Till and bedrock Cu-Pb-Zn geochemistry in northern Nova Scotia and its metallogenic implications

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Authors:Stea, R. R.; Day, T. E.; Ryan, R. J.
Author Affiliations:Primary:
N.S. Dep. Mines. and Energy, Halifax, NS, Canada
Day and Assoc., Canada
Volume Title:Prospecting in areas of glaciated terrain 1986
Volume Authors:Phillips, W. J., chairperson
Source:Prospecting in Areas of Glaciated Terrain, Vol.7, p.241-260; Seventh international prospecting in areas of glaciated terrain symposium, Kuopio, Finland, Sept. 1-2, 1986, chaired by W. J. Phillips. Publisher: Institution of Mining and Metallurgy, London, United Kingdom. ISSN: 0141-3376. ISBN: 0-900-488-913
Publication Date:1986
Note:In English. 43 refs.; illus. incl. 6 tables, geol. sketch map
Summary:Two surface till units were identified during a Quaternary mapping programme in northern mainland Nova Scotia. These texturally and lithologically distinct till units have unique chemical signatures in the clay fraction. Trace-element concentrations vary sympathetically with pebble percentages in the total till data-set of northern mainland Nova Scotia. The concomitant response of Cu, Fe and U levels with red sedimentary pebble percentages and Pb and Zn to grey sedimentary pebble percentages can be explained by the relationships of those metals with known mineral occurrences distinctive to red and grey beds in the region. A stony till sheet, found mainly on the Cobequid Highlands, is characterized by an association of Mg-Ni-Co-Mn-Cu which suggests a source rich in ferromagnesian minerals. Low Cu, Pb and Zn levels in till occur largely within the Upper Carboniferous Pictou group. [J.M.H.]
Subjects:Clastic sediments; Copper ores; Economic geology; Geochemical methods; Glacial transport; Glaciated terrains; Lead-zinc deposits; Metal ores; Mineral exploration; Provenance; Sedimentation; Sediments; Till; Transport; Canada; Eastern Canada; Maritime Provinces; Nova Scotia; Eatonville Till; Northern Nova Scotia
Abstract Numbers:87M/2914
Record ID:1987022002
Copyright Information:GeoRef, Copyright 2019 American Geosciences Institute. Reference includes data from Mineralogical Abstracts, United Kingdom, Twickenham, United Kingdom
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