https://ir.uiowa.edu/igs_ofm/1063/thumbnail.jp

Giglierano, James

Liu, Huaibao

McKay, Robert

English

Iowa Research Online

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92°22'30"W
92°22'30"W
92°25'0"W
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92°27'30"W
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42°45'0"N
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42°37'30"N
42°37'30"N
TRIPOLI
DENVER
BREMER
WAVERLY
PLAINFIELD
SHELL_ROCK
WATERLOO_NCEDAR_FALLSNEW_HARTFORD
LINN
LEE
SAC
TAMA
IDA
SIOUX CLAY
IOWA
LYON
POLK
CASS
KOSSUTH
PAGE
JASPER
ADAIR
BENTON JONES
DAVIS
CLAYTON
STORY
FAYETTE
CEDAR
CLINTON
BOONE
PLYMOUTH
MONONA
DALLAS
MILLS
FLOYD
SHELBY
OBRIEN
HARDIN
WAYNE
BUTLER
WOODBURY WEBSTER
WRIGHT
MARION KEOKUK
TAYLOR
SCOTT
JACKSON
GREENE
HARRISON
UNION
GUTHRIE
LUCAS
WARREN
JOHNSON
HENRY
DUBUQUE
CRAWFORD CARROLL
MADISON
ADAMS
FRANKLIN
MAHASKA
CALHOUN GRUNDY
POTTAWATTAMIE
HANCOCK
LOUISA
HAMILTON
DECATUR
EMMET
ALLAMAKEEWINNESHIEK
CLARKE
WORTH
PALO ALTO
MARSHALL
HOWARD
FREMONT
DELAWARE
CHEROKEE BREMER
BUCHANAN
RINGGOLD
POWESHIEK
MONROE
MITCHELL
WAPELLO
BUENA VISTA
AUDUBON
BLACK HAWK
VAN BUREN
CHICKASAW
POCAHONTAS
WASHINGTON
APPANOOSE
OSCEOLA
HUMBOLDT
MUSCATINE
CERRO GORDO
JEFFERSON
DICKINSON
DES MOINES
WINNEBAGO
MONTGOMERY
Base map from USGS Waverly 7.5' Digital Raster Graphic (IGS GIS file DRGH35.TIF) which wasscanned from the Waverly 7.5' Topographic Quadrangle map, published by US Geological Survey in 1963, photorevised in 1972.Topographic contours and land features based on 1958 aerial photography, field checked in 1963Land elevation contours (10' interval) based on NGVD 1929.
Iowa Geological Survey digital cartographic file Waverlyquad_bedrock09.mxd, version 6/15/09  (ArcGIS 9.2)Map projection and coordinate system based on Universal Transverse Mercator (UTM) Zone 15, datum NAD83.
The map and cross section are based on interpretations of the best available information at the time of mapping. Map interpretations are not a substitute for detailed site specific studies.
Drill Holes
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Bedrock Geology of the Waverly (Iowa) 7.5' Quadrangle
0 1 2 3 40.5 Kilometers
0 1 2 3 40.5 Miles
1:24,000
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Adjacent 7.5' Quadrangles Location Map
Correlation of Map Units
LEGEND  CENOZOIC  QUATERNARY SYSTEM   Qu – Undifferentiated unconsolidated sediment  Consists of loamy soils developed in loess and glacial till of variable thickness, and alluvial clay, silt, sand and gravel. Total thickness can be up to 56 m (180 ft) in the northeast part of the quad.  Unit shown only on cross-section, not on map.   PALEOZOIC  DEVONIAN SYSTEM  Dcv - Limestone and Dolomite (Coralville Formation) Middle Devonian. Thickness of this formation varies between 0 and 10 m (0-32 ft), and is dominated by limestone, dolomitic limestone, and dolomite, in part laminated and argillaceous; brachiopods and corals are usually abundant in the limestone facies.  Dlc - Dolomite and Limestone (Little Cedar Formation) Middle Devonian.  The thickness of this formation ranges from 27 to 36 m (90-120 ft) in this quad.  It is dominated by slightly argillaceous to argillaceous dolomite and dolomitic limestone, usually vuggy and partially laminated and/or cherty. This unit is commonly fossiliferous and brachiopods are especially abundant in lower portion.  Dw - Dolomite, Limestone, Shale, and minor Sandstone (Wapsipinicon Group) Middle Devonian. This map unit usually contains the Pinicon Ridge Formation only, with a total thickness that varies between 6 and 12 m (18-40 ft) in the mapping area. It is dominated by laminated or brecciated, unfossiliferous limestone and dolomite that is sometimes sandy and cherty at its base.  SILURIAN SYSTEM  Shb – Dolomite with Chert (Hopkinton and Blanding formations) Lower Silurian.  Total thickness up to 20 m (65 ft).  Fossil-moldic to vuggy dolomite, and cherty to very cherty with nodular to bedded chert in the upper part of the Blanding.  Fossils include corals, brachiopods and stromatoporoids.  ORDOVICIAN SYSTEM  Om – Shale and Dolomite (Maquoketa Formation) Upper Ordovician.  Total thickness up to 78 m (250 ft).  Interbedded dolomitic shale and shaly dolomite; variably cherty and fossiliferous with brachiopods and graptolites.  
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BEDROCK GEOLOGY OF THE WAVERLY 7.5’ QUADRANGLE,  BREMER AND BLACK HAWK COUNTIES, IOWA  Iowa Geological Survey Open File Map OFM-09-02 June 2009  prepared by  Robert McKay, Huaibao Liu, and James Giglierano  Iowa Geological Survey, Iowa City, Iowa  
   Iowa Department of Natural Resources, Richard A. Leopold, Director Iowa Geological Survey, Robert D. Libra, State Geologist   Supported in part by the U.S. Geological Survey  Cooperative Agreement Number 08HQAG0082 National Cooperative Geologic Mapping Program (STATEMAP)   ACKNOWLEDGMENTS  New subsurface geologic data was mostly generated by University of Iowa students Kristy Hanley, Sarah Byram and Kyle Bracken who produced descriptive logs of water well drill samples. Dr. Chad Heinzel of the University of Northern Iowa and his students joined the mapping team discussion on local geology and stratigraphy. Special thanks to Paul Niemann Construction, owner of the Denver-Foelske Quarry. Thomas Marshall of the Iowa Geological Survey (IGS) provided additional descriptive logging of water wells. Michael Bounk (IGS) participated in part of the field work; Deborah Quade (IGS) lent support with Quaternary field and office expertise; Murray Perdue (IGS) prepared well samples for stratigraphic logging; Ray Anderson and Brian Witzke (IGS) provided valued information concerning the bedrock topography, geology and Devonian and Silurian stratigraphy of the area; and Chris Kahle and Andy Asell (IGS) provided GIS mapping technical help. 
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Rhuddanian
Eifelian
Maysvillian
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GEOLOGIC CROSS-SECTION  A-B


Bedrock Geology of the Waverly 7.5\u27 Quadrangle, Bremer and Black Hawk counties, Iowa

https://ir.uiowa.edu/cgi/viewcontent.cgi?article=1063&amp;context=igs_ofm

Bedrock Geology of the Waverly 7.5\u27 Quadrangle, Bremer and Black Hawk counties, Iowa

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