Publications
Filter Total Items: 823
Digital bedrock geologic map of the Mount Carmel 7.5 x 15 minute quadrangle, Vermont
No abstract available.
Authors
Nicholas M. Ratcliffe, Gregory J. Walsh
Digital and preliminary bedrock geologic map of the Pico Peak quadrangle, Vermont
No abstract available.
Authors
Gregory J. Walsh, Nicholas M. Ratcliffe
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 discharge.
Authors
L. Joseph Bachman, Bruce D. Lindsey, John W. Brakebill, David S. Powars
Biostratigraphy and physical stratigraphy of the USGS-Cannon Park core (CHN-800), Charleston County, South Carolina
No abstract avavilable.
Authors
Laurel M. Bybell, Kevin J. Conlon, Lucy E. Edwards, N. O. Frederiksen, Gregory Gohn, Jean Self-Trail
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) and Alleghan
Authors
Peter Robinson, Robert D. Tucker, Dwight Bradley, H. N. Berry, P. H. Osberg
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 salinity (
Authors
G. L. Brewster-Wingard, S. E. Ishman, D. A. Willard, Lucy E. Edwards, C. W. Holmes
Pliocene-Quaternary geology of northern New Jersey; road log and description of field stops, Sunday June 1, 1997
No abstract available.
Authors
Ron W. Witte, Jack B. Epstein, John Wright
Pliocene-Quaternary geology of northern New Jersey: Guidebook - Annual reunion of the northeastern friends of the Pleistocene field conference
No abstract available.
Authors
Ron W. Witte, Gail M. Ashley, Jack B. Epstein, Richard K. Shaw, John Wright, Scott D. Stanford
Stratigraphy and regional significance of Mississippian to Jurassic rocks in Sierra Santa Teresa, Sonora, Mexico
No abstract available.
Authors
John H. Stewart, Ricardo Amaya-Martínez, Robert G. Stamm, Bruce R. Wardlaw, George D. Stanley, Calvin H. Stevens
Digital bedrock geologic map of the Mount Holly and Ludlow quadrangles, Vermont, and explanation of the bedrock geology database in the Vermont Geographic Information System, 1994
U.S. Geological Survey
Authors
Gregory J. Walsh, Nicholas M. Ratcliffe, John B. Dudley, Thomas Merrifield
Application of the Modern Analog Technique (MAT) of sea surface temperature estimation to middle Pliocene North Pacific planktonic foraminifer assemblages
Seventy-two samples from Deep Sea Drilling Project Sites 445 and 463 and Ocean Drilling Program Site 769 from the northwest Pacific Ocean were compared to 499 modern core top Pacific Ocean samples using the squared chord distance dissimilarity measure. Many samples show high levels of dissimilarity that can be explained by pervasive dissolution and/or evolution changing the composition of the foss
Authors
Harry J. Dowsett, Marci M. Robinson