Search Results - "Hodell, D.A."

Relative paleointensity (RPI) and oxygen isotope stratigraphy at IODP Site U1308: North Atlantic RPI stack for 1.2–2.2 Ma (NARPI-2200) and age of the Olduvai Subchron by Channell, J.E.T., Hodell, D.A., Curtis, J.H.

“…Integrated Ocean Drilling Program (IODP) Site U1308 (49°53′N, 24°14′W; water depth 3871 m) provides a record of relative paleointensity (RPI) and benthic…”
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A 1-Ma record of sea surface temperature and extreme cooling events in the North Atlantic: A perspective from the Iberian Margin by Rodrigues, T., Alonso-García, M., Hodell, D.A., Rufino, M., Naughton, F., Grimalt, J.O., Voelker, A.H.L., Abrantes, F.

“…The Iberian Margin is a sensitive area to track high and low latitude processes, and is a key location to understand major past climatic and oceanographic…”
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Relative paleointensity (RPI) in the latest Pleistocene (10–45 ka) and implications for deglacial atmospheric radiocarbon by Channell, J.E.T., Hodell, D.A., Crowhurst, S.J., Skinner, L.C., Muscheler, R.

“…We report magnetic properties and relative paleointensity (RPI) proxies from a suite of 10 conventional piston cores and Kasten cores from the SW Iberian…”
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Tropically-driven climate shifts in southwestern Europe during MIS 19, a low eccentricity interglacial by Sánchez Goñi, M.F., Rodrigues, T., Hodell, D.A., Polanco-Martínez, J.M., Alonso-García, M., Hernández-Almeida, I., Desprat, S., Ferretti, P.

“…The relative roles of high- versus low-latitude forcing of millennial-scale climate variability are still not well understood. Here we present…”
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Magnetic signatures of Heinrich-like detrital layers in the Quaternary of the North Atlantic by Channell, J.E.T., Hodell, D.A.

“…Magnetic parameters are useful for distinguishing North Atlantic Heinrich-like detrital layers from background sediments. Here we compare magnetic properties…”
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Age calibrated relative paleointensity for the last 1.5 Myr at IODP Site U1308 (North Atlantic) by Channell, J.E.T., Hodell, D.A., Xuan, C., Mazaud, A., Stoner, J.S.

“…Integrated Ocean Drilling Program (IODP) Site U1308 (central North Atlantic) records paleomagnetic directional and relative paleointensity (RPI) variations for…”
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Geomagnetic paleointensity for the last 100 kyr from the sub-antarctic South Atlantic: a tool for inter-hemispheric correlation by Channell, J.E.T., Stoner, J.S., Hodell, D.A., Charles, C.D.

“…We report relative paleointensity proxy records from four piston cores collected near the Agulhas Ridge and Meteor Rise (South Atlantic). The mean…”
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Stacking paleointensity and oxygen isotope data for the last 1.5 Myr (PISO-1500) by Channell, J.E.T., Xuan, C., Hodell, D.A.

“…Coupled relative geomagnetic paleointensity (RPI) and oxygen isotope records are used to construct RPI and oxygen isotope stacks for the last 1.5 Myr. The…”
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New insights from multi-proxy data from the West Antarctic continental rise: Implications for dating and interpreting Late Quaternary palaeoenvironmental records by Hillenbrand, C.-D., Crowhurst, S.J., Williams, M., Hodell, D.A., McCave, I.N., Ehrmann, W., Xuan, C., Piotrowski, A.M., Hernández-Molina, F.J., Graham, A.G.C., Grobe, H., Williams, T.J., Horrocks, J.R., Allen, C.S., Larter, R.D.

“…The Antarctic Peninsula’s Pacific margin is one of the best studied sectors of the Antarctic continental margin. Since the 1990s, several research cruises have…”
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Deglacial changes in flow and frontal structure through the Drake Passage by Roberts, J., McCave, I.N., McClymont, E.L., Kender, S., Hillenbrand, C.-D., Matano, R., Hodell, D.A., Peck, V.L.

