geology labrador trough
geology labrador trough
Regional metamorphism of Proterozoic iron-formation ,
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central and southern Labrador Trough afford an ex- semblages in the area south of the biotite isograd cellent opportunity to study the changes in mineral (Fig l) have been made by Mueller (1960) in the assemblages as a function of changing metamorphic Bloom ,...

Labrador Trough - Wikipedia
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Labrador Trough The sedimentary rocks and volcanics of the Labrador Trough were intensely deformed and subjected to high grade metamorphism along with the Churchill terrain during the Trans-Hudson orogeny It is a northeast extension of the Circum-Superior Belt and is terminated to the south by the Grenville Front Tectonic Zone...

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LABRADOR TROUGH: 23 19 - BILLION YEARS OF HISTORY Toby Rivers and Richard Wardle Mi neral Development Division Department of Mines and Energy, St John Is INTRODUCTION The Labrador Trough in western Labrador and Quebec, now represents the eroded remains of an ancient mountain chain that once extended from Ungava Bay almost as far south as the Gulf ....

An Outline of the Geology of Labrador | Greene ,
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Abstract Exploration in Labrador has been concentrated in two areas: the Labrador Trough, in the western part of Churchill Province, and the "Central Mineral Belt" of Labrador, which extends eastward across the southern parts of Churchill and Nain Provinc Mining in the Labrador portion of the Trough accounts for about half....

THE GEOLOGICAL SETTING OF THE JULIENNE LAKE IRON-ORE ,
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The Labrador Trough largely represents a fore- land basin and comprises three sedimentary cycles, which are together referred to as the Kaniapiskau Supergroup (Zajac, 1974; Wardle and Bailey, 1981; Le Gallais and Lavoie, 1982)...

geology labrador trough - bsenseit
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geology labrador trough pubsusgsgov geology, total magnetic field data, and output-processed electromagnetic data for part of the labrador trough, quebec, canada ,...

Labrador Trough - Wikipedia
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Geology of Newfoundland and Labrador - Wikipedia
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Natural resource geology of Labrador Massive iron deposits are found in the Labrador Trough along with copper, uranium and molybdenum Iron forms in chert from the Ungava Bay to the Grenville Front, over a span of 700 miles, while copper and nickel minerals such as pyrite , pyrrhotite , sphalerite and galena form dispersed deposits or massive bodies in Kaniapiskau Supergroup rocks...

Labrador Iron Mines Holdings Limited :: Geology
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Geology The Labrador Trough extends for more than 1,000km along the eastern margin of the Superior craton from Ungava Bay to Lake Pletipi, Quebec The belt is about 100km wide in its central part and narrows considerably to the north and south...

Iron Deposits of the Labrador Trough | Exploration and ,
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The iron deposits occur within iron formation in sediments in the extensive Proterozoic geosyn-cline called the Labrador Trough Several facies of iron formation within the Sokoman Formation reflect variations in chemical composition and depositional conditions...