Publications
Filter Total Items: 921
Reinterpretation of the peninsular Florida Oligocene: An integrated stratigraphic approach Reinterpretation of the peninsular Florida Oligocene: An integrated stratigraphic approach
A very thick (> 300 m) nearly continuous Oligocene section exists in southern peninsular Florida, as revealed by lithostratigraphic, biostratigraphic (mollusks and dinocysts), chronostratigraphic (Sr isotopes) and petrographic analyses of twelve cores and two quarries. The Oligocene deposits in the subsurface of southern Florida are the thickest documented in the southeastern U.S., and...
Authors
G. Lynn Wingard, T.M. Scott, Lucy E. Edwards, S.D. Weedman, K. R. Simmons
Upper Eocene sequence stratigraphy and the Absecon Inlet Formation, New Jersey Coastal Plain Upper Eocene sequence stratigraphy and the Absecon Inlet Formation, New Jersey Coastal Plain
We evaluate the age, benthic biofacies, and sequence stratigraphy of thick and well-recovered upper Eocene sediments from the New Jersey Coastal Plain. These strata are herein defined as a lithostratigraphic unit and named the Absecon Inlet Formation. The formation is divided into upper and lower portions. At its type locality in the Atlantic City borehole, the lower portion of the...
Authors
James V. Browning, Kenneth G. Miller, Laurel M. Bybell
Hydrogeologic data and aquifer interconnection in a multi-aquifer system in coastal plain sediments near Millhaven, Screven County, Georgia, 1991-1995 Hydrogeologic data and aquifer interconnection in a multi-aquifer system in coastal plain sediments near Millhaven, Screven County, Georgia, 1991-1995
No abstract available.
Authors
John S. Clarke, William F. Falls, Lucy E. Edwards, Norman O. Frederiksen, Laurel M. Bybell, Thomas G. Gibson, Gregory Gohn, Fleming R. Farley
Neogene and Quaternary geology of a stratigraphic test hole on Horn Island, Mississippi Sound Neogene and Quaternary geology of a stratigraphic test hole on Horn Island, Mississippi Sound
No abstract available.
Authors
Gregory Gohn, G. L. Brewster-Wingard, Thomas M. Cronin, Lucy E. Edwards, T. G. Gibson, Meyer Rubin, Debra A. Willard
Middle Pliocene sea surface temperatures: A global reconstruction Middle Pliocene sea surface temperatures: A global reconstruction
Identification and analyses of Pliocene marine microfossils from 64 globally distributed stratigraphic sequences have been used to produce a middle Pliocene sea surface temperature reconstruction of the Earth. This reconstruction shows little or no change from current conditions in low latitude regions and significant warming of the ocean surface at mid and higher latitudes of both...
Authors
Harry Dowsett, John Barron, R. Poore
Southeast Atlantic marine and terrestrial response to middle Pliocene climate change Southeast Atlantic marine and terrestrial response to middle Pliocene climate change
Analysis of planktic foraminifers and pollen from Deep Sea Drilling Project Site 532 located on the continental margin of southwest Africa provides information on the link between Pliocene paleoceanographic conditions and paleoenvironments of southwest Africa. Increased upwelling at Site 532 correlates with southward migration of onshore vegetation regions. Both terrestrial and marine...
Authors
Harry Dowsett, D. Willard
40Ar/39Ar whole-rock data constraints on Acadian diagenesis and Alleghanian cleavage in the Martinsburg formation, eastern Pennsylvania 40Ar/39Ar whole-rock data constraints on Acadian diagenesis and Alleghanian cleavage in the Martinsburg formation, eastern Pennsylvania
A comparison of 40Ar/39Ar age spectra of whole-rock mudstone and slate samples from the Ordovician Martinsburg Formation at Lehigh Gap, Pennsylvania and stratigraphic and thermal constraints support Alleghanian age for regional slaty cleavage and a late Acadian age for diagenesis in these rocks. Age spectra from mud-stones have a sigmodal shape, with slopes that climb steeply from...
Authors
R. P. Wintsch, Michael J. Kunk, Jack B. Epstein
Using hydrogeochemical methods to evaluate complex quaternary subsurface stratigraphy Block Island, Rhode Island, USA Using hydrogeochemical methods to evaluate complex quaternary subsurface stratigraphy Block Island, Rhode Island, USA
One of the major problems in hydrogeologic investigations of glaciated regions is the determination of complex stratigraphic relationships in the subsurface where insufficient information is available from drilling and geophysical records. In this paper, chemical characteristics of groundwater were used to identify stratigraphic changes in glacial deposits that were previously inferred...
Authors
A.I. Veeger, B. D. Stone
Digital bedrock geologic map of the Vermont part of the 7.5 x 15 minute Mount Ascutney and Springfield quadrangles, Vermont Digital bedrock geologic map of the Vermont part of the 7.5 x 15 minute Mount Ascutney and Springfield quadrangles, Vermont
No abstract available.
Authors
Gregory J. Walsh, Thomas R. Armstrong, N. M. Ratcliffe
Geohydrology and potential water-supply development on Bumkin, Gallops, Georges, Grape, Lovell, and Peddocks Islands, eastern Massachusetts Geohydrology and potential water-supply development on Bumkin, Gallops, Georges, Grape, Lovell, and Peddocks Islands, eastern Massachusetts
An investigation of the geohydrology and of the potential for water-supply development on several of the Boston Harbor Islands, eastern Massachusetts, was conducted to evaluate the possibility of developing a permanent small-capacity water supply to support recreational activities, such as camping, hiking, and swimming. The Boston Harbor Islands, including Bumkin, Gallops, Georges, Grape...
Authors
John P. Masterson, Byron D. Stone, R.R. Rendigs
Preliminary paleontologic report on core T-24, Little Madeira Bay, Florida Preliminary paleontologic report on core T-24, Little Madeira Bay, Florida
No abstract available.
Authors
S. E. Ishman, G. L. Brewster-Wingard, Debra A. Willard, Thomas M. Cronin, Lucy E. Edwards, C. W. Holmes
Preliminary report on the distribution of modern fauna and flora at selected sites in north-central and north-eastern Florida Bay Preliminary report on the distribution of modern fauna and flora at selected sites in north-central and north-eastern Florida Bay
No abstract available.
Authors
G. L. Brewster-Wingard, S. E. Ishman, Lucy E. Edwards, Debra A. Willard