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Wednesday, April 29, 2020 | History

2 edition of Serpentinized ultramafic rocks of the Manitoba nickel belt found in the catalog.

Serpentinized ultramafic rocks of the Manitoba nickel belt

Colin J. A. Coats

Serpentinized ultramafic rocks of the Manitoba nickel belt

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Published by s.n.] in [s.l .
Written in English

    Subjects:
  • Rocks, Ultrabasic.,
  • Serpentine -- Manitoba

  • Edition Notes

    Statementby Colin J.A. Coats.
    Classifications
    LC ClassificationsQE"462"U4"C6"1966
    The Physical Object
    Pagination280 l. :
    Number of Pages280
    ID Numbers
    Open LibraryOL21658881M

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Serpentinized ultramafic rocks of the Manitoba nickel belt by Colin J. A. Coats Download PDF EPUB FB2

Formation and petrology. Serpentinization is a geological low-temperature metamorphic process involving heat and water in which low-silica mafic and ultramafic rocks are oxidized (anaerobic oxidation of Fe 2+ by the protons of water leading to the formation of H 2) and hydrolyzed with water into serpentinite.

Peridotite, including dunite, at and near the seafloor and in mountain. 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. Abundant sill-like bodies of serpentinized ultramafic rocks, with associated nickel sulfide deposits, are found on the western side of the Thompson Nickel Belt near the Moak Lake-Setting Lake cataclastic fault zone.

The ultramafic rocks range in composition from Serpentinized ultramafic rocks of the Manitoba nickel belt book to orthopyroxenite and feature variable by: 9. chromium geochemistry in serpentinized ultramafic rocks and serpentine soils from the franciscan complex of california christopher oze*†, scott fendorf, dennis k.

bird, and robert g. coleman. T he T Hompson Nickel Belt in northern Manitoba is the second largest Ni-Cu-(PGE) mining camp in Canada, after Sudbury, with a premining resource estimated at million metric tons (Mt) at percent Ni, percent Cu, percent Co, g/t Pt, g/t Pd, g/t Rh, g/t Ru, g/t Ir, and Serpentinized ultramafic rocks of the Manitoba nickel belt book Os (Naldrett, ).It is the second largest camp of.

IN THE BIRD RIVER GREENSTONE BELT (PARTS OF NTS 52L). by D.C. Peck and P. Theyer Peck, D.C. and Theyer, P. PGE-copper-nickel potential of mafic-ultramafic intrusions in the Bird River greenstone belt (parts of NTS 52L); in Manitoba Energy and Mines, Geological Services, Report of Activities,p.

GS SUMMARY. All three are produced by the hydration of the ferromagnesian minerals of ultramafic rocks at low temperature and pressure under conditions favorable for the formation of each member of the group.

These conditions include temperatures of generally less than °C, and fluid pH’s in excess of 10 with low pCO by: al., ) forms a 10 to 35 km wide belt of variably reworked Archean basement gneisses and Early Proterozoic cover rocks along the northwestern margin of the Superior craton (Figs.

1, 2, and 3). Tile belt is interpreted as a remnant of one of the Early Proterozoic continental margins that formed in response to break-up of a Late Archean (super?).

Spinel group minerals Serpentinized ultramafic rocks of the Manitoba nickel belt book metamorphosed ultramafic rocks from Río de Las Tunas belt, Central Andes, Argentina Article (PDF Available) in Geologica Acta 11(2).

Many of the serpentinized ultramafic rocks have a loss on ignition (LOI) content that exceeds the structural capacity of serpentine to host water (~ 16 wt.% H 2 O) (O'Hanley, ). Ultramafic rocks with a significant carbonate component (> 1 C wt.%) typically have > 20 wt.% LOI, which is likely due to the presence of magnesite (% CO 2 Cited by: 4.

Geologic unit mapped in Oregon: Predominantly harzburgite and dunite with both cumulate and tectonite fabrics. Locally altered to Serpentinized ultramafic rocks of the Manitoba nickel belt book. Includes gabbroic rocks and sheeted diabasic dike complexes. Comprises Josephine ophiolite of Harper (), ophiolites of Onion Mountain, Sexton Mountain, Pearsoll Peak, Rogue River, and Riddle areas (Smith and others, ) and.

Geologic unit mapped in Oregon: Peridotite, pyroxenite, gabbro, and norite. Light-green, gray, and black serpentine, mostly derived from peridotite; commonly highly sheared; in places includes some metavolcanic rocks and metamorphosed inclusions Serpentinized ultramafic rocks of the Manitoba nickel belt book keratophyre and chert.

Includes ultramafic and mafic phases of the ophiolitic Canyon Mountain Complex of Thayer (. Clowes, Ronald Wyman, Derek and Kerrich, Robert Mantle plume – volcanic arc interaction: consequences for magmatism, metallogeny, and cratonization in the Abitibi and Wawa subprovinces, CanadaThis article is one of a series of papers published in this Special Issue on the theme Lithoprobe — parameters, processes, and the evolution of a by: Chemical Geology, 17 () Elsevier Scientific Publishing Company, Amsterdam -- Printed in The Netherlands GEOCHEMISTRY OF NICKEL, COBALT AND COPPER IN ALPINE-TYPE ULTRAMAFIC ROCKS O.F.

