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Filtering by: Alternative title ssim Seasonality of U-37(K)' temperature estimates as inferred from sediment trap data Remove constraint Alternative title ssim: Seasonality of U-37(K)' temperature estimates as inferred from sediment trap data Advisor Colwell, Frederick S. Remove constraint Advisor: Colwell, Frederick S. Decade 2010-2019 Remove constraint Decade: 2010-2019

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  • Geomicrobiology of marine sediment containing methane

    Creator:
    Briggs, Brandon R.
    Abstract:
    Marine sediments contain an abundance of methane that is biologically produced and plays a significant role in the global carbon cycle. Microbes responsible for the carbon cycle in marine sediments, and the processes that they carry out, need to be characterized in order to fully understand the role of this...
    Resource Type:
    Dissertation
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    ). ...........................................................................95
 Figure 3.3. NMS ordination of the data derived from T-RFLP analysis of Andaman Sea sediments

  • Establishment and dynamics of methane-oxidizing microbial communities in marine sediments

    Creator:
    Klasek, Scott A.
    Abstract:
    Marine sediments are vast sources and reservoirs of methane, a potent greenhouse gas. Most of this methane is anaerobically oxidized by archaea before it can reach the overlying ocean, though the efficiency of this process often depends on methane fluxes and mechanisms of fluid transport. Anaerobic methanotrophic archaea, or ANME,...
    Resource Type:
    Dissertation
    Full Text:
    flux as sediment conditions change are not well understood, but would help constrain estimates of

  • Characterizing drivers of microbial community structure and function in diverse marine sediments

    Creator:
    Graw, Michael F.
    Abstract:
    Marine sediments are one of the largest habitats for microbial life on earth. These microorganisms play critical roles in biogeochemical cycling both within the subsurface and between the sediment and water columns. However, microbial communities in sediments are highly heterogeneous and the factors defining microbial community structure and metabolic function...
    Resource Type:
    Dissertation
    Full Text:
    , and sediment physical properties of sediments from the South China Sea and the US Atlantic Margin

  • Microbiology of basalts targeted for deep geological carbon sequestration : field observations and laboratory experiments

    Creator:
    Lavalleur, Heather J.
    Abstract:
    With rising concentrations of CO₂ in the Earth's atmosphere causing concern about climate change, many solutions are being presented to decrease emissions. One of the proposed solutions is to sequester excess CO₂ in geological formations such as basalt. The deep subsurface is known to harbor much of the microbial biomass...
    Resource Type:
    Masters Thesis
    Full Text:
    act as a natural reservoir as CO2 from the atmosphere equilibrates with the surface waters of the

  • Microbial Community Dynamics of an Aquifer Biostimulated to Precipitate Calcite

    Creator:
    Ohan, Juliette
    Abstract:
    Microbial-induced calcite (CaCO₃) precipitation (MICP) is a well-known natural phenomenon where microbes precipitate calcite in their environment as a result of metabolic activity. It has recently been of interest as a bioengineered technique to stabilize soils for construction applications. A known metabolic pathway to induce MICP is ureolysis, where introduced...
    Resource Type:
    Masters Thesis
    Full Text:
    -known natural phenomenon where microbes precipitate calcite in their environment as a result of

  • Impact of Igneous Mineralogy on the Composition and Metabolic Function of Microbial Biofilms in a Thermal Suboceanic Crustal Aquifer

    Creator:
    Smith, Amy R.
    Abstract:
    Igneous oceanic crust encompasses ~60% of Earth’s surface and is composed of basalt glass and mafic, ultramafic, and felsic minerals. A vast marine aquifer lies within the crust, exchanging geochemically altered fluids with seawater from the overlying ocean at ridge crests, flanks, seamounts, and outcrops where permeable crust is exposed....
    Resource Type:
    Dissertation
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    ………………………………………......... 36 Data Processing……………………………………………………………… 37 Removal of Laboratory Contaminants from Sequence