2 edition of Porphyritic intrusions and related mineralization in the Flin Flon volcanic belt found in the catalog.
Porphyritic intrusions and related mineralization in the Flin Flon volcanic belt
D. A. Baldwin
by Manitoba Dept. of Energy and Mines, Mineral Resources Division in [Winnipeg]
Written in English
Bibliography: p. 21-23.
|Statement||by D.A. Baldwin.|
|Series||Economic geology report ;, ER79-4, Economic geology report (Winnipeg, Man.) ;, ER79-4.|
|LC Classifications||QE611.5.C2 B34 1980|
|The Physical Object|
|Pagination||ii, 23 p. :|
|Number of Pages||23|
|LC Control Number||82149770|
The volcanic sequences of the Snow Lake arc assemblage contain prominent zones of alteration that visibly affect approximately 25% of the volcanic strata and associated synvolcanic intrusions. These alteration zones, which were formed by synvolcanic hydrothermal activity, were subsequently recrystallized during Ga regional metamorphism and. Porphyritic is an adjective used in geology, specifically for igneous rocks, for a rock that has a distinct difference in the size of the crystals, with at least one group of crystals obviously larger than another group. Porphyritic rocks may be aphanites or extrusive rock, with large crystals or phenocrysts floating in a fine-grained groundmass of non-visible crystals, as in a porphyritic.
Discover Abitibi Intrusion Subproject: An Integrated Study of Intrusive Rocks Spatially Associated with Gold and Base Metal Mineralization in Abitibi Greenstone Belt, Timmins Area and Clifford Township. Ontario Geological Survey Open File , pages. Piercey, S.J., Reconnaissance geological and geochemical studies of the Joe Mountain. The Brunne Lake area occupies the central portion of the Flin Flon Belt, which has not been the focus of geological investigation since the ’s, and is characterized by a crescent-shaped narrow belt of supracrustal rocks dominated by mafic volcanic rocks and synvolcanic gabbro dikes, with minor shallow porphyritic intrusions and felsic.
The ability to locate favourable environments is equally applicable to other terrains dominated by volcanic arc rocks (e.g. La Ronge-Lynn Lake belt). Clues from the Low-grade Flin Flon Volcanic Belt. Much of the work in the weakly metamorphosed areas has dealt with the environment of VMS mineralization and the nature of its attendant alteration. Introduction and Mining History --Mineral Resources of Canada A Synthesis of Major Deposit-Types, District Metallogeny, the Evolution of Geological Provinces, and Exploration Methods --An Introduction / Wayne D. Goodfellow --An Overview of the Economic and Geological Contexts of Canada's Nonferrous Metalliferous Mineral Deposit Types / John W.
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Baldwin. Porphyritic intrusions and related mineralization in the Flin Flon volcanic belt. [Winnipeg]: Manitoba Dept. of Energy and Mines, Mineral Resources Division, (OCoLC) Material Type: Government publication, State or province government publication: Document Type: Book: All Authors / Contributors: D A Baldwin.
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Everyday low prices and free delivery on eligible : D. A Baldwin. Porphyritic plutons, stocks, and dikes are volumetrically small, account for less than 10 percent by area of the phaneritic intrusions in the district, and are genetically related to porphyry-style mineralization at Batu Hijau and Arung Ara (Figs.
3, 4, and 6; Table 1). Title Sources; Porphyritic intrusions and related mineralization in the Flin Flon volcanic belt, Geological investigations in the Flin Flon greenstone belt oriented toward platinum group elements (PGE) focused on four related topics: 1) A detailed investigation of the petrography and mineralogy of the McBratney Lake PGE-Au occurrence was carried out to elucidate the possible origin and formation of this mineralization.
Petrographic investigations and geochemical data indicate that all of the porphyritic intrusions were oxidized, water rich, and subduction-related calc-alkaline magmas. Zircons from the porphyritic intrusions have a wide range in the ε Hf (0–) indicating that they were sourced from mixing of mantle-derived mafic, and crust-derived felsic melts.
Moreover, the variation of trace element content of plagioclase phenocrysts. Disseminated Stratiform Base Metal Mineralization along the Contact Zone of the Burntwood River Metamorphic Suite and the Sickle Group By D.A. Baldwin. ER Porphyritic Intrusions and Related Mineralization in the Flin Flon Volcanic Belt By D.A.
Baldwin. ER Nickel-Copper Mineralization in the Lynn Lake Gabbro By R.H. Pinsent. ER Large subvolcanic intrusions are recognized within most Precambrian VMS camps. Of these, 80% are quartz diorite–tonalite–trondhjemite composite intrusions.
