Now showing items 3301-3320 of 7199

  • Insights into crustal assimilation by Icelandic basalts from boron isotopes in melt inclusions from the 1783–1784 Lakagígar eruption 

    Brounce, Maryjo; Feineman, Maureen; LaFemina, Peter; Gurenko, Andrey A. (2012-06-20)
    The boron isotope system has great potential for tracing alteration and assimilation in basaltic systems due to the very low concentrations of B in mantle-derived melts and the strong isotopic contrast between the mantle ...
  • Insights into foraminiferal influences on microfabrics of microbialites at Highborne Cay, Bahamas 

    Bernhard, Joan M.; Edgcomb, Virginia P.; Visscher, Pieter T.; McIntyre-Wressnig, Anna; Summons, Roger E.; Bouxsein, Mary L.; Louis, Leeann; Jeglinski, Marleen (2013-03-15)
    Microbialites, which are organosedimentary structures formed by microbial communities through binding and trapping and/or in situ precipitation, have a wide array of distinctive morphologies and long geologic record. The ...
  • Insights into the phylogeny and coding potential of microbial dark matter 

    Rinke, Christian; Schwientek, Patrick; Sczyrba, Alexander; Ivanova, Natalia N.; Anderson, Iain J.; Cheng, Jan-Fang; Darling, Aaron; Malfatti, Stephanie A.; Swan, Brandon K.; Gies, Esther A.; Dodsworth, Jeremy A.; Hedlund, Brian P.; Tsiamis, Georgios; Sievert, Stefan M.; Liu, Wen-Tso; Eisen, Jonathan A.; Hallam, Steven J.; Kyrpides, Nikos C.; Stepanauskas, Ramunas; Rubin, Edward M.; Hugenholtz, Philip; Woyke, Tanja (Nature Publishing Group, 2013-07-14)
    Genome sequencing enhances our understanding of the biological world by providing blueprints for the evolutionary and functional diversity that shapes the biosphere. However, microbial genomes that are currently available ...
  • Insights into vitamin B12 production, acquisition, and use by marine microbes 

    Bertrand, Erin M. (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 2012-02)
    The distribution and magnitude of marine primary production helps determine the ocean's role in global carbon cycling. Constraining factors that impact this productivity and elucidating selective pressures that drive the ...
  • Insights on coccolith chemistry from a new ion probe method for analysis of individually picked coccoliths 

    Stoll, Heather M.; Shimizu, Nobumichi; Arevalos, Alicia; Matell, Nora; Banasiak, Adam; Zeren, Seth (American Geophysical Union, 2007-06-30)
    The elemental chemistry of calcareous nannofossils may provide valuable information on past ocean conditions and coccolithophorid physiology, but artifacts from noncoccolith particles and from changing nannofossil assemblages ...
  • Insights on geochemical cycling of U, Re and Mo from seasonal sampling in Boston Harbor, Massachusetts, USA 

    Morford, Jennifer L.; Martin, William R.; Kalnejais, Linda H.; Francois, Roger; Bothner, Michael H.; Karle, Ida-Maja (2006-10-23)
    This study examined the removal of U, Mo, and Re from seawater by sedimentary processes at a shallow-water site with near-saturation bottom water O2 levels (240-380 μmol O2/L), very high organic matter oxidation rates ...
  • Insights on the OAFlux ocean surface vector wind analysis merged from scatterometers and passive microwave radiometers (1987 onward) 

    Yu, Lisan; Jin, Xiangze (John Wiley & Sons, 2014-08-19)
    A high-resolution global daily analysis of ocean surface vector winds (1987 onward) was developed by the Objectively Analyzed air-sea Fluxes (OAFlux) project. This study addressed the issues related to the development of ...
  • Insights to magmatic–hydrothermal processes in the Manus back-arc basin as recorded by anhydrite 

    Craddock, Paul R.; Bach, Wolfgang (2010-06-16)
    Microchemical analyses of rare earth element (REE) concentrations and Sr and S isotope ratios of anhydrite are used to identify sub–seafloor processes governing the formation of hydrothermal fluids in the convergent ...
  • Instabilities of an eastern boundary current with and without large-scale flow influence 

    Wang, Jinbo (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 2011-06)
    Eastern oceanic boundary currents are subject to hydrodynamic instability, generate small scale features that are visible in satellite images and may radiate westward into the interior, where they can be modified by the ...
  • Instability and energetics in a baroclinic ocean 

