Search Results - "Ruppel, C."
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Permafrost-Associated Gas Hydrate: Is It Really Approximately 1 % of the Global System?
Published in Journal of chemical and engineering data (12-02-2015)“…Permafrost-associated gas hydrates are often assumed to contain ∼1 % of the global gas-in-place in gas hydrates based on a study published over three decades…”
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Widespread methane leakage from the sea floor on the northern US Atlantic margin
Published in Nature geoscience (01-09-2014)“…Methane emissions from the sea floor affect ocean chemistry and can reach the atmosphere. Observations from the northern US Atlantic margin reveal about 570…”
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Morphology, genesis, and distribution of nanometer-scale pores in siliceous mudstones of the Mississippian Barnett Shale
Published in Journal of sedimentary research (01-12-2009)“…Research on mudrock attributes has increased dramatically since shale-gas systems have become commercial hydrocarbon production targets. One of the most…”
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Spectrum of pore types and networks in mudrocks and a descriptive classification for matrix-related mudrock pores
Published in AAPG bulletin (01-06-2012)“…Matrix-related pore networks in mudrocks are composed of nanometer- to micrometer-size pores. In shale-gas systems, these pores, along with natural fractures,…”
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5
Mechanical properties of sand, silt, and clay containing tetrahydrofuran hydrate
Published in Journal of Geophysical Research - Solid Earth (01-04-2007)“…The mechanical behavior of hydrate‐bearing sediments subjected to large strains has relevance for the stability of the seafloor and submarine slopes, drilling…”
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Microwave Acoustic Wave Devices: Recent Advances on Architectures, Modeling, Materials, and Packaging
Published in IEEE transactions on microwave theory and techniques (01-10-2018)“…This paper reviews applications of acoustic wave devices in mobile communication. After a general and historical introduction to bulk acoustic wave (BAW) and…”
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Timescales and Processes of Methane Hydrate Formation and Breakdown, With Application to Geologic Systems
Published in Journal of geophysical research. Solid earth (01-08-2020)“…Gas hydrate is an ice‐like form of water and low molecular weight gas stable at temperatures of roughly −10°C to 25°C and pressures of ~3 to 30 MPa in geologic…”
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High-resolution stratigraphy and facies architecture of the Upper Cretaceous (Cenomanian-Turonian) Eagle Ford Group, central Texas
Published in AAPG bulletin (01-03-2016)“…Rock-based studies of the Eagle Ford Group of Central Texas demonstrate that mudrock deposition is more complicated than previously supposed. X-ray…”
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Permeability evolution during the formation of gas hydrates in marine sediments
Published in Journal of Geophysical Research - Solid Earth (01-09-2003)“…Fluxes of gas, energy, and fluid (water with dissolved gas) are known to control the distribution of gas hydrate and free gas in gas hydrate reservoirs, but…”
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Hydrate Formation on Marine Seep Bubbles and the Implications for Water Column Methane Dissolution
Published in Journal of geophysical research. Oceans (01-09-2021)“…Methane released from seafloor seeps contributes to a number of benthic, water column, and atmospheric processes. At seafloor seeps within the methane hydrate…”
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Scientific results from Gulf of Mexico Gas Hydrates Joint Industry Project Leg 1 drilling: Introduction and overview
Published in Marine and petroleum geology (01-11-2008)“…The Gulf of Mexico Gas Hydrates Joint Industry Project (JIP) is a consortium of production and service companies and some government agencies formed to address…”
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Dynamics of submarine groundwater discharge and associated fluxes of dissolved nutrients, carbon, and trace gases to the coastal zone (Okatee River estuary, South Carolina)
Published in Geochimica et cosmochimica acta (15-04-2014)“…Multiple techniques, including thermal infrared aerial remote sensing, geophysical and geological data, geochemical characterization and radium isotopes, were…”
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Insights into methane dynamics from analysis of authigenic carbonates and chemosynthetic mussels at newly-discovered Atlantic Margin seeps
Published in Earth and planetary science letters (01-09-2016)“…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…”
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Compressional and shear wave velocities in uncemented sediment containing gas hydrate
Published in Geophysical research letters (01-05-2005)“…The competing hypotheses for gas hydrate formation at the particle scale in sediments describe processes of pore‐filling, frame‐building, or cementation. New…”
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Submarine Permafrost Map in the Arctic Modeled Using 1‐D Transient Heat Flux (SuPerMAP)
Published in Journal of geophysical research. Oceans (01-06-2019)“…Offshore permafrost plays a role in the global climate system, but observations of permafrost thickness, state, and composition are limited to specific…”
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Parametric study of the physical properties of hydrate-bearing sand, silt, and clay sediments: 2. Small-strain mechanical properties
Published in Journal of Geophysical Research: Solid Earth (01-11-2010)“…The small‐strain mechanical properties (e.g., seismic velocities) of hydrate‐bearing sediments measured under laboratory conditions provide reference values…”
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Foreword of the second special issue on “Soil Governance”
Published in Soil security (01-09-2024)“…This second special issue is an expression of what ten years ago nobody would have thought being possible: Soils have become what they deserve to be, a…”
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Seabed fluid expulsion along the upper slope and outer shelf of the U.S. Atlantic continental margin
Published in Geophysical research letters (16-01-2014)“…Identifying the spatial distribution of seabed fluid expulsion features is crucial for understanding the substrate plumbing system of any continental margin. A…”
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Parametric study of the physical properties of hydrate-bearing sand, silt, and clay sediments: 1. Electromagnetic properties
Published in Journal of Geophysical Research: Solid Earth (01-11-2010)“…The marked decrease in bulk electrical conductivity of sediments in the presence of gas hydrates has been used to interpret borehole electrical resistivity…”
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Soil protection and legal aspects of international trade in agriculture in times of climate change: The WTO dimension
Published in Soil security (01-03-2022)“…Soils are essential for food security and the right to food. But where is the connect between soil, trade in agriculture and the rules of the World Trade…”
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