Now showing items 647-666 of 1197

    • Mantle plume-midocean ridge interaction : geophysical observations and mantle dynamics 

      Ito, Garrett T. (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 1996-09)
      We analyze bathymetric and gravity anomalies at five plume-ridge systems to constrain crustal and mantle density structure at these prominent oceanic features. Numerical models are then used to explore the physical ...
    • Mantle upwelling, melt generation, and magma transport beneath mid-ocean ridges 

      Magde, Laura S. (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 1997-03)
      The formation of new oceanic crust is the result of a complex geodynamic system in which mantle rises beneath spreading centers and undergoes decompression melting. The melt segregates from the matrix and is focused to ...
    • Manus 2006 : hydrothermal systems in the Eastern Manus Basin: fluid chemistry and magnetic structure as guides to subseafloor processes 

      Tivey, Maurice A.; Bach, Wolfgang; Seewald, Jeffrey S.; Tivey, Margaret K.; Vanko, David A. (Woods Hole Oceanographic Institution, 2006)
      The hydrothermal systems in the Manus Basin of Papua New Guinea (PNG) were comprehensively investigated through a combination of sampling and mapping using the Remotely-Operated Vehicle (ROV) Jason, the autonomous ...
    • MapTool version 2 : user’s manual 

      Lemmond, Peter (Woods Hole Oceanographic Institution, 1994-05)
      MapTool is an interactive computer program for the display of common marine geophysical data. At present, the program displays isolines, color-filled contours, navigation tracklines, and navigated scalar values in a variety ...
    • The marine biogeochemistry of molybdenum 

      Tuit, Caroline Beth (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 2003-02)
      Prevailing wisdom holds that the vertical distribution of molybdenum (Mo) in the open ocean is conservative, despite Mo's important biological role and association with Mn oxides and anoxic sediments. Mo is used in both ...
    • Marine isotope stage 3 sea level fluctuations : data synthesis and new outlook 

      Siddall, M.; Rohling, E. J.; Thompson, William G.; Waelbroeck, Claire (American Geophysical Union, 2008-11-05)
      To develop a better understanding of the abrupt Dansgaard-Oeschger mode of climate change, it is essential that we establish whether the ice sheets are actively involved, as trigger or amplifier, or whether they merely ...
    • Mass coral mortality under local amplification of 2°C ocean warming 

      DeCarlo, Thomas M.; Cohen, Anne L.; Wong, George T. F.; Davis, Kristen A.; Lohmann, George P.; Soong, Keryea (Nature Publishing Group, 2017-03-23)
      A 2°C increase in global temperature above pre-industrial levels is considered a reasonable target for avoiding the most devastating impacts of anthropogenic climate change. In June 2015, sea surface temperature (SST) of ...
    • Massively parallel tag sequencing reveals the complexity of anaerobic marine protistan communities 

      Stoeck, Thorsten; Behnke, Anke; Christen, Richard; Amaral-Zettler, Linda A.; Rodriguez-Mora, Maria J.; Chistoserdov, Andrei Y.; Orsi, William D.; Edgcomb, Virginia P. (BioMed Central, 2009-11-03)
      Recent advances in sequencing strategies make possible unprecedented depth and scale of sampling for molecular detection of microbial diversity. Two major paradigm-shifting discoveries include the detection of bacterial ...
    • Mean and turbulent velocity fields near rigid and flexible plants and the implications for deposition 

      Ortiz, Alejandra C.; Ashton, Andrew D.; Nepf, Heidi M. (John Wiley & Sons, 2013-12-24)
      The transport of fine sediment and organic matter plays an important role in the nutrient dynamics of shallow aquatic systems, and the fate of these particles is closely linked to vegetation. We describe the mean and ...
    • MEASURE : a program for morphometric measurements 

      Lazarus, David (Woods Hole Oceanographic Institution, 1986-10)
      'MEASURE', a FORTRAN77 program for collecting morphometric measurements, has been developed. Features of the program include the ability to accept distance and outline measurements in either 2 or 3 dimensions, to collect ...
    • Measurements of 220Rn and 222Rn and CO2 emissions in soil and fumarole gases on Mt. Etna volcano (Italy) : implications for gas transport and shallow ground fracture 

