Item talk:Q50098

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         "abstract": "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.Professional Studies/ExperiencePhysical Science Technician:USGS Paleontology & Stratigraphy Branch (1988 \u2013 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 \u2013 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:Theprimary 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\u2019s 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 Fo",
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