“…•A spatial picture of the deglacial evolution of Drake Passage through-flow.•The sub-Antarctic Front did not extend through Drake Passage prior to 15…”
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Relative paleointensity (RPI) and age control in Quaternary sediment drifts off the Antarctic Peninsula by Channell, J.E.T., Xuan, C., Hodell, D.A., Crowhurst, S.J., Larter, R.D.

“…Lack of foraminiferal carbonate in marine sediments deposited at high latitudes results in traditional oxygen isotope stratigraphy not playing a central role…”
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A 400-ka tephrochronological framework for Central America from Lake Petén Itzá (Guatemala) sediments by Kutterolf, S., Schindlbeck, J.C., Anselmetti, F.S., Ariztegui, D., Brenner, M., Curtis, J., Schmid, D., Hodell, D.A., Mueller, A., Pérez, L., Pérez, W., Schwalb, A., Frische, M., Wang, K.-L.

“…Lake Petén Itzá, northern Guatemala, lies within a hydrologically closed basin in the south-central area of the Yucatán Peninsula, and was drilled under the…”
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Coccolithophore variability from the Shackleton Site (IODP Site U1385) through MIS 16-10 by Maiorano, P., Marino, M., Balestra, B., Flores, J.-A., Hodell, D.A., Rodrigues, T.

“…Coccolithophore assemblages have been investigated at Integrated Ocean Drilling Program Site U1385, on the western Iberian margin, through Marine Isotope Stage…”
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A 750-kyr detrital-layer stratigraphy for the North Atlantic (IODP Sites U1302–U1303, Orphan Knoll, Labrador Sea) by Channell, J.E.T., Hodell, D.A., Romero, O., Hillaire-Marcel, C., de Vernal, A., Stoner, J.S., Mazaud, A., Röhl, U.

“…Integrated Ocean Drilling Program (IODP) Sites U1302–U1303, drilled on the SE flank of Orphan Knoll (Labrador Sea), preserve a record of detrital layers and…”
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Chemistry of oceans past and present: A Special Issue in tribute to Harry Elderfield, FRS (1943–2016) by Hodell, D.A., Greaves, M.J., McCave, I.N., Barker, S.

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Coupled ocean–land millennial-scale changes 1.26millionyears ago, recorded at Site U1385 off Portugal by Tzedakis, P.C., Margari, V., Hodell, D.A.

“…While a growing body of evidence indicates that North Atlantic millennial-scale climate variability extends to the Early Pleistocene, its impact on terrestrial…”
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Relative geomagnetic paleointensity and δ18O at ODP Site 983 (Gardar Drift, North Atlantic) since 350 ka by Channell, J.E.T., Hodell, D.A., Lehman, B.

“…At ODP Site 983, relative geomagnetic paleointensity and planktic and benthic δ 18O records have been acquired for the last 350 kyr. The mean sedimentation…”
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Online Differential Thermal Isotope Analysis of Hydration Water in Minerals by Cavity Ringdown Laser Spectroscopy by Bauska, T. K, Walters, G, Gázquez, F, Hodell, D. A

“…We have developed a new method for measuring the isotopic composition (δ18O and δD) of different types of bonded water (e.g., molecular water, hydroxyl)…”
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Comment on Mark et al. (2017): High-precision 40Ar/39Ar dating of Pleistocene tuffs and temporal anchoring of the Matuyama-Brunhes boundary. Quaternary Geochronology, 39, 1–23 by Channell, J.E.T., Hodell, D.A.

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Biogenic magnetite, detrital hematite, and relative paleointensity in Quaternary sediments from the Southwest Iberian Margin by Channell, J.E.T., Hodell, D.A., Margari, V., Skinner, L.C., Tzedakis, P.C., Kesler, M.S.

“…Magnetic properties of late Quaternary sediments on the SW Iberian Margin are dominated by bacterial magnetite, observed by transmission electron microscopy…”
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