual Meeting, Fredericton, May Program with Abstracts, p.
A layered intrusion is a large sill-like body of igneous rock which exhibits vertical layering or differences in composition and intrusions can be many kilometres in area covering from around km 2 (39 sq mi) to o km 2 (19, sq mi) and several hundred metres to over one kilometre (3, ft) in thickness.
While most layered intrusions are Archean to. MacTAVISH,AD () The Mafic-Ultramafic Intrusions of the Atikokan-Quetico Area, Northwestern Ontario.
OGS OFRpp. plus 8 maps. MUIR,RJ, IRELAND,TR, BENTLEY,MR, FITCHES,WR and MALTMAN,AJ () A Caledonian age for the Kiloran Bay appinite intrusion on Colonsay, Inner Hebrides.
33, Volcanology of Canada includes lava flows, lava plateaus, lava domes, cinder cones, stratovolcanoes, shield volcanoes, submarine volcanoes, calderas, diatremes, and maars, along with examples of more less common volcanic forms such as tuyas and subglacial has a very complex volcanological history spanning from the Precambrian eon at least billion Geology: Volcanism.
The Rainy River project is an advanced-stage gold project situated in Richardson Township, approximately 65 kilometres northwest of Fort Frances in Northwestern Ontario. The Property is centred within the Richardson Township in northwestern Ontario, approximately kilometres south of Kenora and kilometres west of Thunder Bay.
The property has. Transition metal rutiles and titanates from the Deadhorse Creek diatreme complex, northwestern Ontario, Canada R. Garth Platt, Roger H. Mitchell Published online by Cambridge University Press: 05 Julypp. () Samuels Lake intrusion: a Late Archean Cu-Ni-PGE-bearing mafic-ultramafic complex in the western Quetico Subprovince, northwestern Ontario.
GSC Current Research C Data: Mineral Data: Click here to view Actinolite data: Locality Data: Click here to view Samuels Lake intrusive, Rainy River District, Ontario, Canada. Re sulfides were discovered in Cu–Ni–platinum-group elements (PGE) ores of the Zhelos and Tokty-Oi intrusions.
These intrusions can be considered as products of the mantle superplume responsible for Rodinia’s break-up.
The mineral compositions were determined in situ in polished samples. Electron microprobe analyses were mostly consistent with a general formula of Author: Tatiana B. Kolotilina, Aleksey S. Mekhonoshin, Dmitriy A. Orsoev. Wesdome Gold Mines Ltd owns % of the Moss Lake Gold large tonnage, low grade deposit in the Shebandowan area, kilometres west of Thunder Bay, Ontario.
Inthe Company completed metallurgical and grinding tests with positive results. Bergman, S.: Geology and geochemistry of mafic-ultramafic rocks (Koli) in the Handol area, central Scandinavian Caledonides. Norsk Geologisk Tidsskrift, Vol. 73, pp. Oslo ISSN X. The ROdberget ultramafic-mafic Complex in the Handol area in Jiimtland, central Swedish Caledonides, consists of various.
The Big Lake volcanogenic massive sulfide (VMS) occurrence, located in the Schreiber-Hemlo belt in the Wawa subprovince of the Superior province, is hosted in an Archean mafic-ultramafic metavolcanic sequence lacking felsic volcanic or volcaniclastic rocks.
Discovered inthe occurrence is a subeconomic assemblage of pyrrhotite, chalcopyrite, sphalerite, cobaltite, and. PLINIUS n. 34, The geochronological history inferred from the mafic-ultramafic rocks is supported by the U-Pb isotope data from a biotite-leucotonalite showing mingling relationship with gabbronorites, i.e.
these two rock-types are coeval on the basis of field relations.Layered mafic-ultramafic intrusions are either sill-like (e.g. Stillwater) or funnel shaped (e.g.
Skaergaard and Great Dyke). They are typically intruded into rifted cratons and may be associated with tholeitic flood basalt provinces. A good example of this is the Muskox intrusion, which is intimately associated with Coppermine.Start studying Mafic vs Felsic.
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