| Title | Geology, Barrow River, Melville Peninsula, Nunavut, NTS 46-O and 46-P |
| Download | Downloads |
| |
| Licence | Please note the adoption of the Open Government Licence - Canada
supersedes any previous licences. |
| Author | Corrigan, D ;
Nadeau, L; Brouillette, P; Wodicka, N; Berman, R G; Houlé, M G |
| Source | Geological Survey of Canada, Canadian Geoscience Map 236, 2020, 1 sheet, https://doi.org/10.4095/297366  Open Access |
| Image |  |
| Year | 2020 |
| Publisher | Natural Resources Canada |
| Document | serial |
| Lang. | English |
| Maps | 1 map |
| Map Info. | geological, stratigraphic, structural, 1:150,000 |
| Projection | Universal Transverse Mercator Projection, UTM zone 17 (NAD83) |
| Media | digital; on-line |
| Related | NRCan photo(s) in this
publication |
| File format | readme
|
| File format | pdf; rtf; gdb (ESRI® ArcGIS(TM) v.10.x); shp (ESRI® ArcGIS(TM) v.10.x); xml (ESRI® ArcGIS(TM) v.10.x); xls (Microsoft® Excel®); mxd (ESRI® ArcGIS(TM) v.10.x) |
| Province | Nunavut |
| NTS | 46O; 46P |
| Area | Barrow River; Melville Peninsula |
| Lat/Long WENS | -84.0000 -81.1667 68.0000 67.0000 |
| Subjects | regional geology; structural geology; stratigraphy; economic geology; geochronology; mineralogy; tectonics; Nature and Environment; Science and Technology; bedrock geology; basement geology; lithology;
igneous rocks; volcanic rocks; anorthosites; rhyolites; lava flows; intrusive rocks; granites; aplites; pegmatites; gabbros; granodiorites; leucogabbros; diorites; monzo-granites; metamorphic rocks; metavolcanic rocks; gneisses; metasedimentary
rocks; metagreywackes; metapelites; marbles; metapsammites; quartzites; migmatites; granulites; amphibolites; metagabbros; sedimentary rocks; dolomites; limestones; pelites; marls; iron formations; structural features; faults; faults, normal; faults,
slip; faults, thrust; folds; folds, overturned; antiforms; synforms; bedding planes; tectonic history; folding; faulting; rifting; metamorphism; emplacement; magmatism; intrusions; dykes; crustal uplift; mineral occurrences; lead; zinc; silver; gold;
nickel; copper; uranium; molybdenum; tungsten; arsenic; textures; foliation; gneissosity; lineations; crenulations; radiometric dating; uranium lead dating; zircon dates; Archean; Neoproterozoic; Paleoproterozoic; Penrhyn Group; Franklin Dykes;
Mackenzie Dykes; Longstaff Bluff Formation; Astarte River Formation; Flint Lake Formation; Dewar Lakes Formation; Piling Group; geological contacts; Phanerozoic; Paleozoic; Silurian; Ordovician; Proterozoic; Precambrian |
| Illustrations | location maps; index maps; photographs; tables; diagrams |
| Program | GEM2: Geo-mapping for Energy and Minerals Hudson/Ungava Project Management |
| Released | 2020 07 17 |
| Abstract | The Barrow River bedrock geology map is the product of targeted mapping carried out during the summer of 2010, enhanced by radiometric age-dating as well as high-resolution aeromagnetic and radiometric
surveys completed over previously published geological maps of the Paleoproterozoic Penrhyn Group and its Archean basement in southeastern Melville Peninsula, Nunavut. The high-resolution aeromagnetic survey was utilized to project lithological
boundaries beneath Quaternary cover. The map shows complex basement-cover relationships characterized by multiple generations of thrusting and folding in a thick-skinned tectonic regime, followed by dextral transpression along the southern edge of
the Penrhyn Group. A late-Archean tectonometamorphic event is recorded by ca. 2.55 Ga monazite in basement gneiss. Onset of rifting prior to deposition of the Penrhyn Group may be indicated by the emplacement of a bimodal suite of granite and
leucogabbro-anorthosite at ca. 2.02 Ga. Penrhyn Group units are tentatively correlated with the Piling Group on Baffin Island. |
| Summary | (Plain Language Summary, not published)
This map is a synthesis of recent field observations, radiometric age-dating, high-resolution aeromagnetic surveys and previously published geological
maps of the Paleoproterozoic-age Penrhyn Group and its Archean basement in southeastern Melville Peninsula, Nunavut. This new work stems from the Melville Peninsula Multiple Metal project initiated in 2009 under the auspices of the Geo-Mapping for
Energy and Minerals (GEM-1) program. Targeted field work was initiated in 2009, followed by more systematic coverage by ground traverses in the summer 2010. The map shows complex basement-cover relationships characterized by multiple generations of
thrusting and folding in a thick-skinned tectonic regime, followed by dextral transpression. A late-Archean tectonometamorphic event is recorded by ca. 2.55 Ga monazite in basement gneiss. Onset of rifting prior to deposition of the Penrhyn Group may
be indicated by the emplacement of a bimodal suite of granite and leucogabbro-anorthosite at ca. 2.02 Ga. Penrhyn Group units are tentatively correlated with the Piling Group on Baffin Island. |
| GEOSCAN ID | 297366 |
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