    Kim, Kuh (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 1975-08)
    This thesis is made of two separate, but interrelated parts. In Part I the instability of a baroclinic Rossby wave in a two-layer ocean of inviscid fluid without topography, is investigated and its results are applied ...
  • Instability and finite-amplitude self-organization of large-scale coastline shapes 

    Murray, A. Brad; Ashton, Andrew D. (2012-12-21)
    Recent research addresses the formation of patterns on sandy coastlines on alongshore scales that are large compared with the cross-shore extent of active sediment transport. A simple morphodynamic instability arises from ...
  • Instability and freezing in a solidifying melt conduit 

    Holmes-Cerfon, Miranda C.; Whitehead, John A. (2010-10-23)
    Previous works have shown that when liquid flows in a pipe whose boundary temperature is below freezing, a tubular drainage conduit forms surrounded by solidified material that freezes shut under the appropriate combination ...
  • Instability of an idealized tidal mixing front : symmetric instabilities and frictional effects 

    Brink, Kenneth H.; Cherian, Deepak A. (Sears Foundation for Marine Research, 2013-11-01)
    Finite amplitude instability of an idealized tidal mixing front is considered for cases where there is an active symmetric instability during the early stages of evolution. This can happen either when the initial front is ...
  • Instrumentation for open ocean aquaculture monitoring 

    Irish, James D.; Carroll, Megan; Singer, Robin C.; Newhall, Arthur E.; Paul, Walter; Johnson, Craig; Witzell, Nick; Rice, Glen; Fredriksson, David W. (Woods Hole Oceanographic Institution, 2001-10)
    The Woods Hole Oceanographic Institution is assisting the University of New Hampshire by instrumenting a fish cage and mooring as part of their Open Ocean Aquaculture demonstration program in the Gulf of Maine. To understand ...
  • Intake flow fields for a zooplankton pump sampling system 

    Brooks, James Ray (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 1979-08)
    The flow fields entering intake forms oriented into a steady flume flow has been observed and quantified. This data is applied to a model of zooplankton sampler performance, to predict the fraction of the sampled ...
  • IntCal04 terrestrial radiocarbon age calibration, 0-26 cal kyr BP 

    Reimer, Paula J.; Baillie, Mike G. L.; Bard, Edouard; Bayliss, Alex; 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.; Hogg, Alan G.; Hughen, Konrad A.; Kromer, Bernd; McCormac, Gerry; Manning, Sturt; Ramsey, C. Bronk; 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)
    A new calibration curve for the conversion of radiocarbon ages to calibrated (cal) ages has been constructed and internationally ratified to replace IntCal98, which extended from 0–24 cal kyr BP (Before Present, 0 cal BP ...
  • IntCal09 and Marine09 radiocarbon age calibration curves, 0–50,000 years cal BP 

    Reimer, Paula J.; Baillie, Mike G. L.; Bard, Edouard; Bayliss, Alex; Beck, J. Warren; Blackwell, Paul G.; Ramsey, C. Bronk; Buck, Caitlin E.; Burr, George S.; Edwards, R. Lawrence; Friedrich, Michael; Grootes, P. M.; Guilderson, Thomas P.; Hajdas, Irka; Heaton, T. J.; Hogg, Alan G.; Hughen, Konrad A.; Kaiser, K. F.; Kromer, Bernd; McCormac, F. G.; Manning, S. W.; Reimer, Ron W.; Richards, D. A.; Southon, John R.; Talamo, Sahra; Turney, C. S. M.; van der Plicht, Johannes; Weyhenmeyer, Constanze E. (Dept. of Geosciences, University of Arizona, 2009-12)
    The IntCal04 and Marine04 radiocarbon calibration curves have been updated from 12 cal kBP (cal kBP is here defined as thousands of calibrated years before AD 1950), and extended to 50 cal kBP, utilizing newly available ...
  • An integrated assessment model for helping the United States sea scallop (Placopecten magellanicus) fishery plan ahead for ocean acidification and warming 

    Cooley, Sarah R.; Rheuban, Jennie E.; Hart, Deborah R.; Luu, Victoria; Glover, David M.; Hare, Jonathan A.; Doney, Scott C. (Public Library of Science, 2015-05-06)
    Ocean acidification, the progressive change in ocean chemistry caused by uptake of atmospheric CO2, is likely to affect some marine resources negatively, including shellfish. The Atlantic sea scallop (Placopecten magellanicus) ...