David J Weary

Biography

David Weary earned a BS degree in geology from George Mason Univ. in 1982; MS in geology from Virginia Tech in 1988. Started at the USGS in 1988 as a PST for the Paleontology and Stratigraphy Branch, specializing in conodont sample processing and biostratigraphy. In 1996 David joined the Eastern Earth Surface Processes Team. Since 1998 David has worked as a geologic mapper, specializing in geohydrologic framework studies in karstic rocks. Field areas included: Ozarks of southern MO; Saipan, Northern Mariana Islands; and the Shenandoah Valley area of VA and WV. David has also worked in the southern Great Basin and the Black Hills. Since 2003 David has served as a research geologist and Project Chief of the KARST Project out of the Eastern Geology and Paleoclimate Science Center, Reston, VA. David also represented the USGS on the Board of directors of the National Cave and Karst Research Institute From 2009 to 2018.

 

Physical Science Technician:  USGS Paleontology & Stratigraphy Branch (1988 – 1997). PST. Conodont biostratigraphic and thermal alteration research. Worked for Anita Harris and John Repetski.

Associate Instructor: Paleontology and Geology, Northern Virginia Community College (1989 – 1991).

Project Geologist:  Midcontinent Karst Systems and Geologic Mapping (1997 - 2003) geologic mapping and hydrogeologic studies in the area of the Ozark National Scenic Riverways park (NPS), Missouri. Developed early digital mapping and GIS/GPS techniques.

 

Task 1, Geologic mapping in VA and WV: The primary goal is to produce 1:24,000 & 1:100,000 scale geologic maps of selected areas in the Shenandoah Valley of VA and WV. Work in cooperation with the VA and WV, USGS WSC’s and with local and state governments to develop a better understanding of the role of the bedrock geology in guiding groundwater flow characteristics.

Task 2, U.S. National Karst Map: Our goal is to produce a new, GIS-based national karst map. This map will serve both as a small-scale graphic representation of the extent of karstic rocks in the United States (National Atlas) and as GIS data that will be linked to more detailed, site-specific databases. This work involves interaction with state geological surveys, the National Cave and Karst Research Institute (NCKRI), and karst experts from academia and the National Speleological Society.

Task 3, Geologic mapping in the Ozarks of MO: geologic mapping in areas of Paleozoic carbonate and clastic rocks and Mesoproterozoic volcanic rocks at scales of 1:24,000 and 1:100,000. Investigation of geologic controls on groundwater flow, karstification, and speleogenesis in the Ozark Aquifer. This work addresses two priority needs:  1) Developing a hydrogeologic framework for the St. Fraincois and Ozark aquifers in southern MO and potential impacts on groundwater quality by proposed base-metal mining in the Mark Twain National Forest, 2) Completion of a geologic inventory of the entire Ozark National Scenic Riverways park (NPS). Awarded a FY2009 USGS Geology Venture Capital Fund award for:  “Three-dimensional geophysical prospecting for a major spring conduit in the Ozark karst system using Audio-magnetotelluric (AMT) soundings and ground penetrating radar: a proof of concept study (Co-P.I., Herbert Pierce).

Task 4, Geologic map of Saipan, Commonwealth of Northern Marianna Islands: The goal of this task is to produce a new, more detailed digital geologic map and structural framework (previous mapping by Cloud and others, 1956) Field work completed in 2007, OFR map published 2011 (Weary and Burton, 2011), spin-off papers on stratigraphic revisions and structural interpretations are ongoing.

 

 

 

Publications:

Weary, D.J., 1988, Dinoflagellate paleoecology and biostratigraphy of the Middle Eocene Tallahatta and Lisbon Formations from the Baldwin County, Alabama Core:  Masters Thesis, Virginia Polytechnic Institute and State University, 229 pp., 17 pl., 9 figs.

 

Repetski, J.E., and Weary, D.J., 1992, Conodont studies in the New Madrid Seismic Zone, In National Earthquake Hazards Reduction Program, Summaries of Technical Reports Volume XXXIII:  U.S. Geological Survey, Open-File Report 92-258, p. 573-577.

