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Winnipeg Lake ! R 11 E 98° R 4 W R 3 W R 2 W R 1 W R 1 E R 2 E R 3 E R 4 E R 5 E R 6 E R 7 E R 8 E R 9 E R 10 E 96° 575 000 600 000 625 000 650 000 675 000 700 000 0 0 0 51° 0 51° 5 ! SURFICIAL GEOLOGY COMPILATION MAP SERIES 6 ! 5 Birch Broad Valley Morweena Riverton Tp 23 ! Sand Lake Otter y The Surficial Geology Compilation Map Series (SGCMS) addresses an increasing demand for 0 0 consistent surficial geology information for applications such as groundwater protection, 0 R iver 0 Tp 23 17 5 industrial mineral management, protected lands, basic research, mineral exploration, YZ 6 S Lake 5 an engineering, and environmental assessment. The SGCMS will provide province-wide coverage dy at scales of 1:500 000, 1:250 000 and a final compilation at 1:1 000 000. I c r e e The unit polygons were digitized from paper maps originally published by the Geological la iv n R Survey of Canada and Manitoba Geological Survey (MGS). In several areas, digital polygons d ic derived from soils mapping were used to fill gaps in the geological mapping. The 1:250 000 Tp 22 Arborg ! Hnausa YZ68 ! scale maps provide a bibliography for the original geological mapping. Poplarfield LAKE YZ68 ! Edge-matching of adjoining 1:250 000 scale map sheets is based on data from the Shuttle Tp 22 Radar Topography Mission Digital Elevation Model (SRTM DEM1) as interpreted by the MGS. Oak Other polygon inconsistencies were modified in a similar manner. Geology (colour) is draped ! YZ68 YZ68 over a shaded topographic relief map (grey tones) derived from the SRTM DEM. Lake Silver B ! la 1 ck United States Geological Survey 2002: Shuttle radar topography mission, digital elevation model, Manitoba; United States Geological Survey, URL <ftp://edcsgs9.cr.usgs.gov/pub/data/srtm/>, portions of files N48W88W.hgt.zip Tp 21 through N60W102.hgt.zip, 1.5 Mb (variable), 90 m cell, zipped hgt format [Mar 2003]. Rembrandt Arnes ! ! LEGEND Tp 21 Deerhorn Chatfield 0 ! 0 ! O'Han Quaternary 0 ly YZ7 O'Hanly 5 8 2 YZ 6 5 R Elk iver ORGANIC DEPOSITS: peat, muck; <1–5 m thick; very low Fish Little Black River ! O relief wetland deposits; accumulated in fen, bog, swamp, and 0 Island 0 Lake 0 marsh settings 5 2 6 Tp 20 Meleb 5 YZ6 ! SHORELINE SEDIMENTS: sand and gravel; 1–2 m thick; Lm beaches; formed by waves at the margins of modern lakes Tp 20 Victoria Beach Lundar ! ! COLLUVIUM: landslide debris, eroded slopes, sheet flood Narcisse ! C deposits associated with steep slopes YZ17 YZ59 WINNIPEG EOLIAN: sand and minor silt; dunes, blowouts and undulating Tp 19 Fraserwood E plains; generally overlies deltaic sediments, coarse lacustrine ! Gimli ! sediments, or glaciofluvial deposits YZ11 Tp 19 Fort Alexander Bélair ! ALLUVIAL SEDIMENTS: sand and gravel, sand, silt, clay, ! A organic detritus; 1–20 m thick; channel and overbank Siglavik ! sediments; reworked by existing rivers and deposited primarily Winn as bars Malonton ipeg ! Pine Falls Powerview ! ! MARGINAL GLACIOLACUSTRINE SEDIMENTS: sand and 0 0 Grand Beach Ls Tp 18 0 gravel; 1–20 m thick; beach ridges, spits, bars, littoral sand and ! 0 0 Sandy Hook gravel; formed by waves at the margin of glacial Lake Agassiz 6 ! Grand Marais St-Georges 5 ! ! YZ12 Tp 18 0 0 OFFSHORE GLACIOLACUSTRINE SEDIMENTS: clay, silt, minor Silver Falls 0 YZ9 ! Oak Poin 0 t 0 Lc sand; 1–20 m thick; very low relief massive and laminated deposits; 6 ! Inwood Komarno R YZ17 ! ! 5 deposited from suspension in offshore, deep water of glacial Lake YZ8 Winnipeg Beach i ! v YZ7 e Agassiz; commonly scoured and homogenized by icebergs North r Norris White Mud Falls DISTAL GLACIOFLUVIAL SEDIMENTS: fine sand, minor gravel, ! Tp 17 YZ6 Shoal Gs thin silt and clay interbeds; 1–75 m thick; subaqueous outwash fans; ! Dunnottar Great Falls deposited in glacial Lake Agassiz by meltwater turbidity currents; Lake ! Beaconia commonly reshaped by wave erosion and reworked by wind Lake ! Tp 17 Stead ! PROXIMAL GLACIOFLUVIAL SEDIMENTS: sand and gravel; St. Laurent G 1–20 m thick; complex deposits, belts with single or multiple esker ! a ridges and kames, as well as thin, low-relief deposits; deposited in b o 11 contact with glacial ice by meltwater t YZ i n East Teulon a ! YZ17 Tp 16 M Scanterbury TILL: diamicton; 1–75 m thick; low-relief, commonly streamlined deposits; subglacial ! Thalberg L e ! a k c deposits; largely derived from shale above the Manitoba Escarpment, carbonate rocks Shoal a Netley d West ! u in the central lowlands, and crystalline rocks in areas of Precambrian terrane; L Tp 16 B o thicker sequences consist of multiple units of varying texture; commonly scoured by icebergs; n Lake n covered discontinuously by thin veneers (<1 m) of glaciolacustrine and glaciofluvial sediments e 0 0 Shoal t 0 5 7 5 Gunton 5 Lake ! Lake Francis Lake Petersfield ! ! 