Results 61 to 70 of about 2,514 (184)

Age and metamorphic conditions of the granulites from Capral-Jegessky synclinoria, Anabar shield

Записки Горного института, 2018
The paper presents the results of the isotope, geochemical and thermobarometric study of plagio-crystalline schist containing in the Upper Anabar series of the Anabar Shield.
L. Yu. Sergeeva, A. V. Berezin, N. I. Gusev, S. G. Skublov, A. E. Mel'nik   +4 more
doaj   +1 more source

Discussion on Sm–Nd isotopic age of Precambrian–Cambrian boundary in China [PDF]

Geological Magazine, 1997
M. J. M. Turnbull & S. Moorbath comment: The paper of Yang et al. (1996) describes a novel dating approach, using the Sm–Nd method on phosphatic material, to determine the age of the Precambrian–Cambrian boundary. The dates reported are of a precision which, in light of the relatively small range of 147Sm/144 Nd ratios (0.09–0.17), is
openaire   +1 more source

Age, provenance and tectonic setting of the high-grade Jequitinhonha Complex, Araçuaí Orogen, eastern Brazil

Brazilian Journal of Geology
: The Jequitinhonha Complex of the northeastern Araçuaí orogen is an extensive sedimentary unit metamorphosed in the amphibolite-granulite facies transition around 580-545 Ma.
Tatiana Gonçalves Dias, Fabrício de Andrade Caxito, Antônio Carlos Pedrosa-Soares, Ross Stevenson, Ivo Dussin, Luiz Carlos da Silva, Fernando Alkmim, Márcio Pimentel   +7 more
doaj   +1 more source

Isotope-geochronological study of Ingozero massive (the Kola Peninsula)

Vestnik MGTU, 2018
The Ingozero massive composed of Archeaen gneisses and granitoids is situated in the north-eastern part of the Belomorian mobile belt. The Ingozero massive petrochemical and geochemical characteristics are similar to those of tonalite-trondhjemite ...
Nitkina E. A. , Bayanova T. B.
doaj   +1 more source

Procedure for Sm-Nd Internal Isochron Dating Method on Basalt by Phase Separation

Yankuang ceshi, 2014
Accurately dating the age of basalt has been an important scientific issue for geologists. Due to its unique texture and composition, the basaltic minerals are limited to certain types, with scarce zircons in tiny grain sizes.
ZHANG Li-guo, DUAN Gui-ling, YANG Hong-mei, YANG Mei, TAN Juan-juan, DUAN Rui-chun, QIU Xiao-fei, LIU Chong-peng   +7 more
doaj   +2 more sources

Isotopic distribution of bioavailable Sr, Nd, and Pb in Chungcheongbuk-do Province, Korea

Journal of Analytical Science and Technology
Background Mapping the distribution of bioavailable isotope ratios across landscapes serves as an efficient geochemical tool for delineating the origins and migration trajectories of humans and animals.
Min-Ji Jung, Youn-Joong Jeong, Woo-Jin Shin, Albert Chang-sik Cheong   +3 more
doaj   +1 more source

Nuclide inventory analysis and fission product monitoring for nuclear safeguards in molten chloride fast reactors

Nuclear Engineering and Technology
Fission product analysis offers a powerful means to real-time monitoring of fissile material evolution and sudden alterations in Molten Chloride Fast Reactors, where conventional safeguards techniques are challenged by continuously circulating fuel.
Saehyun Choi, Jeongwon Seo, Wonseok Yang, Jihun Kim, Taehoon Park, Sujeong Lee, Sungyeol Choi   +6 more
doaj   +1 more source

Novel materials based on Ruddlesden–Popper phases for solid oxide fuel cells and oxygen separation membranes: Fundamentals of oxygen transport

Chimica Techno Acta
In the field of modern hydrogen energy, obtaining pure hydrogen and syngas and then being able to use them for green energy production are significant problems.
Vladislav Sadykov, Ekaterina Sadovskaya, Nikita Eremeev, Alexander Kolchugin, Elena Filonova, Viktor Tsvinkinberg, Tatyana Zhulanova, Elena Pikalova   +7 more
doaj   +1 more source

1.90-1.88Ga arc magmatism of central Fennoscandia: geochemistry, U-Pb geochronology, Sm-Nd and Lu-Hf isotope systematics of plutonic-volcanic rocks from southern Finland

Geologica Acta, 2016
The earliest Svecofennian magmatism in southern Finland has been dated at 1.90-1.88Ga. As an example of this, the Orijärvi (ca. 1.89Ga) and Enklinge (ca.
J. KARA, M. VÄISÄNEN, Å. JOHANSSON, Y. LAHAYE, H. O'BRIEN, O. EKLUND   +5 more
doaj  

Implications of mineralogy and Sm-Nd isotope geochronology of ultra-deep Carboniferous volcanic rock reservoirs in Fukang Sag， Central Junggar Basin

Youqi dizhi yu caishoulu
The exploration of ultra-deep volcanic rock-type oil and gas reservoirs in the Junggar Basin faces a series of scientific problems， including unclear mechanisms of reservoir formation， hydrocarbon accumulation， and reservoir destruction.
ZHANG Kuihua, ZHAO Leqiang, ZHANG Guanlong, LÜ Tieliang, SHANG Fengkai, WANG Guozhi, QU Yansheng, REN Xincheng, ZHENG Dan, SONG Jian   +9 more
doaj   +1 more source