Florence Bascom Geoscience Center

Publications

Filter Total Items: 619
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Year Published: 2021

Dendritic reidite from the Chesapeake Bay impact horizon, Ocean Drilling Program Site 1073 (offshore northeastern USA): A fingerprint of distal ejecta?

High-pressure minerals provide records of processes not normally preserved in Earth’s crust. Reidite, a quenchable polymorph of zircon, forms at pressures >20 GPa during shock compression. However, there is no broad consensus among empirical, experimental, and theoretical studies on the nature of the polymorphic transformation. Here we decipher...

Cavosie, Aaron J.; Biren, Marc C; Hodges, Kip V.; Wartho, Jo-Anne; Horton, J. Wright; Koeberl, Christian

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Year Published: 2020

Bedrock geologic map of the Springfield 7.5- x 15-minute quadrangle, Windsor County, Vermont, and Sullivan County, New Hampshire

The bedrock geology of the 7.5- by 15-minute Springfield quadrangle consists of highly deformed and metamorphosed Mesoproterozoic through Devonian metasedimentary and meta-igneous rocks. In the west, Mesoproterozoic gneisses of the Mount Holly Complex are the oldest rocks and form the eastern side of the Chester dome. The Moretown slice...

Walsh, Gregory; Valley, Peter M.; Armstrong, Thomas R.; Ratcliffe, Nicholas M.; Merschat, Arthur J.; Gentry, Beau J.
Walsh, G.J., Valley, P.M., Armstrong, T.R., Ratcliffe, N.M., Mershat, A.J., and Gentry, B.J., 2020, Bedrock geologic map of the Springfield 7.5- x 15-minute quadrangle, Windsor County, Vermont, and Sullivan County, New Hampshire: U.S. Geological Survey Scientific Investigations Map 3462, 2 sheets, scale 1:24,000, https://doi.org/10.3133/sim3462.

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Year Published: 2020

Subsea permafrost carbon stocks and climate change sensitivity estimated by expert assessment

The continental shelves of the Arctic Ocean and surrounding seas contain large stocks of organic matter (OM) and methane (CH4), representing a potential ecosystem feedback to climate change not included in international climate agreements. We performed a structured expert assessment with 25 permafrost researchers to combine quantitative estimates...

Sayedi, Sara; Abbott, Benjamin W; Thornton, B.F.; Frederick, Jennifer M.; Vonk, Jorien E.; Overduin, Paul; Schadel, Christina; Schuur, E.A.G.; Bourbonnais, A.; Demidova, N.; Gavrilov, Anatoly; He, Shengping; Gustaf Hugelius, Gustaf; Jakobsson, Martin; Jones, Miriam C.; Joung, DoongJoo; Kraev, Gleb; Macdonald, Robie W.; McGuire, A. David; Mu, Cuicui; O'Regan, M.; Schreiner, Kathryn M.; Stranne, Christian; Pizhankova, Elena; Vasiliev, A.; Westermann, S.; Zarnetske, Jay P.; Zhang, Tingjun; Ghandehari, M; Baeumler, Sarah; Brown, Brian C.; Frei, Rebecca J.

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Year Published: 2020

Depositional sequence stratigraphy of Turonian to Santonian sediments, Cape Fear arch, North Carolina Coastal Plain, USA

A new sequence stratigraphic framework for Turonian to Santonian (94-84 Ma) sediments is established using data from the USGS Kure Beach and Elizabethtown cores collected from the Atlantic Coastal Plain of North Carolina (NC). These sediments represent some of the oldest marine units deposited on the southeastern Atlantic Coastal Plain and record...

Aleman Gonzalez, Wilma; Self-Trail, Jean M.; Harris, W. Burleigh; Moore, Jessica P.; Farrell, Kathleen

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Year Published: 2020

Environmental data associated with sites infected with white-nose syndrome (WNS) before October 2011 in North America

White-nose syndrome (WNS) is an emerging infectious disease of hibernating bats caused by a fungus previously known as Geomyces destructans and reclassified as Pseudogymnoascus destructans. The disease was first documented in 2006 in New York, has since spread across much of eastern North America, and as of January 2012, had caused the death of at...

Swezey, Christopher S.; Garrity, Christopher P.
Swezey, C.S., and Garrity, C.P., 2020, Environmental data associated with sites infected with white-nose syndrome (WNS) before October 2011 in North America: U.S. Geological Survey Open-File Report 2020–1117, 67 p., https://doi.org/10.3133/ofr20201117.

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Year Published: 2020

Tidal wetland resilience to increased rates of sea level rise in the Chesapeake Bay: Introduction to the special feature

The papers in this Special Feature are the result of the first Marsh Resilience Summit in the Chesapeake Bay region, which occurred in February 2019. The Chesapeake Bay region has one of the highest rates of relative sea level rise in the U.S., jeopardizing over 1000 km2 of tidal wetlands along with other coastal lands. The goal of the...

