FTG-9: What The

Total Page:16

File Type:pdf, Size:1020Kb

FTG-9: What The What the H!? Paleozoic Stratigraphy Exposed Regional Stratigraphy and Structure in the Central Appalachians from the Ordovician to the Pennsylvanian as seen in new outcrops along US 48 (“Corridor H”) and other locations Pre-Meeting Field Trip Guide for the 46th Annual Meeting Eastern Section of the American Association of Petroleum Geologists (ESAAPG) Morgantown, West Virginia September 24 and 25, 2017 Field Trip Leaders and Authors Paula J. Hunt1, Ronald R. McDowell1, B. Mitch Blake, Jr.1, Jaime Toro2, Philip A Dinterman1 1 West Virginia Geological and Economic Survey, 1 Mont Chateau Rd., Morgantown, WV 26508 2 Department of Geology and Geography, West Virginia University, PO Box 6300, Morgantown, WV 26506 CoverImages Top:Tonolowayroadcutforeground,quarrybackgroundalongUS48 Middle(lefttoright):SenecaRocks,“Dragon’sTongue,”PaleoseismitesinSpechtyKopfFormation (Dintermanforscale) Bottom(lefttoright):US48(“CorridorH”),OldReedsville/MartinsburgquarryonUS33,FieldTrip RouteonGeologicMap PhotosinthisreportweretakenbyWVGESpersonnelunlessnotedotherwise. West Virginia Geological and Economic Survey Mont Chateau Research Center 1 Mont Chateau Road • Morgantown, WV 26508-8079 304.594.2331 • fax: 304.594.2575 www.wvges.org • [email protected] 39q39’30” N, 79q50’57” W Suggested citation: Hunt, P.J., R.R. McDowell, B.M. Blake, Jr., J. Toro, and P.A. Dinterman, 2017, What the H!? Paleozoic Stratigraphy Exposed,Pre-Meeting Field Trip Guide for the 46th Annual Meeting, Eastern Section of the American Association of Petroleum Geologists (ESAAPG), Morgantown, West Virginia, September 24 and 25, 2017: West Virginia Geological and Economic Survey, Field Trip Guide FTG-9, 87 p. TABLE OF CONTENTS Page INTRODUCTION......................................................................................................................................1 PhysiographicProvincesandGeologicStructureOverview...............................................................1 GeneralBedrockGeology...................................................................................................................2 MajorStratigraphicSequencesinthePaleozoicofWestVirginia...................................................11 StratigraphicNomenclature.............................................................................................................11 USRoute48(“CorridorH”)...............................................................................................................11 OilandGasFieldintheFieldTripArea............................................................................................11 AdditionalResources........................................................................................................................16 ReferencesforthisSection...............................................................................................................16 FIELDTRIPSTOPSDAY1.......................................................................................................................18 Stop1(Day1): Dragon’sTongue...................................................................................................18 Stop1.5(RollOver)(Day1): MissPennBoundary(underbridge)...............................................27 Stop2(Day1): AlleghenyFront,MauchChunkQuickLook..........................................................28 Stop3(Day1): Hampshire,SpechtyKopf,andPriceformations(Lunch).....................................34 Stop3.5(RollBy)(Day1): TonolowayQuarryandFolds...............................................................42 Stop4(Day1): MarcellusandMahantangoformations...............................................................45 Stop4.5(Day1): TonolowayandHelderbergFolds,RollBy.........................................................54 Stop5(Day1): HelderbergGroup(complete)andOriskanyContactatTruckStop....................55 Stop6(Day1): Helderberg,Oriskany,andNeedmoreformations...............................................61 Stop6.5(Rollby)(Day1) HampshireStructure............................................................................67 Stop7(Day1): WhipCoveAnticline,GreenlandGapGroup(ForeknobsFm.).............................69 FIELDTRIPSTOPSDAY2.......................................................................................................................75 