Dolomite Resources of Boone and De Kalb Counties
Total Page:16
File Type:pdf, Size:1020Kb
Load more
Recommended publications
-
Geology and Oil Production in the Tuscola Area, Illinois
124 KUItOfS GEOLOGICAL S SURVEY LIBRARY 14.GS: 4^ ^ CIR 424 :. 1 STATE OF ILLINOIS DEPARTMENT OF REGISTRATION AND EDUCATION Geology and Oil Production in the Tuscola Area, Illinois H. M. Bristol Ronald Prescott ILLINOIS STATE GEOLOGICAL SURVEY John C. Frye, Chief URBANA CIRCULAR 424 1968 Digitized by the Internet Archive in 2012 with funding from University of Illinois Urbana-Champaign http://archive.org/details/geologyoilproduc424bris GEOLOGY AND OIL PRODUCTION IN THE TUSCOLA AREA, ILLINOIS H. M. Bristol and Ronald Prescott ABSTRACT The Tuscola Anticline, in east-central Illinois, lies astride the complex LaSalle Anticlinal Belt and dips steeply westward into the Fairfield Basin and gradually eastward into the Murdock Syncline. The anticline is broken into two structural highs, the Hayes Dome and the Shaw Dome. Pleistocene sediments, 50 to 250 feet thick, cover the area. Pennsylvanian sediments cover much of the area, thinning to expose an inlier of Mississippian, Devonian, and Silurian rock north of Tuscola. The basal Cambrian for- mation, the Mt. Simon Sandstone, is penetrated by only two wells. Oil production from the Kimmswick (Trenton) com- menced in 1962 from the R. D. Ernest No. 1 Schweighart well, near Hayes, and as of January 1, 1968, approximately 30 wells were producing oil. Cumulative oil production as of January 1, 1968, is approximately 94,000 barrels. The potential pay zone is confined to the upper 5 to 100 feet of structure and to the upper 125 feet of the Kimmswick, whose permeability ranges from 0.1 to 2. millidarcys, av- eraging 0.6, and whose porosity ranges from 2 to 12 per- cent. -
IGS 2015B-Maquoketa Group
,QGLDQD*HRORJLFDO6XUYH\ $ERXW8V_,*66WDII_6LWH0DS_6LJQ,Q ,*6:HEVLWHIGS Website Search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
Geology for Planning in St. Clair County, Illinois
465 � JSGS-- -OIL & 6AS s SECJIGN--=fltES 14.GS: STATE OF ILLINOIS CIR465 c.4 DEPARTMENT OF REGISTRATION AND ED UCATION GEOLOGY FOR PLANNING IN ST. CLAIR COUNTY, ILLINOIS Alan M. Jacobs, compiler ILLINOIS ST ATE GEOLOGIC AL SURVEY John C. Frye, Chief Urbana, IL 61801 CIRCULAR 465 1971 GEOLOGY FOR PLANNING IN ST. CLAIR COUNTY, ILLINOIS Alan M. Jacobs, compiler ABSTRACT St. Clair County lies in southwestern Illinois across the Mississippi River from St. Louis, Missouri . One-fifth of the total land surface of 673 square miles is on flood plains of the Mississippi and Kaskaskia Rivers and Silver Creek. The floodplains are underlain by as much as 120 feet of gravel, sand, silt, and clay. The remaining fo ur fifths of the land surface is on uplands that contain flat or dissected plains, low ridges and mound-shaped hills, about 20 square miles of strip mines , and an area of karst topog raphy. The uplands are underlain by as much as 75 feet of till and sand and gravel, and generally 12 to 3 0 feet of loess and related silt; however, near the Mississippi River bluffs there are more than 100 feet of loes s and related silt. These deposits have been redistributed into spoil piles in the strip mines. Ben<ilath these deposits or cropping out in places are gently sloping beds of limestone, shale, sand stone, siltstone, clay stone, and coal. Thinly layered, frac tured limestone underlies the area of karst topography. Mineral and water resources are abundant in the county . Limestone of the St. -
