Factors conditioning the content of chemical elements in soil and mosses in Armenia
Journal of Trace Elements and Minerals, 2022 In this research, chemical element contents were determined using the Epithermal neutron activation analysis (Cr, V, Ti, Sr, Rb, As, Zn, Co, Fe, Mn and Ba) and atomic-absorption spectrometry (Cu and Pb) for mosses and X-ray fluorescence spectroscopy (Cr,
Gevorg Tepanosyan +3 more
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Response of the Rb–Sr system in biotite during contact metamorphism in the aureole of the Makhavinekh Lake Pluton, Labrador [PDF]
GeochronologyHigh-temperature contact metamorphism in the aureole of the 1322 Ma Makhavinekh Lake Pluton, Labrador, led to progressive consumption of 1850 Ma garnet formed during upper-amphibolite facies regional metamorphism that produced migmatitic paragneiss ...
C. R. M. McFarlane
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Transport of Rb and Sr to the ear in mature, excised shoots of wheat: Effects of temperature and stem length on Rb removal from the xylem [PDF]
, 1991 Wheat (Triticum aestivum L. cv. `Arina') shoots grown in the field were excised post-anthesis and incubated in the laboratory for 72 h standing in 2 mM RbCl + 2 mM SrCl2. Strontium is a phloem-immobile, xylem-mobile element and indicates the distribution
Kuppelwieser, H, Feller, Urs
core +1 more source
LA‐ICP‐MS/MS Single‐Spot Rb‐Sr Dating
, 2022 Due to developments in reaction cell technologies, it is now possible to collect large Rb-87/Sr-86 and Sr-87/Sr-86 data sets using LA-ICP-MS/MS. Until now, LA-ICP-MS/MS Rb-Sr ages were constrained using conventional isochrons on a contiguous set of Rb-Sr
Delia Rösel +3 more
core +1 more source
Scientific Reports, 2019 Illitic clay is ubiquitous in clastic hydrocarbon reservoirs, and the host for several radiometric isotopes such as the potassium-argon (K-Ar) and rubidium-strontium (Rb-Sr) systems.
Shaojie Li +7 more
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The Osmium Isotope Signature of Phanerozoic Large Igneous Provinces
Geophysical Monograph Series, Page 229-246., 2021 Exploring the links between Large Igneous Provinces and dramatic environmental impact
An emerging consensus suggests that Large Igneous Provinces (LIPs) and Silicic LIPs (SLIPs) are a significant driver of dramatic global environmental and biological changes, including mass extinctions.
Alexander J. Dickson +2 more
wiley +7 more sources
Geosciences, 2021 A combined ultrasonic treatment, with de-ionized H2O, dilute HAc or dilute HCl, of three Mid-Miocene glauconite samples was applied to K–Ar date the different separates in order to compare the results with those obtained by the Rb–Sr method using the ...
Norbert Clauer +3 more
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Rb-Sr, Sm-Nd ages of the Phalaborwa Carbonatite Complex, South Africa
, 2005 P(論文)We analyzed Rb-Sr and Sm-Nd isotopic compositions of whole-rock and minerals from syenite, biotite gneiss xenolith, dolerite dyke, phoscorite, and carbonatite from the Phalaborwa Carbonatite Complex located in northeastern Transvaal, South Africa ...
Hirahara, Yuka +3 more
core +1 more source
Geosciences, 2023 Beryl is both an accessory and a rock-forming mineral in pegmatites that contain beryl, making it a major source of Be. Beryl-bearing pegmatites of the Shongui deposit, located in the Kola province of the Northeastern Fennoscandian Shield, hold beryl ...
Lyudmila N. Morozova +6 more
doaj +1 more source
, 2003 P(論文)The closure temperature of the Rb-Sr whole-rock system for felsic rocks has been generally considered to be ca. 700゜C, but it falls to ca. 400゜C, as a result of efficient action of fluids,especially H_2O.
Owada, Masaaki +5 more
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