Stop8(Day2): Oswego,Juniata,TuscaroraalongUS33............................................................75 Stop9a(Day2): GermanyValleyOverlook,WillsMountainAnticlineandReedsvilleShale........79 Stop9b(Day2): OldReedsvilleQuarry,US33..............................................................................84 Stop10(Day2): SenecaRocks(Lunch)..........................................................................................89 Tables Table1.FieldTripStopInformation.......................................................................................................3 Table2.UnitDescriptionsandCharacteristics.....................................................................................13 Figures Figure1.LocationMap(start,end,andallstops).................................................................................4 Figure2.WestVirginiaGeneralizedStratigraphicChart.......................................................................5 Figure3.WestVirginiaPhysiographicProvinceswithGeneralGeology...............................................6 Figure4.RegionalcrosssectionthroughtheAppalachiansnearUS48...............................................7 Figure5.StagesandsealevelchangesfromHaqandShutter(2008)..................................................9 Figure6.OrogenicinterpretationsforeasternWestVirginiaandShenandoahValley,Virginia..........9 Figure7.Stratigraphiccolumnwithdepositionalenvironments........................................................10 Figure8.OilandGasFieldsintheFieldTripArea...............................................................................12 What the H!? Pre-meeting Field Trip, ESAAPG, Morgantown, WV Page i September 2017 TABLE OF CONTENTS (continued) Figure9.TheDragon'sTongue............................................................................................................18 Figure10.LocationofWestVirginiaduringthePennsylvanian(LateCarboniferous)........................19 Figure11.Paleogeography,LatePennsylvanian,300MA..................................................................19 Figure12.ChronostratigraphicchartshowingPennsylvanianstratigraphyatStop1........................20 Figure13.GeologicSettingforStop1(Dragon’sTongue)..................................................................21 Figure14.Partofaseriesofslumpblocks..........................................................................................23 Figure15.Sedimentsabovethecontinuouserosivesurfaceoverlyingtheslumpblockcomplex.....23 Figure16.SlumpblockandrotationsurfaceinterpretationatDragon’sTongue..............................24 Figure17.GeologicSettingforRolloverandStop2............................................................................27 Figure18.MauchChunkoutcropacrossfromscenicoverlook..........................................................28 Figure19.PaleogeographyofStop2...................................................................................................29 Figure20.PaleosolsfromtheMississippianHintonFormationoftheMauchChunkGroup.............29 Figure21.FeaturesoftheMauchChunk............................................................................................31 Figure22.Hampshire,SpechtyKopf,andPriceformations(righttoleft)atStop3...........................34 Figure23.LocationofWestVirginiaduringthelateDevonian...........................................................34 Figure24.Left:LateDevonian(360Ma)Right:EarlyMississippian(345Ma)....................................35 Figure25.FeaturesoftheSpechtyKopfFormation............................................................................38 Figure26.RoadcutalongUS48exposingtheTonolowayFormation................................................42 Figure27.LateSilurian420Ma...........................................................................................................43 Figure28.TheMarcellusFormationatStop4....................................................................................45 Figure29.Stop4paleogeography.......................................................................................................45 Figure30.WestVirginianomenclatureusedforDevonianunits.......................................................46 Figure31.GeologicMapforStops4through6...................................................................................47 Figure32.CharacteristicsoftheMarcellusFormationatStop4........................................................48 