Results 71 to 80 of about 2,325 (156)
Ecological Research, Volume 41, Issue 1, January 2026.The Peak Range Volcanics in central Queensland, Australia is naturally enriched with REEs (Rare Earth Elements). Fieldwork was conducted to analyse REEs in plant species occurring in this area. ABSTRACT Rare Earth Elements (REEs) are critical for high‐tech technologies in the green energy transition.
Amelia Corzo‐Remigio +3 more
wiley +1 more source
Island Arc, Volume 35, Issue 1, January/December 2026.ABSTRACT The early Paleozoic tectonic setting of proto‐Japan remains poorly constrained. In the South Kitakami Belt in Northeast Japan, Ordovician–early Silurian basement rocks and overlying Silurian–Cretaceous shallow marine sediments are widely distributed.
Takayuki Uchino +2 more
wiley +1 more source
Journal of the American Ceramic Society, Volume 109, Issue 1, January 2026.Even if the concentration of photoactive centers is high, concentration quenching may be avoided when the concentration of quenching centers is sufficiently low, and excitation migration through photoactive centers and subsequent deactivation at quenching centers is the main quenching mechanism.
Koichi Kajihara
wiley +1 more source
Study of Natural Zircon-Xenotime Assemblages for Estimation of the Actinide Waste Forms Stability
, 1999 In order to estimate compositions and structural stability of YPO4-ZrSiO4-USiO4- ThSiO4 solid solution, natural specimens of (U,Th)-enriched zircon-xenotime assemblages were studied.
M. I. Lapina, S. V. Yudintsev
core +1 more source
SHRIMP Uranium-Lead Dating of Diagenetic Xenotime in Siliciclastic Sedimentary Rocks
, 1999 Diagenetic xenotime is common in siliciclastic sedimentary rocks, where it starts to form on detrital zircon shortly after sediment deposition. It is possible to estimate the age of sedimentary rocks by in situ uranium-lead analysis of that xenotime. Two
Neal J. McNaughton +2 more
core +1 more source
REE MINERALS OF PHYLLITES OF THE MAIN CENTRAL THRUST OF THE TAMOR WINDOW AREA, EASTERN NEPAL [PDF]
Минералогия, 2018 A sample of chlorite-muscovite fillite metamorphosed under greenschist facies of metamorphism below biotite isograde of the Lower Himalayan Sequence from the Main Central Thrust zone of the Tamor tectonic window area (Eastern Nepal) are studied.
E.V. Belogub +2 more
doaj
REE-bearing minerals in the Rapakavi Grante, Southern Finland
Open Geosciences, 2015 The studied rock samples belong to the classic1615–1645 Ma Wiborg Rapakivi granite terrane of southeasternFinland. Geochemical studies show that the rapakivigranites and associated rocks form metaluminousto peraluminous A-type granites and plot in the ...
Al-Ani Thair
doaj +1 more source
Xenotime dissolution dynamics under neutral and acidic conditions [PDF]
, 2013 Dissolution dynamics of synthesized xenotime was experimentally studied in a discontinuous flow–through reactor. The dissolution rate constants derived from yttrium release were determined as (1.71 ± 0.74) × 10-17 mol/m2/s in near neutral solution (pH ...
Novotný, Karel +3 more
core
Towards a new impact geochronometer: Deformation microstructures and U-Pb systematics of shocked xenotime [PDF]
Shock-deformation microstructures in xenotime have been proposed to record diagnostic evidence for meteorite impacts. Evaluating the potential for impact-induced U-Pb age resetting of the various microstructures that form in shocked xenotime remains ...
Steven Reddy (23290585) +9 more
core +2 more sources
MINERAL COMPOSITION OF Fe-POOR FERRUGINOUS AND CARBONACEOUS SHALES FROM THE ALEXANDRINSKOE AND SAF′YANOVSKOE DEPOSITS (THE URALS) [PDF]
Минералогия, 2016 Ferruginous and carbonaceous shales of the Alexandrinskoe and Saf′yanovskoe massive sulfide deposits are composed of pseudomorphic chlorite, quartz and hydromica after hyaloclasts and contain quartz and plagioclase clasts, as well as zircon, apatite ...
N.S. Arkhireeva, V.A. Kotlyarov
doaj