-
861
Metal Accumulations in Two Extreme-Environment Amphipods, Hadal <i>Eurythenes gryllus</i> and Antarctic <i>Pseudorchomene plebs</i>
Published 2023-07-01“…The concentrations of Cu, Zn, As, and Se in the three tissues all had a significant difference in abundance, and the Cd in the gut of <i>P. plebs</i> was comparably higher than that in <i>E. gryllus,</i> consistent with special environment adaptation. Compared with non-abyssal and shallow water decapoda and amphipoda species, hadal amphipods possessed comparably higher concentrations of Cd and Cr elements and displayed a very high environmental specificity for amphipods’ metal-element bioaccumulation strategy. …”
Get full text
Article -
862
ACCESS-OM2 v1.0: a global ocean–sea ice model at three resolutions
Published 2020-02-01“…We find that higher resolution is an advantage in resolving flow through small straits, the structure of western boundary currents, and the abyssal overturning cell but that there is scope for improvements in sub-grid-scale parameterizations at the highest resolution.…”
Get full text
Article -
863
Global Hydrogen Production During High‐Pressure Serpentinization of Subducting Slabs
Published 2023-10-01“…To overcome this difficulty, we design a methodology to quantify and offer a first‐order estimate of the magnitude of “slab‐serpentinization” that has occurred over the last 5 Ma within the world's subduction zones by coupling four discrete tectonic and geophysical datasets—(a) raster grids of relic abyssal peridotite (peridotite exhumed from slow spreading mid‐ocean ridges but unaffected by pre‐subduction serpentinization) within ocean basins, (b) slab geometry, (c) thermal profiles and a (d) plate‐tectonic model. …”
Get full text
Article -
864
Bathymetry of Valdivia Bank, Walvis Ridge, South Atlantic Ocean: Implications for Structure and Geologic History of a Hot Spot Plateau
Published 2022-11-01“…As sediments accumulated on the shallow platforms, sediment transport systems developed as gullies, channels and mass transport deposits carved valleys and troughs, shedding sediment into abyssal fans at the plateau base. The new bathymetric map demonstrates that oceanic plateaus are geologically active long after initial emplacement.…”
Get full text
Article -
865
The Sources of Organic Carbon in the Deepest Ocean: Implication From Bacterial Membrane Lipids in the Mariana Trench Zone
Published 2021-04-01“…Hadal trenches have higher microbial carbon turnover rates as compared to adjacent abyssal plains. However, the source of organic carbon in the trench remains enigmatic. …”
Get full text
Article -
866
X-ray Computed Tomography Analysis of Ferromanganese Nodule Nuclei from the Western North Pacific Ocean: Insights into Their Origins
Published 2023-05-01“…Here, we analyzed the nuclei of 934 ferromanganese nodules from the abyssal seafloor around Minamitorishima Island (western North Pacific Ocean) using X-ray computed tomography (CT). …”
Get full text
Article -
867
Automatic Hierarchical Classification of Kelps Using Deep Residual Features
Published 2020-01-01“…Across the globe, remote image data is rapidly being collected for the assessment of benthic communities from shallow to extremely deep waters on continental slopes to the abyssal seas. Exploiting this data is presently limited by the time it takes for experts to identify organisms found in these images. …”
Get full text
Article -
868
On the Importance of Surface Forcing in Conceptual Models of the Deep Ocean
Published 2014“…The oceanographic community's conceptual understanding of the deep stratification and MOC has evolved from classic “abyssal recipes” arguments to a more recent appreciation of along-isopycnal upwelling in the Southern Ocean, consistent with a weakly mixed ocean interior. …”
Get full text
Get full text
Article -
869
THE GREAT LISBON EARTHQUAKE AND TSUNAMI OF 1 NOVEMBER 1755 Evaluation of the Compression Convergence Mechanism
Published 2021-02-01“…Its epicenter was off the southwest coast of Portugal in the abyssal plain close to the Gorringe Bank along the Azores-Gibraltar fracture zone (AGFZ), which has been created by complex tectonic interactions between the Eurasian, African and Iberian plates. …”
Get full text
Article -
870
Global diversity of marine isopods (except Asellota and crustacean symbionts).
