Randall C. Orndorff
Florence Bascom Geoscience Center, Reston, VA
Activity
2025
-
PRELIMINARY BEDROCK GEOLOGIC MAP OF NEW ENGLAND, USA, ROUND 2
42 Mapping in the Geosciences: Processes and ProductsSunday, 30 March 20258:30 AM - 2:30 PMNorth Great Hall
-
THE NEW ENGLAND CONODONT DATA REPOSITORY: A DIGITAL ARCHIVE OF CONODONT BIOSTRATIGRAPHIC DATA AND COLOR ALTERATION INDEX VALUES
42 Mapping in the Geosciences: Processes and ProductsSunday, 30 March 20258:30 AM - 2:30 PMNorth Great Hall
-
ORDOVICIAN CONODONT BIOSTRATIGRAPHY OF THE BETTS QUARRY, HARRISONBURG, VA
7 Undergraduate Research I (Posters)Thursday, 20 March 20258:00 AM - 12:00 PMShenandoah ABC
2024
-
NEW GEOLOGIC MAPPING IN MONROE COUNTY, WEST VIRGINIA: ORDOVICIAN TO MISSISSIPPIAN STRATIGRAPHY AND THE STRUCTURAL FRONT TRANSITION FROM THE SOUTHERN TO CENTRAL APPALACHIANS
32 Interstate Collaboration in the Southeast US–State Geological Surveys Working Towards Stratigraphic and Lithologic Equivalencies to Address Mapping Discrepancies More Effectively ITuesday, 16 April 20248:00 AM - 12:00 PMTop of the Plaza
-
PRELIMINARY BEDROCK GEOLOGIC MAP OF NEW ENGLAND, USA
24 Mapping in the Geosciences: Processes and Products (Posters)Monday, 18 March 20249:00 AM - 1:00 PMArmory Ballroom
-
BEDROCK GEOLOGIC MAP OF THE PORT HENRY QUADRANGLE, ESSEX COUNTY, NEW YORK AND ADDISON COUNTY, VERMONT
24 Mapping in the Geosciences: Processes and Products (Posters)Monday, 18 March 20249:00 AM - 1:00 PMArmory Ballroom
2023
-
A LITHOSTRATIGRAPHIC, BIOSTRATIGRAPHIC, AND PETROGRAPHIC ANALYSIS OF MIDDLE AND UPPER ORDOVICIAN STRATA IN THE SOUTHERN CHAMPLAIN VALLEY, NEW YORK, AND A PRELIMINARY 1:24,000 SCALE GEOLOGIC MAP OF THE PORT HENRY QUADRANGLE
37 Mapping in the Geosciences: Processes and Products (Posters)Saturday, 18 March 20231:30 PM - 5:30 PMGrand Ballroom A–D
-
ESTABLISHMENT OF A MODERN 1:24,000-SCALE BEDROCK GEOLOGIC MAP FRAMEWORK FOR THE ADIRONDACK HIGHLANDS AND CHAMPLAIN VALLEY, NEW YORK AND VERMONT
37 Mapping in the Geosciences: Processes and Products (Posters)Saturday, 18 March 20231:30 PM - 5:30 PMGrand Ballroom A–D
2022
-
CORRELATION CHARTS AS IMPORTANT TOOLS FOR HARMONIZATION OF GEOLOGIC MAPS: AN EXAMPLE FROM THE ORDOVICIAN OF THE APPALACHIANS
249 D33. Recent Advances in StratigraphyWednesday, 12 October 20221:30 PM - 5:30 PM406
-
A LITHOSTRATIGRAPHIC, BIOSTRATIGRAPHIC, AND PETROGRAPHIC ANALYSIS OF MIDDLE AND UPPER ORDOVICIAN STRATA IN THE SOUTHERN CHAMPLAIN VALLEY, NEW YORK: PRELIMINARY CORRELATION OF STRATIGRAPHY AND NOMENCLATURE IN THE CENTRAL AND NORTHERN APPALACHIANS
35 Correlating the Ordovician: Honoring the Career and Contributions of Stig M. Bergström (Posters)Friday, 8 April 20228:00 AM - 12:00 PMJunior Ballroom B