      Giammanco, S.; Sims, Kenneth W. W.; Neri, M. (American Geophysical Union, 2007-10-04)
      Measurements of 220Rn and 222Rn activity and of CO2 flux in soil and fumaroles were carried out on Mount Etna volcano in 2005–2006, both in its summit area and along active faults on its flanks. We observe an empirical ...
    • Measuring the form of iron in hydrothermal plume particles 

      Toner, Brandy M.; Marcus, Matthew A.; Edwards, Katrina J.; Rouxel, Olivier J.; German, Christopher R. (The Oceanography Society, 2012-03)
      The global mid-ocean ridge (MOR) system is a 60,000 km submarine volcanic mountain range that crosses all of the major ocean basins on Earth. Along the MOR, subseafloor seawater circulation exchanges heat and elements ...
    • Mechanical and geological controls on the long-term evolution of normal faults 

      Olive, Jean-Arthur L. (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 2015-02)
      This thesis investigates the long-term evolution of rift-bounding normal faults in extensional environments. My main objective is to develop a theoretical framework that explains the controls on maximum fault offset in ...
    • Mechanics and rates of tidal inlet migration : modeling and application to natural examples 

      Nienhuis, Jaap H.; Ashton, Andrew D. (John Wiley & Sons, 2016-11-10)
      Tidal inlets on barrier coasts can migrate alongshore hundreds of meters per year, often presenting great management and engineering challenges. Here we perform model experiments with migrating tidal inlets in Delft3D-SWAN ...
    • Mechanism for nitrogen isotope fractionation during ammonium assimilation by Escherichia coli K12 

      Vo, Jason; Inwood, William; Hayes, John M.; Kustu, Sydney (2013-03-25)
      Organisms that use ammonium as the sole nitrogen source discriminate between [15N] and [14N] ammonium. This selectivity leaves an isotopic signature in their biomass that depends on the external concentration of ammonium. ...
    • Mechanism for normal faulting in the subducting plate at the Mariana Trench 

      Zhou, Zhiyuan; Lin, Jian; Behn, Mark D.; Olive, Jean-Arthur L. (John Wiley & Sons, 2015-06-02)
      We investigate the mechanisms of normal fault initiation and evolution in the subducting Pacific Plate near the Mariana Trench, through bathymetry analysis and geodynamic modeling. We model the subducting plate as an ...
    • Mechanisms of degassing at Nevado del Ruiz volcano, Colombia 

      Stix, John; Layne, Graham D.; Williams, S. N. (Geological Society, 2003)
      Nevado del Ruiz volcano is an andesite stratovolcano located in the northern Andes of Colombia. The volcano erupted on 11 September 1985, 13 November 1985, and 1 September 1989. The last two eruptions emitted juvenile solid ...
    • Mechanisms of heat transport through the floor of the equatorial Pacific Ocean 

      Crowe, John (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 1981-02)
      The equatorial Pacific heat flow low, a major oceanic geothermal anomaly centered on the equatorial sediment bulge, was investigated using deeply penetrating heat flow probes (6-11 meters penetration) within three ...
    • Mechanisms of turbulent mixing in the Continental Shelf bottom boundary layer 

      Shaw, William J. (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 1999-09)
      The bottom boundary layer is an important dynamical region of shallow water flows. In this thesis, the problem of turbulent mixing in the coastal bottom boundary layer is investigated with a unique set of field measurements ...
    • The Medieval Climate Anomaly and Little Ice Age in Chesapeake Bay and the North Atlantic Ocean 

      Cronin, Thomas M.; Hayo, K.; Thunell, Robert C.; Dwyer, Gary S.; Saenger, Casey P.; Willard, D. A. (Elsevier B.V., 2010-08-22)
      A new 2400-year paleoclimate reconstruction from Chesapeake Bay (CB) (eastern US) was compared to other paleoclimate records in the North Atlantic region to evaluate climate variability during the Medieval Climate Anomaly ...