Search Results - "Sullivan, Nicholas B."

Millennial-scale variability of the Antarctic ice sheet during the early Miocene by Sullivan, Nicholas B, Meyers, Stephen R, Levy, Richard H, McKay, Robert M, Golledge, Nicholas R, Cortese, Giuseppe

“…Millennial-scale ice sheet variability (1-15 kyr periods) is well documented in the Quaternary, providing insight into critical atmosphere-ocean-cryosphere…”
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Integrating Magnetic Susceptibility Data with Sequence Stratigraphy in the Ironstone Bearing Successions (Lower Silurian) of Eastern North America by Sullivan, Nicholas B., Brett, Carlton E.

“…A total of 839 samples of marine sedimentary rock were collected from Lower Silurian (Aeronian-Sheinwoodian) strata exposed at localities situated along an…”
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Anatomy of a compound sequence boundary: a basal Silurian karstic unconformity in the Cincinnati Arch region by Brett, Carlton E., Thomka, James R., Sullivan, Nicholas B., Mclaughlin, Patrick I.

“…The Ordovician-Silurian contact in parts of the Cincinnati Arch region is an irregularly pitted erosion surface reflecting karstic weathering during a…”
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Correlation of the Waco Member of the Alger Shale Formation (Silurian; Llandovery; Telychian) in east-central Kentucky and south-central Ohio by Sullivan, Nicholas B., Brett, Carlton E., McLaughlin, Patrick I., Kleffner, Mark A., Cramer, Bradley D.

“…New and published stratigraphic data are integrated herein to resolve the age and correlation of the Waco Member (Alger Shale Formation), a problematic…”
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First record of lower – Middle Ordovician (Tremadocian – Dapingian) carbon isotope (δ13Ccarb) chemostratigraphy in the Canning Basin, Western Australia; calibrated with geochronology/biostratigraphy and implications for global correlations by Dent, Louisa, Normore, Leon, Sullivan, Nicholas B., Zhen, Yong Yi, Forbes, Anne

“…New stable carbon isotope data (δ13Ccarb and δ18Ocarb) from the Lower–Middle Ordovician is presented from petroleum exploration well Olympic 1 in the Canning…”
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A record of Late Ordovician to Silurian oceanographic events on the margin of Baltica based on new carbon isotope data, elemental geochemistry, and biostratigraphy from two boreholes in central Poland by Sullivan, Nicholas B., Loydell, David K., Montgomery, Paul, Molyneux, Stewart G., Zalasiewicz, Jan, Ratcliffe, Kenneth T., Campbell, Elaine, Griffiths, James D., Lewis, Gavin

“…New stable isotope data from organic carbon (δ13Corg) and inorganic elemental geochemistry data have been generated from Upper Ordovician to Silurian strata in…”
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Antarctic Ice Sheet History, Neogene Cyclostratigraphy, and Quantitative Biostratigraphy in the Southern Ocean by Sullivan, Nicholas B

“…The study of deep time is crucial for contextualizing present and future environmental change. This is particularly true for the high southern latitudes, a…”
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Subsidence and drowning of a carbonate platform in south-central Mongolia (Gobi Altai region) during the late Eifelian to early Givetian: A synthesis of conodont data, magnetic susceptibility, and paleoecology by Sullivan, Nicholas B., Jeffrey Over, D., Chuluun, Minjin, Myrow, Paul M.

“…•We report new stratigraphic data from remote Devonian sections in southern Mongolia.•Conodonts suggest a varcus Zone assignment for the Govialtai…”
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Subtalar extra-articular screw arthroereisis: Early North American experience in a novel minimally invasive treatment for pediatric pes planovalgus by Sullivan, Nicholas, Miller, Patricia E., Mahan, Susan T.

“…Background: Most children and adolescents who have flexible pes planovalgus (PPV) are asymptomatic, however some have significant daily foot pain that limits…”
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