[Geology, Irvine Inlet (south), Baffin Island, Nunavut]: M183-1/262-2016S-PDF

"This map summarizes the field observations for the Irvine Inlet (South) map area following eight weeks of regional and targeted bedrock mapping on western Hall Peninsula. The 2015 field campaign completes a two-decade mission to update map coverage for the whole of Baffin Island south of latitude 70°N. The bedrock is dominated by a Paleoproterozoic metaplutonic suite, ranging in composition from gabbro to syenogranite, with crosscutting relations indicating a progression from mafic to silicic magmatism. Prevailing upper amphibolite to lower granulitefacies metamorphic conditions overlap the stability limits of magnetite and orthopyroxene, which is consistent with equilibrium phase diagrams and regional aeromagnetic data. Metasedimentary rocks, including quartzite, pelite, marble, and metagreywacke, are present as screens and enclaves between and within plutonic bodies. An examination of the ‘ghost’ stratigraphy suggests that the metasedimentary rocks can be correlated with the middle Paleoproterozoic Lake Harbour Group in the south and Piling Group in the north. Two basaltic dyke swarms and shallowly dipping Ordovician limestone respectively crosscut and overly the Paleoproterozoic units"--p. [2].

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Department/Agency Natural Resources Canada. Geological Survey of Canada.
Title [Geology, Irvine Inlet (south), Baffin Island, Nunavut]
Series Title Canadian geoscience map ;
Publication Type Monograph
Language [Inuktitut]
Other Language Editions [English]
Format Electronic
Electronic Document

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Note Issued also in English. Accompanying Map information document.
Date 2016.
Number of Pages 1 map +
ISBN 978-0-660-05099-7
Catalogue Number
  • M183-1/262-2016S-PDF
Edition Prelim.
Map Data Scale 1:100 000 ;
Subject Terms Geological maps, Sedimentary rocks