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Showing 1 - 3 results of 3 for search '"Pre-Cambrian"', query time: 0.08s Refine Results
  1. 1
    “..., Ottawa. The significant deposits occur as steeply dipping tabular, unzoned pegmatite dikes of Pre...”
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    Article in Journal/Newspaper
  2. 2
    by Manifold, Albert Hedley
    Published 1947
    “.... The shear is contained in Pre-cambrian volcanic rocks all of which have been more or less regionally...”
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    Thesis
  3. 3
    “... to Lower Devonian strata were derived from a mixture of locally erupted, juvenile volcanics and pre...”
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    Article in Journal/Newspaper
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