Florence Bascom Geoscience Center


The Florence Bascom Geoscience Center (FBGC) is at the leading edge of scientific research addressing critical societal issues and providing unbiased data and information to decision makers and the public. Our research center is built around five broad science themes: Paleoclimate & Paleoecology, Landscape Science, Geologic Mapping, Hazards, and Special Geologic Studies. 


Story on Mid-Atlantic Stream/Sediment Science

Story on Mid-Atlantic Stream/Sediment Science

FBGC's ecologist Greg Noe's work is highlighted in this great article discussing legacy erosion and sedimentation in Mid-Atlantic watersheds.

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Climate Change Impacts on Mangrove Forests

Climate Change Impacts on Mangrove Forests

FBGC scientists Miriam Jones and Lynn Wingard were recently interviewed by NPR regarding climate change and mangrove forests. 

Listen to Interview

Biography of Florence Bascom

Biography of Florence Bascom

The video in the link below is a brief but informative introduction to the life and work of Florence Bascom.

See Biography


Date published: October 16, 2020

Memorial to Jack B. Epstein (1935-2020)

Recently, the Florence Bascom Geoscience Center, USGS lost Jack Epstein, a colleague, mentor, and friend. Here is a fitting tribute and memorial to Jack and his nearly 60 years with USGS.

Date published: September 29, 2020

National Preparedness Month 2020: Landslides and Sinkholes

Natural hazards have the potential to impact a majority of Americans every year. USGS science provides part of the foundation for emergency preparedness whenever and wherever disaster strikes.

Date published: September 15, 2020

Floodplain Ecosystem Service Mapper Released

The Floodplain Ecosystem Service Mapper is a web application that displays field site data and lidar-derived floodplain and stream channel geomorphic metrics in the Delaware River and Chesapeake Bay watersheds.


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Year Published: 2021

Karst geology of the Upper Midwest, USA

Karst in the Upper Midwest occurs within a thick sequence of mixed carbonate and siliciclastic Cambrian through Pennsylvanian sedimentary rocks, with a minor occurrence of karst in Proterozoic sandstone. Deposition of the sediments occurred on a marine epeiric ramp that spanned much of the North American continent through most of the...

Doctor, Daniel H.; Alexander, E. Calvin

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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 J.; 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.