Figure33.AdditionalCharacteristicsoftheMarcellusFormationatStop4......................................49 Figure34.Thinsectionphotomicrographfromacarbonateconcretion............................................49 Figure35.RadioactivityintheMarcellus............................................................................................50 Figure36.FossilsintheMahantangoFormation................................................................................51 Figure37.FoldsintheTonolowayandHelderbergalongUS48.........................................................54 Figure38.TheHelderbergGroupoutcropatStop5...........................................................................55 Figure39.FormationsintheHelderbergGroupatStop5..................................................................55
Recommended publications
  • Geology of the Prater and Vansant Quadrangles, Virginia Commonwealth of Virgin Ia
    VIRGINIA DIVISION OF MINERAL RESOURCES PUBLICATION 52 GEOLOGY OF THE PRATER AND VANSANT QUADRANGLES, VIRGINIA Jack E. Nolde and Martin L. Mitchell with sections on subsurface stratigraphy and gas resources by Joan K. Polzin COMMONWEALTH OF VIRGIN IA DEPARTMENT OF CONSERVATION AND ECONOMIC DEVELOPMENT DIVISION OF MINERAL RESOURCES Robert c. Milici, commissioner of Mineral Resources and state Geologist CHARLOTTESVI LLE, VI RGINIA 1984 VIRGINIA DIVISION OF MINERAL RESOURCES PUBLICATION 52 GEOLOGY OF THE PRATER AND VANSANT QUADRANGLES, VI RGINIA Jack E. Nolde and Martin L. Mitchell with sections on subsurface stratigraphy and gas resources by Joan K. Polzin COMMONWEALTH OF VIRGINIA DEPARTMENT OF CONSERVATION AND ECONOMIC DEVELOPMENT DIVISION OF MINERAL RESOURCES Robert c. Milici, commissioner of Mineral Resources and state Geologist CHARLOTTESVILLE, VIRGI NIA 1984 COVER PHOTO: Jewell Coal and Coke Company coking operation on Dismal Creek in northeast Vansant quadrangle (photo by J.H. Grantham). VIRGINIA DIVISION OF MINERAL RESOURCES PUBLICATION 52 GEOLOGY OF THE PRATER AND VANSANT QUADRANGLES, VIRG I NIA Jack E. Nolde and Martin L. Mitchell with sections on subsurface stratigraphy and gas resources by Joan K. Polzin COMMONWEALTH OF VIRGINIA DEPARTMENT OF CONSERVATION AND ECONOMIC DEVELOPMENT DIVISION OF MINERAL RESOURCES Robert C. Milici, Commissioner of Mineral Resources and State Geologist CHARLOTTESVILLE, VIRGINIA 1984 DEPARTM ENT OF CONSERVATION AND ECONOMIC DEVELOPMENT Richmond, Virginia FRED W. WALKER, Director JERALD F. MOORE, Deputy Director BOARD HENRY T. N. GRAVES, Chairman, Luray ADOLF U. HONKALA, Vice Chairman, Midlothian FRANK ARMSTRONG. III. Winchester RICK E. BURNELL, Virginia Beach GWENDOLYN JO M. CARLBERG, Alexandria WILBUR S. DOYLE, Martinsville BRUCE B. GRAY, Waverly MILDRED LAYNE, Williamsburg JOHN E.
    [Show full text]
  • Geology of the Devonian Marcellus Shale—Valley and Ridge Province
    Geology of the Devonian Marcellus Shale—Valley and Ridge Province, Virginia and West Virginia— A Field Trip Guidebook for the American Association of Petroleum Geologists Eastern Section Meeting, September 28–29, 2011 Open-File Report 2012–1194 U.S. Department of the Interior U.S. Geological Survey Geology of the Devonian Marcellus Shale—Valley and Ridge Province, Virginia and West Virginia— A Field Trip Guidebook for the American Association of Petroleum Geologists Eastern Section Meeting, September 28–29, 2011 By Catherine B. Enomoto1, James L. Coleman, Jr.1, John T. Haynes2, Steven J. Whitmeyer2, Ronald R. McDowell3, J. Eric Lewis3, Tyler P. Spear3, and Christopher S. Swezey1 1U.S. Geological Survey, Reston, VA 20192 2 James Madison University, Harrisonburg, VA 22807 3 West Virginia Geological and Economic Survey, Morgantown, WV 26508 Open-File Report 2012–1194 U.S. Department of the Interior U.S. Geological Survey U.S. Department of the Interior Ken Salazar, Secretary U.S. Geological Survey Marcia K. McNutt, Director U.S. Geological Survey, Reston, Virginia: 2012 For product and ordering information: World Wide Web: http://www.usgs.gov/pubprod Telephone: 1-888-ASK-USGS For more information on the USGS—the Federal source for science about the Earth, its natural and living resources, natural hazards, and the environment: World Wide Web: http://www.usgs.gov Telephone: 1-888-ASK-USGS Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government. Although this report is in the public domain, permission must be secured from the individual copyright owners to reproduce any copyrighted material contained within this report.
