Results 31 to 40 of about 32,656 (310)

Hydrothermal Activity at a Cretaceous Seamount, Canary Archipelago, Caused by Rejuvenated Volcanism

Frontiers in Marine Science, 2020
Our knowledge of venting at intraplate seamounts is limited. Almost nothing is known about past hydrothermal activity at seamounts, because indicators are soon blanketed by sediment.
Andreas Klügel, Heinrich Villinger, Miriam Römer, Miriam Römer, Norbert Kaul, Sebastian Krastel, Kai-Frederik Lenz, Paul Wintersteller, Paul Wintersteller   +8 more
doaj   +1 more source

Ar-40/Ar-39 dating of mesothermal, orogenic mineralization in a low-angle reverse shear zone in the Lower Palaeozoic of the Anglo-Brabant fold belt, Belgium [PDF]

, 2002
A
Boven, A., Dewaele, Stijn, Muchez, Ph.
core   +2 more sources

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

Space-weighted seismic attenuation mapping of the aseismic source of Campi Flegrei 1983-84 unrest [PDF]

, 2017
Peer reviewedPublisher ...
Amoruso, A, Castellano, M, Crescentini, L, De Siena, L, Del Pezzo, E, Wakeford, Z   +5 more
core   +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

When do we need pan-global freeze to explain ^(18)O-depleted zircons and rocks? [PDF]

, 2011
Rocks with δ^(18)O values of less than 5‰ SMOW (Standard Mean Ocean Water) contain oxygen derived from ∼0‰ seawater or meteoric (rain or melted snow,
Bindeman, Ilya
core   +1 more source

The Galapagos Spreading Centre: Lithospheric Cooling and Hydrothermal Circulation [PDF]

Geophysical Journal International, 1974
Summary The spatial pattern of cooling near a spreading ridge crest was investigated with a suite of 71 precisely-navigated heat-flow stations on the Galapagos spreading centre, East Pacific, near 86"W longitude. Stations are on crust less than 1.0 My old on which bathymetry and sediment distribution are well known.
D. L. Williams, R. P. Von Herzen, J. G. Sclater, R. N. Anderson   +3 more
openaire   +4 more sources

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

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