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 … WebIn melts saturated with sillimanite or mullite, the effect of high Al content may be lower for the Qz-Or than for the Qz-Ab eutectic. The depression of the liquidus temperatures may …

Apatite dissolution into peraluminous haplogranitic melts: An ...

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 … Web1 de dez. de 1992 · It can thus be suggested that the main cause of the Hoyos-type trend is the high solubility of apatite in peraluminous melts, and the inheritance of apatite … china antique brass cabinet knobs https://atucciboutique.com

Apatite solubility in peraluminous liquids: Experimental data and …

Web11 de nov. de 2024 · As the solubility of apatite increases with melt aluminium saturation index ( Pichavant et al., 1992; Wolf and London, 1994 ), P concentrates in peraluminous melts during differentiation due to the lack of apatite precipitation ( Bea et al., 1994 ), a trend contrary to that observed in metaluminous melts ( Lee and Bachmann, 2014 ). WebThe solubilities of zircon, rutile, manganocolumbite (MnNb2O6), manganotantalite (MnTa2O6), and the rare earth phosphates LaPO4, GdPO4, and YbPO4 in water-saturated haplogranitic melts containing 0–6 wt.% F were measured at 800° C and 2 kbar. The melt compositions investigated differ only in their F content, the proportions of Na, K, Al, and … Web12 de jul. de 2003 · Solubility of excess alumina in hydrous granitic melts in equilibrium with peraluminous minerals at 700–800 °C and 200 MPa, and applications of the … graemefrosty outlook.com

Geochemistry of phosphorus and the behavior of apatite during …

Category:Apatite solubility in peraluminous liquids: Experimental data and an ...

Tags:High apatite solubility in peraluminous melts

High apatite solubility in peraluminous melts

Apatite dissolution into peraluminous haplogranitic melts: An ...

WebApatite (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 … Web3 de jul. de 2015 · New experimental data on the solubility of lithium (Li) at spodumene (LiAlSi 2 O 6) and petalite (LiAlSi 4 O 10) saturation at 500 MPa and 550–750 °C reveal …

High apatite solubility in peraluminous melts

Did you know?

Web7 de abr. de 2024 · Biotite is a Ti-, Fe-, and Mg-rich mineral, so the dehydration-melting of biotite generates melts with relatively high contents of TiO 2, total Fe 2 O 3 and MgO (Gou et al., 2016, 2024). Besides, breakdown of biotite occurs at a relatively higher temperature threshold than muscovite, e.g., at 1 GPa breakdown of biotite and muscovite decompose … Web1 de abr. de 1997 · For the peraluminous compositions, the solubility of H 2 O decreases with the addition of 2 wt% Al 2 O 3 to the HPG8 composition, then increases strongly …

WebContexts in source publication Context 1 ... solubility, like the solubility of other rare-element minerals, is much higher in peralkaline melts than in metalu- minous to peraluminous... Web23 de ago. de 2024 · In our previous study on petrogenesis of quartz syenite and granite porphyry, the host rocks of the Late Mesozoic Shapinggou Mo deposit in the Qinling–Dabie orogenic belt, we found that the initial Sr isotopic composition of the host rocks is strongly affected by the degree of K-alteration. Here, we provide further isotopic evidence of the …

WebApatite 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 … 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

http://www.minsocam.org/msa/ammin/toc/abstracts/1997_Abstracts/MA97_Abstracts/Dingwell_p434-437_97.pdf graeme fowler cricketWebApatite is a group of phosphate minerals, usually hydroxyapatite, fluorapatite and chlorapatite, with high concentrations of OH −, F − and Cl − ion, respectively, in the crystal.The formula of the admixture of the three … graeme fowler cricketerWebTwo 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 … graeme fryer housing agencyWeb1 de out. de 1992 · APATITE DISSOLUTION INTO PERALUMINOUS HAPLOGRANITIC MELTS : AN EXPERIMENTAL STUDY OF SOLUBILITIES AND MECHANISMS M. B. … graeme fowler ballaratWebMontel et al. tion when they occur as unfractionated felsic rocks, it is (1988) showed that apatite is soluble in peraluminous clear that had the melts that produced those granites melts, while Wolf and London (1994) found experimen- undergone extended fractional crystallisation, signifi- tally that the solubility of apatite in a haplogranite … graeme gibson deathWeb5 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 … graeme galloway dumfriesWeb1 de jan. de 1988 · Michael, B. Wolf; David London 1994: Apatite dissolution into peraluminous haplogranitic melts: An experimental study of solubilities and … china anti vandal switch