Florence Bascom Geoscience Center

Publications

Filter Total Items: 348
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Year Published: 2019

Quaternary eolian sediments and Carolina Bays of the U.S. Atlantic Coastal Plain province

Under modern conditions, the Atlantic Coastal Plain province of the eastern United States is not very conducive to widespread eolian sediment mobilization because of a humid and mesothermal climate, relatively low mean surface wind velocities (~1–3 m/sec), and relatively dense vegetation. LiDAR data, however, have revealed the presence of...

Swezey, Christopher S.
Swezey, C.S., 2019, Quaternary eolian sediments and Carolina Bays of the U.S. Atlantic Coastal Plain province, in: Geologic Mapping Forum 2019 Abstracts (H.L. Thorleifson, ed.): Minnesota Geological Survey Open File Report OFR-19-1, p. 88-89.

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Year Published: 2019

Geology of the Mineral and Lake Anna West Quadrangles, Virginia

This map product is a cooperator series publication and, as such, does not have a specific abstract. Geologic mapping for this map product was completed between 2014 and 2017, with most of the field work occurring between January 2016 and May 2017. Numerous foot traverses were completed along creeks and roads throughout the field area; the shore...

Carter, Mark W.; Burton, William C.; McAleer, Ryan; DiGiacomo-Cohen, Mary; Sauer, R. Tyler

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Year Published: 2019

Syn-collisional exhumation of hot middle crust in the Adirondack Mountains (New York, USA): Implications for extensional orogenesis in the southern Grenville province

Extensional deformation in the lower to middle continental crust is increasingly recognized and shown to have significant impact on crustal architecture, magma emplacement, fluid flow, and ore deposits. Application of the concept of extensional strain to ancient orogenic systems, like the Grenville province of eastern North America, has helped...

Regan, Sean; Walsh, Gregory J.; Williams, Michael L.; Chiarenzelli, Jeffrey R.; Toft, Megan E.; McAleer, Ryan

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Year Published: 2019

Geology and biostratigraphy of the Upper Floridan aquifer in the greater Savannah region, Georgia and South Carolina

The Upper Floridan aquifer (UFA) of South Carolina, Georgia, Alabama, Mississippi, and Florida has been considered a regionally continuous stratigraphic sequence of Eocene to Miocene carbonate strata, with documented unconformities based on lithology and biostratigraphy.  As part of an investigation of the regional subsurface geologic...

Self-Trail, Jean M.; Parker, Mercer; Haynes, John T.; Schultz, Arthur P.; Huddleston, Paul. F.

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Year Published: 2019

Geology of the Hardeeville NW Quadrangle and parts of the Brighton and Pineland Quadrangles, Jasper County, South Carolina

IntroductionThis publication portrays the geology of the Hardeeville NW quadrangle and parts of the Brighton and Pineland quadrangles that are within Jasper County, South Carolina. The study area is located in the Atlantic Coastal Plain province, approximately 50 to 70 kilometers (km) inland from the coast. The data are compiled from geological...

Swezey, Christopher S.; Schultz, Arthur P.; Doar, William R.; Garrity, Christopher P.; Bernhardt, Christopher E.; Crider, , E. Allen; Edwards, Lucy E.; McGeehin, John P.
Swezey, C.S., Schultz, A.P., Doar, W.R., III, Garrity, C.P., Bernhardt, C.E., Crider, E.A., Jr., Edwards, L.E., and McGeehin, J.P., 2019, Geology of the Hardeeville NW quadrangle and parts of the Brighton and Pineland quadrangles, Jasper County, South Carolina: U.S. Geological Survey Scientific Investigations Map 3424, 2 sheets, scale 1:24,000, https://doi.org/10.3133/sim3424.

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Year Published: 2019

Mid-latitude net precipitation decreased with Arctic warming during the Holocene

The latitudinal temperature gradient between the Equator and the poles influences atmospheric stability, the strength of the jet stream and extratropical cyclones. Recent global warming is weakening the annual surface gradient in the Northern Hemisphere by preferentially warming the high latitudes; however, the implications of these changes for...