Published 2012-01-01“…More species are known from the bathyal and abyssal Antarctic than Arctic GOODS provinces, and more from the larger Pacific than Atlantic oceans. …”
Get full text
Article -
871
Deep-Sea Echinoid Trails and Seafloor Nutrient Distribution: Present and Past Implications
Published 2022-05-01“…We used an 18-yr time series photographic record from 4100-m depth at an abyssal site in the eastern North Pacific (Sta. M; 34°50′N, 123°00′W; 4100 m depth). …”
Get full text
Article -
872
Early Eocene deep-sea benthic foraminiferal faunas: Recovery from the Paleocene Eocene Thermal Maximum extinction in a greenhouse world.
Published 2018-01-01“…We compiled Ypresian benthic foraminiferal data from 17 middle bathyal-lower abyssal ocean drilling sites in the Pacific, Atlantic and Indian Oceans, in order to characterise early Eocene deep-sea faunas by comparing assemblages across space, paleodepth and time. …”
Get full text
Article -
873
Evolutionary pathways for deep-sea adaptation in marine planktonic Actinobacteriota
Published 2023-05-01“…Diversity in the genus UBA9410 was higher, with genomospecies widely distributed in temperate zones, others in polar regions, and the only genomospecies associated with abyssal zones (>4,000 m). At the functional level, groups beyond the epipelagic zone have a more complex transcriptional regulation including in their genomes a unique WhiB paralog. …”
Get full text
Article -
874
An Integrative Taxonomic Survey of Benthic Foraminiferal Species (Protista, Rhizaria) from the Eastern Clarion-Clipperton Zone
Published 2023-10-01“…The abyssal Pacific Clarion Clipperton Zone (CCZ) hosts vast, commercially valuable seafloor deposits of polymetallic nodules. …”
Get full text
Article -
875
Hydrothermal Production of H2 and Magnetite From Steel Slags: A Geo-Inspired Approach Based on Olivine Serpentinization
Published 2019-03-01“…The hydrothermal behavior of steel slags which arise from basic oxygen furnace (BOF) operations and that of olivine (Mg,Fe)2SiO4, the main mineral constituent of abyssal peridotites, are described here based on data from the literature. …”
Get full text
Article -
876
Distribution of calcifying and silicifying phytoplankton in relation to environmental and biogeochemical parameters during the late stages of the 2005 North East Atlantic Spring Bl...
Published 2009-10-01“…Coccolithophores dominated the phytoplankton community, with a large distribution over the Rockall-Hatton Plateau (RHP) and IB. The Porcupine Abyssal Plain (PAP) region at the southern end of our transect was the region with the lowest biomass, as demonstrated by very low Chl<i>a</i> concentrations and a community dominated by picophytoplankton. …”
Get full text
Article -
877
OESbathy version 1.0: a method for reconstructing ocean bathymetry with generalized continental shelf-slope-rise structures
Published 2015-09-01“…Our motivation is to develop a methodology for reconstructing ocean bathymetry in the geologic past that includes heterogeneous continental margins in addition to abyssal ocean floor. First, the plate cooling model is applied to maps of ocean crustal age to calculate depth to basement. …”
Get full text
Article -
878
Machine Learning‐Derived Inference of the Meridional Overturning Circulation From Satellite‐Observable Variables in an Ocean State Estimate
Published 2023-04-01“…The approach achieves a higher skill in predicting the model Southern Ocean abyssal MOC than has previously been achieved via a dynamically‐based approach. …”
Get full text
Article -
879
The study of mineral chemistry of the Harzburgite in the Noorabad-Harsin ophiolite complex: Evidence from the evolution of partial melting of mantle peridotite from the deep ocean...
Published 2020-04-01“…The chemical compositions of different minerals show different petrogenesis for ultramafic rocks of the Noorabad- Harsin ophiolite complex and show characteristics of the abyssal environment to supra-subduction zone. It seems these peridotites have derived by high degree partial melting of the depleted and sub-oceanic mantle in a supra-subduction zone-Fore arc and have same properties with residual mantle peridotites.…”
Get full text
Article -
880
Petrology of Yaluninogorsk granitoid massive (Alapaevsk-Sukhoi Log porphyry copper zone, Middle Urals)
Published 2018-02-01“…Petrological study of Yaluninogorsk massif shows, that is formed by holocrystalline rocks of meso-abyssal facies, varying from quartz-gabbro-diorites to tonalities, accompanied by veined trondhjemites. …”
Get full text
Article