Florence Bascom Geoscience Center

Publications

Filter Total Items: 349
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Year Published: 2016

The Pliocene Model Intercomparison Project (PlioMIP) Phase 2: Scientific objectives and experimental design

The Pliocene Model Intercomparison Project (PlioMIP) is a co-ordinated international climate modelling initiative to study and understand climate and environments of the Late Pliocene, as well as their potential relevance in the context of future climate change. PlioMIP examines the consistency of model predictions in simulating Pliocene climate...

Haywood, Alan M.; Dowsett, Harry J.; Dolan, Aisling M.; Rowley, David; Abe-Ouchi, Ayako; Otto-Bliesner, Bette; Chandler, Mark A.; Hunter, Stephen J.; Lunt, Daniel J.; Pound, Matthew; Salzmann, Ulrich

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Year Published: 2016

The “Anthropocene” epoch: Scientific decision or political statement?

The proposal for the “Anthropocene” epoch as a formal unit of the geologic time scale has received extensive attention in scientific and public media. However, most articles on the Anthropocene misrepresent the nature of the units of the International Chronostratigraphic Chart, which is produced by the International Commission on...

Finney, Stanley C.; Edwards, Lucy E.
GSA Today, v. 26, no. 3–4

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Year Published: 2016

Reevaluating the age of the Walden Creek Group and the kinematic evolution of the western Blue Ridge, southern Appalachians

An integrated synthesis of existing datasets (detailed geologic mapping, geochronologic, paleontologic, geophysical) with new paleontologic and geochemical investigations of rocks previously interpreted as part of the Neoproterozoic Walden Creek Group in southeastern Tennessee suggest a necessary reevaluation of the kinematics and structural...

Thigpen, J. Ryan; Hatcher, Robert D.; Kah, Linda C.; Repetski, John E.

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Year Published: 2016

Integrating geological archives and climate models for the mid-Pliocene warm period

The mid-Pliocene Warm Period (mPWP) offers an opportunity to understand a warmer-than-present world and assess the predictive ability of numerical climate models. Environmental reconstruction and climate modelling are crucial for understanding the mPWP, and the synergy of these two, often disparate, fields has proven essential in confirming...

Haywood, Alan M.; Dowsett, Harry J.; Dolan, Aisling M.

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Year Published: 2016

The Laramide Caborca orogenic gold belt of northwestern Sonora, Mexico; white mica 40Ar/39Ar geochronology from gold-rich quartz veins

Introduction This report contains reduced 40Ar/39Ar geochronological data from 63 hydrothermal white mica samples separated from orogenic gold-rich quartz veins in the Laramide Caborca orogenic gold belt (COGB) of northwestern Sonora, Mexico. The main objective of this report is to present the sample locations, 40Ar/39Ar experimental methodology,...

Izaguirre, Aldo; Kunk, Michael J.; Iriondo, Alexander; McAleer, Ryan J.; Caballero-Martinez, Juan Antonio; Espinosa-Arámburu, Enrique
Izaguirre, Aldo, Kunk, M.J., Iriondo, Alexander, McAleer, Ryan, Caballero-Martínez, J.A, and Espinosa Arámburu, Enrique, 2016, The Laramide Caborca orogenic gold belt of northwestern Sonora, Mexico; white mica 40Ar/39Ar geochronology from gold-rich quartz veins: U.S. Geological Survey Open-File Report 2016–1008, 30 p., http://dx.doi.org/10.3133/ofr20161008.

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Year Published: 2016

Effects of permafrost aggradation on peat properties as determined from a pan-Arctic synthesis of plant macrofossils

Permafrost dynamics play an important role in high-latitude peatland carbon balance and are key to understanding the future response of soil carbon stocks. Permafrost aggradation can control the magnitude of the carbon feedback in peatlands through effects on peat properties. We compiled peatland plant macrofossil records for the northern...

