Index Catalog // ScholarsArchive@OSU

Magnetotelluric Constraints on Lithospheric Properties in the Southeastern United States

Creator:: Murphy, Benjamin S.
Abstract:: By inverting EarthScope long-period magnetotelluric (MT) data from the southeastern United States (SEUS), we obtain electrical conductivity images that provides key insights into the geodynamics of this region. Significantly, we resolve a highly electrically resistive block that extends to mantle depths beneath the modern Piedmont and Coastal Plain physiographic provinces....
Resource Type:: Dissertation

A high-resolution study of tides in the Delaware Bay: Past conditions and future scenarios

Creator:: Hall, George F., Hill, David F., Horton, Benjamin P., Engelhart, Simon E., and Peltier, W. R.
Abstract:: Tides in the Delaware Bay (USA) have been modeled from 7000 years before present (7 ka) to the present day and for selected future sea-level rise scenarios (100 years, 300 years). Historic bathymetries were constructed through use of glacial isostatic adjustment models and a very high spatial resolution (< 100...
Resource Type:: Article
Full Text:: , doi:10.1029/2012GL054675. 1. Introduction [2] Computational models of tides have shown variation in

Multiproxy assessment of the western equatorial Pacific hydrography during the last 30 kyr

Creator:: de Garidel-Thoron, Thibault, Rosenthal, Yair, Beaufort, Luc, Bard, Edouard, Sonzogni, Corinne, and Mix, Alan C.
Abstract:: Sea surface temperature (SST) and salinity of the Western Pacific Warm Pool (WPWP) reflect global climate effects such as the El Niño–Southern Oscillation phenomenon. However, reconstructions of past changes in the WPWP from the geologic record vary depending on the specific proxy record used. Here we develop a multiproxy record...
Resource Type:: Article
Full Text:: , Paleoceanography, 22, PA3204, doi:10.1029/2006PA001269. 1. Introduction [2] The sensitivity of the equatorial

New Foraminifera-Based Proxies to Trace Changes to the Organic and Inorganic Carbon System Since the Last Glacial Maximum

Creator:: Fritz-Endres, Theresa
Abstract:: The production of carbon and export to deep ocean sediments is linked to carbon partitioning between the ocean and atmosphere and is a key driver of climate change over the glacial-interglacial transition. Yet conflicting reconstructions create barriers to understanding changes to the carbon system over this important climate transition. Production...
Resource Type:: Dissertation
Full Text:: atmospheric pCO2 cycles?. Reviews of Geophysics, 38(2), 159-189. doi.10.1029/1999RG000066 Bahr, A

Correction to "Dynamics of mean and subtidal flow on the New England shelf"

Creator:: Shearman, R. Kipp and Lentz, Steven J.
Resource Type:: Article
Full Text:: mean and subtidal flow on the New England shelf,’’ J. Geophys. Res., 112, C02015, doi:10.1029

Thermal effects of hydrothermal circulation and seamount subduction: Temperatures in the Nankai Trough Seismogenic Zone Experiment transect, Japan

Creator:: Spinelli, G. A. and Harris, R. N.
Abstract:: We examine the thermal effects of seamount subduction. Seamount subduction may cause transient changes in oceanic crust hydrogeology and plate boundary fault position. Prior to subduction, seamounts provide high‐permeability pathways between the basaltic crustal aquifer and overlying ocean that can focus fluid flow and efficiently cool the oceanic crust. As...
Resource Type:: Article
Full Text:: Q0AD21, doi:10.1029/2011GC003727 ISSN: 1525-2027 Thermal effects of hydrothermal circulation and

Increased dissolved terrestrial input to the coastal ocean during the last deglaciation

Creator:: Klinkhammer, Gary P., Mix, Alan C., and Haley, B. A.
Abstract:: Here we present the first downcore results for a new paleoproxy, the Mn/Ca ratio of foraminiferal calcite, applied to sediment accumulated in the extreme Eastern Tropical North Pacific (ETNP) over the last 30,000 years. The Mn/Ca results are compared to oxygen isotopes and sea surface temperature calculated from Mg/Ca. We...
Resource Type:: Article
Full Text:: ocean during the last deglaciation, Geochem. Geophys. Geosyst., 10, Q03009, doi:10.1029/2008GC002219

Detailed volcanostratigraphy of an accreted seamount: Implications for intraplate seamount formation

Creator:: Schnur, Susan R. and Gilbert, Lisa A.
Abstract:: Seamounts are a ubiquitous feature of the seafloor but relatively little is known about their internal structure. A seamount preserved in the Franciscan mélange of California suggests a sequence of formation common to all seamounts. Field mapping, geophysical measurements, and geochemical analyses are combined to interpret three stages of seamount...
Resource Type:: Article
Full Text:: Q0AM05, doi:10.1029/2012GC004301 ISSN: 1525-2027 Detailed volcanostratigraphy of an accreted seamount

Impact of Convective Activity on Precipitation delta O-18 in Isotope-Enabled General Circulation Models

Creator:: Hu, Jun, Emile-Geay, Julien, Nusbaumer, Jesse, and Noone, David
Abstract:: The delta O-18 signal preserved in paleoarchives is widely used to reconstruct past climate conditions. In many speleothems, this signal is classically interpreted via the amount effect. However, recent work has shown that precipitation delta O-18 (delta O-18(p)) is greatly influenced by convective processes distinct from precipitation amount, and new...
Resource Type:: Article
Full Text:: convective precipitation was generated from strong RESEARCH ARTICLE 10.1029/2018JD029187 Key Points

Abrupt change in atmospheric CO₂ during the last ice age

Creator:: Ahn, Jinho, Brook, Edward J., Schmittner, Andreas, and Kreutz, Karl
Abstract:: During the last glacial period atmospheric carbon dioxide and temperature in Antarctica varied in a similar fashion on millennial time scales, but previous work indicates that these changes were gradual. In a detailed analysis of one event we now find that approximately half of the CO₂ increase that occurred during...
Resource Type:: Article
Full Text:: last ice age, Geophys. Res. Lett., 39, L18711, doi:10.1029/ 2012GL053018. 1. Introduction [2] Ancient

ScholarsArchive@OSU

Magnetotelluric Constraints on Lithospheric Properties in the Southeastern United States

A high-resolution study of tides in the Delaware Bay: Past conditions and future scenarios

Multiproxy assessment of the western equatorial Pacific hydrography during the last 30 kyr

New Foraminifera-Based Proxies to Trace Changes to the Organic and Inorganic Carbon System Since the Last Glacial Maximum

Correction to "Dynamics of mean and subtidal flow on the New England shelf"

Thermal effects of hydrothermal circulation and seamount subduction: Temperatures in the Nankai Trough Seismogenic Zone Experiment transect, Japan

Increased dissolved terrestrial input to the coastal ocean during the last deglaciation

Detailed volcanostratigraphy of an accreted seamount: Implications for intraplate seamount formation

Impact of Convective Activity on Precipitation delta O-18 in Isotope-Enabled General Circulation Models

Abrupt change in atmospheric CO₂ during the last ice age

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