Publications
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Sensitivity of Pliocene ice sheets to orbital forcing Sensitivity of Pliocene ice sheets to orbital forcing
The stability of the Earth's major ice sheets is a critical uncertainty in predictions of future climate and sea level change. One method of investigating the behaviour of the Greenland and the Antarctic ice sheets in a warmer-than-modern climate is to look back at past warm periods of Earth history, for example the Pliocene. This paper presents climate and ice sheet modelling results...
Authors
A.M. Dolan, A.M. Haywood, D.J. Hill, H.J. Dowsett, S.J. Hunter, D.J. Lunt, S.J. Pickering
Paleogene calcareous nannofossils of Southern Maryland, South Dover Bridge Core, USA Paleogene calcareous nannofossils of Southern Maryland, South Dover Bridge Core, USA
No abstract available
Authors
Jean M. Self-Trail
Did intense volcanism trigger the first Late Ordovician icehouse? REPLY Did intense volcanism trigger the first Late Ordovician icehouse? REPLY
We appreciate the Comment by Herrmann et al. (2011) to our paper (Buggisch et al., 2010). When we compiled the data set for our publication, we were aware that we had not enough pre-Deicke conodont oxygen isotope data because Webers’ (1966) conodont collections from the Pecatonica Member did not yield enough specimens for isotope analysis. At that time, the recently published data of...
Authors
Werner Buggisch, Michael M. Joachimski, Oliver Lehnert, Stig M. Bergstrom, John E. Repetski
Notes on the geology and meteorology of sites infected with white-nose syndrome before July 2010 in Southeastern United States Notes on the geology and meteorology of sites infected with white-nose syndrome before July 2010 in Southeastern United States
Since 2006, numerous bat colonies in North America have experienced unusually high incidences of mortality. In these colonies, bats are infected by a white fungus named Geomyces destructans, which has been observed on bat muzzles, noses, ears, and (or) wings. Although it is not exactly certain how and why these bats are dying, this condition has been named white-nose syndrome (WNS). WNS...
Authors
Christopher S. Swezey, Christopher P. Garrity
Conodont biostratigraphy and stable isotope stratigraphy across the Ordovician Knox/Beekmantown unconformity in the central Appalachians Conodont biostratigraphy and stable isotope stratigraphy across the Ordovician Knox/Beekmantown unconformity in the central Appalachians
No abstract available.
Authors
Stephen A. Leslie, Matthew R. Saltzman, S. M. Bergstrom, J.E. Repetski, A. Howard, A.M. Seward
Micropaleontologic record of Quaternary paleoenvironments in the Central Albemarle Embayment, North Carolina, U.S.A. Micropaleontologic record of Quaternary paleoenvironments in the Central Albemarle Embayment, North Carolina, U.S.A.
To understand the temporal and spatial variation of eustatic sea-level fluctuations, glacio–hydro–isostacy, tectonics, subsidence, geologic environments and sedimentation patterns for the Quaternary of a passive continental margin, a nearly complete stratigraphic record that is fully integrated with a three dimensional chronostratigraphic framework, and paleoenvironmental information are...
Authors
Stephen J. Culver, Kathleen M. Farrell, David J. Mallinson, Debra A. Willard, Benjamin P. Horton, Stanley R. Riggs, E. Robert Thieler, John F. Wehmiller, Peter Parham, Scott W. Snyder, Caroline Hillier
Sea surface temperatures of the mid-Piacenzian Warm Period: A comparison of PRISM3 and HadCM3 Sea surface temperatures of the mid-Piacenzian Warm Period: A comparison of PRISM3 and HadCM3
It is essential to document how well the current generation of climate models performs in simulating past climates to have confidence in their ability to project future conditions. We present the first global, in-depth comparison of Pliocene sea surface temperature (SST) estimates from a coupled ocean–atmosphere climate model experiment and a SST reconstruction based on proxy data. This...
Authors
Harry J. Dowsett, A.M. Haywood, P.J. Valdes, Marci M. Robinson, D.J. Lunt, D.J. Hill, D.K. Stoll, Kevin M. Foley
U.S. Geological Survey: A synopsis of Three-dimensional Modeling U.S. Geological Survey: A synopsis of Three-dimensional Modeling
The U.S. Geological Survey (USGS) is a multidisciplinary agency that provides assessments of natural resources (geological, hydrological, biological), the disturbances that affect those resources, and the disturbances that affect the built environment, natural landscapes, and human society. Until now, USGS map products have been generated and distributed primarily as 2-D maps...
Authors
Linda J. Jacobsen, Pierre D. Glynn, Geoff A. Phelps, Randall C. Orndorff, Gerald W. Bawden, V. J. S. Grauch
An occurrence of the protocetid whale "Eocetus" wardii in the middle Eocene Piney Point Formation of Virginia An occurrence of the protocetid whale "Eocetus" wardii in the middle Eocene Piney Point Formation of Virginia
Two protocetid whale vertebrae, here referred to “Eocetus” wardii, have been recovered from the riverbed of the Pamunkey River in east-central Virginia. Neither bone was found in situ, but both were found with lumps of lithified matrix cemented to their surfaces. Most of this matrix was removed and processed for microfossils. Specimens of dinoflagellates were successfully recovered and...
Authors
Robert E. Weems, Lucy E. Edwards, Jason E. Osborne, A.A. Alford
Inside the crater, outside the crater: Stratigraphic details of the margin of the Chesapeake Bay impact structure, Virginia, USA Inside the crater, outside the crater: Stratigraphic details of the margin of the Chesapeake Bay impact structure, Virginia, USA
Two cores at the outer margin of the Chesapeake Bay impact structure show significant structural and depositional variations that illuminate its history. Detailed stratigraphy of the Watkins School core reveals that this site is outside the disruption boundary of the crater with respect to its lower part (nonmarine Cretaceous Potomac Formation), but just inside the boundary with respect...
Authors
Lucy E. Edwards, David S. Powars, J. Wright Horton,, Gregory Gohn, Jean Self-Trail, R. J. Litwin
Delaware Water Gap; a geology classroom Delaware Water Gap; a geology classroom
No abstract available.
Authors
Jack B. Epstein