Upper Ordovician) at Wequiock Creek, Eastern Wisconsin
~rnooij~~~mij~rnoo~ ~oorn~rn~rn~~ rnoo~~rnrn~rn~~ Number 35 September, 1980 Stratigraphy and Paleontology of the Maquoketa Group (Upper Ordovician) at Wequiock Creek, Eastern Wisconsin Paul A. Sivon Department of Geology University of Illinois Urbana, Illinois REVIEW COMMITTEE FOR THIS CONTRIBUTION: T.N. Bayer, Winona State College University, Winona Minnesota M.E. Ostrom, Wisconsin Geological Survey, Madison, Wisconsin Peter Sheehan, Milwaukee Public Museum· ISBN :0-89326-016-4 Milwaukee Public Museum Press Published by the Order of the Board of Trustees Milwaukee Public Museum Accepted for publication July, 1980 Stratigraphy and Paleontology of the Maquoketa Group (Upper Ordovician) at Wequiock Creek, Eastern Wisconsin Paul A. Sivon Department of Geology University of Illinois Urbana, Illinois Abstract: The Maquoketa Group (Upper Ordovician) is poorly exposed in eastern Wisconsin. The most extensive exposure is found along Wequiock Creek, about 10 kilometers north of Green Bay. There the selection includes a small part of the upper Scales Shale and good exposures of the Fort Atkinson Limestone and Brainard Shale. The exposed Scales Shale is 2.4 m of clay, uniform in appearance and containing no apparent fossils. Limestone and dolomite dominate the 3.9 m thick Fort Atkinson Limestone. The carbonate beds alternate with layers of dolomitic shale that contain little to no fauna. The shales represent times of peak terrigenous clastic deposition in a quiet water environment. The car- bonates are predominantly biogenic dolomite and biomicrite. Biotic succession within single carbonate beds includes replacement of a strophomenid-Lepidocyclus dominated bottom community by a trep- ostome bryozoan-Plaesiomys-Lepidocyclus dominated community. Transported echinoderm and cryptostome bryozoan biocalcarenites are common. -
Structural Framework of the Mississippi Embayment of Southern Illinois ^
<Olo£ 4.GV- Su&O&Ml STRUCTURAL FRAMEWORK OF THE MISSISSIPPI EMBAYMENT OF SOUTHERN ILLINOIS ^ Dennis R. Kolata, Janis D. Treworgy, and John M. Masters f^a>i^ < Illinois Institute of Natural Resources STATE GEOLOGICAL SURVEY DIVISION CIRCULAR 516 Jack A. Simon, Chief 1981 . COVER PHOTO: Exposure of Mississippian limestone along the Post Creek Cutoff in eastern Pulaski County, Illinois. The limestone is overlain (in ascending order) by the Little Bear Soil and the Gulfian (late Cretaceous) Tuscaloosa and McNairy Formations. Cover and illustrations by Sandra Stecyk. Kolata, Dennis R. Structural framework of the Mississippi Embayment of southern Illinois / by Dennis R. Kolata, Janis D. Treworgy, and John M. Masters. — Champaign, III. : State Geological Survey Division, 1981 — 38 p. ; 28 cm. (Circular / Illinois. State Geological Survey Division ; 516) 1. Geology — Mississippi Embayment. 2. Geology, Structural — Illinois, Southern. 