    [Show full text]
  • Geological Investigations in Ohio
    INFORMATION CIRCULAR NO. 21 GEOLOGICAL INVESTIGATIONS IN OHIO 1956 By Carolyn Farnsworth STATE OF OHIO C. William O'Neill, Governor DEPARTMENT OF NATURAL RESOURCES A. W. Marion, Director NATURAL RESOURCES COMMISSION Milton Ronsheim, Chairman John A. Slipher, Bryce Browning, Vice Chairman Secretary C. D. Blubaugh Dean L. L. Rummell Forrest G. Hall Dr. Myron T. Sturgeon A. W. Marion George Wenger DIVISION OF GEOLOGICAL SURVEY Ralph J. Bernhagen, Chief STATI OF OHIO DIPAlTMIMT 011 NATUlAL llSOUlCH DIVISION OF &EOLO&ICAL SURVEY INFORMATION CIRCULAR NO. 21 'GEOLOG·ICAL INVESTIGATIONS IN OHIO 1956 by CAROLYN FARNSWORTH COLUMBUS 1957 Blank Page CONTENTS Page Introduction 1 Project listing by author 2 Project listing by subject . 22 Economic geology 22 Aggregates . 22 Coal . • 22 Ground water 22 Iron .. 22 Oil and gas 22 Salt . 22 Sand and gravel 23 General .. 23 Geomorphology 23 Geophysics 23 Glacial geology 23 Mineralogy and petrology . 24 Clay .. 24 Coal . 24 Dolomite 24 Limestone. 24 Sandstone •• 24 Shale. 24 Till 25 Others 25 Paleontology. 25 Stratigraphy and sedimentation 26 Structural geology . 27 Miscellaneous . 27 Geographic distribution. 27 Statewide 27 Areal. \\ 28 County 29 Miscellaneous . 33 iii Blank Page I INTRODUCTION In September 1956, letters of inquiry and questionnaires were sent to all Ohio geologists on the mailing list of the Ohio Geological Survey, and to other persons who might be working on geological problems in Ohio. This publication has been compiled from the information contained on the returned forms. In most eases it is assumed that the projects listed herein will culminate in reports which will be available to the profession through scientific journals, government publications, or grad- uate school theses.
    [Show full text]
  • Subsurface Facies Analysis of the Devonian Berea Sandstone in Southeastern Ohio
    SUBSURFACE FACIES ANALYSIS OF THE DEVONIAN BEREA SANDSTONE IN SOUTHEASTERN OHIO William T. Garnes A Thesis Submitted to the Graduate College of Bowling Green State University in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE December 2014 Committee: James Evans, Advisor Jeffrey Snyder Charles Onasch ii ABSTRACT James Evans, Advisor The Devonian Berea Sandstone is an internally complex, heterogeneous unit that appears prominently both in outcrop and subsurface in Ohio. While the unit is clearly deltaic in outcrops in northeastern Ohio, its depositional setting is more problematic in southeastern Ohio where it is only found in the subsurface. The goal of this project was to search for evidence of a barrier island/inlet channel depositional environment for the Berea Sandstone to assess whether the Berea Sandstone was deposited under conditions in southeastern Ohio unique from northeastern Ohio. This project involved looking at cores from 5 wells: 3426 (Athens Co.), 3425 (Meigs Co.), 3253 (Athens Co.), 3252 (Athens Co.), and 3251 (Athens Co.) In cores, the Berea Sandstone ranges from 2 to 10 m (8-32 ft) thick, with an average thickness of 6.3 m (20.7 ft). Core descriptions involved hand specimens, thin section descriptions, and core photography. In addition to these 5 wells, the gamma ray logs from 13 wells were used to interpret the architecture and lithologies of the Berea Sandstone in Athens Co. and Meigs Co. as well as surrounding Vinton, Washington, and Morgan counties. Analysis from this study shows evidence of deltaic lobe progradation, abandonment, and re-working. Evidence of interdistributary bays with shallow sub-tidal environments, as well as large sand bodies, is also present.
