Recent Submissions

  • Demersal fish assemblages on seamounts and other rugged features in the northeastern Caribbean 

    Quattrini, Andrea M.; Demopoulos, Amanda W. J.; Singer, Randal; Roa-Varon, Adela; Chaytor, Jason D. (2017-03)
    Recent investigations of demersal fish communities in deepwater (>50 m) habitats have considerably increased our knowledge of the factors that influence the assemblage structure of fishes across mesophotic to deep-sea ...
  • Extreme waves in the British Virgin Islands during the last centuries before 1500 CE 

    Atwater, Brian F.; ten Brink, Uri S.; Cescon, Anna Lisa; Feuillet, Nathalie; Fuentes, Zamara; Halley, Robert S.; Nuñez, Carlos; Reinhardt, Eduard G.; Roger, Jean H.; Sawai, Yuki; Spiske, Michaela; Tuttle, Maritia P.; Wei, Yong; Weil-Accardo, Jennifer (Geological Society of America, 2017-03-17)
    Extraordinary marine inundation scattered clasts southward on the island of Anegada, 120 km south of the Puerto Rico Trench, sometime between 1200 and 1480 calibrated years (cal yr) CE. Many of these clasts were likely ...
  • The interaction of climate change and methane hydrates 

    Ruppel, Carolyn D.; Kessler, John D. (John Wiley & Sons, 2017-02-08)
    Gas hydrate, a frozen, naturally-occurring, and highly-concentrated form of methane, sequesters significant carbon in the global system and is stable only over a range of low-temperature and moderate-pressure conditions. ...
  • Subsea ice-bearing permafrost on the U.S. Beaufort Margin : 2. Borehole constraints 

    Ruppel, Carolyn D.; Herman, Bruce M.; Brothers, Laura L.; Hart, Patrick E. (John Wiley & Sons, 2016-11-04)
    Borehole logging data from legacy wells directly constrain the contemporary distribution of subsea permafrost in the sedimentary section at discrete locations on the U.S. Beaufort Margin and complement recent regional ...
  • Subsea ice-bearing permafrost on the U.S. Beaufort Margin : 1. Minimum seaward extent defined from multichannel seismic reflection data 

    Brothers, Laura L.; Herman, Bruce M.; Hart, Patrick E.; Ruppel, Carolyn D. (John Wiley & Sons, 2016-11-04)
    Subsea ice-bearing permafrost (IBPF) and associated gas hydrate in the Arctic have been subject to a warming climate and saline intrusion since the last transgression at the end of the Pleistocene. The consequent degradation ...
  • Distribution of crustal types in Canada Basin, Arctic Ocean 

    Chian, Deping; Jackson, H. Ruth; Hutchinson, Deborah R.; Shimeld, John W.; Oakey, Gordon N.; Lebedeva-Ivanova, Nina; Li, Qingmou; Saltus, Richard W.; Mosher, David C. (2016-06-27)
    Seismic velocities determined from 70 sonobuoys widely distributed in Canada Basin were used to discriminate crustal types. Velocities of oceanic layer 3 (6.7 -7.1 km/s), transitional (7.2-7.6 km/s) and continental crust ...
  • Observations of seismicity and ground motion in the Northeast U.S. Atlantic Margin from ocean‐bottom seismometer data 

    Flores, Claudia H.; ten Brink, Uri S.; McGuire, Jeffrey J.; Collins, John A. (Seismological Society of America, 2016-11-02)
    Earthquake data from two short‐period ocean‐bottom seismometer (OBS) networks deployed for over a year on the continental slope off New York and southern New England were used to evaluate seismicity and ground motions along ...
  • Determining the flux of methane into Hudson Canyon at the edge of methane clathrate hydrate stability 

    Weinstein, Alexander; Navarrete, Luis; Ruppel, Carolyn D.; Weber, Thomas C.; Leonte, Mihai; Kellermann, Matthias Y.; Arrington, Eleanor C.; Valentine, David L.; Scranton, Mary I.; Kessler, John D. (John Wiley & Sons, 2016-10-13)
    Methane seeps were investigated in Hudson Canyon, the largest shelf-break canyon on the northern U.S. Atlantic Margin. The seeps investigated are located at or updip of the nominal limit of methane clathrate hydrate ...
  • Finite-frequency wave propagation through outer rise fault zones and seismic measurements of upper mantle hydration 

    Miller, Nathaniel C.; Lizarralde, Daniel (John Wiley & Sons, 2016-08-14)
    Effects of serpentine-filled fault zones on seismic wave propagation in the upper mantle at the outer rise of subduction zones are evaluated using acoustic wave propagation models. Modeled wave speeds depend on azimuth, ...
  • Insights into methane dynamics from analysis of authigenic carbonates and chemosynthetic mussels at newly-discovered Atlantic Margin seeps 

    Prouty, Nancy G.; Sahy, Diana; Ruppel, Carolyn D.; Roark, E. Brendan; Condon, Daniel J.; Brooke, Sandra; Ross, Steve W.; Demopoulos, Amanda W. J. (Elsevier, 2016-06-03)
    The recent discovery of active methane venting along the US northern and mid-Atlantic margin represents a new source of global methane not previously accounted for in carbon budgets from this region. However, uncertainty ...
  • Ephemerality of discrete methane vents in lake sediments 