 

Armstrong, A.K., Stamm, R.G., Mamet, B.L., Kottlowski, F.E., Dutro, J.T., and Weary, D.J., 1994, Facies and age of the Oso Ridge Member (New), Abo Formation, Zuni Mountains, New Mexico:  New Mexico Geology, v. 16, no. 2, p. 26-30.

 

Harris A.G., Stamm, N.R., Weary, D.J., Repetski, J.E., Stamm, R.G., and Parker, R.A., 1994, Conodont color alteration index map and conodont-based age determinations for the Winchester 30'X60' quadrangle and adjacent area, Virginia, West Virginia and Maryland:  U.S. Geological Survey Miscellaneous Field Studies MF-2239, 2 sheets, 42 p. table, 28 p. text, scale 1:100,000.

 

Weary, D.J., and Harris, A.G., 1994, Early Frasnian (Late Devonian) conodonts from the Harrell Shale, western foreland fold-and-thrust belt, West Virginia, Maryland, and Pennsylvania:  Courier Forschunginstitut Senckenberg, v. 168, p. 195-225.

 

Harris, A.G., Weary, D.J., and Repetski, J.E., 1995, Conodont distribution in uppermost Ordovician through lower Devonian rocks, DuPont geohydrological survey well, near Waverly, Humphries County, Tennessee, in Broadhead, T.W., and Gibson, M.A., eds., Upper Silurian - Lower Devonian Biotas and Paleoenvironments of the Western Tennessee Shelf:  University of Tennessee Department of Geological Sciences Studies in Geology 25, p. 23-27.

 

Harris, A.G., Repetski, J.E., Stamm, N.J., and Weary, D.J., 1995, Conodont age and CAI data from New Jersey:  U.S. Geological Survey Open File Report 95-557, 30pp.

 

McDowell, R.C., Orndorff, R.C., Harrison, R.W., Weems, R.E., Weary, D.J., Repetski, J.E, Imes, J.L., and Kleeschulte, M.J., 1998, New geologic mapping in the Ozarks of southern Missouri:  an approach to understanding the hydrologic framework:  IAH XXVIII Congress/AIH Annual Meeting October, 1998. Gambling with Groundwater--Physical, Chemical, and Biological Aspects of Aquifer-Stream Relations:  Brahana and others, (eds.) p. 527-531.

 

Orndorff, R.C., Harrison, R.W., and Weary, D.J. 1999, Geologic Map of the Eminence Quadrangle, Shannon County, Missouri: USGS Miscellaneous Investigation Series Map I-2653. http://pubs.usgs.gov/i-maps//i-2653/index.html

 

Orndorff, R.C., Sebela, S., Weary, D.J., McDowell, R.C., Harrison, R.W., and Weems, R.E., 1999, A Geologic Framework in Karst:  US Geological Survey Contributions to the Hydrogeology of the Ozarks of Missouri:  Hydrogeology and Engineering Geology of Sinkholes and Karst, Beck, Petit and Herring (eds.), Proceedings of the Seventh Multidisciplinary Conference on Sinkholes and the Engineering and Environmental Impacts of Karst, Harrisburg-Hershey, Pennsylvania, 10-14 April, 1999, p. 57-62.

 

Šebela, S., Orndorff, R.C., and Weary, D.J., 1999, Geological Controls in the Development of Caves in the South-Central Ozarks of Missouri, USA:  Acta Carsologica, v. 28 no. 17, p. 273-291.

 

Orndorff, R.C., Weary, D.J., and Lagueux, 2000, Geographic information systems analysis of geologic controls on the distribution of dolines in the Ozarks of south-central Missouri, USA:  8th International Karstological School, Classical Karst, Karst Research Institute ZRC SAZU, Postojna, Slovenia, June 2000,  Acta Carsologica SAZU 29/2, p. 161-175.

