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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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  • Drenzek, Nicholas J. (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 2007-06)
    This thesis employs compound-specific stable carbon and radiocarbon isotopic analysis of organic biomarkers to (a) resolve petrogenic from pre-aged vascular plant organic carbon (OC) in continental margin sediments, (b) ...
  • van de Flierdt, Tina; Robinson, Laura F.; Adkins, Jess F.; Hemming, Sidney R.; Goldstein, Steven L. (American Geophysical Union, 2006-11-25)
    The neodymium isotopic composition of marine precipitates is increasingly recognized as a powerful tool for identifying changes in ocean circulation and mixing on million year to millennial time-scales. Unlike nutrient ...
  • Gonneea, Meagan E. (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 2014-02)
    At the land-ocean interface, terrestrial groundwater interacts with seawater to form a subterranean estuary, which can play host to dynamic biogeochemical cycling of nutrients, trace metals and radionuclides. This ...
  • Bertrand, Sebastien; Castiaux, Julie; Juvigne, Etienne (2008-05-29)
    We document the mineralogical and geochemical composition of tephra layers identified in the late Quaternary sediments of Puyehue Lake (Southern Volcanic Zone of the Andes, Chile, 40°S) to identify the source volcanoes ...
  • Dahl, Kristina A.; Oppo, Delia W.; Eglinton, Timothy I.; Hughen, Konrad A.; Curry, William B.; Sirocko, Frank (2005-01-04)
    We have determined the accumulation rates and carbon isotopic compositions (δ13C) of long-chain (C24–C32) terrigenous plant wax fatty acids in 19 surface sediment samples geographically distributed throughout the Arabian ...
  • Savoye, Nicolas; Benitez-Nelson, Claudia R.; Burd, Adrian B.; Cochran, J. Kirk; Charette, Matthew A.; Buesseler, Ken O.; Jackson, George A.; Roy-Barman, Matthieu; Schmidt, Sabine; Elskens, Marc (2005-10-10)
    Over the past few decades, the radioisotope pair of 238U/234Th has been widely and increasingly used to describe particle dynamics and particle export fluxes in a variety of aquatic systems. The present paper is one of ...
  • Buesseler, Ken O.; Pike, Steven M.; Maiti, Kanchan; Lamborg, Carl H.; Siegel, David A.; Trull, Thomas W. (2009-03-27)
    An extensive 234Th data set was collected at two sites in the North Pacific: ALOHA, an oligotrophic site near Hawaii, and K2, a mesotrophic HNLC site in the NW Pacific as part of the VERTIGO (VERtical Transport in the ...
  • Santschi, P. H.; Murray, James W.; Baskaran, Mark; Benitez-Nelson, Claudia R.; Guo, L. D.; Hung, C.-C.; Lamborg, Carl H.; Moran, S. B.; Passow, U.; Roy-Barman, Matthieu (2005-07)
    Since the 1960’s, thorium isotopes occupy a special place in the oceanographer’s toolbox as tracers for determining rates and mechanisms of oceanic scavenging, particle dynamics, and carbon fluxes. Due to their unique ...
  • Lima, Ivan D.; Doney, Scott C. (American Geophysical Union, 2004-09-21)
    We incorporate multinutrient and size-structured ecosystem dynamics into a three-dimensional ocean general circulation model for the North Atlantic. The model reproduces the magnitude and general spatial and temporal ...
  • Baschek, Burkard; Farmer, David M.; Garrett, Christopher (Sears Foundation for Marine Research, 2006-07)
    Tidal fronts are a common feature of many coastal environments. They are characterized by a surface convergence zone that enhances wave breaking and the generation of gas bubbles due to wave-current interaction. The ...
  • Kusch, Stephanie; Eglinton, Timothy I.; Mix, Alan C.; Mollenhauer, Gesine (2009-12)
    Paired radiocarbon measurements on haptophyte biomarkers (alkenones) and on cooccurring tests of planktic foraminifera (Neogloboquadrina dutertrei and Globogerinoides sacculifer) from late glacial to Holocene sediments ...
