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Browsing Marine Chemistry and Geochemistry (MC&G) by Title

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Browsing Marine Chemistry and Geochemistry (MC&G) by Title

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  • Reeves, Eoghan P. (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 2010-06)
    This thesis presents the results of four discrete investigations into processes governing the organic and inorganic chemical composition of seafloor hydrothermal fluids in a variety of geologic settings. Though Chapters ...
  • Peucker-Ehrenbrink, Bernhard (American Geophysical Union, 2009-06-20)
    The Land2Sea database contains data on the sizes of 1519 exorheic river drainage basins (79% of the exorheic land area), annual suspended sediment fluxes (593 rivers, 63% of the exorheic land area), and water discharges ...
  • Sachs, P. L.; Hammar, Terence R.; Bacon, Michael (Woods Hole Oceanographic Institution, 1989-11)
    Eight self-contained, in-situ pumps have been used effectively and routinely by our group for the past six years to collect both particulate and dissolved phases from large volumes of sea water. Multiple pumps are rapidly ...
  • Dalai, Tarun K.; Ravizza, Gregory E.; Peucker-Ehrenbrink, Bernhard (2005-09-12)
    High resolution records (ca. 100 kyr) of Os isotope composition (187Os/188Os) in bulk sediments from two tropical Pacific sites (ODP Sites 1218 and 1219) capture the complete Late Eocene 187Os/188Os excursion and confirm ...
  • Kromer, Bernd; Friedrich, Michael; Hughen, Konrad A.; Kaiser, Felix; Remmele, Sabine; Schaub, Matthias; Talamo, Sahra (Dept. of Geosciences, University of Arizona, 2004)
    We built a floating, 1382-ring pine chronology covering the radiocarbon age interval of 12,000 to 10,650 BP. Based on the strong rise of Δ14C at the onset of the Younger Dryas (YD) and wiggle-matching of the decadal-scale ...
  • Sepulveda, Julio; Pantoja, Silvio; Hughen, Konrad A.; Bertrand, Sebastien; Figueroa, Dante; Leon, Tania; Drenzek, Nicholas J.; Lange, Carina B. (2009-06-12)
    A high-resolution multi-proxy study including the elemental and isotopic composition of bulk organic matter, land plant-derived biomarkers, and alkenone-based sea surface temperature (SST) from a marine sedimentary record ...
  • Hecky, Robert E.; Degens, Egon T. (Woods Hole Oceanographic Institution, 1973-05)
    The interaction of climate and geology in Central Africa during Late Pleistocene and Holocene is examined. The study is based on sedimentological and limnological work on the main lakes of the Western Branch of the East ...
  • Hwang, Jeomshik; Eglinton, Timothy I.; Krishfield, Richard A.; Manganini, Steven J.; Honjo, Susumu (American Geophysical Union, 2008-06-12)
    Understanding the processes driving the carbon cycle in the Arctic Ocean is important for assessing the impacts of the predicted rapid and amplified climate change in this region. We analyzed settling particle samples ...
  • Toole, Dierdre A.; Siegel, David A. (American Geophysical Union, 2004-05-06)
    The factors driving dimethylsulfide (DMS) cycling in oligotrophic environments are isolated using a time-series of DMS sampled in the Sargasso Sea. The observed distribution of DMS is inconsistent with bottom-up processes ...
  • Toole, Dierdre A.; Siegel, David A.; Doney, Scott C. (American Geophysical Union, 2008-04-12)
    We evaluate the extent to which dimethylsulfide (DMS) cycling in an open-ocean environment can be constrained and parameterized utilizing emerging evidence for the significant impacts of solar ultraviolet radiation (UVR) ...
  • Tivey, Margaret K.; Becker, Erin; Beinart, Roxanne; Fisher, Charles R.; Girguis, Peter R.; Langmuir, Charles H.; Michael, Peter J.; Reysenbach, Anna-Louise (The Oceanography Society, 2012-03)