The VMS camps spatially associated with. Volcanic types occur in the roots of volcanoes, with mineralization both in the volcanic rocks and in associated comagmatic plutons.
Classic types occur with high-level, post-orogenic stocks That intrude unrelated host rocks; mineralization may occur entirely within the stock entirely in the country rock, or in both. The Flin Flon-Glennie Complex or Flin Flon Greenstone Belt, extends over a km interval on the southern margin of the Trans-Hudson orogen in northern Manitoba and Saskatchewan, hosts clusters of volcanic hosted massive sulphide (VHMS) copper-zinc-gold deposits surrounding Flin Flon, Snow Lake - km to the east of Flin Flon, Hanson Lake - 60 km west of Flin Flon.
The Busang mineral prospect in Kalimantan, Indonesia, was reported to host a large Au resource until when it was revealed that drill core samples had been deliberately and systematically contaminated (“salted”) with extraneous Au to falsify resource estimates.
One month before the fraud was uncovered, Dr. Milligan, then professor emeritus of geology. Proterozoic Flin Flon-Snow lake greenstone belt (Flin Flon Domain), which lies along the southern edge of the Precambrian Shield.
The belt forms the southern most part of the exposed Trans-Hudson Orogen (Lewry and Collerson, ). The lower grade greenstone belt is transitional northwards into the gneisses of the Kis. Flin Flon indicates Amisk volcanism occurred around Ma (Syme et al., ), while a feldspar porphyry from Hanson Lake gives an age of ±12 Ma (Bick ford et al., ).
The oldest intrusive rock identified to date in the Flin Flon-Amisk Lake part of the belt is a sheared granodiorite exposed at Mystic Lake. This rock. The rock assemblages in the Flin Flon greenstone belt can be recognized to have formed in distinct, dominantly oceanic tectonic settings related to the Manikewan Ring of Fire, an island-arc – back-arc-basin subduction zone complex broadly analogous to Japan and the Sea of Japan today but with a wider range of complexities including the.
Porphyry deposits are large, low- to medium-grade deposits in which primary (hypogene) ore minerals are dominantly structurally controlled and are spatially and genetically related to felsic to intermediate porphyritic intrusions (Kirkham,).
Porphyritic Intrusions and Related Mineralization in the Flin Flon Volcanic Belt By D.A. Baldwin. Economic Geology Report ER Nickel-Copper Mineralization in the Lynn Lake Gabbro By R.H. Pinsent. Economic Geology Report ER The Flin Flon domain, Trans-Hudson orogen, Canada, is an example of a Proterozoic greenstone belt that hosts a large number of small mesothermal gold occurrences.
The greenstone belt consists of tholeiitic to calc-alkaline volcanic rocks (Amisk Group; approximately Ma) unconformably overlain by molasse-type sedimentary rocks (Missi.
Using Clustered Heat Maps in Mineral Exploration to Visualize Volcanic-Hosted Massive Sulfide Alteration and Mineralization Article in Natural Resources Research. Porphyry Cu mineralization related to the small Tertiary volcanic intrusions in the Bučim ore deposit, Eastern Macedonia Todor Serafimovski 1, Goran Tasev, Sabina Strmić Palinkaš2, Ladislav A.
Palinkaš3 and Lazar Gjorgjiev1 1 Goce Delčev University, Faculty of Natural and Technnical Sciences, Krste Misirkov bb, PO.
BoxMK Štip. Exploring for Volcanic Massive Sulphide Deposits Geological understanding of volcanic massive sulphide (VMS) deposits continues to evolve with on-going seafloor studies complimented by research projects targetting well-preserved ancient deposits such as those occurring in the Paleoproterozoic Flin Flon Belt.found: Baldwin, D.
A. Porphyritic intrusions and related mineralization in the Flin Flon volcanic belt, t.p. (Flin Flon) found: NLC 2/21/84 (AACR 2: Flin Flon (Man.)) found: GeoNames, algorithmically matched, (ppl; 54°46ʹ06ʺN °51ʹ54ʺW).The Flin Flon and associated cluster of volcanic hosted massive sulphide (VHMS) copper-zinc-gold deposits are located in northern Manitoba and Saskatchewan in Canada, ~ km NNW of Winnipeg, and km NE of Saskatoon.
The main Flin Flon group of deposits straddle the Provincial border, and are situated within a 25 km radius around the town of Flin Flon.