Florence Bascom Geoscience Center

Publications

Filter Total Items: 570
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Year Published: 2019

The impact of late Holocene land-use change, climate variability, and sea-level rise on carbon storage in tidal freshwater wetlands on the southeastern United States Coastal Plain

This study examines Holocene impacts of changes in climate, land use, and sea-level rise (SLR) on sediment accretion, carbon accumulation rates (CAR), and vegetation along a transect of tidal freshwater forested wetlands (TFFW) to oligohaline marsh along the Waccamaw River, South Carolina (4 sites) and along the Savannah River, Georgia (4 sites)....

Jones, Miriam; Bernhardt, Christopher E.; Krauss, K.W.; Noe, Gregory B.

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Year Published: 2019

The impact of late Holocene land-use change, climate variability, and sea-level rise on carbon storage in tidal freshwater wetlands on the southeastern United States Coastal Plain

This study examines Holocene impacts of changes in climate, land use, and sea-level rise (SLR) on sediment accretion, carbon accumulation rates (CAR), and vegetation along a transect of tidal freshwater forested wetlands (TFFW) to oligohaline marsh along the Waccamaw River, South Carolina (4 sites) and along the Savannah River, Georgia (4 sites)....

Jones, Miriam; Bernhardt, Christopher E.; Krauss, K.W.; Noe, Gregory B.

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Year Published: 2018

Surficial materials of Massachusetts—A 1:24,000-scale geologic map database

The surficial materials geologic map database defines the distribution of nonlithified earth materials at the land surface in the 189 7.5-minute, 1:24,000-scale quadrangles that cover the Commonwealth of Massachusetts (index map). Across the State, these materials range in thickness from a few feet to more than 500 feet (ft). In some places,...

Stone, Janet Radway; Stone, Byron D.; DiGiacomo-Cohen, Mary L.; Mabee, Stephen B.
Stone, J.R., Stone, B.D., DiGiacomo-Cohen, M.L., and Mabee, S.B., comps., 2018, Surficial materials of Massachusetts—A 1:24,000-scale geologic map database: U.S. Geological Survey Scientific Investigations Map 3402, 189 sheets, scale 1:24,000; index map, scale 1:250,000; 58-p. pamphlet; and geodatabase files, https://doi.org/10.3133/sim3402.

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Year Published: 2018

Surficial materials of Massachusetts—A 1:24,000-scale geologic map database

The surficial materials geologic map database defines the distribution of nonlithified earth materials at the land surface in the 189 7.5-minute, 1:24,000-scale quadrangles that cover the Commonwealth of Massachusetts (index map). Across the State, these materials range in thickness from a few feet to more than 500 feet (ft). In some places,...

Stone, Janet Radway; Stone, Byron D.; DiGiacomo-Cohen, Mary L.; Mabee, Stephen B.
Stone, J.R., Stone, B.D., DiGiacomo-Cohen, M.L., and Mabee, S.B., comps., 2018, Surficial materials of Massachusetts—A 1:24,000-scale geologic map database: U.S. Geological Survey Scientific Investigations Map 3402, 189 sheets, scale 1:24,000; index map, scale 1:250,000; 58-p. pamphlet; and geodatabase files, https://doi.org/10.3133/sim3402.

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Year Published: 2018

Ecological changes in the nannoplankton community across a shelf transect during the onset of the Paleocene-Eocene Thermal Maximum

Warming and other environmental changes during the Paleocene‐Eocene thermal maximum (PETM) led to profound shifts in the composition and structure of nannoplankton assemblages. Here we analyze the nature of these changes in expanded records from the Cambridge‐Dorchester and Mattawoman Creek‐Billingsley Road cores in Maryland. These cores comprise...

León y León, Isabel A.; Bralower, Timothy J.; Self-Trail, Jean M.

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Year Published: 2018

Ecological changes in the nannoplankton community across a shelf transect during the onset of the Paleocene-Eocene Thermal Maximum

Warming and other environmental changes during the Paleocene‐Eocene thermal maximum (PETM) led to profound shifts in the composition and structure of nannoplankton assemblages. Here we analyze the nature of these changes in expanded records from the Cambridge‐Dorchester and Mattawoman Creek‐Billingsley Road cores in Maryland. These cores comprise...

León y León, Isabel A.; Bralower, Timothy J.; Self-Trail, Jean M.

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Year Published: 2018

North Atlantic midlatitude surface-circulation changes through the Plio-Pleistocene intensification of northern hemisphere glaciation

The North Atlantic Current (NAC) transports warm salty water to high northern latitudes, with important repercussions for ocean circulation and global climate. A southward displacement of the NAC and Subarctic Front, which separate subpolar and subtropical water masses, is widely suggested for the Last Glacial Maximum (LGM) and may have acted as a...

Bolton, Clara T.; Bailey, Ian; Friedrich, Oliver; Tachikawa, Kazuyo; de Garidel‐Thoron, Thibault; Vidal, Laurence; Sonzogni, Corinne; Marino, Gianluca; Rohling, Eelco J.; Robinson, Marci M.; Ermini, Magali; Koch, Mirjam; Cooper, Matthew J.; Wilson, Paul A.

