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The forms of plant nutrient elements in Australian native plant ash derived from several species and the incubation effects on soil
forms plant nutrient elements Australian native plant ash derived several species the incubation effects soil
2012/3/30
Wildfires and prescribed fires burn many thousand of hectares of forest annually (Ulery et al., 1996). The intensity of forest burning is related to weather conditions, amount of fuel available and th...
Late Maastrichtian and K/T paleoenvironment of the eastern Tethys (Israel):mineralogy, trace and platinum group elements, biostratigraphy and faunal turnovers
Cretaceous-Tertiary Boundary Israel Iridium Impact Volcanism Paleoclimate and sea-level fluctuations
2011/11/8
The late Maastrichtian to early Danian at Mishor Rotem, Israel, was examined based on geochemistry, bulk rock and clay mineralogies, biostratigraphy and lithology. This section contains four red clay ...
XAFS study of the coordination and local relaxation around Co2+, Zn2+, Pb2+, and Ba2+ trace elements in calcite
XAFS coordination local relaxation trace elements calcite
2012/3/31
Analysis of divalent Co, Zn, Pb, and Ba XAFS spectra of synthetic and natural calcite samples
containing trace concentrations of these heavy metals confirms their substitution in the unique Ca
site ...
The effect of trace elements on the olivine-wadsleyite transformation
trace elements olivine-wadsleyite transformation
2012/4/1
Multianvil experiments were conducted at 1400 to 1600 8 C on olivine and peridotite starting compositions to determine the partitioning of Ti, Al, Cr, Ni, Ca, and Na between coexisting olivine and wad...
Comparative Study of the Mobility of Major and Trace Elements During Alteration of an Andesite and a Rhyolite to Bentonite, in the Islands of Milos and Kimolos, Aegean, Greece
Alteration Andesite Bentonite Element Mobilization Mordenite Phosphates REE Fractionation Residual Enrichment Rhyolite Smectite Water:Rock Ratio
2011/12/8
Abstract: Progressive alteration by seawater of an andesite in the Aegean Island of Milos and an ignimbrite in the Aegean Island of Kimolos, Greece, formed bentonites with or without zeolites. Both pr...
Analytical Electron Microscopy in Clays and Other Phyllosilicates: Loss of Elements from a 90-nm Stationary Beam of 300-keV Electrons
Analytical Electron Microscopy Clay Minerals Diffusion Element Loss Low Temperature Phyllosilicates Sputtering Stationary Beam
2011/12/8
Abstract: Diffusion of alkali and low-atomic-number elements during the microbeam analysis of some silicates by analytical electron microscopy (AEM) has been known for some time. Our repeated analyses...
Site preference of rare earth elements in fluorapatite: Binary (LREE+HREE)-substituted crystals
Site preference elements fluorapatite:Binary substituted crystals
2012/4/6
Crystalsofbinary(LREEHREE)-bearing?uorapatite[La,Gd-FAp,Ce,Dy-FAp,Pr,Er-FAp,Eu,Lu-FAp;CaNa REE (P Si O ) A ,with x 0.12¤C0.20 y 0.26¤10 x 2y y x y 1 x x 4 6 2/m]havebeengrownfromH O-richphosphate-?uor...
Incorporation of rare earth elements in titanite: Stabilization of the A2/a dimorph by creation of antiphase boundaries
Incorporation rare earth elements titanite Stabilization A2/a dimorph creation antiphase boundaries
2012/4/5
Theatomicarrangementofanaturalrare-earth-richtitaniteandtwosyntheticrare-earth-
dopedtitaniteshavebeenre?nedinspacegroup A2/a, andtheatomicarrangementofanundoped P2
/a synthetictitanitewasalsore?ned...
Trace elements fractionation by impact-induced volatilization: SIMS study of lunar HASP samples
Trace elements fractionation impact-induced volatilization SIMS study lunar HASP samples
2012/4/5
Impactisadominantprocessactingonthesurfacesofplanetarybodiesandisthemajor
processthatmodi?esthephysicalandchemicalnatureofplanetarymaterialsonatmo-
sphere-freebodiesoncevolcanicactivityhasceased.Ele...
Hydrothermal Reactions of Strontium and Transuranic Simulator Elements with Clay Minerals, Zeolites, and Shales
Chlorite Clinoptilolite Hydrothermal treatment Illite Lanthanum Montmorillonite Neodymium Nuclear waste Shale Strontium Zeolite
2012/2/6
Reactions of Sr, La, and Nd (the latter two elements simulating Am and Cm) with potential backfill minerals for radioactive waste storage and with repository wall rocks, such as shale, were investigat...
Hydrothermal Reactions of Clay Minerals and Shales with Cesium Phases from Spent Fuel Elements
Cesium Hydrothermal Illite Nuclear waste Pollucite Shale Uranium
2012/2/8
The immobilization of soluble Cs from spent fuel elements by ion exchange and direct chemical reaction with clay minerals or shales was investigated under hydrothermal conditions. Various clay mineral...
Quantitative Analysis of Elements in Sediments and Soils by X-ray Fluorescence
Quantitative Analysis Elements X-ray Fluorescence
2012/2/13
Previous applications of the method of known additions for quantitative X-ray fluorescent analysis have assumed a linear relationship between peak intensity and concentration of the element being anal...