3. Mississippi Embayment. I. Treworgy, Janis D. II. Masters, John M. III. Title. IV. Series. GEOLOGICAL SURVEY ILLINOIS STATE Printed by authority of State of Illinois (3,000/1981) 5018 3 3051 00003 STRUCTURAL FRAMEWORK OF THE MISSISSIPPI EMBAYMENT OF SOUTHERN ILLINOIS -*** t**- ILLINOIS STATE GEOLOGICAL SURVEY CIRCULAR 516 Natural Resources Building 1981 615 East Peabody Drive Champaign, IL 61820 Digitized by the Internet Archive in 2012 with funding from University of Illinois Urbana-Champaign http://archive.org/details/structuralframew516kola CONTENTS ABSTRACT 1 INTRODUCTION 1 METHOD OF STUDY 2 GEOLOGIC SETTING -
Preliminary Geologic Map of the Buried Bedrock Surface, Wisconsin Geological and Natural History Survey Brown County, Wisconsin Open-File Report 2011-02
Preliminary Geologic Map of the Buried Bedrock Surface, Wisconsin Geological and Natural History Survey Brown County, Wisconsin Open-File Report 2011-02 John A. Luczaj The bedrock surface in Brown County is typically overlain by Quaternary glacial sediment, ranging in thickness from 0 to 300 feet. These deposits include Pleistocene glacial till, outwash, and glaciolacustrine sediments from tens of feet to at least 300 feet in thickness in preglacial river valleys. Bedrock is best exposed along the Niagara Escarpment, which is 87°50'W DOOR CO 88°0'W produced by the resistant eastward-dipping Silurian Mayville Formation that overlies the ! ! ! ! BOUNDARY ! OCONTO CO!! !! ! INDEFINITE weaker Ordovician Maquoketa Shale. ! ! ! ! ! ! ! ! !! ! ! ! ! ! ! ! ! ! 88°10'W !!! ! ! ! !! ! ! ! ! ! ! ! ! L ! ! ! ! ! !! ! !! !!!! ! ! !! ! ! ! i ! ! ! ! ! ! ! !! ! t ! ! ! !! ! ! t ! ! ! ! ! ! ! ! ! 44°40'N !! ! !! ! ! !!! l ! ! ! ! ! ! ! ! e ! ! ! !!! !! ! ! ! ! ! ! ! !! ! ! ! ! ! ! ! ! ! ! T ! ! !! ! !! ! ! ! ! ! ! !! !! ! a ! ! ! ! ! ! ! ! !! ! ! ! i ! ! ! ! ! ! ! ! l ! ! ! ! ! !! P ! ! ! ! ! ! ! ! ! ! ! ! ! !!!! ! ! ! !! ! o ! ! ! ! ! ! ! ! ! ! EXPLANATION ! ! i 44°40'N ! ! ! ! ! n ! ! ! ! !!! ! ! ! ! ! !! ! ! t ! !! ! ! !! !! ! ! ! ! ! ! !! ! ! ! !! ! ! ! ! ! !! ! ! ! !!!!! ! !! ! ! ! ! ! ! ! ! Op ! ! ! ! ! ! ! ! ! ! !! ! ! ! !! ! ! ! ! ! ! ! ! ! SILURIAN ! ! ! ! ! ! ! ! ! ! ! !! ! ! ! !! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! !! ! ! ! ! ! ! ! ! ! ! Dyckesville!! Engadine Formation ! ! ! ! ! -
Facets of the Ordovician Geology of the Upper Mississippi Valley Region
FACETS OF THE ORDOVICIAN GEOLOGY OF THE UPPER MISSISSIPPI VALLEY REGION Iowa Geological Survey Guidebook Series No. 24 Guidebook for the 35th Annual Field Conference of the Great Lakes Section, Society for Sedimentary Geology (SEPM) September 23-25, 2005 Iowa Department of Natural Resources Jeffrey R. Vonk, Director September 2005 COVER Palisades of Ordovician Dunleith Formation along the Upper Iowa River near Bluffton in Winneshiek County. Photo by Greg Ludvigson Printed on recycled paper. FACETS OF THE ORDOVICIAN GEOLOGY OF THE UPPER MISSISSIPPI VALLEY REGION Iowa Geological Survey Guidebook Series No. 24 Guidebook for the 35th Annual Field Conference of the Great Lakes Section, Society for Sedimentary Geology (SEPM) September 23-25, 2005 Edited by Greg A. Ludvigson and Bill J. Bunker Field Trip Co-led by Greg A. Ludvigson, Iowa Geological Survey & University of Iowa Brian J. Witzke, Iowa Geological Survey & University of Iowa Norlene R. Emerson, University of Wisconsin-Richland Jeffrey