    [Show full text]
  • Chapter 1: Sequence Stratigraphy of the Glenshaw Formation
    Martino, R. L., 2004, Sequence stratigraphy of the Glenshaw Formation (middle–late Pennsylvanian) in the central Appalachian basin, in J. C. Pashin and R. A. Gastaldo, eds., Sequence stratigraphy, paleoclimate, and tectonics of coal-bearing strata: AAPG Studies 1 in Geology 51, p. 1–28. Sequence Stratigraphy of the Glenshaw Formation (Middle–Late Pennsylvanian) in the Central Appalachian Basin Ronald L. Martino Department of Geology, Marshall University, Huntington, West Virginia, U.S.A. ABSTRACT he Glenshaw Formation consists predominantly of sandstones and mud- rocks with thin limestones and coals, which are thought to have accumu- T lated in alluvial, deltaic, and shallow-marine environments. Analysis of 87 Glenshaw outcrops from southern Ohio, eastern Kentucky, and southern West Vir- ginia has revealed widespread, well-developed paleosols. These paleosols are used, along with marine units and erosional disconformities, to develop a high-resolution sequence-statigraphic framework. The tops of the paleosols constitute boundaries for nine allocycles, which are interpreted as fifth-order depositional sequences. Allocycles in this framework correlate with similar allocycles described from the northern Appalachian basin. A sequence-stratigraphic model is proposed that provides a framework for in- terpreting facies architecture in terms of base-level dynamics linked to relative sea level changes. Lowered base level caused valley incision along drainage lines and sediment bypassing of interfluves, which led to development of well-drained paleo- sols. Rising base level produced valley filling by fluvioestuarine systems (lowstand systems tract/transgressive systems tract), whereas pedogenesis continued on inter- fluves. As drainage systems aggraded, the coastal plain water table rose, and in- terfluvial paleosols were onlapped by paludal and lacustrine deposits.
    [Show full text]
  • Historical Development and Problems Within the Pennsylvanian Nomenclature of Ohio.1
    Historical Development and Problems Within the Pennsylvanian Nomenclature of Ohio.1 GLENN E. LARSEN, OHIO Department of Natural Resources, Division of Geological Survey, Fountain Sq., Bldg. B, Columbus, OH 43224 ABSTRACT. An analysis of the historical development of the Pennsylvanian stratigraphic nomenclature, as used in Ohio, has helped define and clarify problems inherent in Ohio's stratigraphic nomenclature. Resolution of such problems facilitates further development of a useful stratigraphy and philosophy for mapping. Investigations of Pennsylvanian-age rocks in Ohio began as early as 1819- From 1858 to 1893, investigations by Newberry, I. C. White, and Orton established the stratigraphic framework upon which the present-day nomenclature is based. During the 1950s, the cyclothem concept was used to classify and correlate Pennsylvanian lithologic units. This classification led to a proliferation of stratigraphic terms, as almost every lithologic type was named and designated as a member of a cyclothem. By the early 1960s, cyclothems were considered invalid as a lithostratigraphic classification. Currently, Pennsylvanian nomenclature of Ohio, as used by the Ohio Division of Geological Survey, consists of four groups containing 123 named beds, with no formal formations or members. In accordance with the 1983 North American Stratigraphic code, the Ohio Division of Geological Survey considers all nomenclature below group rank as informal. OHIO J. SCI. 91 (1): 69-76, 1991 INTRODUCTION DISCUSSION Understanding the historical development of Pennsyl- The Early 1800s vanian stratigraphy in Ohio is important to the Ohio The earliest known references to Pennsylvanian-age Division of Geological Survey (OGS). Such an under- rocks in Ohio are found in Atwater's (1819) report on standing of Pennsylvanian stratigraphy helps define Belmont County, and an article by Granger (1821) on plant stratigraphic nomenclatural problems in order to make fossils collected near Zanesville, Muskingum County.
