Results 121 to 130 of about 36,286 (242)
Insights Into Microscale Biomineralization in Deep‐Sea Callogorgia Coral via Halogen Banding
Abstract Halogen incorporation into coral carbonate skeletons serves as a valuable proxy for reconstructing paleoenvironments. However, the underlying mechanisms remain poorly understood. This study employed femtosecond laser ablation‐inductively coupled plasma time‐of‐flight mass spectrometry (fs‐LA‐ICP‐TOFMS) to perform multi‐elemental (I, Br, P, Ca,
Xuna Yin +8 more
wiley +1 more source
Northeastern Atlantic benthic foraminifera during the last 45,000 years: Changes in productivity seen from the bottom up [PDF]
We studied benthic foraminifera from the last 45 kyr in the >63 mu m size fraction in Biogeochemical Ocean Flux Studies (BOFS) cores 5K (50 degrees 41.3'N, 21 degrees 51.9'W, depth 3547 m) and 14K (58 degrees 37.2'N, 19 degrees 26.2'W, depth 1756 m), at ...
Thomas, E +3 more
core
Abstract We investigate late Holocene changes in the northern Benguela Upwelling System using a multi‐proxy approach on shallow shelf deposits from the Namibian mud belt. Three sediment cores characterized by organic carbon‐rich, anoxic, and partly gas‐bearing sediments were retrieved along a sampling transect at 23°S in August 2019.
Michael Kossack +5 more
wiley +1 more source
Lost in translation: conserved amino acid usage despite extreme codon bias in foraminifera
Analyses of codon usage in eukaryotes suggest that amino acid usage responds to GC pressure so AT-biased substitutions drive higher usage of amino acids with AT-ending codons.
Auden E. Cote-L'Heureux +3 more
doaj +1 more source
Abstract Understanding the ventilation of the deep ocean, where most ocean carbon is stored, is essential to understanding how changes to ocean carbon budgets contribute to climate change. In the Arctic Ocean, shifts in ice cover, stratification and temperature are likely to impact carbon sequestration in the ocean interior.
Jesse R. Farmer +3 more
wiley +1 more source
Foraminifera vizsgálatok sajólászlófalvai miocén üledékben
Paleoökológiai rekonstrukció foraminifera vizsgáltaok alapján sajólászlófalvai középső miocén csillámos tengeri homokból ...
Fülöp, Norbert
core
Benthic protozoan community attributes in relation to environmental gradients in the Arabian Sea [PDF]
“Live” (stained) and dead macrofaunal (>300 ?m fraction) foraminifera in multicorer samples (0-1 cm and 0-5 cm layers) were analysed at six stations along a transect (100-3400 m water depth) across the Oman margin (Arabian Sea) oxygen minimum zone ...
Da Silva, A.A., Da Silva, Ana Aranda
core +1 more source
Foraminifera are unicellular protists with external shells (tests) that may be calcareous (porcelaneous or hyaline), agglutinated, or organic-walled. Their test morphology and as-assemblage composition closely track environmental forcing, making them ...
Hyun Ju Ha +7 more
doaj +1 more source
Labrador Coastal Current Variability During the Holocene
Abstract The Labrador Coastal Current (LCC) is a buoyancy driven current comprised of outflows from Baffin Bay and Hudson Bay that transports freshwater and nutrients to the Scotian Shelf and Gulf of Maine in the NW Atlantic. This study reconstructs Holocene flow speeds over the Labrador Shelf, using the sortable silt index at two core sites off ...
Adam J. White +7 more
wiley +1 more source
The uppermost 2 meters of the Maastrichtian Scaglia Rossa Fm. (Gubbio, Italy) record a notable change in the proportions of morphogroups of deep-water agglutinated foraminifera beginning about 1.4 m below the boundary, where we observe a gradual decrease
Michael A. Kaminski +2 more
doaj +1 more source