0 Calcareous clay diamicton, predominantly derived from Mesozoic Franc 0 is 0 Tm shale 5 Tp 15 Brightstone 7 5 ! 5 YZ7 Libau Calcareous silt diamicton, predominantly derived from Paleozoic St. Ambroise ! Tp 15 YZ6 YZ8 YZ12 Tc ! Balmoral Lac du Bonnet dolomite and limestone ! ! YZ9 Clandeboye ! B r Non-calcareous sand diamicton, predominantly derived from o k Tp e Pre-cambrian crystalline rock n h e a Woodlands r ! Oak d St. Marks e Tp !14 v Hammock i Pre-Quaternary R Argyle Ladywood ! Marsh ! Tp 14 Milner Ridge ! ROCK: > 75% bedrock outcrop; Cretaceous shales above the R Manitoba Escarpment, Paleozoic carbonate-dominated rocks in YZ59 areas west and south of Lake Winnipeg, exposed typically as Selkirk glacially striated, low-relief surfaces; in Precambrian terrane, generally !( East Selkirk Stonewall ! unweathered intrusive, metasedimentary, and metavolcanic rocks Warren ! 67 ! YZ YZ11 having a glacially scoured irregular surface with high local relief YZ67 YZ9 Tp 13 Seven Sisters Falls 0 ! 0 0 Uncoloured legend blocks indicate units that do not appear on this map. Little Britain 0 ! 5 To aid the reader a shadow effect has been added to exaggerate the topographic relief. 5 5 Tp 13 Stony Mountain ! Lockport Tyndall River Hills ! ! Kirkness ! ! 44 0 Published by: Manitoba Industry, Economic Development and Mines Gonor YZ 0 0 Marquette ! 0 Manitoba Geological Survey, 2004 ! Grosse Isle Seddons Corner Beausejour 5 Poplar Point YZ6 ! ! ! 44 5 ! YZ Narol 5 8 ! 12 St. Ouens Compiled by: G.L.D. Matile and G.R. Keller ine YZ YZ ! 26 bo R YZ ini d iv ss e e Modified from: River A R r e Meadows Burt, A.K. 2004. Surficial geology, Bélair, Manitoba; Geological Survey of Canada; Manitoba ! YZ7 Molson in 26R Tp 12 o YZ ! iv Industry, Economic Development and Mines, Manitoba Geological Survey, Geoscientific ib Tp 12 e r in s map 2003-2, 1 colour map. Scale 1:100 000. [joint GSC-MGS map] s A Rivercrest 50° ! 50° 7 ! 11 Burt, A.K. 2004. Surficial geology, Beausejour, Manitoba; Geological Survey of Canada; Manitoba Rosser YZ 8 Cloverleaf YZ ! 6 101 YZ East St. Paul ! 575 000 600 000 YZ 625 000 =] 650 W00e0st Pine Ridge 675 000 700 000 Industry, Economic Development and Mines, Manitoba Geological Survey, Geoscientific map YZ9 ! ! 98° ! YZ59 96° 2003-5, 1 colour map. Scale 1:100 000. [joint GSC-MGS map] R 4 W R 3 W R 2 W R 1 W R 1 E R 2 E R 3 E ! R 4 E R 5 E R 6 E R 7 E R 8 E R 9 E R 10 E R 11 E Middlechurch Hazelridge Scale 1:250 000 ! ! Grant, N.M. 2004. Surficial geology, Inwood, Manitoba; Geological Survey of Canada; Manitoba 0 10 20 30 Industry, Economic Development and Mines, Manitoba Geological Survey, Geoscientific map ! 2003-1, 1 colour map. Scale 1:100 000. [joint GSC-MGS map] ! ! Kilometres Grant, N.M. 2004. Surficial geology, Woodlands, Manitoba; Geological Survey of Canada; Manitoba Industry, Economic Development and Mines, Manitoba Geological Survey, Major landforms: southern Manitoba Major landforms: NTS 62I A brief description of the Quaternary landscape of southern Manitoba Geoscientific map 2003-4, 1 colour map. Scale 1:100 000. [joint GSC-MGS map] 100° 98° 96° 98° 96° G 53° Eastward-facing bedrock escarpments culminating in cuestas which form the Manitoba Escarpment provide a foundation for the 53° e 51° 51° The Pas Moraine or M ge present-day landscape of southern Manitoba. To the east, the landscape is dominated by Precambrian rocks and bedrock structure, o Is SURFICIAL GEOLOGY COMPILATION MAP SERIES ra l i an such as faulting, is commonly visible. ne d Precambrian Dead-ice SG-62I Above the Manitoba Escarpment, the landscape is dominated by hummocky moraine or dead-ice topography, streamlined topography shield topography and glacial spillways. Many areas are covered by thick sequences of glacial till representing numerous glacial episodes Streamlined landforms Precambrian G dating back more than 100,000 years. The most recent glacial advances were from the northwest. Glacial till tends to be clay rich. l shield ac 52° ia 52° l The Interlake is dominated by streamlined landforms and in lower areas, glaciolacustrine depositional basins. Quaternary sediments flu Surficial geology of the Selkirk map sheet te tend to be relatively thin and the preservation of older sediments is uncommon, limited to bedrock protected areas such as s Dead-ice B L e i escarpments. Bedrock outcrops are common. Glacial advance was generally from the northwest, parallel to the streamlined topography d m (NTS 62I), Manitoba r o i c t landforms.
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