    [Show full text]
  • Geologic Cross Section C–C' Through the Appalachian Basin from Erie
    Geologic Cross Section C–C’ Through the Appalachian Basin From Erie County, North-Central Ohio, to the Valley and Ridge Province, Bedford County, South-Central Pennsylvania By Robert T. Ryder, Michael H. Trippi, Christopher S. Swezey, Robert D. Crangle, Jr., Rebecca S. Hope, Elisabeth L. Rowan, and Erika E. Lentz Scientific Investigations Map 3172 U.S. Department of the Interior U.S. Geological Survey U.S. Department of the Interior KEN SALAZAR, Secretary U.S. Geological Survey Marcia K. McNutt, Director U.S. Geological Survey, Reston, Virginia: 2012 For more information on the USGS—the Federal source for science about the Earth, its natural and living resources, natural hazards, and the environment, visit http://www.usgs.gov or call 1–888–ASK–USGS. For an overview of USGS information products, including maps, imagery, and publications, visit http://www.usgs.gov/pubprod To order this and other USGS information products, visit http://store.usgs.gov Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government. Although this report is in the public domain, permission must be secured from the individual copyright owners to reproduce any copyrighted materials contained within this report. Suggested citation: Ryder, R.T., Trippi, M.H., Swezey, C.S. Crangle, R.D., Jr., Hope, R.S., Rowan, E.L., and Lentz, E.E., 2012, Geologic cross section C–C’ through the Appalachian basin from Erie County, north-central Ohio, to the Valley and Ridge province, Bedford County, south-central Pennsylvania: U.S. Geological Survey Scientific Investigations Map 3172, 2 sheets, 70-p.
    [Show full text]
  • Figure 3A. Major Geologic Formations in West Virginia. Allegheney And
    82° 81° 80° 79° 78° EXPLANATION West Virginia county boundaries A West Virginia Geology by map unit Quaternary Modern Reservoirs Qal Alluvium Permian or Pennsylvanian Period LTP d Dunkard Group LTP c Conemaugh Group LTP m Monongahela Group 0 25 50 MILES LTP a Allegheny Formation PENNSYLVANIA LTP pv Pottsville Group 0 25 50 KILOMETERS LTP k Kanawha Formation 40° LTP nr New River Formation LTP p Pocahontas Formation Mississippian Period Mmc Mauch Chunk Group Mbp Bluestone and Princeton Formations Ce Obrr Omc Mh Hinton Formation Obps Dmn Bluefield Formation Dbh Otbr Mbf MARYLAND LTP pv Osp Mg Greenbrier Group Smc Axis of Obs Mmp Maccrady and Pocono, undivided Burning Springs LTP a Mmc St Ce Mmcc Maccrady Formation anticline LTP d Om Dh Cwy Mp Pocono Group Qal Dhs Ch Devonian Period Mp Dohl LTP c Dmu Middle and Upper Devonian, undivided Obps Cw Dhs Hampshire Formation LTP m Dmn OHIO Ct Dch Chemung Group Omc Obs Dch Dbh Dbh Brailler and Harrell, undivided Stw Cwy LTP pv Ca Db Brallier Formation Obrr Cc 39° CPCc Dh Harrell Shale St Dmb Millboro Shale Mmc Dhs Dmt Mahantango Formation Do LTP d Ojo Dm Marcellus Formation Dmn Onondaga Group Om Lower Devonian, undivided LTP k Dhl Dohl Do Oriskany Sandstone Dmt Ot Dhl Helderberg Group LTP m VIRGINIA Qal Obr Silurian Period Dch Smc Om Stw Tonoloway, Wills Creek, and Williamsport Formations LTP c Dmb Sct Lower Silurian, undivided LTP a Smc McKenzie Formation and Clinton Group Dhl Stw Ojo Mbf Db St Tuscarora Sandstone Ordovician Period Ojo Juniata and Oswego Formations Dohl Mg Om Martinsburg Formation LTP nr Otbr Ordovician--Trenton and Black River, undivided 38° Mmcc Ot Trenton Group LTP k WEST VIRGINIA Obr Black River Group Omc Ordovician, middle calcareous units Mp Db Osp St.
