Publications
Filter Total Items: 881
Alleghanian development of the Goat Rock fault zone, southernmost Appalachians: Temporal compatibility with the master decollement Alleghanian development of the Goat Rock fault zone, southernmost Appalachians: Temporal compatibility with the master decollement
The Goat Rock and associated Bartletts Ferry fault zones, which mark the eastern margin of the Pine Mountain Grenville basement massif, are controversial due to the suggestion that they are rare exposed segments of the late Paleozoic southern Appalachian master decollement. The controversy in part stems from reported middle Paleozoic (Acadian) radiometric dates postulated as the time of...
Authors
Mark G. Steltenpohl, S. Goldberg, T.B. Hanley, Michael J. Kunk
Calibration of the latest Eocene-Oligocene geomagnetic polarity time scale using 40 Ar/ 39 Ar dated ignimbrites Calibration of the latest Eocene-Oligocene geomagnetic polarity time scale using 40 Ar/ 39 Ar dated ignimbrites
A discontinuous record of late Eocene-Oligocene geomagnetic polarity has been determined using high-precision (±
Authors
W. C. McIntosh, J. W. Geissman, C.E. Chapin, Michael J. Kunk, Christopher D. Henry
Hydrogeology of thick till deposits in Connecticut Hydrogeology of thick till deposits in Connecticut
No abstract available.
Authors
Robert L. Melvin, Byron D. Stone, J. R. Stone, N.J. Trask
Paleocene and Eocene strata of the central Atlantic Coastal Plain Paleocene and Eocene strata of the central Atlantic Coastal Plain
No abstract available.
Authors
Thomas G. Gibson, Laurel M. Bybell, David L. Govoni
Calcareous nannofossils and foraminifers from Paleocene and Eocene strata in Maryland and Virginia Calcareous nannofossils and foraminifers from Paleocene and Eocene strata in Maryland and Virginia
No abstract available.
Authors
Laurel M. Bybell, Thomas G. Gibson
Potomac River Paleocene and Eocene stop descriptions Potomac River Paleocene and Eocene stop descriptions
No abstract available.
Authors
Thomas G. Gibson, Laurel M. Bybell
Paleocene-Eocene boundary: Sedimentation in the Potomac River Valley, Virginia and Maryland: field trip guidebook Paleocene-Eocene boundary: Sedimentation in the Potomac River Valley, Virginia and Maryland: field trip guidebook
No abstract available.
Authors
Thomas G. Gibson, Laurel M. Bybell
The second Lehigh Tunnel; geology and the New Austrian Tunnelling Method The second Lehigh Tunnel; geology and the New Austrian Tunnelling Method
No abstract available.
Authors
Jack B. Epstein, Patricia F. Buis
Pliocene paleoclimatic reconstruction using dinoflagellate cysts: Comparison of methods Pliocene paleoclimatic reconstruction using dinoflagellate cysts: Comparison of methods
The application of quantitative and semiquantitative methods to assemblage data from dinoflagellate cysts shows potential for interpreting past environments, both in terms of paleotemperature estimates and in recognizing water masses and circulation patterns. Estimates of winter sea-surface temperature (WSST) were produced by using the Impagidinium Index (II) method, and by applying a...
Authors
Lucy E. Edwards, P.J. Mudie, A. de Vernal
Geology, geophysics, and geochronology of the Manson impact structure Geology, geophysics, and geochronology of the Manson impact structure
A problem with the impact hypothesis for the Cretaceous/Tertiary (K/T) mass extinction is the apparent absence of an identifiable impact site. The Manson impact structure is a candidate site because of its size (the largest such structure recognized in the United States); in addition, the largest and most abundant shocked quartz grains at the K/T boundary are found relatively close by...
Authors
Jack B. Hartung, Michael J. Kunk, R. R. Anderson
Eocene-Oligocene sea-level changes on the New Jersey coastal plain linked to the deep-sea record Eocene-Oligocene sea-level changes on the New Jersey coastal plain linked to the deep-sea record
We use magnetostratigraphy and Sr-isotope stratigraphy to improve stratigraphic control for the Eocene to Oligocene of the New Jersey coastal plain (ACGS4 borehole). Magnetostratigraphy in many cases is complicated in outcrop sections of shallow-water (
Authors
Kenneth G. Miller, Dennis V. Kent, Andrew N. Brower, Laurel M. Bybell, Mark D. Feigenson, Richard K. Olsson, Richard Z. Poore
Peridinialean dinoflagellate plate patterns, labels and homologies Peridinialean dinoflagellate plate patterns, labels and homologies
Tabulation patterns for peridinialean dinoflagellate thecae and cysts have been traditionally expressed using a plate labelling system described by C.A. Kofoid in the early 1900's. This system can obscure dinoflagellate plate homologies and has not always been strictly applied. The plate-labelling system presented here introduces new series labels but incorporates key features and ideas...
Authors
Lucy Edwards