Noble gas systematics in new popping rocks from the Mid-Atlantic Ridge (14°N): Evidence for small-scale upper mantle heterogeneities
Sign Up to like & getrecommendations! Published in 2019 at "Earth and Planetary Science Letters"
DOI: 10.1016/j.epsl.2019.04.037
Abstract: Abstract The origin and evolution of terrestrial volatiles is a fundamental question in Earth and planetary sciences. To better address this, it is necessary to estimate the present-day isotopic and elemental composition of volatiles in… read more here.
Keywords: gas; upper mantle; noble gas; systematics ... See more keywords
A dynamic lithosphere–asthenosphere boundary near the equatorial Mid-Atlantic Ridge
Sign Up to like & getrecommendations! Published in 2021 at "Earth and Planetary Science Letters"
DOI: 10.1016/j.epsl.2021.116949
Abstract: Abstract In plate tectonic theory a weak asthenosphere is required to facilitate the motions of the rigid plates. Partial melt could weaken the mantle, in turn impacting convection, but to date the existence of persistent… read more here.
Keywords: melt; equatorial mid; ridge; near equatorial ... See more keywords
Ancient refractory asthenosphere revealed by mantle re-melting at the Arctic Mid Atlantic Ridge
Sign Up to like & getrecommendations! Published in 2021 at "Earth and Planetary Science Letters"
DOI: 10.1016/j.epsl.2021.116981
Abstract: Abstract The upper mantle is a heterogeneous mixture of refractory and recycled crustal domains. The recycled portions, more fertile and thus preferentially melted, dominate the composition of the basalts erupted on the surface, whereas the… read more here.
Keywords: mantle; refractory; ridge; mid atlantic ... See more keywords
Variability in iron (II) oxidation kinetics across diverse hydrothermal sites on the northern Mid Atlantic Ridge
Sign Up to like & getrecommendations! Published in 2021 at "Geochimica et Cosmochimica Acta"
DOI: 10.1016/j.gca.2021.01.013
Abstract: Abstract One of the recently recognized main sources of iron to the deep ocean inventory is the hydrothermal activity associated with mid-ocean ridges. Little is known about the oxidation kinetics of iron(II) within these environments,… read more here.
Keywords: atlantic ridge; oxidation; oxidation kinetics; iron oxidation ... See more keywords
Recovery of hydrothermal vent communities in response to an induced disturbance at the Lucky Strike vent field (Mid-Atlantic Ridge).
Sign Up to like & getrecommendations! Published in 2021 at "Marine environmental research"
DOI: 10.1016/j.marenvres.2021.105316
Abstract: So far, the natural recovery of vent communities at large scales has only been evaluated at fast spreading centers, by monitoring faunal recolonisation after volcanic eruptions. However, at slow spreading ridges, opportunities to observe natural… read more here.
Keywords: vent communities; vent; disturbance; mid atlantic ... See more keywords
Sulfur and copper isotopic composition of seafloor massive sulfides and fluid evolution in the 26°S hydrothermal field, Southern Mid-Atlantic Ridge
Sign Up to like & getrecommendations! Published in 2021 at "Marine Geology"
DOI: 10.1016/j.margeo.2021.106436
Abstract: Abstract In-situ sulfur isotopic compositions of morphologically different pyrites from the SMAR (southern Mid-Atlantic Ridge) 26°S hydrothermal field integrated with S and Cu isotopic values in chalcopyrite reflect a recurring flux of magmatic-hydrothermal fluids. The… read more here.
Keywords: southern mid; ridge; sulfur; mid atlantic ... See more keywords
The Mid‐Atlantic Ridge Near 13°20′N: High‐Resolution Magnetic and Bathymetry Imaging
Sign Up to like & getrecommendations! Published in 2019 at "Geochemistry, Geophysics, Geosystems"
DOI: 10.1029/2018gc007940
Abstract: We describe detailed magnetic and bathymetric studies around 13°N on the Mid‐Atlantic Ridge, a site of extensive detachment faulting. Inversion of closely spaced sea surface magnetic anomalies reveals a disorganized pattern of magnetization, with anomalies… read more here.
Keywords: resolution magnetic; mid atlantic; magnetization; bathymetry ... See more keywords
Sediment Characterization at the Equatorial Mid‐Atlantic Ridge From P‐to‐S Teleseismic Phase Conversions Recorded on the PI‐LAB Experiment
Sign Up to like & getrecommendations! Published in 2018 at "Geophysical Research Letters"
DOI: 10.1029/2018gl080565
Abstract: Abstract Accurate marine sediment characteristics, for example, thickness and seismic velocity, are important for constraining sedimentation rates with implications for climate variations and for seismic imaging of deeper structures using ocean bottom seismic deployments. We… read more here.
Keywords: atlantic ridge; sediment; phase conversions; lab experiment ... See more keywords
Mantle thermal structure at northern Mid–Atlantic ridge from improved numerical methods and boundary conditions
Sign Up to like & getrecommendations! Published in 2019 at "Geophysical Journal International"
DOI: 10.1093/gji/ggz488
Abstract: We computed mantle flow and thermal structure beneath a segment of the northern Mid-Atlantic ridge using numerical simulations adopting asymmetric spreading and ridge migration as boundary conditions. The objective is to obtain new insights on… read more here.
Keywords: mid atlantic; boundary conditions; northern mid; ridge ... See more keywords
Thermococcus camini sp. nov., a hyperthermophilic and piezophilic archaeon isolated from a deep-sea hydrothermal vent at the Mid-Atlantic Ridge.
Sign Up to like & getrecommendations! Published in 2021 at "International journal of systematic and evolutionary microbiology"
DOI: 10.1099/ijsem.0.004853
Abstract: A coccoid-shaped, strictly anaerobic, hyperthermophilic and piezophilic organoheterotrophic archaeon, strain Iri35cT, was isolated from a hydrothermal chimney rock sample collected at a depth of 2300 m at the Mid-Atlantic Ridge (Rainbow vent field). Cells of strain… read more here.
Keywords: mid atlantic; camini nov; hyperthermophilic piezophilic; strain iri35ct ... See more keywords
New Findings of the Rare Species Rondeletia bicolor (Stephanoberycoidei) Over the Mid-Atlantic Ridge and Some Peculiarities of the Rondeletiidae Family’s Phylologeny
Sign Up to like & getrecommendations! Published in 2020 at "Journal of Ichthyology"
DOI: 10.1134/s0032945220010075
Abstract: New morphometric data on the rare mesobathypelagic species Rondeletia bicolor (Rondeletiidae) caught over the central part of the Mid-Atlantic ridge in the depth range 2500–0 m are presented. An analysis of the phylogenetic relationships of… read more here.
Keywords: rondeletia bicolor; species rondeletia; bicolor; mid atlantic ... See more keywords