Search Results - "McManus, J.F."

Deep Pacific storage of respired carbon during the last ice age: Perspectives from bottom water oxygen reconstructions by Jacobel, A.W., Anderson, R.F., Jaccard, S.L., McManus, J.F., Pavia, F.J., Winckler, G.

“…Reconstructions of past changes in dissolved oxygen concentrations in the abyssal ocean are of interest to paleoceanographers because of their potential to…”
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Sea-level and deep water temperature changes derived from benthic foraminifera isotopic records by Waelbroeck, C., Labeyrie, L., Michel, E., Duplessy, J.C., McManus, J.F., Lambeck, K., Balbon, E., Labracherie, M.

“…We show that robust regressions can be established between relative sea-level (RSL) data and benthic foraminifera oxygen isotopic ratios from the North…”
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Abrupt Climate Events 500,000 to 340,000 Years Ago: Evidence from Subpolar North Atlantic Sediments by Oppo, D. W., McManus, J. F., Cullen, J. L.

“…Subpolar North Atlantic proxy records document millennial-scale climate variations 500,000 to 340,000 years ago. The cycles have an approximately constant…”
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Authigenic uranium deposition in the glacial North Atlantic: Implications for changes in oxygenation, carbon storage, and deep water-mass geometry by Zhou, Y., McManus, J.F.

“…Oxygen in the ocean has essential ecological and climatic functions, and can be an important indicator of deep-ocean ventilation and carbon storage. Previous…”
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Climate-related response of dust flux to the central equatorial Pacific over the past 150 kyr by Jacobel, A.W., McManus, J.F., Anderson, R.F., Winckler, G.

“…High resolution paleoclimate records from low latitudes are critical for understanding the role of the tropics in transmitting and generating feedbacks for…”
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No iron fertilization in the equatorial Pacific Ocean during the last ice age by Costa, K. M., McManus, J. F., Anderson, R. F., Ren, H., Sigman, D. M., Winckler, G., Fleisher, M. Q., Marcantonio, F., Ravelo, A. C.

“…Core isotope measurements in the equatorial Pacific Ocean reveal that although atmospheric dust deposition during the last ice age was higher than today’s, the…”
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Sedimentation, stratigraphy and physical properties of sediment on the Juan de Fuca Ridge by Costa, K.M., McManus, J.F., Boulahanis, B., Carbotte, S.M., Winckler, G., Huybers, P.J., Langmuir, C.H.

“…Sedimentation near mid-ocean ridges may differ from pelagic sedimentation due to the influence of the ridges' rough topography on sediment deposition and…”
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Evidence from the Northeastern Atlantic basin for variability in the rate of the meridional overturning circulation through the last deglaciation by Gherardi, J.-M., Labeyrie, L., McManus, J.F., Francois, R., Skinner, L.C., Cortijo, E.

“…A first study from the subtropical western Atlantic, using 231Pa/ 230Th ratios as a kinematic proxy for deep water circulation, provided compelling evidence…”
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Comparison of changes in vegetation in northeast Greece with records of climate variability on orbital and suborbital frequencies over the last 450 000 years by Tzedakis, P.C., McManus, J.F., Hooghiemstra, H., Oppo, D.W., Wijmstra, T.A.

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What is what in the ice and the ocean? by Rousseau, D.-D., Kukla, G., McManus, J.

“…Recently released data from the North Greenland Ice core Project (NGRIP) document several rapid, abrupt climate changes affecting the Northern Hemisphere in…”
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Is vegetation responsible for glacial inception during periods of muted insolation changes? by Desprat, S., Sánchez Goñi, M.F., Turon, J.-L., McManus, J.F., Loutre, M.F., Duprat, J., Malaizé, B., Peyron, O., Peypouquet, J.-P.

“…The Marine Isotope Stage 11 interglacial, centred at ∼400 ka, appears to be the best candidate for understanding climatic changes in the context of low…”
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Transgenic mice that express Cre recombinase in osteoclasts by Chiu, W.S.M., McManus, J.F., Notini, A.J., Cassady, A.I., Zajac, J.D., Davey, R.A.

“…To study the physiological control of osteoclasts, the bone resorbing cells, we generated transgenic mice carrying the Cre recombinase gene driven by either…”
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Provenance of Heinrich layers in core V28-82, northeastern Atlantic: 40Ar/ 39Ar ages of ice-rafted hornblende, Pb isotopes in feldspar grains, and Nd–Sr–Pb isotopes in the fine sediment fraction by Hemming, S.R., Broecker, W.S., Sharp, W.D., Bond, G.C., Gwiazda, R.H., McManus, J.F., Klas, M., Hajdas, I.

“…Several correlatable layers of sediment, rich in ice rafted grains, have been documented in the North Atlantic. The most notable within the last glacial cycle…”
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Quartz content and the quartz-to-plagioclase ratio determined by X-ray diffraction: a proxy for ice rafting in the northern North Atlantic? by Moros, M., McManus, J.F., Rasmussen, T., Kuijpers, A., Dokken, T., Snowball, I., Nielsen, T., Jansen, E.

“…Many paleoceanographic reconstructions of the glacial North Atlantic include estimates of iceberg discharge, which are based on the variable abundance of…”
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High-resolution multi-molecular records from North Atlantic drift sediments (ODP Sites 980, 984) reflecting Late Quaternary/Holocene climate and ocean dynamics by Holtvoeth, J., Wagner, T., Johnson, C., Meggers, H., Mollenhauer, G., Montluçon, D., McManus, J.F., Oppo, D.W., Eglinton, T.I.

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40Ar/ 39Ar ages and 40Ar concentrations of fine-grained sediment fractions from North Atlantic Heinrich layers by Hemming, S.R, Hall, C.M, Biscaye, P.E, Higgins, S.M, Bond, G.C, McManus, J.F, Barber, D.C, Andrews, J.T, Broecker, W.S

“…New K/Ar ages based on 40Ar/ 39Ar incremental heating of <2- and 2–20-μm size fractions of the well-characterized, carbonate-bearing Heinrich layers of core…”
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