Results 11 to 20 of about 1,688 (169)
Geophysical Monograph Series, Page 435-447., 2021 Exploring the links between Large Igneous Provinces and dramatic environmental impact
An emerging consensus suggests that Large Igneous Provinces (LIPs) and Silicic LIPs (SLIPs) are a significant driver of dramatic global environmental and biological changes, including mass extinctions.
Peter E. Marshall +2 more
wiley +3 more sources
Hydrothermal Convection in Moderately Thin Spherical Shells [PDF]
Physical Review Letters, 2008 Hydrothermal convection of pore water with a temperature-dependent viscosity within a permeable, internally heated, moderately thin spherical shell is investigated by both a perturbation analysis and a direct numerical simulation. The analysis and simulation are mainly focused on a thin spherical shell in that convective instabilities are characterized
Dai, Zifeng +3 more
openaire +3 more sources
Particle entrainment and rotating convection in Enceladus’ ocean
Communications Earth & Environment, 2023 Observations from Cassini have identified nanometer-sized silica grains in Saturn’s E-ring although their origin is unclear. Tidal deformation within Enceladus’ silicate core has been predicted to generate hot hydrothermal fluids that rise from the core ...
Ashley M. Schoenfeld +5 more
doaj +1 more source
Physical balances in subseafloor hydrothermal convection cells [PDF]
Journal of Geophysical Research: Solid Earth, 2004 We use a simplified model of convection in a porous medium to investigate the balances of mass and energy within a subseafloor hydrothermal convection cell. These balances control the steady state structure of the system and allow scalings for the height, permeability, and residence time of the “reaction zone” at the base of the cell to be calculated ...
Tim E. Jupp, Adam Schultz
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Energies, 2020 A considerable number of rock bodies with varying percentages of supercritical fluid exist around the brittle–ductile transition (BDT) zone at a depth of several kilometers from the surface of the Earth, in northeastern Japan.
Yota Suzuki +2 more
doaj +1 more source
Frontiers in Environmental Science, 2022 As the heat exchange interface between atmosphere and permafrost, land cover regulates the influence of climate warming on permafrost. With the development of desertification on the Qinghai-Tibetan Plateau (QTP), aeolian sand has emerged as a significant
Tianli Lan +5 more
doaj +1 more source
Application of Improved Blocked-Off Method to Simulate the Interacting Influences of Obstacle Shape and Wall Velocity on the Turbulent Mixed Convection Flow in a Trapezoidal Cavity [PDF]
International Journal of Advanced Design and Manufacturing Technology, 2022 In the current research, interaction influences of obstacle shape and top wall velocity on the hydrothermal behaviours of the turbulent mixed convection flow in a trapezoidal cavity are numerically simulated.
Meysam Atashafrooz
doaj +1 more source
Chaotic thermohaline convection in low-porosity hydrothermal systems [PDF]
Earth and Planetary Science Letters, 1999 Fluids circulate through the Earth's crust perhaps down to depths as great as 5^15 km, based on oxygen isotope systematics of exhumed metamorphic terrains, geothermal fields, mesozonal batholithic rocks and analysis of obducted ophiolites. Hydrothermal flows are driven by both thermal and chemical buoyancy; the former in response to the geothermal ...
Schoofs, Stan +2 more
openaire +3 more sources
Hydrothermal alteration of kimberlite by convective flows of external water [PDF]
Contributions to Mineralogy and Petrology, 2014 Kimberlite volcanism involves the emplacement of olivine-rich volcaniclastic deposits into volcanic vents or pipes. Kimberlite deposits are typically pervasively serpentinised as a result of the reaction of olivine and water within a temperature range of 130-400 °C or less.
Afanasyev, A. A. +4 more
openaire +3 more sources
Energies, 2014 This paper defines the maximum possible vertical extent of hydrothermal circulation in granitic crust, and thus the maximum depth within which geothermal reservoirs can be encountered. To evaluate prospective geothermal fields we constructed a geothermal
Yota Suzuki +2 more
doaj +1 more source