Geology, Circle Lake, Baffin Island, Nunavut / [by] M. Sanborn-Barrie and M. Young.: M183-1/5-2011E-PDF
"Cumberland Peninsula, eastern Baffin Island, is an under-explored, frontier region with significant diamond, base- and precious-metal potential. Archean (2.97-2.77 Ga) foliated to gneissic tonalitic plutonic rocks with enclaves of >2.77 Ga semipelite, ca. 2.88 Ga gabbro and rare ca. 2.92 Ga metavolcanic rocks form a structural basement, exposed in the south and north. Metasedimentary cover rocks of the Paleoproterozoic Hoare Bay group, exposed from the central to the northeast part of the peninsula, are in tectonic contact with the basement gneisses. The cover sequence includes widespread semipelite-psammite with minor quartzite, marble, silicate- and oxide-faciesiron-formation, chert and graphitic-pyritiferous shale, and two geochemically-distinct strands of ultramafic-mafic metavolcanic rocks of pyroclastic origin. Basement and cover rocks are cut by 1.9-1.88 Ga charnockite, biotite-garnet granodiorite and lesser quartz diorite of the Qikiqtarjuaq plutonic suite. Major structures and medium to high-grade metamorphic assemblages are attributed to polyphase tectonometamorphism between ca. 1.90-1.84 Ga"--Abstract.
Permanent link to this Catalogue record:
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| Department/Agency | Canada. Natural Resources Canada, issuing body. Geological Survey of Canada, issuing body. |
|---|---|
| Title | Geology, Circle Lake, Baffin Island, Nunavut / [by] M. Sanborn-Barrie and M. Young. |
| Series title | Canadian geoscience map ; No. 5 |
| Publication type | Series - View Master Record |
| Language | [English] |
| Format | Electronic |
| Electronic document | |
| Note(s) | Includes a legend. Includes bibliographical references. Includes abstract in French. |
| Publishing information | Ottawa : Natural Resources Canada, c2013. |
| Author / Contributor | Sanborn-Barrie, Mary, 1960- author. Young, M., contributor. |
| Description | 1 map : col. |
| ISBN | 978-1-100-19051-8 |
| Catalogue number |
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| Departmental catalogue number | 288929 |
| Edition | Preliminary version |
| Cartographic data | Scale 1:100,000 |
| Subject terms | Geological maps Geomorphology Surficial geology |
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