搜索结果: 1-7 共查到“地质学 Phosphorus”相关记录7条 . 查询时间(0.109 秒)
Changes in phosphorus biogeochemistry along an estuarine salinity gradient: The iron conveyer belt
Changes in phosphorus biogeochemistry estuarine salinity gradient The iron conveyer belt
2014/4/18
We used sequential extractions to quantify different forms of particulate phosphorus (PP) in sediments along the salinity gradient of the Patuxent River estuary. About 50-90% of the PP was phosphate b...
Why the phosphorus retention of lakes does not necessarily depend on the oxygen supply to their sediment surface
phosphorus retention of lakes oxygen supply sediment surface
2014/5/20
In order to improve the trophic state of Lake Sempach, a eutrophied lake in central Switzerland, its external phosphorus (P) load has been decreased and its hypolimnion has been artificially oxygenate...
The effect of temperature and bulk composition on the solution mechanism of phosphorus in peraluminous haplogranitic magma
temperature bulk composition solution mechanism phosphorus peraluminous haplogranitic magma
2012/4/1
Solution mechanisms of P in peraluminous glasses and melts in the system CaO-Na O-K O-Al O -
-P O have been examined with in-situ microRaman spectroscopy from ambient temperature toSiOnear 1200 ?C. ...
Preparation and Properties of Hematite with Structural Phosphorus
α-Fe2O3 Hematite Color Crystal Chemistry Dissolution IR Spectra Structural P Structure
2011/12/7
Abstract: Synthetic hematites prepared in the presence of phosphate can incorporate phosphorus (P) in forms other than phosphate adsorbed by ligand-exchange on the crystal surface. To investigate the ...
A moganite-type phase in the silica analog phosphorus oxynitride
phosphorus oxynitride silica system moganite
2012/3/30
A new polymorph of phosphorus oxynitride (PON) a silica analog has been recovered at ambient
pressure by quenching after a treatment at 850 ?C under a pressure of 2.5 GPa using cristobalite- or
quar...
Phosphorus speciation changes across the glass transition in polymerized alkali silicate glasses and melts
Phosphorus speciation glass transition alkali silicate glasses melts
2012/4/9
In situ, high-temperature Raman spectroscopy of Na,O.9SiO, glasses and melts with and without 2 mol% P,05 has been conducted to 1491 K (near the liquidus temperature). In the temperature range from 29...
Influence of Silicon and Phosphorus on Structural and Magnetic Properties of Synthetic Goethite and Related Oxides
Electron diffraction Ferrihydrite Goethite Mossbauer spectroscopy Phosphorus Silicon X-ray powder diffraction
2012/1/9
A series of synthetic goethites containing varying amounts of Si and P dopants were characterized by X-ray powder diffraction, electron diffraction, microbeam electron diffraction, and M鰏sbauer spectr...