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Year Published: 2018

North Atlantic midlatitude surface-circulation changes through the Plio-Pleistocene intensification of northern hemisphere glaciation

The North Atlantic Current (NAC) transports warm salty water to high northern latitudes, with important repercussions for ocean circulation and global climate. A southward displacement of the NAC and Subarctic Front, which separate subpolar and subtropical water masses, is widely suggested for the Last Glacial Maximum (LGM) and may have acted as a...

Bolton, Clara T.; Bailey, Ian; Friedrich, Oliver; Tachikawa, Kazuyo; de Garidel‐Thoron, Thibault; Vidal, Laurence; Sonzogni, Corinne; Marino, Gianluca; Rohling, Eelco J.; Robinson, Marci M.; Ermini, Magali; Koch, Mirjam; Cooper, Matthew J.; Wilson, Paul A.

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Year Published: 2018

The Central African Republic Diamond Database—A geodatabase of archival diamond occurrences and areas of recent artisanal and small-scale diamond mining

The alluvial diamond deposits of the Central African Republic (CAR) are mined almost exclusively by way of informal artisanal and small-scale mining (ASM) methods. ASM sites range in diameter from a few meters to 30 meters or more, and are typically excavated by crews of diggers using hand tools, sieves, and jigs. CAR’s reported annual production...

DeWitt, Jessica D.; Chirico, Peter G.; Bergstresser, Sarah E.; Clark, Inga E.
DeWitt, J.D., Chirico, P.G., Bergstresser, S.E., and Clark, I.E., 2018, The Central African Republic Diamond Database—A geodatabase of archival diamond occurrences and areas of recent artisanal and small-scale diamond mining: U.S. Geological Survey Open-File Report 2018–1088, 28 p., 1 pl., https://doi.org/10.3133/ofr20181088.

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Year Published: 2018

The significance of dinoflagellates in the Miocene Choptank Formation beneath the Midlothian gravels in the southeastern Virginia Piedmont

The Fall Line (formally “Tidewater Fall Line”) separates the more resistant igneous, metamorphic, and consolidated sedimentary rocks of the Piedmont from the typically unconsolidated deposits of the Coastal Plain of Virginia. Widespread but now discontinuous patches of a deeply weathered sand and gravel are found west of the Fall Line, capping...

Edwards, Lucy E.; Weems, Robert E.; Carter, Mark W.; Spears, David B.; Powars, David S.

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Year Published: 2018

PRISM marine sites—The history of PRISM sea surface temperature estimation

For more than three decades, the U.S. Geological Survey (USGS) Pliocene Research, Interpretation and Synoptic Mapping (PRISM) Project has compiled paleoenvironmental data with the goal of reconstructing global conditions during the warm interval in the middle of the Piacenzian Age of the Pliocene Epoch (about 3.3 to 3.0 million years ago). Because...

Robinson, Marci M.; Dowsett, Harry J.; Foley, Kevin M.; Riesselman, Christina R.
Robinson, M.M., Dowsett, H.J., Foley, K.M., and Riesselman, C.R., 2018, PRISM marine sites—The history of PRISM sea surface temperature estimation: U.S. Geological Survey Open-File Report 2018–1148, 49 p., https://doi.org/10.3133/ofr20181148.

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Year Published: 2018

Latitudinal limits to the predicted increase of the peatland carbon sink with warming

The carbon sink potential of peatlands depends on the balance of carbon uptake by plants and microbial decomposition. The rates of both these processes will increase with warming but it remains unclear which will dominate the global peatland response. Here we examine the global relationship between peatland carbon accumulation rates during the...

Gallego-Sala, Angela; Charman, Dan; Brewer, Simon; Page, Sue; Prentice, I. Colin; Friedlingstein, Pierre; Moreton, Steve; Amesbury, Matthew; Beilman, David; Bjorck, Svante; Blyakharchuk, Tatiana; Bochicchio, Christopher; Booth, Robert K; Bunbury, Joan; Camill, Philip; Carless, Donna; Chimner, Rodney A.; Clifford, Michael; Cressey, Elizabeth; Courtney-Mustaphi, Colin; De Vleeschouwer, Francois; de Jong, Rixt; Fialkiawicz-Koziel, Barbara; Finkelstein, Sarah A; Garneau, Michelle; Githumbi, Esther N.; Hribjlan, John; Holmquist, James; Hughes, Paul; Jones, Chris D.; Jones, Miriam; Karofeld, Edgar; Klein, Eric S.; Kokfelt, Ulla; Korhola, Atte; Lacourse, Terri; LeRoux, Gael; Lamentowicz, Mariusz; Large, David ; Lavoie, Martin; Loisel, Julie; MacKay, Helen; MacDonald, Glen M.; Makila, Markku; Magnan, Gabriel; Marchant, R.; Marcisz, Katarzyna; Martinez-Cortizas, Antonio; Massa, Charly; Mathijssen, Paul; Mauquoy, Dmitri; Mighall, Timothy; Mitchell, Fraser J.G.; Moss, Patrick; Nichols, J.; Oksanen, P.O.; Orme, L.; Packalen, Maara S.; Robinson, Stephen; Roland, Thomas P.; Sanderson, Nicole K.; Sannel, A.B.K.; Silva-Sanchez, Noemi; Steinberg, Natasha; Swindles, Graeme T.; Turner, T. Edward; Uglow, Joanna; Valiranta, M.; van Bellen, Simon; van der Linden, Marjolein; Wang, Guoping; Yu, Zicheng; Zaragoza-Castells, Joana; Zhao, Yan