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
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; Glacial flutes Manitoba Industry, Economic Development and Mines, Manitoba Geological Survey, A brief description of the Quaternary landscape of southern Manitoba Major landforms: southern Manitoba (clay draped) Major landforms: NTS 62H 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). 60° U p 51° Index Map George Island Moraine, contemporaneous with and to the east of The Pas Moraine, is another ice margin of the retreating Rainy 51° pe Alluvial fans 64N 64O 64P 54M r Precambrian Ca G
A m l h ac shield c lobe. s p ia a s b l f e
e e i lu b
n l l te n l 54L 54K
Dead-ice i 64K 64J 64I 58° i w s l
b
a e S
topography a r In the Precambrian shield, rock outcrops dominate the landscape. Quaternary sediments are commonly thick, but discontinuous, o Alluvial fans v b a o 58° i e li n n m p e - M d e c i rarely completely infilling the bedrock lows. Older sediments, including saprolites, are often preserved in the bedrock lows where n r t u i i m i 54F s o l 64F 64G 64H 54E p t a a a f a U 54G r l i s o c n p l e a N C p they are protected from glacial erosion. Glacial advance was generally from the northeast. Glacial till is typically sand rich. l c d e w r a M B b o r 54A
r r s C a r n – o t a p l h m
y o l n e M pb h
ul i a e ell beac 54C 54B a p Te H te o 64C 64B 64A 54D
s 56° As the glaciers retreated, glacial lakes Souris and Hind formed and drained, and glacial Lake Agassiz expanded northward, s g t p r
d l 50° a Portage la Prairie r a U 50° i c in 56° B ia 53O progressively covering the entire area below the Manitoba Escarpment. Major Lake Agassiz landforms include the Assiniboine alluvial fan l e d 53N e 63N 63O 63P 53M Assiniboine Delta b Alluvial fans Delta, which formed as glacial meltwater flowed from the Assiniboine spillway, and clay plains composed of tens of metres of clay ri Glacial Glacial Lake Agassiz s and silt. The Herman beaches indicate the highest level attained by Lake Agassiz in southern Manitoba. The Upper Campbell beach Lake Hind Sand dunes P clay plain G 53K em l 63K 63J 63I 53L b d M H a 54° is the best developed of the Lake Agassiz beaches and is evident along the base of the Manitoba Escarpment. in r o e c a o r r Alluvial fans S Bogs and fens i sp f a m a Alluvial fans a 54° i g i n l ll lin n a M d f w r e n o il l a a a u Holocene modifications to the landscape include eolian activity (sand dunes) primarily in the Assiniboine Delta and the Sandilands y D b ra n t 63F 63G 63H 53E e in d e a e s s Glacial c Moraine; the Portage la Prairie alluvial fan, from which fluctuating Assiniboine River flow directions over the last 7000 years have Dead-ice h NTS 62H Lake Souris e Alluvial fans 49° 49° topography s 49° 49° 63C 53D been documented; smaller alluvial fans that have developed along the Manitoba Escarpment; large landslide areas (colluvium) that 63B 63A 52° are active along the northern part of the Manitoba Escarpment; and organic accumulations (bogs and fens) with basal radiocarbon 100° 98° 96° 98° 96° 52° Scale 1:4 000 000 landforms indicating Scale 1:1 000 000 landforms indicating dates of approximately 6000 years, that occur in the northeast and extend westward into the northern and eastern Interlake and 62N 62O 62P 52M 800 500 200 0 20 40 80 120 160 direction of ice flow 0 5 10 20 30 40 direction of ice flow Legend southward into southeastern Manitoba. striations indicating Kilometres Kilometres m asl direction of ice flow 62K 62I 52L Map extent 62J 50° 50° 0 90 180 62F 62G 62H 52E Kilometres North American Datum 1983 Copies of this map can be obtained from: Phone: (204) 945-4154 Suggested reference: Universal Transverse Mercator Projection, Zone 14 Manitoba Industry, Economic Development and Mines Toll free: 1-800-223-5215 Matile, G.L.D. and Keller, G.R. 2004: Surficial geology of the Winnipeg map sheet (NTS 62H), Manitoba; Shuttle Radar Topography Mission elevation data provided by NASA (2003) Manitoba Geological Survey, Publication Sales E-mail: [email protected] 100° 96° 92° 100X Vertical Exaggeration 360-1395 Ellice Ave This map is available to download Manitoba Industry, Economic Development and Mines, Manitoba Geological Survey, Approximate mean declination (2004) for centre of map is 4°33' E, decreasing 6.1' annually. Winnipeg, MB, R3G 3P2 free of charge at Surficial Geology Compilation Map Series, SG-62H, scale 1:250 000. Canada www.gov.mb.ca/itm/mrd