QUADRANGLE LOCATION 40 60 80 100 20 120 40 20 40 40 100 40 40 100 80 40 80 20 80 40 60 80 60 60 80 40 40 80 80 40 20 60 40 60 80 40 80 60 60 80 60 100 40 100 20 SURFICIAL MATERIAL THICKNESS Digital Elevation Model Feet Meters High: 221 Low: 130 High: 725 Low: 427 Scale = 1:52,800 Contour Interval = 20 ft. 20 ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! !! !! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! !!!!! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! !! ! ! X X Data Point Distribution X Vs NA 2009 m/s ! Missouri Geotechnical DGLS ! Bedrock Borings DGLS Scale = 1:52,800 DATA POINT LOCATION 531 282 Qslt Qslt Qslt Qslt Qslt Qslt Qtd Qtd Qtd Qtd Qtd Qtd Qtd Ql Ql Qslt Ql Ql Ql Ql Ql Ql Ql Ql Ql Ql Ql Ql 580 560 540 520 500 480 460 440 420 400 380 360 600 620 340 640 660 560 600 580 580 400 560 640 580 480 540 460 600 580 440 620 520 500 620 620 540 480 540 540 600 480 540 600 520 560 480 560 480 600 520 520 460 520 420 560 400 620 TOP OF BEDROCK Digital Elevation Model Feet Meters High: 221 Low: 130 High: 725 Low: 427 Scale = 1:52,800 20 Contour Interval = 20 ft. Allen, W.H. and Ward, R.A., 1977, Soil, in The Resources of St. Charles County, Missouri, Land, Water, and Minerals; Satterfield, Ira and Harris, Barbara, eds.; Missouri Geological Survey, Department of Natural Resources, 237 p. Brill, K.G., 1991, Geologic Map of St. Louis City and County, Missouri; Division of Geology and Land Survey, Missouri Department of Natural Resources, OFM-91-0259, scale 1:62,500. Goodfield, A.G., 1965, Pleistocene and surficial geology of the City of St. Louis and the adjacent St. Louis County, Missouri; unpublished Ph.D. dissertation, University of Illinois, Urbana, IL, 206p., 6 pl. Harrison, R.W., 1997, Bedrock Geologic Map of the St. Louis 30' x 60' Quadrangle, Missouri and Illinois; U.S. Geological Survey, Miscellaneous Investigations Series Map I-2533, scale 1:100,000. Illinois State Geological Survey, 2007, Water and related wells in Illinois, ISGS map service: ILWATER 5/23/2007 <http://ablation.isgs.uiuc.edu/website/ilwater/viewer.htm> Missouri Department of Natural Resources, 2007, Well Logs, Wells Certified, Bedrock, Roads, IMOP, in Missouri Environmental Geology Atlas (MEGA); Division of Geology and Land Survey, Missouri Department of Natural Resources. Schrader, W.D., and Krusekoph, H.H., 1956, Soil survey of St. Charles County, Missouri; Soil Conservation Service, U.S. Department of Agriculture, 49 pages, 1 pl. Thompson, T. L., 1995, The stratigraphic succession in Missouri, v. 40 rev.; Division of Geology and Land Survey, Missouri Department of Natural Resources, 190 p. Williams, R.A., Odum, J.K., Stephenson, W.J., and Herrmann, R.B., 2007, Shallow P- and S-wave velocities in the St. Louis region, Missouri-Illinois: Earthquake Spectra, v. 23, no. 3, 711-726. BIBLIOGRAPHY Vertical Exageration = 20X Horizontal Scale = 1:24,000 Roads and water bodies are not to scale Water Feature Paleozoic Bedrock Pb Quaternary Terrace Lake Deposit Qtd Inferred Contact Quaternary Silt-Capped Alluvium Qslt Quaternary Loess Ql 200 60 600 500 400 300 Elevation in Feet 90 120 150 180 Elevation in Meters A A' Well Well Canal Fee Fee Creek Creve Coeur Creek Railroad Interstate 270 Railroad Fee Fee Creek Fee Fee Creek Well Well Well Well Well Hwy 180 Hwy 67 Well Coldwater Creek Qslt Qslt Qslt Ql Ql Ql Qtd Qtd Qtd Qtd Ql Ql Ql Ql Ql Ql Ql Qtd Pb Pb Pb Pb Pb Pb 38°45'00"N 38°42'30"N 38°40'00"N 38°37'30"N T 46 N T 45 N Produced by the Missouri Department of Natural Resources, Division of Geology and Land Survey, Geological Survey Program. Funded by the United States Geological Survey, National Earthquake Hazards Reduction Program, Award # G11AP20174, 2011. Topography was derived from a USGS 10 meter Digital Elevation Model using contouring software. Features were edited to the USGS, 38090-F4-TF-024, 1993, Creve Coeur 7.5' quadrangle and digital aerial photography from 2007 and 2009. Field checked in 2011. Universal Transverse Mercator (UTM), Zone 15. North American Datum 1983 (NAD 83). Road and Contour Symbology Contour Interval............. 