Florence Bascom Geoscience Center

Publications

Filter Total Items: 383
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Year Published: 2008

Reevaluation of mid-Pliocene North Atlantic sea surface temperatures

Multiproxy temperature estimation requires careful attention to biological, chemical, physical, temporal, and calibration differences of each proxy and paleothermometry method. We evaluated mid-Pliocene sea surface temperature (SST) estimates from multiple proxies at Deep Sea Drilling Project Holes 552A, 609B, 607, and 606, transecting the North...

Robinson, Marci M.; Dowsett, Harry J.; Dwyer, Gary S.; Lawrence, Kira T.
Reevaluation of mid-Pliocene North Atlantic sea surface temperatures; 2008; Article; Journal; Paleoceanography; Robinson, Marci M.; Dowsett, Harry J.; Dwyer, Gary S.; Lawrence, Kira T.

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Year Published: 2008

Hydrologic connections and dynamics of water movement in the classical Karst (Kras) Aquifer: evidence from frequent chemical and stable isotope sampling

A review of past research on the hydrogeology of the Classical Karst (Kras) region and new information obtained from a two- year study using environmental tracers are presented in this paper. The main problems addressed are 1) the sources of water to the Kras aquifer resurgence zone-including the famous Timavo springs-under changing flow regimes;...

Doctor, Daniel H.
Hydrologic connections and dynamics of water movement in the classical Karst (Kras) Aquifer: evidence from frequent chemical and stable isotope sampling; 2008; Article; Journal; Acta Carsologica; Doctor, Daniel H.

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Year Published: 2008

Anatomy of a shoreface sand ridge revisted using foraminifera: False Cape Shoals, Virginia/North Carolina inner shelf

Certain details regarding the origin and evolution of shelf sand ridges remain elusive. Knowledge of their internal stratigraphy and microfossil distribution is necessary to define the origin and to determine the processes that modify sand ridges. Fourteen vibracores from False Cape Shoal A, a well-developed shoreface-attached sand ridge on the...

Robinson, Marci M.; McBride, Randolph A.
Anatomy of a shoreface sand ridge revisted using foraminifera: False Cape Shoals, Virginia/North Carolina inner shelf; 2008; Article; Journal; Continental Shelf Research; Robinson, Marci M.; McBride, Randolph A.

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Year Published: 2008

A 26 million year gap in the central Arctic record at the greenhouse-icehouse transition: Looking for clues

The Cenozoic record of the Lomonosov Ridge (central Arctic Ocean) recovered during Integrated Ocean Drilling Program (IODP) Expedition 302 revealed an unexpected 26 Ma hiatus, separating middle Eocene (∼44.4 Ma) from lower Miocene sediments (∼18.2 Ma). To elucidate the nature of this unconformity, we performed a multiproxy palynological (...

Sangiorgi, Francesca; Brumsack, Hans-Juergen; Willard, Debra A.; Schouten, Stefan; Stickley, Catherine E.; O'Regan, Matthew; Reichart, Gert-Jan; Damste, Jaap S. Sinninghe; Brinkhuis, Henk

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Year Published: 2008

Mid-Cenozoic tectonic and paleoenvironmental setting of the central Arctic Ocean

Drilling results from the Integrated Ocean Drilling Program's Arctic Coring Expedition (ACEX) to the Lomonosov Ridge (LR) document a 26 million year hiatus that separates freshwater-influenced biosilica-rich deposits of the middle Eocene from fossil-poor glaciomarine silty clays of the early Miocene. Detailed micropaleontological and...

O'Regan, M.; Moran, K.; Backman, J.; Jakobsson, M.; Sangiorgi, F.; Brinkhuis, Henk; Pockalny, Rob; Skelton, Alasdair; Stickley, Catherine E.; Koc, N.; Brumsack, Hans-Juergen; Willard, Debra A.
O'Regan, M., Moran, K., Jakobsson, M., Sangiorgi, F., Brinkhuis, H., Pockalny, R., Skelton, A., Stickley, C., Koc, N., Brumsack, H.-J., Willard, D., 2008, Mid-Cenozoic tectonic and paleoenvironmental setting of the central Arctic Ocean: Paleoceanography, v. 23, PA1S20, doi:10.1029/2007PA001559.

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Year Published: 2007

Hydrogeology and Simulated Ground-Water Flow in the Salt Pond Region of Southern Rhode Island

The Salt Pond region of southern Rhode Island extends from Westerly to Narragansett Bay and forms the natural boundary between the Atlantic Ocean and the shallow, highly permeable freshwater aquifer of the South Coastal Basin. Large inputs of fresh ground water coupled with the low flushing rates to the open ocean make the salt ponds particularly...

