Results 21 to 30 of about 5,374 (232)

A New Alpine Metallogenic Model for the Pb-Ag Orogenic Deposits of Macôt-la Plagne and Peisey-Nancroix (Western Alps, France)

Geosciences, 2022
Understanding mass transfer associated with fluids circulation and deformation in the Alpine orogeny is often complex due to common multistage crystallization. For example, in two emblematic and historic Pb-Ag deposits of the French Alps, Macôt-la Plagne
Maxime Bertauts, Emilie Janots, Magali Rossi, Isabelle Duhamel-Achin, Marie-Christine Boiron, Laura Airaghi, Pierre Lanari, Philippe Lach, Chantal Peiffert, Valérie Magnin   +9 more
doaj   +1 more source

New Insights into Hydrothermal Fluid Circulation Affected by Regional Groundwater Flow in the Asal Rift, Republic of Djibouti

Energies, 2021
The Asal Rift hosts a lake located in a depression at 150 m below sea level, where recharge is influenced by regional groundwater flow interacting with the Ghoubbet Sea along the coast of Djibouti.
Abdek Hassan Aden, Jasmin Raymond, Bernard Giroux, Bernard Sanjuan   +3 more
doaj   +1 more source

Characterization of Geochemistry in Hydrothermal Sediments From the Newly Discovered Onnuri Vent Field in the Middle Region of the Central Indian Ridge

Frontiers in Marine Science, 2022
The recently discovered Onnuri hydrothermal vent field (OVF) is a typical off-axis ultramafic-hosted vent system, located on the summit of the dome-like ocean core complex (OCC) at a distance of ∼12 km from the ridge axis along the middle region of the ...
Dhongil Lim, Dhongil Lim, Jihun Kim, Jihun Kim, Wonnyon Kim, Jonguk Kim, Dongsung Kim, Le Zhang, Kyungun Kwack, Zhaokai Xu, Zhaokai Xu, Zhaokai Xu   +11 more
doaj   +1 more source

Thermally Significant Fluid Seepage Through Thick Sediment on the Juan de Fuca Plate Entering the Cascadia Subduction Zone

Geochemistry, Geophysics, Geosystems, 2023
We use heat flux measurements colocated with seismic reflection profiles over a buried basement high on the Juan de Fuca plate ∼25 km seaward of the deformation front offshore Oregon to test for the presence of hydrothermal circulation in the oceanic ...
Benjamin Norvell, Thomas Kyritz, Glenn A. Spinelli, Robert N. Harris, Kristin Dickerson, Anne M. Tréhu, Suzanne Carbotte, Shuoshuo Han, Brian Boston, Michelle Lee, The CHINOoK Project Science Party   +10 more
doaj   +1 more source

Can Marine Hydrothermal Vents Be Used as Natural Laboratories to Study Global Change Effects on Zooplankton in a Future Ocean?

Journal of Marine Science and Engineering, 2023
It is claimed that oceanic hydrothermal vents (HVs), particularly the shallow water ones, offer particular advantages to better understand the effects of future climate and other global change on oceanic biota. Marine hydrothermal vents (HVs) are extreme
Hans-Uwe Dahms, Subramani Thirunavukkarasu, Jiang-Shiou Hwang   +2 more
doaj   +1 more source

Structural and Mineralogical Characterization of a Fossil Hydrothermal System Located at the Outermost Front of the Southern Apennines Fold-and-Thrust Belt

Geofluids, 2019
Aiming at investigating the hydrothermal circulation along the eastern flank of the Vulture volcano, along the outermost edge of the southern Apennine fold-and-thrust belt (ftb), we studied the fossil hydrothermal alteration that mineralized a ...
Paolo Fulignati, Fabrizio Agosta, Claudia Belviso, Giacomo Prosser, Antonio Lettino, Angela Vita Petrullo, Francesco Cavalcante   +6 more
doaj   +1 more source

Development of geothermal field following the 2000 eruption of Usu volcano as revealed by ground temperature, resistivity and self-potential variations

Annals of Geophysics, 2007
The 2000 eruption of Usu volcano, NE Japan, took place on the foot of the somma, and formed a cryptodome of 65 m high accompanying numerous faults.
T. Mogi, N. Matsushima, S. Takakura, Y. Nishida, M. Saba   +4 more
doaj   +1 more source

Heat Flow Evidence for Hydrothermal Circulation in Oceanic Crust Offshore Grays Harbor, Washington

Geochemistry, Geophysics, Geosystems, 2020
We report 30 new conductive heat flow measurements collected on the Juan de Fuca plate, offshore of Grays Harbor, Washington, just seaward of the deformation front. The data were collected along Cascadia Open‐Access Seismic Transect Lines 4 and 5.
Robert N. Harris, Glenn A. Spinelli, Michael Hutnak   +2 more
doaj   +1 more source

Sediment mixing in the tropical Pacific and radiolarian stratigraphy

Geochemistry, Geophysics, Geosystems, 2012
The reworking of older radiolarian microfossils into near‐surface sediments of the tropical Pacific has long been the source of confusion for the development of radiolarian stratigraphy and of puzzlement over the mechanism(s) that could effect such ...
Ted C. Moore Jr., Larry A. Mayer, Mitchell Lyle   +2 more
doaj   +1 more source

Geochemical and visual indicators of hydrothermal fluid flow through a sediment-hosted volcanic ridge in the Central Bransfield Basin (Antarctica). [PDF]

PLoS ONE, 2013
In the austral summer of 2011 we undertook an investigation of three volcanic highs in the Central Bransfield Basin, Antarctica, in search of hydrothermal activity and associated fauna to assess changes since previous surveys and to evaluate the extent ...
Alfred Aquilina, Douglas P Connelly, Jon T Copley, Darryl R H Green, Jeffrey A Hawkes, Laura E Hepburn, Veerle A I Huvenne, Leigh Marsh, Rachel A Mills, Paul A Tyler   +9 more
doaj   +1 more source