-
CAMBRIAN-ORDOVICIAN STRATIGRAPHY OF THE SOUTHERN CHAMPLAIN VALLEY, NEW YORK AND VERMONT: RECONCILING GEOLOGIC MAPPING OF FORMATIONS
43 Implementing the U.S. Geological Survey National Cooperative Geologic Mapping Program’s U.S. GeoFramework Initiative: Constructing a Seamless, National 2D/3D Geologic Framework Model of the U.S.Tuesday, 22 March 20228:00 AM - 12:00 PMCommonwealth Salon 1
2020
-
THE GEMS DATABASE SCHEMA FOR GEOLOGIC MAPS – ENSURING COMPLIANCE WITH THE STANDARD
T234 Developments in Geological MappingThursday, 29 October 20205:30 PM - 8:00 PMMeeting Rooms
-
A LITHOSTRATIGRAPHIC, BIOSTRATIGRAPHIC, AND PETROGRAPHIC ANALYSIS OF THE MIDDLE AND UPPER ORDOVICIAN STRATA IN GAP MILLS, WEST VIRGINIA TO BETTER UNDERSTAND THE STRATIGRAPHY AND NOMENCLATURE IN A STRUCTURALLY COMPLEX REGION
17 Stratigraphic Problems and Solutions in the Appalachian BasinFriday, 20 March 20203:25 PM - 5:30 PMLake Audubon
2019
-
SORTING STRATIGRAPHIC SPAGHETTI IN THE CONTEXT OF GEOLOGIC MAPPING: EXAMPLES FROM MAPPING IN THE MISSISSIPPIAN GREENBRIER GROUP AND BLUEFIELD FORMATION OF THE CENTRAL APPALACHIAN BASIN
T28 Geologic Maps and Their Derivatives (Posters)Sunday, 22 September 20199:00 AM - 5:30 PMHall AB, North Building
2016
-
GEOLOGIC CONTEXT OF LARGE KARST SPRINGS AND CAVES IN THE OZARK NATIONAL SCENIC RIVERWAYS (ONSR), SOUTHERN MISSOURI
T96 A Centennial Celebration of Geology and Hydrology in the National Parks: Research, Mapping, and Resource Management IMonday, 26 September 20168:00 AM - 12:00 PMMile High Ballroom 4D
2015
-
SMALL-SCALE MAPS BRING THE WORLD TOGETHER – THE COMMISSION FOR THE GEOLOGICAL MAP OF THE WORLD (CGMW)
T157 Entering Our Third Century in the Footsteps of William Smith: Status and Future of Geological MappingMonday, 2 November 20151:30 PM - 5:30 PMRoom 336
-
ANITA HARRIS – A CAREER OF SHINING LIGHT ON SUSPECT TERRAINS
T96 Conodonts from Black Shales and Other Rocks: In Honor of Anita G. HarrisMonday, 2 November 20158:00 AM - 12:00 PMRoom 316
-
U.S. GEOLOGICAL SURVEY GEOLOGIC MAPPING IN THE OZARK NATIONAL SCENIC RIVERWAYS AREA, SOUTHEASTERN MISSOURI
T37 Geology and Hydrology in the National Parks: Research, Mapping, and Resource Management (Posters)Sunday, 1 November 20159:00 AM - 5:30 PMExhibit Hall
2014
-
KEEPING YOUR EYE ON THE PRIZE - DIGITAL BEDROCK GEOLOGIC MAPPING TECHNIQUES IN THE EASTERN REGION OF THE USGS
34 Embracing Digital Technologies and the Geoweb: The Changing Philosophies and Practices of Geologic Mapping IIMonday, 24 March 20148:00 AM - 12:00 PMCommonwealth Salon 4
2012
-
CONSEQUENCES OF A CHANGE TO THE GEOLOGIC TIMESCALE – DOES THE INCREASED DURATION OF THE QUATERNARY PERIOD AFFECT THE GEOSCIENCES?
