Results 31 to 40 of about 924,508 (327)

Paleo‐Permeability Structure of the Crustal Section of the Samail Ophiolite Based on Automated Detection of Veins in X‐Ray CT Core Images From the Oman Drilling Project

Geochemistry, Geophysics, Geosystems, 2023
To assess the paleo‐permeability structure of oceanic crust, we used 3‐D X‐ray Computed Tomography (XCT) images to quantify the distribution and geometry of mineral veins in core samples from Oman Drilling Project Holes GT1A, GT2A, and GT3A, which ...
Y. Akamatsu, I. Katayama, K. Okazaki, K. Michibayashi   +3 more
doaj   +1 more source

Fate of sulfate in seafloor hydrothermal systems: Insights from in situ observation of the liquid–liquid phase separation in hydrothermal fluids

Solid Earth Sciences, 2021
The ubiquitous hydrothermal circulation within the newly formed oceanic crust plays an important role in the transport of heat, water and chemical constituents in the earth-ocean-atmosphere system.
Xiaolin Wang, Ye Wan, I-Ming Chou
doaj   +1 more source

Long‐Term Observations of Subseafloor Temperatures and Pressures in a Low‐Temperature, Off‐Axis Hydrothermal System in North Pond on the Western Flank of the Mid‐Atlantic Ridge

Geochemistry, Geophysics, Geosystems, 2022
Basement formation pressures and temperatures were recorded from 1997 to 2017 in four sealed‐hole observatories in North Pond, an isolated ∼8 × 15 km sediment pond surrounded by thinly sedimented basement highs in 7–8 Ma crust west of the Mid‐Atlantic ...
K. Becker, E. E. Davis, H. Villinger
doaj   +1 more source

Heat flow, morphology, pore fluids and hydrothermal circulation in a typical Mid-Atlantic Ridge flank near Oceanographer Fracture Zone

, 2017
Virginie Le Gal, Francis Lucazeau, Mathilde Cannat, Jeffrey Poort, Christophe Monnin, Anne Battani, Fabrice J. Fontaine, Bruno Goutorbe, F. Rolandone, C. Poitou, Marie‐Madeleine Blanc‐Valleron, Aldina Piedade, Ana Hipólito   +12 more
openalex   +2 more sources

Geothermal Heating and its Influence on the Meridional Overturning Circulation [PDF]

, 2001
The effect of geothermal heating on the meridional overturning circulation is examined using an idealized, coarse-resolution ocean general circulation model.
Adcroft, Alistair Adcroft, Bryan, Cushman-Roisin, Emanuel, Gent, Helfrich, Huang, Jeffery R. Scott, Jeffreys, Jochem Marotzke, Joyce, Joyce, Kadko, Krishnamurti, Lupton, Lupton, Macdonald, Marotzke, Marotzke, Marotzke, Sandström, Sclater, Spall, Speer, Stein, Stommel, Stommel, Thompson   +28 more
core   +1 more source

Near-seafloor magnetic mapping of off-axis lava flows near the Kairei and Yokoniwa hydrothermal vent fields in the Central Indian Ridge [PDF]

, 2018
The Kairei (KHF) and Yokoniwa hydrothermal fields (YHF) are hosted in mafic as well as ultramafic rocks distributed at an off-axis volcanic knoll of the Central Indian Ridge.
Kyoko Okino, Masakazu Fujii
core   +2 more sources

A thermosyphon-driven hydrothermal flow-through cell for in situ and time-resolved neutron diffraction studies [PDF]

, 2010
A flow-through cell for hydrothermal phase transformation studies by in situ and time-resolved neutron diffraction has been designed and constructed.
Allan Pring, Andrew Studer, Barbara Etschmann, Barrer, Brian O'Neill, Brugger, Cahill, Carlson, Cavalcante, Christophe Tenailleau, Dokter, Etschmann, Evans, Fang Xia, Francis, Gerardin, Gujie Qian, Hurst, Jason Peak, Jorgensen, Joël Brugger, Kaneko, Karlsson, Kawamura, Kazarian, Kieke, Kolen'ko, Liu, Maslar, Mazzi, Norby, Norby, Norby, O'Neill, Putnis, Putnis, Rietveld, Savage, Scott Olsen, Sczancoski, Shrivastava, Studer, Tenailleau, Testemale, Toby, Walton, Walton, Webster, Williams, Xia, Xia, Xia, Xia, Yung Ngothai, Zhang, Zhao   +55 more
core   +3 more sources

The hydrothermal power of oceanic lithosphere [PDF]

Solid Earth, 2015
We have estimated the power of ventilated hydrothermal heat transport, and its spatial distribution, using a set of recently developed plate models which highlight the effects of axial hydrothermal circulation and thermal insulation by oceanic crust ...
C. J. Grose, J. C. Afonso
doaj   +1 more source

Sulfur and lead isotopic compositions of massive sulfides from deep-sea hydrothermal systems: Implications for ore genesis and fluid circulation

, 2016
Zhigang Zeng, Yao Ma, Shuai Chen, David Selby, Xiaoyuan Wang, Xue‐Bo Yin   +5 more
openalex   +3 more sources

Evidence for an impact-induced biosphere from the δ34S signature of sulphides in the Rochechouart impact structure, France [PDF]

, 2017
The highly eroded 23 km diameter Rochechouart impact structure, France, has extensive evidence for post-impact hydrothermal alteration and sulphide mineralization.
Boyce, A.J., Lambert, P., Lee, M.R., Lindgren, P., Simpson, S.L.   +4 more
core   +1 more source