 

Weary, D.J., Ryder, R.T., and Nyahay, R., 2000, Thermal Maturity patterns (CAI and %Ro) in the Ordovician and Devonian rocks of the Appalachian basin in New York State:  U.S. Geological Survey Open File Report 00-496, 39 pp. http://pubs.usgs.gov/openfile/of00-496/index.html

 

Orndorff, R.C., Weary, D.J., and Sebela, S., 2001, Geologic framework of the Ozarks of south-central Missouri; contributions to a conceptual model of karst; U.S. Geological Survey Karst Interest Group; proceedings: U. S. Geological Survey, Report: WRI 01-4011, pp.18-24.

 

Orndorff, R.C.,  Epstein, J.C., Weary, D.J., and Harlow, G.E., 2001, Geologic aspects of karst in the Appalachians:  U.S. Geological Survey Appalachian Region Integrated Science Workshop Proceedings, Adams, D.B, Burke, K., Hemingway, B., Keay, J., and Yurewicz, M. (compilers), U.S. Geological Survey Open-File Report 01-406, p. 57.

 

Weary, D.J., and Orndorff, R.C., 2001, Physical controls on karst features in the Ozark plateaus of Missouri, U.S.A., as determined by multivartiate analyses in a geographic information system (GIS):  9th International Karstological School, Karst Research Institute ZRC SAZU, Postojna, Slovenia, June 2001,  Acta Carsologica SAZU 30/2, pp. 181-194.

 

Weary, D.J., Ryder, R.T., and Nyahay, R., 2001, Thermal Maturity Patterns in New York State using CAI and %Ro, Northeastern Geology and Environmental Sciences, v. 23, no. 4 p. 356-376.

 

Harrison, R.W, Orndorff, R.C., and Weary, D.J., 2002, Geology of the Stegall Mountain 7.5 minute quadrangle, Shannon and Carter Counties, south-central Missouri:  U.S. Geological Survey Geologic Investigation Series Map I-2767, scale 1:24,000, 1 sheet.

 

Orndorff, R.C., Weary, D.J., and Sebela, S., 2002, Geologic framework of the Ozarks of south-central Missouri; contributions to a conceptual model of karst:  Missouri Speleology, vol.42, no.1-2, pp.1-8, 2002.

 

Sebela, S., Orndorff, R.C., and Weary, D.J., 2002, Geologic controls in the development of caves in the south-central Ozarks of Missouri:  Missouri Speleology, vol.42, no.1-2, pp.9-20, 2002.

 

Orndorff, R.C., Weary, D.J., and Parker, R.A., 2003, Geologic map of the Winchester quadrangle, Frederick County, Virginia:  U.S. Geological Survey Open-File Report 03-461, scale 1:24,000, 1 CD ROM. http://pubs.usgs.gov/of/2003/of03-461/

 

Tobin, B.D., and Weary, D.J., 2004, Digital engineering aspects of karst map:  a GIS version of Davies, W.E., Simpson, J.H., Ohlmacher, G.C., Kirk, W.S., and Newton, E.G., 1984 Engineering aspects of karst:  U.S. Geological Survey, National Atlas of the United States:  U.S. Geological Survey Open-File Report 2004-1352. http://pubs.usgs.gov/of/2004/1352/

 

Weary, D.J., Harrison, R.W., Wright, M.R., Jacobson, R.B., Pavich, M.J., Mahan, S.A., and Wronkiewicz, D.J., 2004, Constraints on the geologic history of the karst system in southern Missouri, USA, provided by radiogenic, cosmogenic, and physical/chemical characteristics of doline fill:  Acta Carsologica SAZU 33/2, pp. 207-218.

 

Weary, D.J., and Schindler, J.S., 2004, Geologic map of the Van Buren South quadrangle, Carter County, Missouri:  U.S. Geological Survey Geologic Investigations Map I-2803, scale 1:24,000, 1 sheet.

 

Weary, D.J., and Weems, R. E., 2004, Geologic map of the Van Buren North quadrangle, Carter and Reynolds Counties, Missouri:  U.S. Geological Survey Geologic Investigation Series Map I-2802, scale 1:24,000, 1 sheet.