10 Feet Interstate Highways ...... § ¨ ¦ 70 Missouri Highways ........ N Light Duty Roads........... Railroad......................... Elevation Contour .......... 10 Index Contour ................ 50 SCALE 1:24,000 Kilometers 1 0 1 2 0.5 Meters 500 1000 0 1000 2000 Miles 1 0 1 0.5 Feet 1000 0 1000 2000 3000 4000 5000 6000 7000 8000 9000 10000 500 UTM and 1994 Magnetic North Declination at Center of Sheet 2011 Magnetic North Declination ~ 0° - 46' East, Field Strength: 53055.5 nT ^ MN GN 1° 36’ 28 Mils 18 Mils 1° MISSOURI MISSOURI RIVER Creve Coeur Cr Creve Coeur Cr 500 550 550 550 550 550 550 550 550 550 550 550 550 600 600 600 600 650 650 600 600 600 650 650 650 650 650 650 600 650 650 600 600 600 550 550 550 550 550 550 600 600 550 500 550 550 550 550 500 500 500 500 500 500 550 550 550 550 550 600 600 600 600 600 600 650 650 650 600 600 600 650 650 550 600 600 600 550 650 550 550 600 600 650 650 700 700 600 650 650 700 700 650 600 700 650 650 600 650 650 650 600 550 550 650 600 600 650 600 600 550 550 500 500 500 550 500 500 550 500 500 500 550 450 450 500 550 550 550 600 600 500 450 450 550 550 550 600 600 600 600 550 550 550 550 550 500 550 550 600 650 650 650 700 650 700 650 650 650 700 600 600 600 550 500 550 600 650 600 600 650 600 550 550 550 550 550 550 600 600 500 500 500 500 500 500 500 500 500 500 550 500 500 550 550 550 550 550 600 600 600 600 650 600 600 600 600 600 550 600 600 600 550 550 600 600 550 500 500 500 500 500 550 600 550 550 550 500 500 500 500 550 550 550 550 600 600 450 450 450 450 450 Fee Fee Creek Coldwater Cr Deer Creek CREVE COEUR LAKE § ¨ ¦ 70 £ ¤ 364 ¬ « D ¬ « D ¬ « 340 ¬ « 340 ¬ « 340 ¬ « AB £ ¤ 40 § ¨ ¦ 64 § ¨ ¦ 64 ¬ « JJ § ¨ ¦ 270 § ¨ ¦ 270 £ ¤ 67 £ ¤ 67 ¬ « 180 ¬ « B 18 17 16 10 12 14 18 19 19 24 30 25 30 22 26 26 27 21 28 20 29 32 33 34 35 36 2 31 6 18 13 14 15 10 9 16 17 18 19 20 21 22 23 24 19 23 1 4 3 8 7 11 12 7 Vigus Maryland Heights BRIDGETON Pattonville St Ann OVERLAND Ascalon Benbush Fernridge Olivette LADUE Creve Coeur Westwood Town and Country Frontenac Qslt Qslt Qslt Qtd Ql Ql Qtd Qtd Qtd Qtd Qtd Ql Qslt Qslt Ql Ql Ql Ql Ql Ql Qtd Qtd Qtd Ql Ql Ql Ql Ql k k Qtd Qslt Qslt Qslt Ql Ql Ql Ql Ql Ql k k Ql Ql Ql Ql Ql Ql Ql Ql Ql Ql Ql Ql Qslt Qslt Ql Ql Ql Pb Ql Ql Ql Ql Ql Qtd Qtd Qtd Qtd Qslt Ql Ql Ql k k k Quarry 90°30'00"W 90°27'30"W 90°25'00"W 90°22'30"W 38°45'00"N 38°42'30"N 38°40'00"N 90°30'00"W 90°27'30"W 90°25'00"W 38°37'30"N 90°22'30"W R 5 E R 6 E R 5 E R 6 E T 46 N T 45 N A A' The Creve Coeur quadrangle includes part of the large floodplain of the Missouri River and loess covered uplands. The floodplain is greater than two miles wide in this area. The quadrangle lies within the Dissected Till Plains Section of the Central Lowland Province of the Interior Plains Physiographic Division. The lowest recorded elevation is 425 feet mean sea level (msl) and occurs along the edge of the Missouri River at the northeast corner of the quadrangle. The highest elevation on the quadrangle occurs on the loess covered uplands and is greater than 720 feet msl near the eastern boundary of the quadrangle. Total relief on the Creve Coeur quadrangle is approximately 300 feet. PHYSIOGRAPHY The Creve Coeur quadrangle is underlain primarily by deposits of Paleozoic limestone and shale. The majority of the quadrangle is underlain by the Pennsylvanian-age Cherokee and Marmaton Groups which are cyclic Desmoinesian Series deposits of shale, limestone, sandstone, clay and coal. The upland area in the east of the Creve Coeur