Surficial geology component of the 2012 geoscience project

68°0'W 67°0'W 66°0'W 65°0'W 64°0'W Presented at Yellowknife forum, November 2012 65°0'N

Tawsig Fiord Permafrost core drilling in the central part of the 1 2 3 4 Chidliak Bay peninsula, covered by a non-eroded, rather deep Tremblay, T. , Allard M. , Budkewitsch, P. , Gosse, J. , Leblanc, (> 3 m in some places) regolith. A.M.5, Peyton, P.6, Leblanc-Dumas, J.2, and Mate, D.1 Ptarmigan Fiord

Littlecote Channel Neptune Bay (1) - Geoscience Office, Iqaluit, Nunavut 64°30'N Finger Land

(2) Centre d’étude Nordique, Université Laval, Québec, Québec 64°30'N * (3) Aboriginal Affairs and Northern Development, Iqaluit, Nunavut * ** ** Leybourne Islands (4) Department of Earth Sciences, Dalhousie University, Halifax, Nova Scotia * ** (5) Geological Survey of Canada, Ottawa, Ontario * * (6) Environmental Technology Program, Nunavut Arctic College, Iqaluit, Nunavut McKeand River Hall Peninsula [email protected] Okalik Bay* 64°0'N * * * * * 64°0'N * * * Lemieux Islands Permafrost core extracted from the regolith. * * * Abstract * * * * * * * * * * * * * The surficial geology component of the Hall Peninsula Geoscience project (2011-2014) conducted during field * * * Beekman Peninsula * Strait Davis season 2012 will be presented, both in summary of the future work and as a preliminary overview of the Quater- * * * * nary geology of the area. Emphasis is placed on 1:100 000 surficial geology mapping, glacio-dynamical setting * * Brevoort Island * * * Allen Becher Peninsula * * * Island * * 63°30'N and ice flow history of the area. Permafrost studies will be undertaken to better understand the nature of frozen Ward Inlet * * Robinson ground in various settings, around the Iqaluit airport and on the Hall Peninsula plateau. Satellites images inter- * Sound 63°30'N ** pretation using Landsat, Rapid Eye, Worldview and Radarsat images and data will enhance the mapping meth- * * * Cornelius* * Grinnell odology Uplift studies will help understand the chronology of relief formation and erosion. Traditional place- * * * * * *Bay names geological study will aim at describing how the geological landscape is linked with traditional activities Waddell Bay*Royer Cove * * * * and landmarks. * * * * Newton Fiord Glacio-fluvial channel eroding the regolith cover * * * * Hamlen Bay * down to solid bedrock. the presence of regoliths, * 63°0'N felsenmeers and feebly eroded bedrock outcrops Gold Cove *

63°0'N suggest that cold-based glaciers have covered the Cyrus Field Bay * central part of the region during the Late Pleisto- DEM (m) cene. 1182 Meta Incognita Peninsula Countess of Warwick Sound 600 Blunt 300 Peninsula 150 0 Till geochemistry sample Loks Land* 62°30'N 62°30'N * Till heavy mineral sample

Moraine 012.5 25 50 75 100 km Carbonate till limit

Marine sediments on the littoral of Frobisher Bay. Glacial sediments , moraines and silt-laden glacial 68°0'W 67°0'W 66°0'W 65°0'W meltwater river, eastern Hall Peninsula. Location map displaying till samples, principal moraines, carbonate till limit, and DEM from 1:50 000 NTS topographic contours. RapidEye 5m resolution satellite image (red, blue and infrared as green); see dotted box close to McK- WBWB eand River in location map. The main feature is the Frobisher Bay moraine (green on the image), dis- playing kettle lakes and ice-thrust moraine ridges. Tor on felsenmeer surface (local cold-based ice Frobisher Bay moraine in linear erosion dynamical setting) IBIB CBCB at the outer edge of Lemieux Island. Kettle lake IBIB L

References Inuit Heritage Trust. Warm-based glacier valley and cold-based plateau 2009: Taqulijjuaq inuktitut place-names map. Inuit Heritage Trust publication, Iqaluit, Nunavut, 1 map. in linear erosion dynamical setting, Blunts Peninsula. This bay is named Isingujjuaq on the traditionnal Johnson, C., Ross, M. and Tremblay, T. IB/LIB/L place-names map from Inuit Heritage Trust (2009), and 2012: Glacial geomorphology of north-central Hall Peninsula, Southern ; . Geological Survey of Canada, DEM (m) WWBB hosted a cabin where whalers stayed a long time ago. Open File , in press. 1182

600 2 1 2 Leblanc-Dumas, J., Allard, M. and Tremblay, T. 300 1 L 150 WBWB 2012: Quaternary geology and permafrost characteristics in central Hall peninsula; in Activity Report 2012, 0 Canada-Nunavut Geoscience Office.

GEOMORPHOLOGY Stravers, J. A.,Miller, G. H. and Kaufman, D. S. 2 1992: Late glacial ice margins and deglacial chronology for southeastern Baffin Island and ,

2 Striations directions (number 1 indicate relative chronology) 1 eastern Canadian Arctic. Can. J. Earth Sci. , 29, 1000-1017. Moraine Tremblay, T., Leblanc-Dumas, J., Allard, M., Gosse, J., Creason, G., Peyton, P. and Budkewitsch, P. Carbonate till limit Juxtaglacial gravelly glaciofluvial deposit, Hall Peninsula plateau. 2012: Surficial geology in the Hall Peninsula area, summary of field season 2012; in Activity Report 2012, ICE FLOW CHRONOLOGY Canada-Nunavut Geoscience Office. Phase L 4 Deglacial, toward land-based margin The Canada-Nunavut Geoscience Office Summary 2012 and this map are available at cngo.ca. Jonhson et al. (2012) will be shortly available at Geoscan website 3 Deglacial, Gold Cove readvance (http://geoscan.ess.nrcan.gc.ca/starweb/geoscan/servlet.starweb?path=geoscan/geoscan_f.web) Late glacial, Affluent ice in smaller glacial valleys 2 Late glacial, ice flow in U-shaped valleys Aknowledgements

LGM? ice stream in Frobisher Bay and Cumberland Sound This project is financed and organized by the Canada Nunavut Geosciences Office (CNGO) based in Iqaluit, with support 1 LGM? presumed, no record from striation or macroforms from the Center for Northern Studies (CEN) and GSC-Ottawa. Emmanuel L’Hérault (CEN) Wendy Sladen and Greg Olden- berger are thanked for their technical contribution to the drilling and geophysical field operations. Universal Helicopters LGM? Main recorded ice flow direction pilots (Jim Abbott, Stig Sande, John Hines and Ken Cashin) provided safe field transport during summer 2011 and 2012. Noah Maniapik and Manasie Qillaq provided valuable camp managing, field assistance and bear-monitoring. Preparation and interpretation of the surficial mapping, glacial history and geomorphology was enhanced by discussions with Roger Preliminary ice flow and glacio-dynamical setting map. Paulen, Martin Ross, Cassia Johnson, David Mate and Christian Knudsen. Surficial mapping is prepared on 3D technology with the assistance of Celine Gilbert (CNGO) and Marco Boutin (INRS).