A. Dorale, University of Iowa Michael J. Bounk, Iowa Geological Survey Jean N. Young, Luther College With contributions by E.C. Alexander, Jr. S.C. Alexander S.M. Bergström Univ. of Minnesota Univ. of Minnesota Ohio State Univ. S. Beyer M.J. Bounk C.E. Brett Univ. of Wisconsin-Madison Iowa Geological Survey Univ. of Cincinnati S.J. Carpenter L. Chetel J.A. Dorale Univ. of Iowa Univ. of Wisconsin-Madison Univ. of Iowa N.R. Emerson L.A. González J.A. Green Univ. of Wisconsin-Richland Univ. of Kansas Minnesota Dept. Nat. Resources W.D. Huff M.A. Kleffner D.R. Kolata Univ. of Cincinnati Ohio State Univ. -
June 4, 2014 ISGS FORMATION CODES and NAMES in CODE
ISGS FORMATION CODES AND NAMES IN CODE ORDER June 4, 2014 FORMATION CODE FORMATION NAME -99999 Unknown 009PLZC Paleozoic 109BSMN Basement 109GRNT Granite 109PCMB Pre-Cambrian 151LUDN Loudon 151MNSM Mount Simon 151MRRY Murray 151SHDY Shady 153BNTR Bonneterre 153CPRG Copper Ridge 153CRXN Croixian 153DRBC Dresbach 153DRBY Derby 153DVIS Davis 153ECLR Eau Claire 153ELMH Elmhurst sandstone 153ELVS Elvins 153EMNC Eminence 153FRNC Franconia 153GLVL Galesville 153IRNN Ironton 153JRDN Jordan 153LMBD Lombard 153POTS Potosi 153PRCR Proctor 153PRVS Proviso siltstone 153PSDM Potsdam 153TMPL Trempealeau 153TMPLS Trempealeau Sand 159BASL Basal Sand 159CMBR Cambrian 159GRWS Granite Wash 169CBOV Cambro-Ordovician 169KNOX Knox 169OVCB Ordovician Base 201CNDN Canadian Series 201CTTR Cotter 201GRSD Gunter Sand 201GSCB Gasconade 201JFRC Jefferson City 201NRCM New Richmond 201ONOT Oneota 201PRDC Prairie Du Chien 201RBDX Roubidoux 201SHKP Shakopee 202ABER Abernathy 202ANCL Ancell Group 202BKHR Buckhorn Page 1 ISGS FORMATION CODES AND NAMES IN CODE ORDER June 4, 2014 FORMATION CODE FORMATION NAME 202BKRV Black River 202BOLS Boles 202BRCK Brickeys 202CMPL Champlainian 202DCRH Decorah 202DNLT Dunleith Dolomite 202DTCN Dutchtown 202EVRN Everton 202GBRG Guttenburg 202GLEN Galena 202GLND Glenwood 202GRDD Grand Detour 202JCHM Joachim 202KMCK Kimmswick 202KRSS Kress 202MCSN Moccasin 202MFLN Mifflin 202NCHS Nachusa 202OTWA Ottawa Super Group 202PCNC Pecatonica 202PLTN Plattin 202PLVL Platteville 202QMBY Quimby Mill Dolomite 202RDLY Ridley 202SPCF Spechts Ferry 202SPTR -
UNIVERSITY of CALIFORNIA RIVERSIDE Molecular Organic
UNIVERSITY OF CALIFORNIA RIVERSIDE Molecular Organic Geochemical Records of Late Ordovician Biospheric Evolution ADissertationsubmittedinpartialsatisfaction of the requirements for the degree of Doctor of Philosophy in Geological Sciences by Megan Kimberly Rohrssen December 2013 Dissertation Committee: Dr. Gordon D. Love, Chairperson Dr. Timothy W. Lyons Dr. Woodward W. Fischer Copyright by Megan Kimberly Rohrssen 2013 The Dissertation of Megan Kimberly Rohrssen is approved: Committee Chairperson University of California, Riverside Acknowledgments Thank you, Gordon for introducing me to this field, in all its potential and pitfalls, and for giving me tools to work in it. Thank you to my committee members Tim Lyons and Woody Fischer, and co-authors David Fike and Seth Finnegan. Anything written here that’s worth reading probably is so because of your help. I am grateful to the entire faculty in UCR Earth Sciences for helping build such a positive environment, and for being so generous