ine ibo sin River As Meadows 7 26R iv R 4 W R e3 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 98° r 96° 575,000 600,000 625,000 650,000 675,000 700,000 Rivercrest 50° 50° SURFICIAL GEOLOGY COMPILATION MAP SERIES 7 11 Rosser 8 Cloverleaf 6 101 East St. Paul West Pine Ridge 9 The Surficial Geology Compilation Map Series (SGCMS) addresses an increasing demand for St. Eustache 59 Middlechurch consistent surficial geology information for applications such as groundwater protection, Birds Hill Hazelridge Whitemouth industrial mineral management, protected lands, basic research, mineral exploration, 26 engineering, and environmental assessment. The SGCMS will provide province-wide coverage Oakbank at scales of 1:500 000, 1:250 000 and a final compilation at 1:1 000 000. 1 B 11 Fortier A r Tp 11 s o Tp 11 ke s n The unit polygons were digitized from paper maps originally published by the Geological h Oak in e ville a Survey of Canada and Manitoba Geological Survey (MGS). In several areas, digital polygons Benard ib d oSt. Francois Xavier derived from soils mapping were used to fill gaps in the geological mapping. The 1:250 000 13 in Elie e scale maps provide a bibliography for the original geological mapping. Dugald Glass Anola Vivian Edge-matching of adjoining 1:250 000 scale map sheets is based on data from the Shuttle 0 1 Winnipeg 1 0 15 Ste. Rita 0 15 Radar Topography Mission Digital Elevation Model (SRTM DEM ) as interpreted by the MGS. , Dacotah er 15 5 Riv 2 5 Other polygon inconsistencies were modified in a similar manner. Geology (colour) is draped , 5 over a shaded topographic relief map (grey tones) derived from the SRTM DEM. 0 0 Tp 10 L 0 Tp 10 a , 1 5 2 United States Geological Survey 2002: Shuttle radar topography mission, digital elevation model, Manitoba; United S 5 a , 5 States Geological Survey, URL <ftp://edcsgs9.cr.usgs.gov/pub/data/srtm/>, portions of files N48W88W.hgt.zip ll 12 e R through N60W102.hgt.zip, 1.5 Mb (variable), 90 m cell, zipped hgt format [Mar 2003]. Deacons Corner iv e r Springstein Prairie Grove LEGEND Quaternary Starbuck Oak Bluff Grande Pointe 2 100 Ross ORGANIC DEPOSITS: peat, muck; <1–5 m thick; very low Tp 9 1 Tp 9 2 S O relief wetland deposits; accumulated in fen, bog, swamp, and Fann e ystelle in e Lorette marsh settings 3 75 Dufresne SHORELINE SEDIMENTS: sand and gravel; 1–2 m thick; Culross R Lm i beaches; formed by waves at the margins of modern lakes v Ile des Chenes er La Salle COLLUVIUM: landslide debris, eroded slopes, sheet flood Sanford Oak Island Settlement Elm Creek 59 C deposits associated with steep slopes St. Adolphe Landmark Ste. Anne Tp 8 Tp 8 Linden 1 1 0 Richer 0 0 , 0 EOLIAN: sand and minor silt; dunes, blowouts and undulating 0 5 , 5 E plains; generally overlies deltaic sediments, coarse lacustrine Glenlea Greenland sediments, or glaciofluvial deposits 0 0 0 , Domain 0 0 5 , ALLUVIAL SEDIMENTS: sand and gravel, sand, silt, clay, Niverville Blumenort 5 R A iv organic detritus; 1–20 m thick; channel and overbank Brunkild e New Bothwell r sediments; reworked by existing rivers and deposited primarily Tp 7 Tp 7 as bars Giroux 3 rSte. Agathe MARGINAL GLACIOLACUSTRINE SEDIMENTS: sand and e Ls gravel; 1–20 m thick; beach ridges, spits, bars, littoral sand and iv Randolph gravel; formed by waves at the margin of glacial Lake Agassiz Osborne R Mitchell 52 Steinbach OFFSHORE GLACIOLACUSTRINE SEDIMENTS: clay, silt, minor La Broquerie Lc Homewood Sperling sand; 1–20 m thick; very low relief massive and laminated deposits; 3 Kleefeld deposited from suspension in offshore, deep water of glacial Lake Carman Agassiz; commonly scoured and homogenized by icebergs Tp 6 Tp 6 Rat River Settlement 75 DISTAL GLACIOFLUVIAL SEDIMENTS: fine sand, minor gravel, Gs thin silt and clay interbeds; 1–75 m thick; subaqueous outwash fans; Rosenort McTavish Aubigny deposited in glacial Lake Agassiz by meltwater turbidity currents; Silver Plains Marchand commonly reshaped by wave erosion and reworked by wind Carey St-Pierre-Jolys 0 0 0 , PROXIMAL GLACIOFLUVIAL SEDIMENTS: sand and gravel; 5 7 4 , G 1–20 m thick; complex deposits, belts with single or multiple esker 5 Riverside Grunthal ridges and kames, as well as thin, low-relief deposits; deposited in Tp 5 Tp 5 d Sarto 0 contact with glacial ice by meltwater 0 0 e , 5 R 59 7 4 , 5 TILL: diamicton; 1–75 m thick; low-relief, commonly streamlined deposits; subglacial Roland deposits; largely derived from shale above the Manitoba Escarpment, carbonate rocks Dufrost 23 Myrtle Kane Lowe Farm Morris in the central lowlands, and crystalline rocks in areas of Precambrian terrane; 23 23 thicker sequences consist of multiple units of