Florence Bascom Geoscience Center
Publications
Preliminary bedrock geologic map of the Lahore 7.5-minute quadrangle, Orange, Spotsylvania, and Louisa Counties, Virginia
IntroductionBedrock geologic mapping of the Lahore, Va., 7.5-minute quadrangle was completed as part of a broader project, undertaken jointly between the U.S. Geological Survey, the Virginia Division of Geology and Mineral Resources, and other Federal and State agencies to better understand the causative mechanisms of the magnitude-5.8 (M5.8)...
Burton, William C.
Cross section of the North Carolina coastal plain from Enfield through Cape Hatteras
IntroductionThe Atlantic Coastal Plain, the southeasternmost physiographic province in the United States, is underlain by strata that regionally dip gently eastward and gradually thicken toward the Atlantic Ocean basin. These strata, ranging in age from Middle Jurassic to Holocene, accumulated along the eastern margin of North America after the...
Weems, Robert E.; Self-Trail, Jean M.; Edwards, Lucy E.
Geochemistry and geophysics of iron oxide-apatite deposits and associated waste piles with implications for potential rare earth element resources from ore and historic mine waste in the eastern Adirondack Highlands, New York, USA
The iron oxide-apatite (IOA) deposits of the eastern Adirondack Highlands, New York, are historical high-grade magnetite mines that contain variable concentrations of rare earth element (REE)-bearing apatite crystals. The majority of the deposits are hosted within sodically altered Lyon Mountain granite gneiss, although some deposits occur within...
Taylor, Ryan; Shah, Anjana K.; Walsh, Gregory; Taylor, Cliff D. Measuring Bryozoa
No abstract available.
Foley, Kevin M.; Dowsett, Harry J. Interglacial paleoclimate in the Arctic
Marine Isotope Stage 11 from ~424 to 374 ka experienced peak interglacial warmth and highest global sea level ~410–400 ka. MIS 11 has received extensive study on the causes of its long duration and warmer than Holocene climate, which is anomalous in the last half million years. However, a major geographic gap in MIS 11 proxy records exists in the...
Cronin, Thomas M.; Keller, Katherine; Farmer, Jesse R.; Schaller, Morgan; O'Regan, Matt; Poirier, Robert K.; Coxall, Helen; Dwyer, Gary S.; Bauch, Henning; Kindstedt, Ingalise G.; Jakobsson, Martin; Marzen, R. E.; Santin, Emiliano
Detailed Lithologic Logs from Auger Holes in southern Charleston County, southwestern Dorchester County, and eastern Colleton County, South Carolina
The lithologic logs described in this open-file report are from holes augered in the South Carolina Low Country in parts of Charleston, Dorchester, and Colleton Counties from 1998 through 2010. Lithologic units described here include not only surficial Pleistocene units but also subsurface stratigraphic units ranging as far back in age as late...
Weems, Robert E.; Lewis, William C. La Niña-driven flooding in the Indo-Pacific warm pool during the past millennium
Extreme precipitation events are one of the most consequential components of climate change for society. The El Niño-Southern Oscillation (ENSO) is the dominant mode of precipitation variability in the tropics and causes severe flooding and drought in many socioeconomically vulnerable regions. It remains unclear how tropical rainfall extremes and...
Rodysill, Jessica; Russell, James M.; Vuille, Mathias; Dee, Sylvia; Lunghino, Brent D.; Bijaksana, Satria
Geologic map of the Ferncliff and Louisa quadrangles, Louisa, Fluvanna, and Goochland Counties, Virginia
The area encompassed by the geologic map of the Ferncliff and Louisa, Va., 7.5-minute quadrangles includes the hypothetical surface projection of the Quail fault, which is the subsurface fault that was responsible for the 2011 magnitude 5.8 (M5.8) Mineral, Va., earthquake. The mapping shows that the Quail fault appears to have reactivated the...
Burton, William C.; Harrison, Richard W.; Malenda, Helen F.; Pazzaglia, Frank J.; Crider, Ernest Allen Fossil tabulate corals reveal outcrops of Paleozoic sandstones in the Atlantic Coastal Plain Province, southeastern USA
The geologic history of the Southeastern United States of America is missing nearly 350-million-years of rocks, sediments, and fossils. This gap defines the Fall Line nonconformity where Upper Ordovician consolidated rocks are directly overlain by Upper Cretaceous unconsolidated sediments of the Atlantic Coastal Plain Province. Here we begin to...
Landmeyer, James E.; Tourneur, Francis; Denayer, Julien; Zapalski, Mikolaj K Holocene Sea-Level Variability from Chesapeake Bay Tidal Marshes
We reconstructed the last 10,000 years of Holocene relative sea-level rise (RSLR) from sediment core records in near Chesapeake Bay, eastern U.S.A., including new marsh records from the Potomac and Rappahannock Rivers, Virginia. Results show mean RSLR rates of 2.6 mm yr-1 from 10 to 8 kilo-annum (ka) due to combined final ice-sheet melting during...
Cronin, Thomas M.; Clevenger, Megan K.; Tibert, Neil E.; Prescott, Tammy; Toomey, Michael; Hubeny, J. Bradford; Abbott, Mark B.; Seidenstein, Julia; Whitworth, Hannah; Fisher, Samuel R; Wondolowski, Nick; Ruefer, Anna
Paleoliquefaction field reconnaissance in eastern North Carolina—Is there evidence for large magnitude earthquakes between the central Virginia seismic zone and Charleston seismic zone?
In June 2016, approximately 64 kilometers (km) of riverbank were examined along the Tar and Neuse Rivers near Tarboro and Kinston, North Carolina, for evidence of liquefaction-forming earthquakes. The study area is in the vicinity of the Grainger’s fault zone in eastern North Carolina. The Grainger’s fault zone is a fault zone in the inner Coastal...
Carter, Mark W.; McLaurin, Brett T. Mid-piacenzian of the north Atlantic Ocean
The Piacenzian Age (Pliocene) represents a past climate interval within which frequency and magnitude of environmental changes during a period of past global warmth can be analyzed, climate models can be tested, and results can be placed in a context to better prepare for future change. Here we focus on the North Atlantic region, incorporating new...
Dowsett, Harry J.; Robinson, Marci M.; Foley, Kevin M.; Herbert, Timothy D.; Otto-Bliesner, Bette L.; Spivey, Whittney