Results 31 to 40 of about 77,130 (271)

AGE OF THE EARLY PALEOZOIC GRANITOID MAGMATISMIN THE CENTRAL PART OF THE BUREYA CONTINENTAL MASSIF, CENTRAL ASIAN FOLD BELT

open access: yesГеодинамика и тектонофизика, 2020
The article presents new age data on the ‘key’ Early Paleozoic igneous complexes located in the central part of the Bureya continental massif of the Central Asian Fold Belt.
R. O. Ovchinnikov   +5 more
doaj   +1 more source

On $^{146}$Nd, $^{144}$Sm and other unexplored 2$\beta$ decay isotopes

open access: yes, 2018
$^{146}$Nd is one of only four (over a total of 35 existing) 2$\beta^-$ decay isotope candidates whose half-lives currently lack experimental limits.
Nozzoli, Francesco
core   +1 more source

Consistent description of nuclear charge radii and electric monopole transitions [PDF]

open access: yes, 2012
A systematic study of energy spectra throughout the rare-earth region (even-even nuclei from $_{58}$Ce to $_{74}$W) is carried out in the framework of the interacting boson model (IBM), leading to an accurate description of the spherical-to-deformed ...
Bouldjedri, A.   +2 more
core   +5 more sources

Rare Earth Elements Geochemistry and Nd Isotopes in the Mississippi River and Gulf of Mexico Mixing Zone

open access: yesFrontiers in Marine Science, 2018
Rare earth elements (REE) concentrations were measured in surface waters collected across the salinity gradient in the Mississippi River estuary (i. e., Mississippi River plume, MRP), which includes the near-shore portion of the Louisiana Shelf.
Segun B. Adebayo   +5 more
doaj   +1 more source

Magma feeding paleochannel in the Monchegorsk ore region: geochemistry, isotope U-Pb and Sm-Nd analysis (Kola region, Russia)

open access: yesЗаписки Горного института, 2022
A comprehensive study of a 340 m thick lenticular-sheet body of ultramafic composition penetrated by structural well M-1 at a depth of about 2.2 km was accomplished.
Valeriy F. Smolkin   +4 more
doaj   +1 more source

High precision half-life measurement of $^{147}$Sm $\alpha$ decay from thin-film sources

open access: yes, 2017
An investigation of the {\alpha}-decay of $^{147}$Sm was performed using an ultra low-background Twin Frisch-Grid Ionisation Chamber (TF-GIC). Four natural samarium samples were produced using pulsed laser deposition in ultra high vacuum.
Degering, Detlev   +4 more
core   +1 more source

Rare-Earth Nuclei: Radii, Isotope-Shifts and Deformation Properties in the Relativistic Mean Field Theory [PDF]

open access: yes, 1995
A systematic study of the ground-state properties of even-even rare earth nuclei has been performed in the framework of the Relativistic Mean-Field (RMF) theory using the parameter set NL-SH.
Aberg   +56 more
core   +2 more sources

Antarctic climate, Southern Ocean circulation patterns, and deep water formation during the Eocene [PDF]

open access: yes, 2017
We assess early-to-middle Eocene seawater neodymium (Nd) isotope records from seven Southern Ocean deep-sea drill sites to evaluate the role of Southern Ocean circulation in long-term Cenozoic climate change.
Anagnostou   +137 more
core   +1 more source

Sr-Nd isotope systematics in 14-28 Ma low-temperature altered mid-ocean ridge basalt from the Australian Antarctic Discordance, Ocean Drilling Program Leg 187 [PDF]

open access: yes, 2005
[1] The effects of low-temperature alteration on the Rb-Sr and Sm-Nd isotope systems were investigated in 14–28 Ma mid-ocean ridge basalts recovered during Ocean Drilling Program (ODP) Leg 187 from the Australian Antarctic Discordance through comparison ...
Alt   +37 more
core   +1 more source

Ultramafic xenoliths from the Bearpaw Mountains, Montana, USA: evidence for multiple metasomatic events in the lithospheric mantle beneath the Wyoming craton [PDF]

open access: yes, 2004
Ultramafic xenoliths in Eocene minettes of the Bearpaw Mountains volcanic field (Montana, USA), derived from the lower lithosphere of the Wyoming craton, can be divided based on textural criteria into tectonite and cumulate groups. The tectonites consist
Abidin, M.S.Z.   +11 more
core   +2 more sources

Home - About - Disclaimer - Privacy