Lithostratigraphic Assembly and Structural Setting of Gold Mineralization in the Eastern Rice Lake Greenstone Belt, Manitoba PDF Download
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Author:
Publisher:
ISBN:
Category : Geology
Languages : en
Pages : 120
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Author:
Publisher:
ISBN:
Category : Geology
Languages : en
Pages : 120
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Author: T. Torvela
Publisher: Geological Society of London Special Publications
ISBN: 1786205491
Category : Science
Languages : en
Pages : 434
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Book Description
Gold occurs in many settings, but the dynamic nature of Earth’s crust means overlapping and overprinting deposit styles are common. Characterization of mineralization from an early stage becomes important, particularly where the mineralization is complex, in order to maximize exploration and project development success and mining productivity. Various techniques are used at different stages of a project to characterize gold deposits. This Special Publication offers a cross-section of some specific techniques used to investigate a variety of gold deposit types. The papers highlight both the breadth of the available techniques and their utility in deposit characterization, but also the many significant remaining questions and problems related to the exploration and research of gold deposits. Several papers include suggestions of avenues for fruitful further research, including a paper discussing a new approach to classifying orogenic gold deposits, and a paper describing archaeological applications of natural gold analyses.
Author: C. Sasseville
Publisher: Natural Resources Canada
ISBN: 0660180332
Category :
Languages : en
Pages : 11
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Book Description
Presents results of 1999 field studies focusing on the structure & stratigraphy within the Wallace Lake greenstone belt of east central Manitoba. The stratigraphic results involve redefinition of some of the sequences previously described in the belt and the introduction of new stratigraphic nomenclature. The nature of the contact between stratigraphic assemblages, and the internal stratigraphy of these assemblages, is then presented. This is followed by a discussion of the stratigraphic position of various komatiitic units found in the belt. The final sections describe the geochemistry of the volcanic rocks and the structural history of the greenstone belt.
Author: Xiaohui Zhou
Publisher:
ISBN:
Category : Geological time
Languages : en
Pages : 190
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Book Description
The Central Manitoba mine trend is one of the most important lode gold camps in the Rice Lake greenstone-granitoid belt of the western Uchi Subprovince within the western Superior Province, Manitoba, Canada. Neoarchean host rocks consist of a south-facing volcano-sedimentary succession (2.75-2.73 Ga) intruded by voluminous gabbroic sills and tonalitic-granodioritic plutons (2.73-2.72 Ga), as well as late aplite dikes (2.73-2.72 Ga) and quartz-feldspar porphyry dikes (2.73-2.71 Ga). Five generations of deformation structures have been recognized through detailed geological mapping. The entire succession was folded during early deformation prior to rare late aplite dike emplacement. All fault-fill veins and extension veins cut all lithologic units, and are structurally governed by late conjugate shear zones. Main gold mineralization occurs within fault-fill veins hosted by west-trending steeply-dipping dextral brittle-ductile and ductile shear zones, which occur along or across contacts of metabasalt, metagreywacke and metagabbro or entirely within metagabbro. Microstructural and paragenetic analyses on main gold-bearing veins have revealed that gold is intimately associated with quartz, pyrrhotite and tellurobismuthite. Main gold introduction is interpreted to have taken place contemporaneously with pyrrhotite and tellurobismuthite deposition early during dextral shearing. The Ogama-Rockland gold deposit consists of shear zone-associated quartz veins hosted by the Ross River pluton, a ca. 2728-2724 Ma tonalitic-granodioritic intrusion in supracrustal rocks (
Author: Manitoba. Geological Survey
Publisher:
ISBN:
Category : Geology
Languages : en
Pages : 224
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Author: Geological Survey of Canada
Publisher:
ISBN:
Category : Geology
Languages : en
Pages : 308
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Author: Manitoba. Geological Services Branch
Publisher:
ISBN:
Category : Geology
Languages : en
Pages : 758
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Author: Eric C. Syme
Publisher:
ISBN:
Category : Geology
Languages : en
Pages : 142
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Author: R. K. Bezys
Publisher:
ISBN:
Category : Geology
Languages : en
Pages : 102
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Author:
Publisher:
ISBN:
Category : Geology
Languages : en
Pages : 48
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