varying texture; commonly scoured by icebergs; Ste. Elizabeth 12 St. Labre covered discontinuously by thin veneers (<1 m) of glaciolacustrine and glaciofluvial sediments Barkfield Sandilands St. Malo Tp 4 Tp 4 Calcareous clay diamicton, predominantly derived from Mesozoic Tm shale Woodridge Sewell Calcareous silt diamicton, predominantly derived from Paleozoic St. Jean Baptiste Tc dolomite and limestone Arnaud Carlowrie Carrick Non-calcareous sand diamicton, predominantly derived from Rat Tp Pre-cambrian crystalline rock Tp 3 12 Tp 3 r 0 ive 0 R 0 , 0 Rosenfeld 5 Roseau 4 Horndean Pre-Quaternary , Plum Coulee 5 14 Winkler Roseau River Reinfeld 0 0 ROCK: > 75% bedrock outcrop; Cretaceous shales above the 0 , 0 R Green Ridge 5 Manitoba Escarpment, Paleozoic carbonate-dominated rocks in 4 , 5 areas west and south of Lake Winnipeg, exposed typically as glacially striated, low-relief surfaces; in Precambrian terrane, generally Dominion City Chortitz Friedensruh Letellier Tp 2 St. Joseph 59 Stuartburn Vita Caliento Tp 2 unweathered intrusive, metasedimentary, and metavolcanic rocks Schanzenfeld having a glacially scoured irregular surface with high local relief 75 Altona Sundown Uncoloured legend blocks indicate units that do not appear on this map. 32 Gnadenthal 30 Altbergthal To aid the reader a shadow effect has been added to exaggerate the topographic relief. Osterwick Neuenburg Old Altona Gardenton Hochfeld Neubergthal Tolstoi Published by: Manitoba Industry, Economic Development and Mines Ridgeville Gnadenfeld Sommerfeld R Manitoba Geological Survey, 2004 iv Blumenfeld e Arbakka r Compiled by: G.L.D. Matile and G.R. Keller Rosetown Halbstadt Tp 1 Tp 1 Reinland Fredensthal Schoenwiese Modifed from: Kronsthal Matile, G.L.D. 2004. Surficial geology, Winnipeg, Manitoba; Geological Survey of Canada; Haskett Rosengart Manitoba Industry, Economic Development and Mines, Manitoba Geological Survey, Neuhorst Gretna Geoscientific map 2003-7, 1 colour map. Scale 1:100 000. [joint GSC-MGS map] Blumenort Emerson 49° 49° Matile, G.L.D. 2004. Surficial geology, Steinbach, Manitoba; Geological Survey of Canada; 575,000 600,000 625,000 650,000 675,000 700,000 Manitoba Industry, Economic Development and Mines, Manitoba Geological Survey, 98° 96° Geoscientific map 2003-8, 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 Printed 2004 Scale 1:250 000 Matile, G.L.D. 2004. Surficial geology, Winkler, Manitoba; Geological Survey of Canada; 0 10 20 30 Manitoba Industry, Economic Development and Mines, Manitoba Geological Survey, Geoscientific map 2003-10, 1 colour map. Scale 1:100 000. [joint GSC-MGS map] Kilometres Matile, G.L.D. 2004. Surficial geology, Sandilands, Manitoba; Geological Survey of Canada; Manitoba Industry, Economic Development and Mines, Manitoba Geological Survey, Major landforms: southern Manitoba Glacial flutes Major landforms: NTS 62H A brief description of the Quaternary landscape of southern Manitoba (clay draped) Geoscientific map 2003-11, 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 50° 50° The Pas Moraine or M ge Portage la Prairie Portage la Prairie 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 la G in n alluvial fan alluvial fan e d la such as faulting, is commonly visible. c ia Dead-ice l f SG-62H Above the Manitoba Escarpment, the landscape is dominated by hummocky moraine or dead-ice topography, streamlined topography lu Streamlined landforms te s topography and glacial spillways. Many areas are covered by thick sequences of glacial till representing numerous glacial episodes (c Precambrian la dating back more than 100,000 years. The most recent glacial advances were from the northwest. Glacial till tends to be clay rich. shield y d 52° r 52° a Surficial geology of the Winnipeg map sheet p The Interlake is dominated by streamlined landforms and in lower areas, glaciolacustrine depositional basins. Quaternary sediments e d tend to be relatively thin and the preservation of older sediments is uncommon, limited to bedrock protected areas such as ) Dead-ice B e escarpments. Bedrock outcrops are common. Glacial advance was generally from the northwest, parallel to the streamlined topography d (NTS 62H), Manitoba r o c us landforms. Glacial till is typically silt rich. Glacial retreat occurred in a series of steps marked by moraines: the Darlingford Moraine k Glacial Lake Agassiz clay plain Subaqueo f a u outwash 100° 96° 92° 88° (~11,000 years old); the Sandilands Moraine, which represents the interlobate position of the Rainy lobe from the northeast and the lt s fan Red River lobe from the northwest; the Birds Hill–Belair Moraine; the Teulon Moraine; and The Pas Moraine (~9000 years old).