    Scandella, Benjamin; Pillsbury, Liam; Weber, Thomas C.; Ruppel, Carolyn D.; Hemond, Harold F.; Juanes, Ruben (John Wiley & Sons, 2016-05-04)
    Methane is a potent greenhouse gas whose emission from sediments in inland waters and shallow oceans may both contribute to global warming and be exacerbated by it. The fraction of methane emitted by sediments that bypasses ...
  • Colored dissolved organic matter in shallow estuaries : relationships between carbon sources and light attenuation 

    Oestreich, William K.; Ganju, Neil K.; Pohlman, John W.; Suttles, Steven E. (Copernicus Publications on behalf of the European Geosciences Union, 2016-02-02)
    Light availability is of primary importance to the ecological function of shallow estuaries. For example, benthic primary production by submerged aquatic vegetation is contingent upon light penetration to the seabed. A ...
  • Seismic velocities within the sedimentary succession of the Canada Basin and southern Alpha-Mendeleev Ridge, Arctic Ocean : evidence for accelerated porosity reduction? 

    Shimeld, John; Li, Qingmou; Chian, Deping; Lebedeva-Ivanova, Nina; Jackson, Ruth; Mosher, David; Hutchinson, Deborah R. (Oxford University Press, 2016-01)
    The Canada Basin and the southern Alpha-Mendeleev ridge complex underlie a significant proportion of the Arctic Ocean, but the geology of this undrilled and mostly ice-covered frontier is poorly known. New information is ...
  • Exploration of the canyon-incised continental margin of the northeastern United States reveals dynamic habitats and diverse communities 

    Quattrini, Andrea M.; Nizinski, Martha S.; Chaytor, Jason D.; Demopoulos, Amanda W. J.; Roark, E. Brendan; France, Scott C.; Moore, Jon A.; Heyl, Taylor; Auster, Peter J.; Kinlan, Brian; Ruppel, Carolyn D.; Elliott, Kelley P.; Kennedy, Brian R. C.; Lobecker, Elizabeth; Skarke, Adam; Shank, Timothy M. (Public Library of Science, 2015-10-28)
    The continental margin off the northeastern United States (NEUS) contains numerous, topographically complex features that increase habitat heterogeneity across the region. However, the majority of these rugged features ...
  • Nonequilibrium clumped isotope signals in microbial methane 

    Wang, David T.; Gruen, Danielle S.; Lollar, Barbara Sherwood; Hinrichs, Kai-Uwe; Stewart, Lucy C.; Holden, James F.; Hristov, Alexander N.; Pohlman, John W.; Morrill, Penny L.; Konneke, Martin; Delwiche, Kyle B.; Reeves, Eoghan P.; Sutcliffe, Chelsea N.; Ritter, Daniel J.; Seewald, Jeffrey S.; McIntosh, Jennifer C.; Hemond, Harold F.; Kubo, Michael D.; Cardace, Dawn; Hoehler, Tori M.; Ono, Shuhei (2015-02-09)
    Methane is a key component in the global carbon cycle with a wide range of anthropogenic and natural sources. Although isotopic compositions of methane have traditionally aided source identification, the abundance of its ...
  • Widespread gas hydrate instability on the upper U.S. Beaufort margin 

    Phrampus, Benjamin J.; Hornbach, Matthew J.; Ruppel, Carolyn D.; Hart, Patrick E. (John Wiley & Sons, 2014-12-09)
    The most climate-sensitive methane hydrate deposits occur on upper continental slopes at depths close to the minimum pressure and maximum temperature for gas hydrate stability. At these water depths, small perturbations ...
  • Radiocarbon age-offsets in an arctic lake reveal the long-term response of permafrost carbon to climate change 

    Gaglioti, Benjamin V.; Mann, Daniel H.; Jones, Benjamin M.; Pohlman, John W.; Kunz, Michael L.; Wooller, Matthew J. (John Wiley & Sons, 2014-08-22)
    Continued warming of the Arctic may cause permafrost to thaw and speed the decomposition of large stores of soil organic carbon (OC), thereby accentuating global warming. However, it is unclear if recent warming has raised ...
  • A framework for the probabilistic analysis of meteotsunamis 

    Geist, Eric L.; ten Brink, Uri S.; Gove, Matthew (Springer, 2014-06-19)
    A probabilistic technique is developed to assess the hazard from meteotsunamis. Meteotsunamis are unusual sea-level events, generated when the speed of an atmospheric pressure or wind disturbance is comparable to the phase ...
  • Assessment of tsunami hazard to the U.S. Atlantic margin 

    ten Brink, Uri S.; Chaytor, Jason D.; Geist, Eric L.; Brothers, Daniel S.; Andrews, Brian D. (Elsevier, 2014-03-22)
    Tsunami hazard is a very low-probability, but potentially high-risk natural hazard, posing unique challenges to scientists and policy makers trying to mitigate its impacts. These challenges are illustrated in this assessment ...
  • Seabed fluid expulsion along the upper slope and outer shelf of the U.S. Atlantic continental margin 

    Brothers, Daniel S.; Ruppel, Carolyn D.; Kluesner, J. W.; ten Brink, Uri S.; Chaytor, Jason D.; Hill, Jenna C.; Andrews, Brian D.; Flores, Claudia H. (John Wiley & Sons, 2014-01-08)
    Identifying the spatial distribution of seabed fluid expulsion features is crucial for understanding the substrate plumbing system of any continental margin. A 1100 km stretch of the U.S. Atlantic margin contains more than ...

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