T132 Geologic Timescale—Current Status, Future Enhancement, and ApplicationsMonday, 5 November 20121:30 PM - 5:30 PM203A
-
USING THE NATIONAL GEOLOGIC MAP DATABASE AS A RESOURCE FOR GEOLOGIC MAPPING
T96 Geologic Maps, Digital Geologic Maps, and Derivatives from Geologic and Geophysical Maps (Posters)Monday, 5 November 20129:00 AM - 6:00 PMHall B
2011
-
THE NATIONAL GEOLOGIC MAP DATABASE PROJECT'S ADVENTURES IN MANAGING OLD FOSSILS AND GEOLOGIC NAMES
223 Geoscience Information/Communication: Printed Past, Digital Future—We Hold the KeyWednesday, 12 October 20118:00 AM - 12:00 PMRoom 101DE
2010
-
GEOLOGIC TRANSECTS OF NATIONAL PARKS: THE CHESAPEAKE AND OHIO CANAL NATIONAL HISTORICAL PARK AS A TEMPLATE FOR THE BLUE RIDGE PARKWAY AND APPALACHIAN NATIONAL SCENIC TRAIL
T239 Geology in the National Parks: Research, Mapping, Education, and Outreach IWednesday, 3 November 20108:00 AM - 12:00 PMRoom 405
-
GONE OR JUST FORGOTTEN? — A RECOMMENDATION TO RECOGNIZE THE TERTIARY AS A FORMAL PERIOD/SYSTEM OF THE CENOZOIC
T96 Stratigraphic Standards: Where Have They Gone, What Should They Do, Where Should They Go?Monday, 1 November 20108:00 AM - 12:00 PMRoom 607
-
MORE THAN A DECADE OF U.S. GEOLOGICAL SURVEY GEOLOGIC MAPPING IN THE OZARK NATIONAL SCENIC RIVERWAYS AREA, SOUTHEASTERN MISSOURI
21 Geology of the Ozark PlateausMonday, 12 April 20103:30 PM - 5:15 PMCompton Ferry
2008
-
GEOLOGIC MAP AND GEOCHRONOLOGY OF THE FREDERICK 30' X 60' QUADRANGLE, MARYLAND, VIRGINIA, AND WEST VIRGINIA
9 Geologic Maps, Digital Geologic Maps, and Derivatives from Geologic Maps (Posters)Thursday, 10 April 20088:00 AM - 5:30 PM
2007
-
CONSISTENT STRATIGRAPHIC NOMENCLATURE IN GEOSCIENCE PUBLICATIONS—THE ROLE OF THE U.S. GEOLOGICAL SURVEY GEOLOGIC NAMES COMMITTEE
T21 Challenges in Geoscience Publishing: The Use of NomenclatureSunday, 28 October 20078:00 AM - 12:00 PM
2004
-
INTERDISCIPLINARY COOPERATIVE GEOLOGIC MAPPING AND GROUND-WATER RESOURCE ANALYSIS OF FREDERICK COUNTY, VIRGINIA BY THE U.S. GEOLOGICAL SURVEY
T249 Geological Mapping: Providing for Successful Water and Land Resource Planning (Posters)Wednesday, 10 November 20041:30 PM - 5:30 PM
2003
-
THE ROLE OF SANDSTONE IN THE DEVELOPMENT OF AN OZARK KARST SYSTEM, SOUTHEASTERN MISSOURI
T14 Karst Hydrology and Geomorphology in North America Over the Past Half Century I: In Honor of Derek Ford and William WhiteSunday, 2 November 20038:00 AM - 12:00 PM
-
THE U.S. NATIONAL KARST MAP PROJECT
T14 Karst Hydrology and Geomorphology in North America Over the Past Half Century I: In Honor of Derek Ford and William WhiteSunday, 2 November 20038:00 AM - 12:00 PM
Date Unknown
-
GEOLOGY OF THE NORTH MOUNTAIN FAULT ZONE OF VIRGINIA—CONSISTENT DEVELOPMENT IN A CHAOTIC REGIME
39 Geologic Maps, Digital Geologic Maps, and Derivatives from Geologic Maps (Posters)
-
MULTIDISCIPLINARY STUDIES OF GROUND-WATER AVAILABILITY IN A KARST AQUIFER SYSTEM, LEETOWN SCIENCE CENTER, WEST VIRGINIA
14 The Value of Geologic Maps for Land and Water Resource Management—Examples from National Cooperative Geologic Mapping Program (FEDMAP, STATEMAP, and EDMAP) (Posters)
-
GEOLOGIC MAPPING IN THE OZARK NATIONAL SCENIC RIVERWAYS, MISSOURI, AND VICINITY: U.S. GEOLOGICAL SURVEY AND NATIONAL PARK SERVICE COOPERATION
T58 Geology in the National Parks: Research, Mapping, and Resource Management (Posters)
-
GEOLOGIC MAPPING AND FRAMEWORK STUDIES APPLIED TO FEDERAL LAND-MANAGEMENT ISSUES IN THE OZARKS OF MISSOURI
154 Quaternary Geology/Geomorphology (Posters) II: Landscape Processes and Histories
-
STRUCTURAL CONTROL OF SPRING LOCATIONS IN THE NORTHERN SHENANDOAH VALLEY, VIRGINIA AND WEST VIRGINIA: INTERPRETATION OF GEOLOGIC CONTROLS ON GROUND-WATER FLOW PATHS IN FOLDED AND FAULTED CARBONATE ROCKS
39 Geologic Maps, Digital Geologic Maps, and Derivatives from Geologic Maps (Posters)
-
GEOLOGIC MAPS OF THE NATIONAL CAPITAL REGION FROM FEDMAP
14 The Value of Geologic Maps for Land and Water Resource Management—Examples from National Cooperative Geologic Mapping Program (FEDMAP, STATEMAP, and EDMAP) (Posters)