 

Harlow, G.E. Jr., Orndorff, R.C., Nelms, D.L., Weary, D.J., and Moberg, R.M., 2005, Hydrogeology and ground-water availability in the carbonate aquifer system of Frederick County, Virginia: U.S. Geological Survey, Scientific investigations Report, SIR 2005-5161, 37 p. http://pubs.water.usgs.gov/sir/2005/5161

 

McCoy, K.J., Podwysocki, M.H., Crider, E.A., and Weary, D.J., 2005, Fracture Trace Map and Single-well Aquifer Test Results in a Carbonate Aquifer in Berkeley County, West Virginia:  U.S. Geological Survey Open-File Report 2005-1040, scale 1:48,000,http://pubs.usgs.gov/of/2005/1040/.

 

McCoy, K.J., Podwysocki, M.H., Crider, E.A., and Weary, D.J., 2005, Fracture Trace Map and Single-well Aquifer Test Results in a Carbonate Aquifer in Jefferson County, West Virginia:  U.S. Geological Survey Open-File Report 2005-1407, scale 1:48,000,http://pubs.usgs.gov/of/2005/1407/.

 

Weary, D.J., 2005, An Appalachian regional karst map and progress towards a new national karst map:  Proceedings, U.S. Geological Survey Karst Interest Group, Rapid City, South Dakota, September 12-15, 2005, Scientific Investigations Report 2005-5160, p. 93-102. http://pubs.usgs.gov/sir/2005/5160/PDF/sir2005-5160part3A.pdf

 

Orndorff, R.C., Weary, D.J., and Harrison, R.W., 2006, The role of sandstone in the development of an Ozark karst system, south-central Missouri, in Harmon, R.S., and Wicks, C., eds., Perspectives on karst geomorphology, hydrology, and geochemistry--a tribute volume to Derek C. Ford and William B. White:  Geological Society of America Special Paper 404, p. 31-38.

 

Weary, D.J., Orndorff, R.C., and Aleman-Gonzalez, W., 2006, Geologic map of the Stephens City quadrangle, Clarke, Frederick, and Warren Counties, VA:  U.S. Geological Survey Open-File Report 2006-1173, scale 1:24,000. http://pubs.usgs.gov/of/2006/1173/.

 

Weary, D.J. and McDowell, R.C., 2006, Geologic map of the Big Spring quadrangle, Carter County, Missouri:  U.S. Geological Survey Scientific Investigations Map SIM-2804, scale 1:24,000. http://pubs.usgs.gov/sim/2006/2804/

 

Kozar, M.D., Weary, D.J., Paybins, K.S., and Pierce, H.A., 2007, Geohydrology and Simulation and Analysis of Ground-Water Flow of the Leetown Area, West Virginia:  U.S. Geological Survey Scientific Investigations Report 2006-5066, 70 p.

 

Kozar, M.D.,  McCoy, K.J.,  Weary, D.J.,  Field, M.S., Pierce, H.A., Schill, W.B.,  and Young, J.A.,  2007, Hydrogeology and Water Quality of the Leetown Area, West Virginia:  U.S. Geological Survey Open-File Report 2007–1358, 109 pages, six appendices (Published 2008)http://pubs.usgs.gov/of/2007/1358/pdf/ofr2007-1358.all.pdf

 

Repetski, J.E., Ryder, R.T., Weary, D.J., Harris, A.G., and Trippi, M.H., 2008, Thermal maturity patterns (CAI and %Ro) in Upper Ordovician and Devonian rocks of the Appalachian basin: A major revision of USGS Map I–917–E using new subsurface collections: U.S. Geological Survey Scientific Investigations Map 3006, one CD-ROM. Also available online at http://pubs.usgs.gov/sim/3006/.

 

Weary, D. J., 2008, Geologic map of the Piedmont Hollow quadrangle, Oregon County, Missouri:  U.S. Geological Survey Scientific Investigations Map, SIM-2979, scale 1:24,000. http://pubs.usgs.gov/sim/2979/

 

Weary, D.J., 2008, Preliminary map of potentially karstic carbonate rocks in the central and southern Appalachian states:  U.S. Geological Survey Open-File Report 2008-1154, scale 1:2,000,000. http://pubs.usgs.gov/of/2008/1154/

 

Weary, D.J., Doctor, D.H., Epstein, J.B., and Orndorff, R.C., 2008, Characterizing regional karst types under the framework of the new national karst map:  U.S. Geological Survey Karst Interest Group Proceedings, Bowling Green, Kentucky, May 27-29, 2008, USGS Scientific Investigations Report 2008-5023, p. 25-33.

