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Geology of the Waynesboro East and Waynesboro West Quadrangles, Virginia

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Geology of the Waynesboro East and Waynesboro West Quadrangles, Virginia VIRGINIA DIVISION OF GEOLOGY AND MINERAL RESOURCES DIGITAL REPRINT OF GEOLOGY OF THE WAYNESBORO EAST AND WAYNESBORO WEST QUADRANGLES, VIRGINIA THOMAS M GATHRIGHT II, WILLIAM S. HENIKA, AND JOHN L. SULLIVAN III PUBLICATION 3 Adobe Acrobat® Reader® Adobe Acrobat Reader version 5.0 or later is required to view this document. To obtain a copy of this software from the Adobe® website visit http://www.adobe.com. Limitations on document use The purpose of the digital rendering of Geology of the Waynesboro East and Waynesboro West Quadrangles, Virginia by Thomas M. Gathright II, William S. Henika, and John L. Sullivan III is to make accessible an out of print work. The document was scanned and optical character recognition (OCR) performed. However, all text generated by the OCR process has not been checked for accuracy. The original scan is the background for the document. Therefore, pages may read and print correctly, but “cut and paste” procedures may produce text which does not match the text shown by the image (page) being viewed. Bookmarks Bookmarks should be enabled when the document opens. If bookmarks are not visible, in Acrobat Reader 5.0: On the main menu select Window, Bookmarks or press the F5 key A check mark will appear to show the bookmark pane is viewable. Virginia Department of Mines, Minerals and Energy Division of Geology and Mineral Resources 900 Natural Resources Drive, Suite 500 Charlottesville, VA 22903 VlRGlNlA DIVISION OF MlNERAL RESOURCES PUBLICATION 3 GEOLOGY OF THE WAYNESBORO EAST \ AND WAYNESBORO WEST QUADRANGLES, VIRGINIA THOMAS M GATHRIGHT II, WILLIAM S. HENIKA, AND JOHN L. SULLIVAN Ill COMMONWEALTH OF VIRGINIA DEPARTMENT OF CONSERVATION AND ECONOMIC DEVELOPMENT DIVISION OF MINERAL RESOURCES James L. Calver, Commissioner of Mineral Resources and State Geologist CHARLOTTESVILLE, VIRGINIA f 977 VIRGINIA DIVISION OF MINERAL RESOURCES PUBLICATION 3 GEOLOGY OF THE WAYNESBORO EAST AND WAYNESBORO WEST QUADRANGLES, VIRGINIA THOMAS M. GATHRIGHT II, WILLIAM S. HENIKA, AND JOHN 1. SULLIVAN Ill COMMONWEALTH OF VIRGINIA DEPARTMENT OF CONSERVATION AND ECONOMIC DEVELOPMENT DIVISION OF MINERAL RESOURCES James L. Calves, Commiss~onerof Minerat Resources and State Geologist CHARLOTTESVILLE, VIRGINIA 7 977 COMMONWEALTHOF VIRGINIA DEPARTMENTOF PURCHASES AND SUPPLY RICHMOND 1977 Portions of this publication may be quoted if credit is given to the Virginia Division of Mineral Resources. It is recommended that refer- ence to this report be made in the following form: Gathright, T. M., 11, Henika, W. S., and Sullivan, 3. L., 111, 1977, Geology of the Waynesboro East and Waynesboro West quadran- gles, Virginia: Virginia Division of Mineral Resources Publication 3, 53 p. DEPARTMENT OF CONSERVATION AND ECONOMIC DEVELOPMENT Richmond, Virginia MARVIN M. SUTHERCAND,Director JERALD F. MOORE,Deputy Director BOARD FRED W. WALKER,Ashland. Chairman J. H. SOFINSON. West Point, Vice Chairman D. HENRYALMOND, Richmond A. R. DUNNING,MiIlwood ARTHURP. FLIPPO,Doswell ADOLPHU, HONKALA,Richmond MILDREDLAYNE, Williamsburg FREDERICS. REED, Manakin-Sabot COLLINSSNYDER, Accornac WILLIAM H. STANHAGEN,Falls Church SHERMANWALLACE, Cfeveland E. FLOYDYATES. Powhacan CONTENTS Abstract ................................................................................. 1 Introduction ...............................................................................1 Stratigraphy ...............................................................................2 Precambrianrocks ...................................................................... 2 LovingstonFormation ................................................................5 PedIarF~tmation.................................................................... 5 Precambrian(?) rocks ....................................................................7 SwiftRunFormation ................................................................. 7 CatoctinFormation ..................................................................7 Epidote-amphiboiite dikes and sills ......................................................7 CambrianSystem .......................................................................10 WevertonFomatian .................................................................10 HarpersForrnation ..................................................................10 Antietam Formation .................................................................1I ShadyFomation ....................................................................12 WaynesboroFomation ............................................................... 12 ElbrookForrnation ..................................................................13 Conoco~hea~ueFormatian............................................................. 14 OrdovicianSystem ......................................................................15 Chepultepee Formation ...............................................................15 BeekmantownFormation ..............................................................16 NeurMarketLimestone ...............................................................16 LincaInshire Formation ..............................................................-17 Martinsburg Formation ..............................................................-18 TriassicSystem ..............................................q...........e.............. 21 Diabasedikes ...................................................................... 21 QuaternarySystem .................................................................... c.22 Terrace and alluvial-fan deposits ........................................................ 22 Talusdeposits .................................................................... '.23 Uplandalluvium .................................................................... 23 Lowlandallwjum ................................................................... 24 Structure .................................................................................% Folds ................................................................................24 RockfishValleyfault .....................................................................25 Fracturezone ..........................................................................27 Vertical and high-angle faults ..............................................................27 Joints ................................................................................27 Economtcgeolo~........................................................................... 28 Limestoneanddolomite ..................................................................23 High-calciumlimestone................................................................... 29 High-magnesium dolomite ................................................................ 29 Crushedandbrokenstone .................................................................29 aay .................................................................................29 Sandandgravel ........................................................................29 Ironandmanganese .....................................................................29 Hydrogeology. by Richard H . DeKay ...........................................................29 Igneous and metamorphic rocks ...........................................................30 Clasticrocks ..........................................................................31 Carbonaterocks .......................................................................32 Environmental geology ......................................................................35 Unit1 ...............................................................................35 Unit2 ...............................................................................36 Unit3 ...............................................................................36 Unit4 .......................................................*.......................37 Unit5 ...............................................................................37 Unit6 ...............................................................................37 Unit7 ...............................................................................37 Unit8 ...............................................................................38 Unit9 ...............................................................................39 Unit10 ..............................................................................39 Unit11 ..............................................................................39 Unit12 ..............................................................................39 Unit13 ..............................................................................40 Unit14 ..............................................................................40 Modifiedland ..........................................................................40 RockfaIls ............................................................................40 Karstland ............................................................................40 References ...............................................................................41 Glossary .................................................................................42 Appendix: Roadlog .......................................................................43 Index ...................................................................................52 ILLUSTRATIONS PLATE 3 . Geologic map of the Waynesboro
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