GULAQAR and M. DELALOYE Department of Mineralogy, Section of Geosciences, University of Geneva, Geneva (Suisse)* (Received Septem Cited by: Ultramafic Rock.

An igneous rock with a very low silica content and rich in minerals such as hypersthene, augite, and rocks are also known as ultrabasic rocks. Examples include: peridotite, kimberlite, lamprophyre, lamproite, dunite, and in the photo is a specimen of peridotite. T he T hompson nickel belt in northern Manitoba is the second largest komatiite-associated Ni-Cu-PGE camp in the world, containing ∼17 percent of global resources associated with komatiites (Hoatson et al., ), and the second largest Ni-Cu-PGE mining camp in Canada (after Sudbury) with a premining resource estimated at million metric tons (Mt) at percent Ni.

THE SOUTH MANASAN ULTRAMAFIC INTRUSION, THOMPSON NICKEL BELT, MANITOBA by Keywords: nickel, magmatic ore deposit, Thompson Nickel Belt, ultramafic rocks, disseminated sulfide, komatiite.

v Statement of responsibilities High tenor Ni-PGE sulfide mineralization of the South Manasan ultramafic intrusion, Thompson Nickel Belt, Manitoba Cited by: 2. This book presents an extensive overview of literature published globally in the last decades on REE distribution in minor and accessory minerals from various types of ultramafic, mafic, and other plutonic rocks.

It is a continuation of the author’s work published in Rare Earth Elements in Ultramafic and Mafic Rocks and their Minerals Price: $ Strategic minerals (nickel, chromium, cobalt, and others) occur associated with these rocks, and their sparse and irregular global distribution indicates that ultramafic terrains are few and far between.

I will continue to look for some better values, and will certainly update this answer if/when I find them. Click here to ask GeoMan a question. Other articles where Ultramafic rock is discussed: mineral deposit: Carbonatite deposits: silica contents) or to the ultramafic igneous rocks (rocks with silica contents below approximately 50 percent by weight) known as kimberlites and lamproites.

These associations suggest a common derivation, but details of the way that carbonatite magmas might concentrate geochemically. chemistry and petrogenesis of mafic and ultramafic rocks associated with the Raglan and Thompson Ni-Cu-PGE de-posits, and he oversaw the geochemical component of the fol-low-up multidisciplinary study of the geology, stratigraphy, petrogenesis, and metallogenesis of the Thompson nickel belt, Manitoba.

From tohe was a senior scientistCited by: types related to ultramafic rocks. They were selected based on the presence of ultramafic rocks of Eocene age and the presence of known podiform chromite, ultramafic-hosted talc-magnesite, and serpentine-hosted asbestos deposits (often in clusters).

For two of the tracts, umf01A and B, estimates were made ofFile Size: 4MB. Ultramafic rocks are all plutonic rocks, there are no volcanic counterparts, as there are for rocks that are classified in the QAPF diagram.

The reason is that these rocks form as cumulates by segregation of solid crystals from magma, and not by solidification of the magma itself. This photo has been shown times. Ultramafic rocks comprised of forty to one hundred percent percent olivine. Contain variable but greater than 10% of both ortho- and clino-pyroxene, and accessory phases.

Common in the mantle. Represents "Fertile" mantle that has not undergone a melt extraction event. This book gives an overview of the world’s literature on analytical data and theoretical concepts of the regularities of rare earth elements (REE) in ultramafic and mafic rocks of different chemical and mineral compositions – mantle restites (including those composing mantle xenoliths in alkali basaltoids), highly magnesium hypabyssal rocks, plutonic rocks of mafic-ultramafic and Price: $   Most geology students know what a basalt or gabbro is, but occasionally even introductory texts will refer to different mafic rocks and ultramafic rocks.

This list very briefly describes a few of these, just enough to differentiate between them based on composition and formation. Mafic (45–52% silica) Intrusive.

PETROLOGY OF THE ULTRAMAFIC AND GABBROIC ROCKS OF THE BRADY GLACIER NICKEL-COPPER DEPOSIT, FAIRWEATHER RANGE, SOUTHEASTERN ALASKA By GLEN R.

HIMMELBERG* an(j ROBERT A. LONEY ABSTRACT The basal cumulates of the La Perouse layered gabbro, the Brady Glacier cumulates, are the host rocks for the Brady GlacierCited by: 6. Kambalda type komatiitic nickel ore deposits are a class of magmatic iron-nickel-copper-platinum-group element ore deposit in which the physical processes of komatiite volcanology serve to deposit, concentrate and enrich a Fe-Ni-Cu-(PGE) sulfide melt within the lava flow environment of an erupting komatiite volcano.

ultramafic rocks may be the remnants of an ocean basin, possibly the basement of Wrangellia that collapsed during subsequent accretion in the Late Mesozoic (Nokleberg et al.,Patton et al., ). Alaskan-type ultramafic rocks, found along a km-long belt west of.