 

Doctor, D.H., Weary, D.J.,  Epstein, J.B., and Orndorff, R.C., 2008, A Karst Aquifer Map for the United States—Is it possible?:  in Kuniasky, U.S. Geological Survey Karst Interest Group Proceedings, Bowling Green, Kentucky, May 27-29, 2008, U.S. Geological Survey, Scientific Investigations Report 2008-5023, p. 34-36.

 

Weary, D.J., 2008, Geologic map of the Cedar Grove Quadrangle, Dent and Shannon Counties, Missouri:  U.S. Geological Survey, Scientific Investigations Map SIM-2980, scale 1:24,000. http://geology.er.usgs.gov/eespteam/Karst/tasks/Ozarks/maps/cedar_grove....

 

Doctor, D.H. , Weary, D.J., Orndorff, Randall C., Harlow, George E., Jr., Kozar, Mark D., Nelms, David L. (2008) Bedrock structural controls on the occurrence of sinkholes and springs in the northern Great Valley karst, Virginia and West Virginia. Proceedings of the 11th Multidisciplinary Conference on Sinkholes and Engineering and Environmental Impacts of Karst, September 23-26, 2008, p. 12-22.

 

Gao, Yongli , and Weary, D.J. (2008) A Coceptual database model for spatial analysis and resource management in karst. Proceedings of the 11th Multidisciplinary Conference on Sinkholes and Engineering and Environmental Impacts of Karst, September 23-26, 2008, p. 131-145.

 

Repetski, J.E., Ryder, R.T., Weary, D.J., Harris, A.G, and Trippi, M.H., in 2008, Thermal maturity patterns (CAI and %Ro) in Upper Ordovician and Devonian rocks of the Appalachian basin:  A major revision of USGS Map I-917-E using new subsurface collections:  U.S. Geological Survey, Scientific Investigations Map 3006.

 

Kozar, M.D., and Weary, D.J., 2009, Hydrogeology and ground-water  flow in the Opequon Creek watershed area, Virginia and West Virginia: U.S. Geological Survey Scientific Investigations Report 2009-5153, 61 p. http://pubs.usgs.gov/sir/2009/5153/

 

Orndorff, R.C., and Weary, D.J., 2009, Geologic map of the Round Spring quadrangle, Shannon County, Missouri:  U.S. Geological Survey, Scientific Investigations Map 3073, scale 1:24,000. http://pubs.usgs.gov/sim/2009/3073/

 

Lowell, G.R., Harrison, R.W., Weary, D.J., Orndorff, R.C., Repetski, J.E., and Pierce, H.A., 2010, Rift-related volcanism and karst geohydrology of the southern Ozark dome, p. 99-158, in Evans, K.R., and Aber, J.S., eds., From Precambrian rift volcanoes to the Mississippian shelf margin: Geological Field Excursions in the Ozark Mountains: Geological Society of America Field Guide 17. doi: 10.1130/2010.0017(06)

 

Doctor, D.H., Orndorff, R.C., Parker, R.A., Weary, D.J., and Repetski, J.E., 2010, Geologic map of the White Hall quadrangle, Frederick County, Virginia, and Berkeley County, West Virginia: U.S. Geological Survey Open-File Report 2010–1265, 1 pl., scale 1:24,000, available only athttp://pubs.usgs.gov/of/2010/1265.

Weary, D.J., and Burton, W.C., 2011, Preliminary Geologic Map of the Island of Saipan, Commonwealth of the Northern Mariana Islands:  U.S. Geological Survey Open-file Report 2011-1234, scale 1:25,000.

 

Weary, D.J., and Orndorff, R.C., 2012, Geologic Map of the Alley Spring Quadrangle, Shannon County, Missouri:  U.S. Geological Survey Scientific Investigations Map 3161, scale 1:24,000. http://pubs.usgs.gov/sim/3161/