Publications
Filter Total Items: 880
Digital bedrock geologic map of the Mount Carmel 7.5 x 15 minute quadrangle, Vermont Digital bedrock geologic map of the Mount Carmel 7.5 x 15 minute quadrangle, Vermont
No abstract available.
Authors
Nicholas Ratcliffe, Gregory Walsh
Digital and preliminary bedrock geologic map of the Mount Carmel quadrangle, Vermont Digital and preliminary bedrock geologic map of the Mount Carmel quadrangle, Vermont
No abstract available.
Authors
Nicholas Ratcliffe, Gregory Walsh
Digital and preliminary bedrock geologic map of the Pico Peak quadrangle, Vermont Digital and preliminary bedrock geologic map of the Pico Peak quadrangle, Vermont
No abstract available.
Authors
Gregory Walsh, Nicholas Ratcliffe
Paleozoic orogens in New England, USA Paleozoic orogens in New England, USA
Stratigraphy and isotope geochronology in the crystalline core of the Appalachians suggest revised interpretations of the extent, nature and timing of Paleozoic orogens in New England. Five major episodes of magmatism, deformation, and high-grade regional metamorphism are recognized: Taconian (455-442 Ma), Acadian (423-385 Ma), Neo-Acadian (366-350 Ma), Late Pennsylvanian (300-290 Ma)...
Authors
Peter Robinson, Robert Tucker, Dwight Bradley, H. Berry, P. H. Osberg
Biostratigraphy and physical stratigraphy of the USGS-Cannon Park core (CHN-800), Charleston County, South Carolina Biostratigraphy and physical stratigraphy of the USGS-Cannon Park core (CHN-800), Charleston County, South Carolina
No abstract avavilable.
Authors
Laurel Bybell, Kevin Conlon, Lucy Edwards, N. Frederiksen, Gregory Gohn, Jean Self-Trail
Ground-water discharge and base-flow nitrate loads of nontidal streams, and their relation to a hydrogeomorphic classification of the Chesapeake Bay watershed, middle Atlantic Coast Ground-water discharge and base-flow nitrate loads of nontidal streams, and their relation to a hydrogeomorphic classification of the Chesapeake Bay watershed, middle Atlantic Coast
Existing data on base-flow and groundwater nitrate loads were compiled and analyzed to assess the significance of groundwater discharge as a source of the nitrate load to nontidal streams of the Chesapeake Bay watershed. These estimates were then related to hydrogeomorphic settings based on lithology and physiographic province to provide insight on the areal distribution of ground-water...
Authors
L. Bachman, Bruce D. Lindsey, John Brakebill, David Powars
Preliminary paleontologic report on cores 19A and 19B, from Russell Bank, Everglades National Park, Florida Bay Preliminary paleontologic report on cores 19A and 19B, from Russell Bank, Everglades National Park, Florida Bay
The fauna and flora preserved in two cores, 19A and 19B, from the south side of Russell Bank (N 25 03.831', W 80 37.486') in north-central Florida Bay, Everglades National Park, Florida, record a history of environmental change over the last century. The benthic foraminifera and molluscs indicate fluctuating salinities with increasing average salinity upcore in core 19B. Shifts from low...
Authors
G. L. Brewster-Wingard, S. E. Ishman, Debra A. Willard, Lucy Edwards, C. Holmes
Pliocene-Quaternary geology of northern New Jersey; road log and description of field stops, Sunday June 1, 1997 Pliocene-Quaternary geology of northern New Jersey; road log and description of field stops, Sunday June 1, 1997
No abstract available.
Authors
Ron Witte, Jack Epstein, John Wright
Pliocene-Quaternary geology of northern New Jersey: Guidebook - Annual reunion of the northeastern friends of the Pleistocene field conference Pliocene-Quaternary geology of northern New Jersey: Guidebook - Annual reunion of the northeastern friends of the Pleistocene field conference
No abstract available.
Authors
Ron Witte, Gail Ashley, Jack Epstein, Richard Shaw, John Wright, Scott Stanford