Igneous rocks composed mostly of the light-colored silicate minerals quartz and feldspar. Also known as felsic. Rare at Earth's surface but much of Earth's upper mantle is composed of an ultramafic rock called Peridotite. Ore. minerals that contain a useful substance that can be mined at a profit.

Often associated with igneous intrusions. Ultramafic rocks Their low silica and gas contents make them very fluid; i.e., they have a low viscosity, or resistance to flow. Ultramafic rocks are given names depending on whether they are intrusive or extrusive.

Peridotite is the name given to intrusive ultramafic rocks, whereas komatiite is the name given to extrusive ultramafic rocks. The Nizhne-Derbinsk mafic-ultramafic complex is located between the Central Asian Orogenic Belt and the Siberian Craton and, is associated with the Ballyk fault.

The largest, spatially related to each other, plutons in the central part of the complex are the Burlakski and Nizhne-Derbinsk.

Rocks in the main units of these plutons are divided into three groups: peridotites (ultramafic. mg kg-1) occurs in an ophiolitic area in Liguria, Italy, in a sample poor in SiO2 and CaO, but rich in Fe2O3 (12%) and MgO (18%); this sample also has the highest Cr ( mg kg-1) and Ni ( mg kg-1) content.

High Co values in soil are very often geogene, related to mafic or ultramafic rocks, but they canFile Size: KB. Invasive Features of Mafic-Ultramafic Rocks at the Zone 3, Zone 2, and Katinniq Ni-Cu-(PGE) Deposits, Raglan Formation, Cape Smith Belt, Nouveau-Québec Martin Lévesque and C.M.

Lesher MERC, Department of Earth Sciences, Laurentian University, Sudbury, Ontario, P3E 6B5, Canada e-mail: [email protected] The Raglan Formation occurs in the early. sequence of ultramafic rocks situated in the Mafic Succession of the SSC.

There are basically two rock types in the PAR 11 borehole: peridotites and pyroxenites. Comparison of the major and trace element geochemistry of the PAR 11 body with the MR 92 data of Coghill () for the SSC reveals that they are similar but less evolved.

Classification of Mafic–Ultramafic Intrusions in Ontario and Implications for Platinum-Group Element Mineralization C. Vaillancourt1, R.A. Sproule 2, C.A. MacDonald1, C.M. Lesher, and L.J.

Hulbert3 1Ontario Geological Survey, Sudbury, Ontario, Canada 2Mineral Exploration Research Centre and Department of Earth Sciences, Laurentian University, Sudbury,File Size: KB. Types of Rocks Sorting Cards-These beautiful cards make learning about types of rocks fun and easy.

This PDF file includes: 6 pictures each in all) for all three rock categories: igneous, metamorphic, and sedimentary A full-page poster explaining These are all igneous rocks, which I’ve been reading about lately. PETROLOGY OF ULTRAMAFIC ROCKS FROM SITE S. Arai,1 Geological Institute, University of Tokyo, Tokyo, Japan and T.

Fujii2, Carnegie Institute, Geophysical Laboratory, Washington, D.C. ABSTRACT Serpentinized peridotites recovered at DSDP Site preserve the original minerals: olivine, orthopyroxene, clinopyroxene, andCited by: VOLCANIC-SEDIMENTARY SUCCESSION.

To supplement the brief summary in the "Site " chapter of the Leg Initial Reports volume (Shipboard Scientific Party, b), a detailed description and local interpretation is given for lithologic Unit 1 together with a summary of lithologic Unit 2.

To aid interpretation of the temporal evolution of Site the lithologies are. Precambrian geology, Northern Swayze Greenstone belt (Ontario Geological Survey report, ISSN ; ) Includes bibliographic references.

ISBN 1. Geology-Ontario-Swayze Region. Geology, Stratigraphic-Precambrian. Greenstone belts-Ontario-Swayze Region. Ontario. Ministry of Northern Development and Mines. Ontario File Size: 4MB. Muraoka, H. (MS), Petrological study on mafic and ultramafic rocks in the Pdf district, Okayama Prefecture (Master thesis).

Hiroshima University, 60 p. Muraoka, H. (), Rodingite formation and CO 2 -regime of the Ca-mobile type serpentinization with special reference to the Ashidachi district, Okayama by: 5.Serpentinized ultramafic clasts recovered from an active mud volcano in the Mariana forearc reveal microstructures, mineral assemblages and compositions that are indicative of a complex polyphase alteration history.

Petrologic phase relations and oxygen isotopes suggest that ultramafic clasts were serpentinized at temperatures below °C.Generally, the ultramafic rocks of the Barru Block have been strongly serpentinised ebook – 90%) and metamorphosed to low temperature (greenschist) or moderately high temperature (amphibolite) facies.

The ultramafic rocks are of spinel lherzolite and harzburgite composition. Podiform chromitite.