    [Show full text]
  • A2 and B2: Upper Devonian Kellwasser Extinction Events in New York and Pennsylvania: Offshore to Onshore Transect Across the F
    A2 AND B2: UPPER DEVONIAN KELLWASSER EXTINCTION EVENTS IN NEW YORK AND PENNSYLVANIA: OFFSHORE TO ONSHORE TRANSECT ACROSS THE FRASNIAN-FAMENNIAN BOUNDARY ON THE EASTERN MARGIN OF THE APPALACHIAN BASIN ANDREW M. BUSH AND J. ANDREW BEARD Geosciences & Ecology and Evolutionary Biology, University of Connecticut, Storrs, CT 06269 GORDON BAIRD Department of Geosciences, SUNY Fredonia, Fredonia, NY 14063 D. JEFFREY OVER Department of Geological Sciences, SUNY Geneseo, Geneseo, NY 14454 with contributions by KATHERINE TUSKES Department of Geological Sciences, Atmospheric, Ocean, and Earth Science, George Mason University, Manassas, VA 20110 SARAH K. BRISSON AND JALEIGH Q. PIER Geosciences & Ecology and Evolutionary Biology, University of Connecticut, Storrs, CT 06269 INTRODUCTION Earth-system perturbations caused a series of mass extinction events during the Devonian Period, including the Taghanic event in the Givetian, the Lower and Upper Kellwasser events in the Frasnian, and the Hangenberg event in the Famennian (House, 2002; Bambach, 2006). These extinctions occurred against the backdrop of orbitally forced sea-level fluctuations, the Acadian Orogeny (Averbuch et al., 2005), the expansion of plants and animals on land (Algeo et al., 1995), and ecological changes in the marine biosphere (Signor and Brett, 1984; Bambach, 1999). The Frasnian-Famennian boundary in particular represents a significant global crisis, considered one of the “big five” mass extinctions (Raup and Sepkoski, 1982) that led to the demise of the widespread and diverse Devonian
    [Show full text]
  • (Late Devonian) Boundary Within the Foreknobs Formation, Maryland and West Virginia
    The Frasnian-Famennian (Late Devonian) boundary within the Foreknobs Formation, Maryland and West Virginia GEORGE R. McGHEE, JR. Department of Geological Sciences, University of Rochester, Rochester, New York 14627 ABSTRACT The approximate position of the Frasnian-Famennian (Late De- vonian) boundary is determined within the Foreknobs Formation along the Allegheny Front in Maryland and West Virginia by utiliz- ing the time ranges of the articulate brachiopods Athryis angelica Hall, Cyrtospirifer sulcifer (Hall), and members of the Atrypidae. INTRODUCTION The age of strata previously called the "Chemung Formation" along the Allegheny Front in Maryland and West Virginia (Fig. 1) has been of interest to Devonian wokers for some time. Recent at- tempts to resolve this problem include the works of Dennison (1970, 1971) and Curry (1975). New paleontological contribu- tions to the resolution of time relations within the Greenland Gap Group ("Chemung Formation") are the object of this paper, which is an outgrowth of a much larger ecological analysis of Late Devo- nian benthic marine fauna as preserved in the central Appalachians (McGhee, 1975, 1976). STRATIGRAPHIC SETTING The following is a condensation and summary of the evolution of Upper Devonian stratigraphic nomenclatural usage in the study Figure 1. Location map of study area, showing positions of the mea- area; for a more complete and thorough discussion, the reader is sured sections used in this study (after Dennison, 1970). referred to Dennison (1970) and Kirchgessner (1973). The Chemung Formation was originally designated by James lower Cohocton Stage." Elsewhere, concerning the upper limit of Hall (1839) from Chemung Narrows in south-central New York.
