Results 21 to 30 of about 2,514 (184)

Sources and source areas of the Upper Paleozoic metasedimentary rocks of the Dzhagda terrane of the Mongol-Okhotsk fold belt: the results of Sm-Nd isotope geochemical studies

Геодинамика и тектонофизика, 2018
The article presents the results of Sm-Nd isotope geochemical studies of the Upper Paleozoic metasedimentary rocks of the Dzheskogon, Nektera and Bochagor suites of the Dzhagda terrane.
V. A. Zaika, A. A. Sorokin, V. P. Kovach
doaj   +1 more source

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

Геодинамика 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, A. A. Sorokin, N. M. Kudryashov, V. P. Kovach, J. V. Plotkina, T. M. Skovitina   +5 more
doaj   +1 more source

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

Frontiers 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, Minming Cui, Travis Hong, Christopher D. White, Ellen E. Martin, Karen H. Johannesson   +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)

Записки 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, Artem V. Mokrushin, Tamara B. Bayanova, Pavel A. Serov, Aleksey A. Ariskin   +4 more
doaj   +1 more source

Rb-Sr and Sm-Nd isotopic variations in dissected crustal xenoliths [PDF]

Geochimica et Cosmochimica Acta, 1993
The effect of magma-xenolith interaction on the Rb-Sr and Sm-Nd isotopic systematics was investigated by studying the Rb-Sr and Sm-Nd variations in dissected crustal xenoliths sampled from different localities across Scotland. The Nd isotopic compositions were found to be virtually uniform across each xenolith, but significant variations were found in ...
Der-Chuen Lee,, Halliday, Alexander N., Hunter, Robert H., Holden, Peter, Upton, Brian G. J.   +4 more
openaire   +2 more sources

High-Temperature Behavior, Oxygen Transport Properties, and Electrochemical Performance of Cu-Substituted Nd_1.6Ca_0.4NiO_4+δ Electrode Materials

Applied Sciences, 2022
In this study, Nd1.6Ca0.4Ni1−yCuyO4+δ-based electrode materials for intermediate temperature solid oxide fuel cells (IT-SOFCs) are investigated. Materials of the series (y = 0–0.4) are obtained by pyrolysis of glycerol-nitrate compositions.
Tatiana Maksimchuk, Elena Filonova, Denis Mishchenko, Nikita Eremeev, Ekaterina Sadovskaya, Ivan Bobrikov, Andrey Fetisov, Nadezhda Pikalova, Alexander Kolchugin, Alexander Shmakov, Vladislav Sadykov, Elena Pikalova   +11 more
doaj   +1 more source

Cancer‐Associated BCL‐2 Mutants Reveal Mechanisms Towards Venetoclax Resistance

Advanced Science, EarlyView.
Venetoclax (VEN) resistance in chronic lymphocytic leukemia arises from diverse BCL2 mutations. We map mechanisms contributing to VEN resistance across common BCL‐2 variants. G101V and D103Y reduce drug binding and increase sequestration of pro‐apoptotic proteins. V156D blocks VEN allosterically.
Jonas Aufdermauer, Ian de Ridder, Mahjoobeh Ehsani, Marasim Khan, Justin Kale, Lukas P. Frenzel, David Andrews, Spyridoula Karamanou, Ana J. Garcia‐Saez, Geert Bultynck   +9 more
wiley   +1 more source

Sm-Nd System of Rare-Metal Pegmatites of the World-Class Kolmozero Lithium Deposit and Shongui Beryllium Deposit, NW Russia: Geochemical Causes of Disturbance and Nd Mobility

Russian Journal of Earth Sciences
The Sm-Nd geochronological study was performed to investigate rare-metal pegmatites from the two unique deposits, i.e., the Kolmozero lithium deposit and Shongui deposit with beryllium mineralization (Kola Peninsula, Russia).
Serov Pavel, Morozova Lyudmila
doaj   +1 more source

Sedimentary provenance in the southern sector of the São Francisco Basin, SE Brazil

Brazilian Journal of Geology
: We present new Sm-Nd, U-Pb and Hf isotope geochronological data for the siliciclastic rocks in the southern sector of the São Francisco Basin. An abrupt change in the Sm-Nd data is observed from the Carrancas Formation’s oligomitic conglomerates (TDM ...
Gustavo Macedo de Paula-Santos, Marly Babinski   +1 more
doaj   +1 more source

Characterization of Nd Radiogenic Isotope Signatures in Sediments From the Southwestern Atlantic Margin

Frontiers in Earth Science, 2018
Based on radiogenic isotope systems of neodymium [Epsilon Neodymium-εNd(0), 143Nd/144Nd, 147Sm/144Nd, and Sm-Nd Depleted Mantle Model ages-TDM] from current and previous data of continental rocks and associated sediments, this work provides the ...
Simone S. Mantovanelli, Colombo C. G. Tassinari, Michel M. De Mahiques, Michel M. De Mahiques, Luigi Jovane, Everton Bongiolo   +5 more
doaj   +1 more source