Results 31 to 40 of about 29,363 (158)

Impact-generated hydrothermal circulation and metasomatism of the rochechouart astrobleme: mineralogy and major and trace element distribution [PDF]

open access: yes, 2014
The energy released during a hypervelocity impact on Earth can generate high temperatures in the target rock. There are currently 170 known impact structures worldwide, of which over one-third contain fossil hydrothermal systems [1].
Lee, M.R., Lindgren, P., Simpson, S.S.L.
core  

EarthN: A new Earth System Nitrogen Model [PDF]

open access: yes, 2018
The amount of nitrogen in the atmosphere, oceans, crust, and mantle have important ramifications for Earth's biologic and geologic history. Despite this importance, the history and cycling of nitrogen in the Earth system is poorly constrained over time ...
Condie K. C.   +8 more
core   +3 more sources

Deep and High-temperature Hydrothermal Circulation in the Oman Ophiolite--Petrological and Isotopic Evidence [PDF]

open access: yesJournal of Petrology, 2004
A systematic search for evidence of high-temperature hydrous alteration within the gabbros of the Samail ophiolite (Oman) shows that most of the gabbros have been affected by successive stages of alteration, starting above 975°C and ending below 500°C. Sr and O isotopic analyses provide constraints on the nature and origin of the fluids associated with
Bosch, Delphine   +5 more
openaire   +5 more sources

A fault‐driven circulation model for the Lost City Hydrothermal Field [PDF]

open access: yesGeophysical Research Letters, 2017
AbstractThe Lost City Hydrothermal Field on the Atlantis Massif is an off‐axis hydrothermal system, hosted in serpentinized ultramafic and metagabbroic rocks, that discharges through high‐permeability faults and fractures. High‐pH fluids vent through carbonate chimneys with temperatures ranging between 24°C and 91°C, and vent fluid geochemistry ...
openaire   +2 more sources

Magma and fluid migration at Yellowstone Caldera in the last three decades inferred from InSAR, leveling and gravity measurements [PDF]

open access: yes, 2015
We studied the Yellowstone caldera geological unrest between 1977 and 2010 by investigating temporal changes in differential Interferometric Synthetic Aperture Radar (InSAR), precise spirit leveling and gravity measurements.
BATTAGLIA, MAURIZIO   +5 more
core   +1 more source

Analog and numerical models of hydrothermal circulation in the oceanic crust

open access: yes, 2020
Presentation file for the invited talk given by Eric Mittelstadt at Analog Modeling for Tectonic Processes 2020 ...
openaire   +1 more source

Sustaining Hydrothermal Circulation With Gravity Relevant to Ocean Worlds

open access: yesJournal of Geophysical Research: Planets
AbstractSome ocean worlds may sustain active, seafloor hydrothermal systems, but the characteristics and controls on fluid‐heat transport in these systems are not well understood. We developed three‐dimensional numerical simulations, using a ridge‐flank hydrothermal system on Earth as a reference, to test the influence of ocean world gravity on fluid ...
Fisher, A.   +5 more
openaire   +3 more sources

Three‐dimensional simulation of hydrothermal circulation at mid‐ocean ridges

open access: yesGeophysical Research Letters, 1991
Results of numerical simulations of three dimensional hydrothermal convection in a layered medium representative of mid‐ocean ridge environments are presented. Regional‐scale three dimensional flow patterns naturally arise from reasonable assumptions about permeability distributions and magnitude of base heating.
Bryan J. Travis   +2 more
openaire   +2 more sources

Hydrothermal Circulation and Volatile Distribution in The Oman Ophiolite [PDF]

open access: yesGoldschmidt2021 abstracts, 2021
Joelle D'Andres   +2 more
openaire   +1 more source

The Trans-Atlantic Geotraverse hydrothermal field : a hydrothermal system on an active detachment fault [PDF]

open access: yes, 2015
© The Author(s), 2015. This is the author's version of the work and is distributed under the terms of the Creative Commons Attribution License. The definitive version was published in Deep Sea Research Part II: Topical Studies in Oceanography 121 (2015):
Humphris, Susan E.   +2 more
core   +1 more source

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