    [Show full text]
  • Structural Geology of the Transylvania Fault Zone in Bedford County, Pennsylvania
    University of Kentucky UKnowledge University of Kentucky Master's Theses Graduate School 2009 STRUCTURAL GEOLOGY OF THE TRANSYLVANIA FAULT ZONE IN BEDFORD COUNTY, PENNSYLVANIA Elizabeth Lauren Dodson University of Kentucky, [email protected] Right click to open a feedback form in a new tab to let us know how this document benefits ou.y Recommended Citation Dodson, Elizabeth Lauren, "STRUCTURAL GEOLOGY OF THE TRANSYLVANIA FAULT ZONE IN BEDFORD COUNTY, PENNSYLVANIA" (2009). University of Kentucky Master's Theses. 621. https://uknowledge.uky.edu/gradschool_theses/621 This Thesis is brought to you for free and open access by the Graduate School at UKnowledge. It has been accepted for inclusion in University of Kentucky Master's Theses by an authorized administrator of UKnowledge. For more information, please contact [email protected]. ABSTRACT OF THESIS STRUCTURAL GEOLOGY OF THE TRANSYLVANIA FAULT ZONE IN BEDFORD COUNTY, PENNSYLVANIA Transverse zones cross strike of thrust-belt structures as large-scale alignments of cross-strike structures. The Transylvania fault zone is a set of discontinuous right-lateral transverse faults striking at about 270º across Appalachian thrust-belt structures along 40º N latitude in Pennsylvania. Near Everett, Pennsylvania, the Breezewood fault terminates with the Ashcom thrust fault. The Everett Gap fault terminates westward with the Hartley thrust fault. Farther west, the Bedford fault extends westward to terminate against the Wills Mountain thrust fault. The rocks, deformed during the Alleghanian orogeny, are semi-independently deformed on opposite sides of the transverse fault, indicating fault movement during folding and thrusting. Palinspastic restorations of cross sections on either side of the fault zone are used to compare transverse fault displacement.
    [Show full text]
  • University of Texas at Arlington Dissertation Template
    CHEMOSTRATIGRAPHY AND PALEOCEANOGRAPHY OF THE MISSISSIPPIAN BARNETT FORMATION, SOUTHERN FORT WORTH BASIN, TEXAS, USA by JAMES DANIEL HOELKE Presented to the Faculty of the Graduate School of The University of Texas at Arlington in Partial Fulfillment of the Requirements for the Degree of MASTER OF SCIENCE IN GEOLOGY THE UNIVERSITY OF TEXAS AT ARLINGTON AUGUST 2011 Copyright © by James Hoelke 2011 All Rights Reserved ACKNOWLEDGEMENTS First, I would like to thank my advisor, Dr. Harry Rowe, for his patience, time and energy during these past few years. I have learned much from him. This thesis would not have been possible without him. Second, I would like to thank the members of my graduate committee, Dr. Andrew Hunt and Dr. Robert Loucks, for the knowledge and insight you have provided in class and in conversations. I would also like to thank Dr. Christopher Scotese for assistance and advice with paleogeographic maps. I would also like to thank several members of the Texas Bureau of Economic Geology. I would like to thank especially Dr. Stephen Ruppel for providing core access and material support for this project as well as advice. I would also like to thank James Donnelly, Nathan Ivicic, Kenneth Edwards, and Josh Lambert for core handling assistance. I want to thank Henry Francis and Andrea Conner at the Kentucky Geological Survey for providing geochemical analyses. I would also like to thank some members of our geochemistry research group. Niki Hughes provided substantial assistance especially with calibrations and great encouragement. I would also like to thank Jak Kearns, Pukar Mainali, Krystin Robinson, and Robert Nikirk for their help.
    [Show full text]