with your time and knowledge. Thank you Chao Li for so much patience in helping me grow less afraid of breaking things by teaching me to fix them. Mark Williams, thank you for putting up with my novice mentorship at the beginning and dissertation angst towards the end. Thanks, Steve Bates for all the help with the lab, like figuring out the dozen ways to break a rock powdering machine. Thank you Lidya Tarhan, Lucas Joel, Natascha Riedinger, Kayla Kroll, Jacqui Gilchrist, Eli Brewer, Julian Lozos, Cassy Rose, Amy Kelly, Corrie Neighbors, Kenny Ryan, Leanne Hancock, Robyn Dahl, Sarah Henry, and Joanna Oseguera for comradeship, commiseration, and occasional cat-sitting. Thank you Carina Lee and Emily Haddad (and Alex Zumberge, even though you just started!) for taking over the lab so ably. -
Field Trip Guide Book: Geology of Brown and Door Counties, Wisconsin May 30-31, 2009
2009 Spring Meeting and Field Trip of the Wisconsin Section of the American Institute of Professional Geologists May 30-31, 2009 Brown and Door Counties, Wisconsin Field Trip Guide Book: Geology of Brown and Door Counties, Wisconsin May 30-31, 2009 AIPG – Wisconsin Field Trip May 30-31, 2009 Introduction AN OVERVIEW OF THE 2009 GEOLOGY FIELD CONFERENCE OF THE WISCONSIN SECTION OF THE AMERICAN INSTITUTE OF PROFESSIONAL GEOLOGISTS Jack W. Travis, Ph.D., CPG, PG AIPG CPG-07378 Wisconsin PG 814-013 INTRODUCTION The 2009 Geology Field Conference of the Wisconsin section of the American Institute of Professional Geologists will familiarize participants to the stratigraphic and glacial setting of the Door Peninsula and demonstrate some geologic hazards associated with the bedrock. On Saturday, May 30, 2009, a bus tour will introduce you to some potential geologic hazards in Door County, along with some shoreline phenomena. On Sunday, May 31, 2009, the field conference will continue by motor caravan looking primarily at the stratigraphic setting of the Door Peninsula. LOCATION OF THE TOUR AREA The Door Peninsula is to be investigated during the 2009 Geology Field Conference of the Wisconsin section of the American Institute of Professional Geologists. In addition to traversing most of Door County, the northeastern part of Brown County, Wisconsin will also be investigated. Brown and Door counties make up the Door Peninsula. A field trip log in this report provides a description of the trip route and location of the various stops. GEOLOGIC CHARACTERISTICS OF THE STUDY AREA General Geologists have subdivided Wisconsin into two major physiographic provinces (i.e., areas with similar topography and geology), the Superior Upland and Central Lowlands. -
UC Riverside UC Riverside Electronic Theses and Dissertations
UC Riverside UC Riverside Electronic Theses and Dissertations Title Molecular Organic Geochemical Records of Late Ordovician Biospheric Evolution Permalink https://escholarship.org/uc/item/43p6d6h8 Author Rohrssen, Megan Publication Date 2013 Peer reviewed|Thesis/dissertation eScholarship.org Powered by the California Digital Library University of California UNIVERSITY OF CALIFORNIA RIVERSIDE Molecular Organic Geochemical Records of Late Ordovician Biospheric Evolution ADissertationsubmittedinpartialsatisfaction of the requirements for the degree of