High apatite solubility in peraluminous melts

WebSince they have excess P 2 O 5 over CaO to form normative apatite, we here propose the term "perphosphorous granites". High phosphorus contents appear to be due to elevated apatite solubility in peraluminous granitic melts rather than … Web1 de out. de 1992 · Apatite solubility in peraluminous liquids: Experimental data and an extension of the Harrison-Watson model. New experimental data at 750–1000°C, 2–5 kbar, and for peraluminous melt compositions show a dramatic increase of apatite solubilities and phosphorus melt contents when compared to metaluminous or peralkaline …

The solubility of H2O in peralkaline and peraluminous granitic melts ...

Web13 de jan. de 2015 · Monazite and xenotime solubility strongly increases with the peralkalinity of the melt. This effect is mostly due to an increase in the solubility of the ionic species, which are probably stabilized by non-bridging oxygen atoms in the melt. In peraluminous melts, the solubility of monazite and xenotime is nearly constant. WebFor the peraluminous compositions, the solubility of H 2O decreases with the addition of 2 wt% Al 2O 3 to the HPG8 composition, then increases strongly with the further ad-dition … cryptohasbulla https://sarahnicolehanson.com

Geochemistry of phosphorus and the behavior of apatite during …

WebTwo separate series of hydrous experiments involving (1) imposing apatite saturation on a series of igneous rock compositions from basanite to rhyolite, and (2) crystallizing similar natural rock compositions … Web1 de jan. de 2024 · Monazite is a common accessory mineral in peraluminous, metaluminous and peralkaline granitic/rhyolitic rocks. Considering the importance of monazite in geochemical and geochronological studies,... dust removal from home

Coevolution of sedimentary and strongly peraluminous granite …

Category:Geochemistry of phosphorus and the behavior of apatite during …

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High apatite solubility in peraluminous melts

Geochemistry of phosphorus and the behavior of apatite during …

WebPichavant et al. (1992) conducted 85 reconnaissance experiments and they demonstrated that apatite solubility increases for peraluminous 86 melt compositions compared with the metaluminous and peralkaline melts used by Harrison and Watson 87 (1984). WebBased on experimental data, Harrison and Watson (1984) proposed a model of saturation behavior of apatite in crustal melts as a function of temperature and silica content. …

High apatite solubility in peraluminous melts

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Web30 de abr. de 2004 · The fact that the solubility of apatite in metaluminous and peralkaline magmas is a function of melt composition and temperature was confirmed experimentally Watson and Capobianco, 1981, Green and Watson, 1982, Harrison and Watson, 1983, as was the considerably higher apatite solubility in peraluminous melts, where the … Web15 de mai. de 1991 · We have characterized the effects on solubility of pH, XH2O (addition of CO2), pressure (P = 1.0-3.0 GPa), temperature (T =800-1200 °C), and dissolved silicate and NaCl concentration. Fluorapatite solubility in pure H2O is low, not more than 0.4 wt% at all conditions… View on Royal Society Save to Library Create Alert Cite

Web1 de fev. de 2016 · The effect of phosphorus on manganocolumbite and mangaotantalite solubility in peralkaline to peraluminous granitic melts Yong Tang; Yong Tang 1 Key Laboratory of High-Temperature and High-Pressure Study of the Earth’s Interior, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550081, China 2 Web1 de out. de 1994 · In equilibrium runs with more strongly peraluminous compositions, however, Ap solubility increases linearly with ASI, to P205 ~ 0.63 wt% in melt at ASI = 1.3, and can be denned by a simple equation: P^O-, = -3.4 + 3.1 X ASI (R = 0.833), which agrees within error with previous calculations reported in the literature.

WebVapor-saturated experiments at 200 MPa with peraluminous, lithophile-element-rich rhyolite obsidian from Macusani, Peru, reveal high miscibility of H2O and silicate melt … WebEnter the email address you signed up with and we'll email you a reset link.

Web8 de mar. de 2024 · We provide new experimental data of monazite, xenotime and U-Th-bearing cheralite solubility in slightly peralkaline to peraluminous granitic melts using dissolution and reverse (i.e.,...

Webconstant melt SiO2 content and temperature, apatite solubility is increased dramatically for peraluminous liquids (A/CNK > 1 ). Solubilities of up to several wt% P205 for peralumi … dust remover spray can bunningsWeb5 de nov. de 2008 · High temperature granites are more prospective for mineralisation, both because of that higher temperature and because they have a greater capacity to … cryptohath.cfWeb1 de abr. de 1997 · The solubility of H 2 O in a series of 13 melts based on a haplogranitic composition (HPG8) have been determined for the conditions of 500–5000 bar pressure and 800–1000 °C. The compositions represent the additions of individual components (Cs 2 O, Rb 2 O, K 2 O, Na 2 O, Li 2 O, and Al 2 O 3) to HPG8 (in wt% 78.6 SiO 2, 12.5 Al 2 O 3, … cryptohackingWebApatite solubility in peraluminous liquids: Experimental data and an extension of the Harrison-Watson model. New experimental data at 750-1000°C, 2-5 kbar, and for … dust resistant bluetooth radioWebThe concentration of phosphorus in glassy melt inclusions and rehomogenized nanogranitoids suggests a strong control of melt aluminosity on apatite solubility in … cryptohash genexusWebApatite (Ap) dissolution and solubility in the peraluminous haplogranite system were investigated in three sets of experiments at 750°C and 200 MPa (P H 2 o), as functions … cryptohawk aiWeb开馆时间:周一至周日7:00-22:30 周五 7:00-12:00; 我的图书馆 cryptohawks 8726