quadrangle contains the Pennsylvanian-age Pleasanton Group which are Missourian Series deposits of shale and sandstone. The Mississippian-age St. Louis, Salem and Warsaw Formations underly the southwest of the quadrangle and in areas where tributaries have incised the younger Pennsylvanian-age formations. GEOLOGICAL OVERVIEW DESCRIPTION OF MAP UNITS ARTIFICIAL FILL – This unit comprises artificially emplaced fill material and is composed of a mixture of heterogeneous clay, silt, sand and gravel in various quantities. This unit may reach 40 feet in total thickness and comprises the material for highway and railroad beds and waste water treatment facility fill. This artificial fill has typically been placed on undisturbed materials. QUATERNARY SILT-CAPPED ALLUVIUM – This unit has been deposited by the Missouri River. The approximate upper 15 feet of these deposits are composed predominantly of clay with variable amounts of silt and organic material. The material residing below the clay is predominantly sand and gravel to the top of bedrock. The thickness of this unit ranges from approximately 60 feet where the floodplain transitions to uplands to more than 100 feet where the Missouri River has incised the Paleozoic bedrock. The water table is approximately five to 15 feet below ground surface, resulting in an interval of saturated sand and gravel more than 80 feet thick. This unit is included in the cross sections as Quaternary silt-capped alluvium. QUATERNARY LOESS – This unit is a wind-blown deposit of silt and clayey silt with occasional pockets of clay, sand and gravel. The unit is composed of two separate loess layers, the Roxana below and the Peoria above (Goodfield, 1965). The total thickness of the two units may reach 100 feet. The Roxana is higher in clay content and may have a paleosol developed in the upper few feet. The contact between the two units forms a potential slide plane in areas of high topographic relief. The loess overlies Mississippian-age bedrock comprised of limestone and shale creating two unique environments. Where the loess is thin, the limestone may be karstic. Where the underlying unit is predominantly shale, water will perch, destabilizing the contact zone. Where the loess rests upon shale, the slide potential is increased. QUATERNARY TERRACE DEPOSIT – The terrace deposits in the quadrangle are slightly different than previously mapped terrace deposits (Brill, 1991; Harrison, 1997; and Goodfield, 1965). All were deposited during fluvial events, leaving the terrace above low flow stage of the river. However, the terrace deposits in this quadrangle have a lacustrian signature of sensitive organic clays approximately 20 feet below the surface. After high stage flow returned to normal, low lying areas within the terrace were filled with organic clay material. This zone has a very low shear wave velocity and underlies many types of infrastructure. KARST – These areas have high concentrations of sinkholes, caves and other karstic features due to the solutional weathering of the Mississippian-age limestone underlying this area. These areas are typically found in the upland regions of the quadrangle. Line locates the placement of the cross section with end line symbols. Public Land Survey System including Spanish land grants. A A' Ql Qtd k Qslt AF Permission must be obtained to visit privately owned land SURFICIAL MATERIAL GEOLOGIC MAP OF THE CREVE COEUR 7.5' QUADRANGLE ST. LOUIS COUNTY, MISSOURI Geology and Digital Compilation by Bradley A. Mitchell 2011 OFM-11-598-GS MISSOURI DEPARTMENT OF NATURAL RESOURCES DIVISION OF GEOLOGY AND LAND SURVEY GEOLOGICAL SURVEY PROGRAM P.O. BOX 250, ROLLA MO 65402-0250 www.dnr.mo.gov/geology 573-368-2100 THIS MAP WAS PRODUCED UNDER A COOPERATIVE AGREEMENT WITH THE UNITED STATES GEOLOGICAL SURVEY