Doctor of Philosophy in Geological Sciences by Megan Kimberly Rohrssen December 2013 Dissertation Committee: Dr. Gordon D. Love, Chairperson Dr. Timothy W. Lyons Dr. Woodward W. Fischer Copyright by Megan Kimberly Rohrssen 2013 The Dissertation of Megan Kimberly Rohrssen is approved: Committee Chairperson University of California, Riverside Acknowledgments Thank you, Gordon for introducing me to this field, in all its potential and pitfalls, and for giving me tools to work in it. Thank you to my committee members Tim Lyons and Woody Fischer, and co-authors David Fike and Seth Finnegan. Anything written here that’s worth reading probably is so because of your help. I am grateful to the entire faculty in UCR Earth Sciences for helping build such a positive environment, and for being so generous with your time and knowledge. Thank you Chao Li for so much patience in helping me grow less afraid of breaking things by teaching me to fix them. Mark Williams, thank you for putting up with my novice mentorship at the beginning and dissertation angst towards the end. Thanks, Steve Bates for all the help with the lab, like figuring out the dozen ways to break a rock powdering machine. -
Hydrogeology of the Cambrian-Ordovician Aquifer System in the Northern Midwest, United States
,-----r~'t ~ '"'-v--'1_ I ,,.."\.__, /'\ \ ,.._,- l~...-"'\._,- ~ MINNESOTA ' I / "-' MICHIGAN ( ___ ,___ ) ' \ '' \ INDIANA \ ILLINOIS ~\ \.. ) ~) I ..- ~r ,. .. r'-( ~ .... 1-....1 l /J MISSOURI ~ - j J ~--------------..I ..$--' /_I' U.S. GEOLOGICAL SURVEY PROFESSIONAL PAPER 1405-B .Hydrogeology of the Cambrian-Ordovician Aquifer System in the Northern Midwest, United States By H.L. YOUNG With a section on GROUND-WATER QUALITY By D.I. SIEGEL REGIONAL AQUIFER SYSTEM ANALYSIS-NORTHERN MIDWEST U.S·. GEOLOGICAL SURVEY PROFESSIONAL PAPER 1405-B UNITED STATES GOVERNMENT PRINTING OFFICE, WASHINGTON 1992 U.S. DEPARTMENT OF THE INTERIOR MANUEL LUJAN, JR., Secretary U.S. GEOLOGICAL SURVEY Dallas L. Peck, Director Any use of trade, product, or firm names in this publication is for descriptive purposes only and does not imply endorsement by the U.S. Government Library of Congress Cataloging in Publication Data Young, H.L. Hydrogeology of the Cambrian-Ordovician aquifer system in the northern midwest, United States I by H.L. Young ; with a section on ground-water quality by D.l. Siegel p. em. -(Regional aquifer-system analysis-northern midwest) (U.S. Geological Survey professional paper ; 1405-B) (Regional aquifer-system analysis-northern midwest aquifer system.) ' Includes bibliographical references. Supt. of Docs. no.: I 19.16:1405-B 1. Water, Underground-Middle West. 2. Aquifers-MiddlE: West. 3. Geology, Stratigraphic-Cambrian. 4. Geology, Stratigraphic-Ordovician. I. Title. II. Series. Ill. Series: Regional aquifer-system analysis-northern midwest aquifer system. GB1017.Y67 1992 91-30254 551.49'0977-dc20 CIP For sale by Books and Open-File Reports, U.S. Geological Survey, Federal Center, Box 25286, Denver, CO 80225 FOREWORD THE REGIONAL AQUIFER-SYSTEM ANALYSIS PROGRAM The Regional Aquifer-System Analysis (RASA) Program was started in 1978 following a congressional mandate to develop quantitative appraisals of the major ground-water systems of the United States.