Cody Routson; Nicholas McKay; Darrell Kaufman; Hugues Goosse; Bryan Shuman; Rodysill, Jessica; Toby Ault

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Year Published: 2019

100-kyr paced climate change in the Pliocene warm period, Southwest Pacific

The mid to late Pliocene (~4.2-2.8 Ma.) represents an experiment in climate sensitivity to orbital pacing in which nearly all continental ice was confined to the Southern Hemisphere. Most studies have emphasized the dominant role of obliquity in determining changes in ice volume and temperature at this time, although most records come from the...

Caballero-Gill, Rocio; Herbert, Timothy D.; Dowsett, Harry

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Year Published: 2019

North American Commission on Stratigraphic Nomenclature Note 69 – Application for addition of subseries/subepoch to the North American Stratigraphic Code

Consistency in stratigraphic nomenclature enables communication among scientists both regionally and globally, thus requiring the North American Stratigraphic Code, as presented by the North American Commission on Stratigraphic Nomenclature, to follow international convention. The ratification of three subseries of the Holocene by the...

Aubry, Marie-Pierre; Fluegeman, Richard H.; Edwards, Lucy E.; Pratt, Brian R.; Brett, Carlton E.

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Year Published: 2019

An assessment of plant species differences on cellulose oxygen isotopes from two Kenai Peninsula, Alaska peatlands: Implications for hydroclimatic reconstructions

Peat cores are valuable archives of past environmental change because they accumulate plant organic matter over millennia. While studies have primarily focused on physical, ecological, and some biogeochemical proxies, cores from peatlands have increasingly been used to interpret hydroclimatic change using stable isotope analyses of cellulose...

Jones, Miriam; Anderson, Lesleigh; Keller, Katherine; Nash, Bailey; Littell, Virginia; Wooller, Matthew J.; Jolley, Chelsea

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Year Published: 2019

Lithologies, ages, and provenance of clasts in the Ordovician Fincastle Conglomerate, Botetourt County, Virginia, USA

The Fincastle Conglomerate is an Ordovician polymictic, poorly sorted, matrix- and clast-supported cobble to boulder-rich conglomerate located just north of Fincastle, Botetourt County, VA. At least nine other cobble and boulder conglomerates are located in a similar stratigraphic position from Virginia to Georgia west of the Blue Ridge structural...

Belkin, Harvey E.; Repetski, John E.; Dulong, Frank T.; Hickling, Nelson L.

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Year Published: 2019

The mighty Susquehanna—extreme floods in Eastern North America during the past two millennia

The hazards posed by infrequent major floods to communities along the Susquehanna River and the ecological health of Chesapeake Bay remain largely unconstrained due to the short length of streamgage records. Here we develop a history of high‐flow events on the Susquehanna River during the late Holocene from flood deposits contained in MD99‐2209, a...

Toomey, Michael; Cantwell, Meagan; Colman, Steven; Cronin, Thomas M.; Donnelly, Jeffrey P.; Giosan, Liviu; Heil, Clifford; Korty, Robert L.; Marot, Marci E.; Willard, Debra A.

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Year Published: 2019

Paleocene–Eocene Thermal Maximum prolonged by fossil carbon oxidation

A hallmark of the rapid and massive release of carbon during the Palaeocene–Eocene Thermal Maximum is the global negative carbon isotope excursion. The delayed recovery of the carbon isotope excursion, however, indicates that CO2 inputs continued well after the initial rapid onset, although there is no consensus about the source of this...

Lyons, Shelby L.; Baczynski, Allison A.; Babila, Tali L.; Bralower, Timothy J.; Hajek, Elizabeth A.; Kump, Lee R.; Polites, Ellen G.; Self-Trail, Jean M.; Trampush, Sheila M.; Vornlocher, Jamie R.; Zachos, James C.; Freeman, Katherine H.