Treat, Claire C.; Jones, Miriam C.; Camill, P.; Gallego-Sala, A.; Garneau, M.; Harden, Jennifer W.; Hugelius, G.; Klein, E.S.; Kokfelt, Ulla; Kuhry, P.; Loisel, Julie; Mathijssen, J.H.; O'Donnell, J.A.; Oksanen, P.O.; Ronkainen, T.M.; Sannel, A.B.K.; Talbot, J. J.; Tarnocal, C.M.; Valiranta, M.
Treat, C.C., Jones, M.C., Camill, P., Gallego-Sala, A., Gameau, M., Harden, J.W., Hugelius, G., Klein, E.S., Kokfelt, U., Kuhry, P. Loisel, J., Mathijssen, P.J.H., O'Donnell, J.A., Oksanen, P.O., Ronkainen. T.M., Sannell, A.B.K., Talbot, J., Valiranta, M., 2016, Effects of permafrost aggradation on peat properties as determined from a pan-Arctic synthesis of plant macrofossils: Journal of Geophysical Research. Biogeosciences, 121, doi:10.1002/2015JG003061.

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Year Published: 2016

Erosional history of the Appalachians as recordeed in detrital zircon fission-track ages and lithic detritus in Atlantic Coastal Plain sediments

Comparison of fission-track (FT) ages of detrital zircons recovered from Atlantic Coastal Plain sediments to FT ages of zircons from bedrock in source terranes in the Appalachians provides a key to understanding the provenance of the sediments and, in turn, the erosional and depositional history of the Atlantic passive margin.In Appalachian source...

Naeser, C.W.; Naeser, N.D.; Edwards, Lucy E.; Weems, Robert E.; Southworth, C. Scott; Newell, Wayne L.

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Year Published: 2016

Late Paleocene glyptosaur (Reptilia: Anguidae) osteoderms from South Carolina, USA

Heavily tuberculated glyptosaur osteoderms were collected in an active limestone quarry in northern Berkeley County, South Carolina. The osteoderms are part of a highly diverse late Paleocene vertebrate assemblage that consists of marine, terrestrial, fluvial, and/or brackish water taxa, including chondrichthyan and osteichthyan fish, turtles (...

Cicimurri, David J.; Knight, James L.; Self-Trail, Jean M.; Ebersole, Sandy M.
Cicimurri, D.J., Knight, J.L., Self-Trail, J.M., and Ebersole, S.M., 2016. Journal of Paleontology, v. 90, n. 1, p. 147-153

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Year Published: 2016

Stratigraphic revision of the Cooper Group and the Chandler and Edisto Formations in the Coastal Plain of South Carolina

No abstract available. 

Weems, Robert E.; Albright, Barry; Bybell, Laurel M.; Cicimurri, David J.; Edwards, Lucy E.; Harris, W. Burleigh; Lewis, William C.; Osborne, Jason E.; Sanders, Albert E.; Self-Trail, Jean M.
Weems RE, Bybell LM, Edwards LE, Lewis WC, Self-Trail JM, Albright LB, Cicimurri DJ,Harris WB, Osborne JE, Sanders AE. 2012. Stratigraphic revision of the Cooper Group and theChandler and Edisto Formations in the Coastal Plain of South Carolina. South Carolina Geology49:1–24

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Year Published: 2016

Metaultramafic schists and dismembered ophiolites of the Ashe Metamorphic Suite of northwestern North Carolina, USA

Metaultramafic rocks (MUR) in the Ashe Metamorphic Suite (AMS) of northwestern North Carolina include quartz ± feldspar-bearing QF-amphibolites and quartz-deficient, locally talc-, chlorite-, and/or Mg-amphibole-bearing TC-amphibolites. Some workers divide TC-amphibolites into Todd and Edmonds types, based on mineral and geochemical differences,...

Raymond, Loren A.; Merschat, Arthur J.; Vance, R. Kelly

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Year Published: 2016

Awell-preserved conodont fauna from the Pennsylvanian Excello Shale of Iowa, U. S. A.

A superbly preserved discrete element conodont fauna has been recovered from carbonate concretions from the upper Desmoinesian (Pennsylvanian) Excello Shale at two localities in south-central Iowa. The multielement apparatuses for Gondolella wardlawi (new species), Idiognathodus acutus, Idioprioniodus conjunctus, and Neognathodus roundyi are...

Merlynd K. Nestell; Wardlaw, Bruce R.; John P. Pope

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Year Published: 2016

Early Mesozoic geology in Virginia

No abstract available.

Bailey, Christopher M.; Sherwood, W. Cullen; Eaton, L. Scott; Powars, David S.; Smoot, Joseph P.
Joseph P. Smoot Early Mesozoic Geology in Virginia