Sudol, Taryn A; Noe, Gregory B.; Reed, Denise J

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Year Published: 2020

North American commission on stratigraphic nomenclature report 14 – Revision of articles 25-27 of the North American stratigraphic code to formalize subseries and subepochs

At the 75th Annual Meeting of the North American Commission on Stratigraphic Nomenclature, 22 October, 2020, in connection with GSA 2020 Connects Online, the Commission voted unanimously to accept the revision of Articles 73, 81 and 82 of the North American Stratigraphic Code (North American Commission on Stratigraphic Nomenclature, 2005 with...

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

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Year Published: 2020

Historically unprecedented Northern Gulf of Mexico hurricane activity from 650 to 1250 CE

Hurricane Michael (2018) was the first Category 5 storm on record to make landfall on the Florida panhandle since at least 1851 CE (Common Era), and it resulted in the loss of 59 lives and $25 billion in damages across the southeastern U.S. This event placed a spotlight on recent intense (exceeding Category 4 or 5 on the Saffir-Simpson Hurricane...

Rodysill, Jessica R. ; Donnelly, Jeffrey P.; Sullivan, Richard; Lane, Philip D.; Toomey, Michael; Woodruff, Jonathan D.; Hawkes, Andrea D.; MacDonald, Dana; d’Entremont, Nicole; McKeon, Kelly; Wallace, Elizabeth; van Hengstum, Peter J.

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Year Published: 2020

Ryder Glacier in northwest Greenland is shielded from warm Atlantic water by a bathymetric sill

The processes controlling advance and retreat of outlet glaciers in fjords draining the Greenland Ice Sheet remain poorly known, undermining assessments of their dynamics and associated sea-level rise in a warming climate. Mass loss of the Greenland Ice Sheet has increased six-fold over the last four decades, with discharge and melt from outlet...

Jakobsson, Martin; Mayer, Larry; Nilsson, Johan; Stranne, Christian; Calder, Brian; O'Regan, Matthew; Farrell, J.; Cronin, Thomas M.; Bruchert, Volker; Chawarski, Julek; Eriksson, Bjorn; Fredriksson, Jonas; Gemery, Laura; Glueder, Anna; Holmes, Felicity A.; Jerram, Kevin; Kirchner, Nina; Mix, Alan; Muchowski, Julia; Prakash, Abhay; Reilly, Brendan; Thornton, Brett; Ulfsbo, Adam; Weidner, Elizabeteh; Akesson, Henning; Handl, Tamara; Stahl, Emelie; Boze, Lee-Gray; Reed, Sam; West, Gabriel; Padman, June

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Year Published: 2020

Investigation of suitable habitat for the endangered plant Ptilimnium nodosum (Rose) Mathias (harperella) using remote sensing and field analysis—Documentation of methods and results

Ptilimnium nodosum (Rose) Mathias (harperella) is an endangered plant species found in Maryland, Virginia, and West Virginia, as well as in other locations throughout the southeastern United States. The narrow range of habitat characteristics for areas in which harperella has been found makes locating potential occurrence sites difficult and...

DeWitt, Jessica D.; O'Pry, Kelsey L.; Chirico, Peter G.; Young, John A.
DeWitt, J.D., O’Pry, K.L., Chirico, P.G., and Young, J.A., 2020, Investigation of suitable habitat for the endangered plant Ptilimnium nodosum (Rose) Mathias (harperella) using remote sensing and field analysis—Documentation of methods and results: U.S. Geological Survey Open-File Report 2020–1088, 59 p., https://doi.org/10.3133/ofr20201088.

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Year Published: 2020

Meeting the challenge: U.S. Geological Survey North Atlantic and Appalachian Region fiscal year 2020 in review

The utilization, preservation, and conservation of the Nation’s resources requires well-informed management decisions. The North Atlantic and Appalachian Region (NAAR) of the U.S. Geological Survey (USGS) supports science-based decision making for Federal, State, and local policymakers to meet the challenges of today and into the future. The...

U.S. Geological Survey, 2020, Meeting the challenge—U.S. Geological Survey North Atlantic and Appalachian Region fiscal year 2020 in review: U.S. Geological Survey General Information Product 207, 20 p., https://doi.org/10.3133/gip207.

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Year Published: 2020

Geologic and mineral map (modified from the 1975 original map compilation by A.S. Shadchinev and others) and hyperspectral surface materials maps of the Ghorband, Salang, and Panjsher River Basins; Kapisa, Panjsher, Parwan, and Baghlan Provinces, Afghanistan

IntroductionThe geologic map and cross sections are a redrafted and modified version of the Geologic map and map of mineral resources of the basins of Ghorband, Salang, and Panjsher; located in the Kapisa, Panjsher, Parwan, and Baghlan Provinces, Afghanistan. The original map and cross sections are contained in an unpublished Soviet report no....

Stettner, Will R.; Koroleva, Natalia E.; Masonic, Linda M.; Shields, David A.
Stettner, W.R., Koroleva, N.E., Masonic, L.M., and Shields, D.A., comps., 2020, Geologic and mineral map (modified from the 1975 original map compilation by A.S. Shadchinev and others) and hyperspectral surface materials maps of the Ghorband, Salang, and Panjsher River Basins; Kapisa, Panjsher, Parwan, and Baghlan Provinces, Afghanistan: U.S. Geological Survey Open-File Report 2020–1101, 2 sheets, scale 1:100,000, https://doi.org/10.3133/ofr20201101.