| Title | Bedrock geology, Rowley River-Isortoq River, Baffin Island, Nunavut, NTS 37-F east |
| Download | Downloads |
| |
| Licence | Please note the adoption of the Open Government Licence - Canada
supersedes any previous licences. |
| Author | Skipton, D R; Saumur, B M ; St-Onge, M R; Bros, E R; Acosta-Góngora, P; Kelly, C J; O'Brien, M E; Weller, O M; Johnston, S T |
| Source | Geological Survey of Canada, Canadian Geoscience Map 406, 2020, 1 sheet, https://doi.org/10.4095/315401  Open Access |
| Image |  |
| Year | 2020 |
| Publisher | Natural Resources Canada |
| Document | serial |
| Lang. | English |
| Maps | 1 map |
| Map Info. | geological, regional geology, 1:100,000 |
| Projection | Universal Transverse Mercator Projection, UTM zone 18 (NAD83) |
| Media | on-line; digital |
| Related | NRCan photo(s) in this
publication |
| Related | For all publications in this group, see the following publications |
| 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); mxd (ESRI® ArcGIS(TM) v.10.x); xls (Microsoft® Excel®); tif |
| Province | Nunavut |
| NTS | 37F/01; 37F/02; 37F/07; 37F/08; 37F/09; 37F/10; 37F/15; 37F/16 |
| Area | Rowley River; Isortoq River; Baffin Island |
| Lat/Long WENS | -78.0000 -76.0000 71.0000 70.0000 |
| Subjects | regional geology; stratigraphy; structural geology; Nature and Environment; Science and Technology; Archean; volcanic-sedimentary belts; bedrock geology; lithology; sedimentary rocks; limestones;
dolostones; conglomerates; sandstones; siltstones; shales; dolomites; evaporites; iron formations; psammites; pelites; breccias; igneous rocks; intrusive rocks; diabases; gabbros; monzo-granites; granodiorites; syenites; leucogranites; pyroxenites;
leucogabbros; clinopyroxenites; websterites; anorthosites; diorites; felsic intrusive rocks; volcanic rocks; komatiites; metamorphic rocks; quartzites; semipelites; marbles; metasedimentary rocks; gneisses; mafic rocks; structural features; faults;
faults, normal; faults, strike-slip; folds; fractures; grabens; lineaments; bedding planes; intrusions; diabase dykes; sills; veins; sedimentary structures; textures; foliation; gneissosity; lineations; glacial features; glacial striations; ice flow;
Neoproterozoic; Mesoproterozoic; Paleoproterozoic; Brodeur Group; Foster Bay Formation; Frobisher Bay Formation; Amadjuak Formation; Ship Point Formation; Admiralty Group; Turner Cliffs Formation; Gallery Formation; Franklin Dykes; Bylot Supergroup;
Uluksan Group; Iqqittuq Formation; Arctic Bay Formation; Eqalulik Group; Adams Sound Formation; Piling Group; Flint Lake Formation; Dewar Lakes Formation; Mary River Group; Rae Craton; ice-flow directions; station locations; Phanerozoic; Paleozoic;
Ordovician; Cambrian; Precambrian; Proterozoic |
| Illustrations | location maps; index maps; photographs; geoscientific sketch maps |
| Program | GEM2: Geo-mapping for Energy and Minerals Mary River North Baffin |
| Program | Polar Continental Shelf Program
|
| Released | 2020 06 03 |
| Abstract | This map presents the field observations and initial geological interpretations for the Rowley River-Isortoq River area (NTS 37-F east) Baffin Island, Nunavut. The regional bedrock geology depicted on
CGM maps 402 to 406 comprises Archean tonalitic to monzogranitic gneiss that includes mafic to intermediate components, and relatively homogeneous monzogranite-granodiorite intrusions. The Archean Mary River Group forms discontinuous
volcano-sedimentary belts, consisting of mafic volcanic rocks interlayered with siliciclastic strata, banded iron-formation, and felsic to intermediate and ultramafic volcanic units. The supracrustal rocks are intruded by monzogranite-granodiorite
plutons. Pelitic to psammitic units, marble, and calc-silicate of the middle Paleoproterozoic Piling Group unconformably overlie the Archean units. Archean units are also unconformably overlain by Mesoproterozoic clastic and carbonate platform
sequences of the Bylot Supergroup. These strata were deposited within a graben that forms part of the larger Borden Basin. Paleozoic (Cambrian to Ordovician) strata lie unconformably upon Archean and Paleoproterozoic felsic plutonic rocks in the
western portion of northern Baffin Island. |
| Summary | (Plain Language Summary, not published)
This map presents the field observations and initial geological interpretations for the Rowley River-Isortoq River area (NTS 37F east), Baffin Island,
Nunavut. The bedrock geology comprises Archean felsic gneiss that includes mafic to intermediate components, and relatively homogeneous monzogranite-granodiorite intrusions. The Archean Mary River Group forms discontinuous volcano-sedimentary belts,
consisting of mafic volcanic rocks interlayered with siliciclastic strata, banded iron-formation, and felsic to intermediate and ultramafic volcanic units. The supracrustal rocks are intruded by monzogranite-granodiorite plutons. Pelitic to psammitic
units, marble and calcsilicate of the middle Paleoproterozoic Piling Group unconformably overlie the Archean units. Archean units are also unconformably overlain by Mesoproterozoic clastic and carbonate platform sequences of the Bylot Supergroup.
Paleozoic (Cambrian to Ordovician) strata lie unconformably upon Archean and Paleoproterozoic felsic plutonic rocks in the western portion of northern Baffin Island. |
| GEOSCAN ID | 315401 |
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