  • Sylvan, Jason B.; Pyenson, Benjamin C.; Rouxel, Olivier J.; German, Christopher R.; Edwards, Katrina J. (2011-12-05)
    We deployed sediment traps adjacent to two active hydrothermal vents at 9°50’N on the East Pacific Rise (EPR) to assess variability in bacterial community structure associated with plume particles on the time scale of ...
  • Lovenduski, Nicole S.; Gruber, Nicolas; Doney, Scott C. (American Geophysical Union, 2008-08-16)
    We investigate the multidecadal and decadal trends in the flux of CO2 between the atmosphere and the Southern Ocean using output from hindcast simulations of an ocean circulation model with embedded biogeochemistry. The ...
  • Hilmi, Nathalie; Allemand, Denis; Dupont, Sam; Safa, Alain; Haraldsson, Gunnar; Nunes, Paulo A. L. D.; Moore, Chris; Hattam, Caroline; Reynaud, Stephanie; Hall-Spencer, Jason M.; Fine, Maoz; Turley, Carol; Jeffree, Ross; Orr, James C.; Munday, Philip L.; Cooley, Sarah R. (Springer, 2012-08-21)
    Ocean acidification is increasingly recognized as a component of global change that could have a wide range of impacts on marine organisms, the ecosystems they live in, and the goods and services they provide humankind. ...
  • Charette, Matthew A.; Sholkovitz, Edward R. (2005-10-17)
    Submarine groundwater discharge (SGD) is an important source of dissolved elements to the ocean, yet little is known regarding the chemical reactions that control their flux from sandy coastal aquifers. The net flux of ...
  • Collier, Robert William (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 1980-11)
    Plankton samples have been carefully collected from a variety of marine environments under the rigorous conditions necessary to prevent contamination for major and trace-chemical analysis. Immediately after collection, ...
  • Voss, Britta M.; Peucker-Ehrenbrink, Bernhard; Eglinton, Timothy I.; Fiske, Gregory J.; Wang, Zhaohui Aleck; Hoering, Katherine A.; Montlucon, Daniel B.; LeCroy, Chase; Pal, Sharmila; Marsh, Steven; Gillies, Sharon L.; Janmaat, Alida; Bennett, Michelle; Downey, Bryce; Fanslau, Jenna; Fraser, Helena; Macklam-Harron, Garrett; Martinec, Michelle; Wiebe, Brayden (2013-07-19)
    The Fraser River basin in southwestern Canada bears unique geologic and climatic features which make it an ideal setting for investigating the origins, transformations and delivery to the coast of dissolved riverine loads ...
  • Dyhrman, Sonya T.; Jenkins, Bethany D.; Rynearson, Tatiana A.; Saito, Mak A.; Mercier, Melissa L.; Alexander, Harriet; Whitney, LeAnn P.; Drzewianowski, Andrea; Bulygin, Vladimir V.; Bertrand, Erin M.; Wu, Zhijin; Benitez-Nelson, Claudia R.; Heithoff, Abigail (Public Library of Science, 2012-03-29)
    Phosphorus (P) is a critical driver of phytoplankton growth and ecosystem function in the ocean. Diatoms are an abundant class of marine phytoplankton that are responsible for significant amounts of primary production. ...
  • Repeta, Daniel J. (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 1982-08)
    In an effort to understand the more general mechanisms and rates of pre-depositional reactions that transform organic matter, the types and relevant time scales of reactions that transform carotenoid pigments in the oceanic ...
  • Munson, Kathleen M. (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 2014-02)
    Methylation of mercury (Hg) in the marine water column has been hypothesized to serve as the primary source of the bioaccumulating chemical species monomethylmercury (MMHg) to marine food webs. Despite decades of research ...

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