    The Lau Integrated Study Site (ISS) has provided unique opportunities for study of ridge processes because of its back-arc setting in the southwestern Pacific. Its location allows study of a biogeographical province distinct ...
  • Kneeland, Jessie M.; Hughen, Konrad A.; Cervino, J.; Hauff, B.; Eglinton, Timothy I. (2013-06-13)
    Lipid content and fatty acid profiles of corals and their dinoflagellate endosymbionts are known to vary in response to high temperature stress. To better understand the heat stress response in these symbionts, we investigated ...
  • Kneeland, Jessie M. (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 2011-06)
    Corals are increasingly threatened by warming sea surface temperatures and other anthropogenic changes. The delicate symbiosis between corals and their algal endosymbionts (zooxanthellae) is easil ...
  • Galy, Valier; France-Lanord, Christian; Lartiges, Bruno (2008-01-26)
    We use the evolution of river sediment characteristics and sedimentary Corg from the Himalayan range to the delta to study the transport of Corg in the Ganga-Brahmaputra system and especially its fate during floodplain ...
  • Culbertson, Jennifer B.; Valiela, Ivan; Peacock, Emily E.; Reddy, Christopher M.; Carter, Anna; VanderKruik, Rachel (2007)
    In September 1969,the Florida barge spilled 700,000 L of No. 2 fuel oil into the salt marsh sediments of Wild Harbor (Buzzards Bay, MA). Today the aboveground environment appears unaffected, but a substantial amount of ...
  • Pichat, Sylvain; Sims, Kenneth W. W.; Francois, Roger; McManus, Jerry F.; Leger, Susan Brown; Albarede, Francis (American Geophysical Union, 2004-12-16)
    The (231Pa/230Th)xs,0 records obtained from two cores from the western (MD97-2138; 1°25′S, 146°24′E, 1900 m) and eastern (Ocean Drilling Program Leg 138 Site 849, 0°11.59′N, 110°31.18′W, 3851 m) equatorial Pacific display ...
  • Druffel, Ellen R. M.; Robinson, Laura F.; Griffin, Sheila; Halley, Robert B.; Southon, John R.; Adkins, Jess F. (American Geophysical Union, 2008-05-13)
    The 14C reservoir age of the surface ocean was determined for two Holocene periods (4908–4955 and 3008–3066 calendar (cal) B.P.) using U/Th-dated corals from Biscayne National Park, Florida, United States. We found that ...
  • Aguirre, J. Dafhne; Clark, Hillary M.; McIlvin, Matthew R.; Vazquez, Christine; Palmere, Shaina L.; Grab, Dennis J.; Seshu, J.; Hart, P. John; Saito, Mak A.; Culotta, Valeria C. (2013-01-28)
    The Lyme disease pathogen Borrelia burgdorferi represents a novel organism in which to study metalloprotein biology in that this spirochete has uniquely evolved with no requirement for iron. Not only is iron low, but we ...
  • Srinivasan, Ashwanth; Top, Zafer; Schlosser, Peter; Hohmann, Roland; Iskandarani, Mohamed; Olson, Donald B.; Lupton, John E.; Jenkins, William J. (American Geophysical Union, 2004-06-10)
    The World Ocean Circulation Experiment Indian Ocean helium isotope data are mapped and features of intermediate and deep circulation are inferred and discussed. The 3He added to the deep Indian Ocean originates from (1) a ...
  • Hughen, Konrad A.; Baillie, Mike G. L.; Bard, Edouard; Beck, J. Warren; Bertrand, Chanda J. H.; Blackwell, Paul G.; Buck, Caitlin E.; Burr, George S.; Cutler, Kirsten B.; Damon, Paul E.; Edwards, R. Lawrence; Fairbanks, Richard G.; Friedrich, Michael; Guilderson, Thomas P.; Kromer, Bernd; McCormac, Gerry; Manning, Sturt; Ramsey, C. Bronk; Reimer, Paula J.; Reimer, Ron W.; Remmele, Sabine; Southon, John R.; Stuiver, Minze; Talamo, Sahra; Taylor, F. W.; van der Plicht, Johannes; Weyhenmeyer, Constanze E. (Dept. of Geosciences, University of Arizona, 2004)
    New radiocarbon calibration curves, IntCal04 and Marine04, have been constructed and internationally ratified to replace the terrestrial and marine components of IntCal98. The new calibration data sets extend an additional ...

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