Masterson, John P.; Sorenson, Jason R.; Stone, Janet Radway; Moran, S. Bradley; Hougham, Andrea
Hydrogeology and Simulated Ground-Water Flow in the Salt Pond Region of Southern Rhode Island; 2007; SIR; 2006-5271; Masterson, John P.; Sorenson, Jason R.; Stone, Janet R.; Moran, S. Bradley; Hougham, Andrea

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Year Published: 2007

Integrated multi‐scale characterization of ground‐water flow and chemical transport in fractured crystalline rock at the Mirror Lake Site, New Hampshire

This chapter contains sections titled:IntroductionMirror Lake SiteFractures and Geologic MappingHydraulic Properties of Fractured Rock From Meters to KilometersChemical Migration in Fractured RockFracture Controls on Ground‐Water Flow and Chemical Transport at the Mirror Lake SiteSummary

Hyndman, David W.; Day-Lewis, Frederick D.; Singha, Kamini; Shapiro, Allen M.; Hsieh, Paul A.; Burton, William C.; Walsh, Gregory J.
Shapiro, A.M., Hsieh, P.A., Burton, W.C., and Walsh, G.J., 2007, Integrated multi-scale characterization of ground-water flow and chemical transport in fractured crystalline rock at the Mirror Lake Site, New Hampshire, in Hyndman, D.W., Day-Lewis, F.D., and Singha, K., eds., Subsurface Hydrology--Data Integration for Properties and Processes: Washington, D.C., American Geophysical Union, Geophysical Monograph Series, p. 201-225, ISBN:978-0-87590-437-5.

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Year Published: 2007

Cytherellid species (Ostracoda) and their significance to the Late Quaternary events in the Santos Basin, Brazil

Four autochthonous cytherellid species (Cytherella serratula (BRADY, 1880), C. hermargentina WHATLEY et al. 1998, C. pleistocenica sp. nov. and C. santosensis sp. nov.) have been identified from two offshore cores (44 samples) within the Santos Basin. The distribution of these ostracodes is controlled by local hydrological conditions such as the...

Bergue, C.T.; Coimbra, J.C.; Cronin, T. M.
Cytherellid species (Ostracoda) and their significance to the Late Quaternary events in the Santos Basin, Brazil; 2007; Article; Journal; Senckenbergiana Maritima; Bergue, C. T.; Coimbra, J. C.; Cronin, T. M.

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Year Published: 2006

Geology of Delaware Water Gap National Recreation Area, New Jersey-Pennsylvania

Many of the parks within the National Park System owe their uniqueness to their geologic framework. Their scenery is the result of diverse natural processes acting upon a variety of rocks that were deposited in varied environments in the geologic past. The Delaware Water Gap National Recreation Area (DEWA) contains a rich geologic and cultural...

Epstein, Jack B.

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Year Published: 2005

Geologic map of the Stafford Quadrangle, Stafford County, Virginia

Introduction The Stafford 7.5-minute quadrangle, comprising approximately 55 square miles (142.5 square kilometers) of northeastern Virginia, is about 40 miles (mi) south of Washington, D.C. The region's main north-south transportation corridor, which connects Washington, D.C., and Richmond, Va., consists of Interstate 95, U.S. Highway 1, and...

Mixon, Robert B.; Pavlides, Louis; Horton, J. Wright; Powars, David S.; Schindler, J. Stephen
Geologic Map of the Stafford Quadrangle, Stafford County, Virginia; 2005; SIM; 2841; Mixon, Robert B.; Pavlides, Louis; Horton, J. Wright, Jr.; Powars, David S.; Schindler, J. Stephen

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Year Published: 2002

Correlation of late Cenozoic basaltic lava flows in the Carbondale and Eagle collapse centers in west-central Colorado based on geochemical, isotopic, age, and petrographic data

Major-, minor-, and trace-element abundance data on 220, late Cenozoic, basaltic rocks in and around the Carbondale and Eagle collapse centers in west-central Colorado are combined with isotopic, age, and petrographic data to correlate lava flows and establish the timing and minimum areal extent of collapse events associated with removal of...

Budahn, James R.; Unruh, D. M.; Kunk, Michael J.; Byers, Frank M.; Kirkham, R.M.; Streufert, R.K.

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Year Published: 2002

Tertiary cooling and tectonic history of the White River uplift, Gore Range, and western Front Range, central Colorado: Evidence from fission-track and 39Ar/ 40Ar ages

Apatite fission-track (AFT) data from Proterozoic and Paleozoic rocks in the mountains of north central Colorado (White River Uplift, Gore Range, and western Front Range) record significant cooling that began with uplift and erosion related to the Laramide Orogeny and continued through the Tertiary to Pliocene time. The mountains immediately...

Naeser, C.W.; Bryant, Bruce; Kunk, Michael J.; Kellogg, Karl S.; Donelick, R.A.; Perry, W.J.