Phase relations of a F-enriched peraluminous granite: an experimental study of the Kymi topaz granite stock, southern Finland

2006 ◽  
Vol 153 (3) ◽  
pp. 273-288 ◽  
Author(s):  
S. Lukkari ◽  
F. Holtz
Keyword(s):  
Experimental Study ◽  
Phase Relations ◽  
Peraluminous Granite ◽  
Topaz Granite

Experimental study of the phase relations in the Fe–Zn–Cr system at 600°C

2008 ◽  
Vol 99 (2) ◽  
pp. 138-144 ◽  
Author(s):  
Meirong Ai ◽  
Fucheng Yin ◽  
Ya Liu ◽  
Xinming Wang ◽  
Manxiu Zhao ◽  
...  
Keyword(s):  
Experimental Study ◽  
Phase Relations ◽  
Cr System

Experimental study of the phase relations in the Co–Si–Zn ternary system at 723 and 873K

2012 ◽  
Vol 540 ◽  
pp. 215-221 ◽  
Author(s):  
Manxiu Zhao ◽  
Fucheng Yin ◽  
Xiaoqin Li ◽  
Zhi Li ◽  
Zhaohui Long
Keyword(s):  
Experimental Study ◽  
Ternary System ◽  
Phase Relations

Experimental Study Of Phase Relations In The Ca-Ongonite From Ary-Bulak Massive (Transbaykal Region, Russia) at 700–800 °C

2020 ◽  
Author(s):  
Anna Novikova ◽  
Yana Alferyeva
Keyword(s):  
Experimental Study ◽  
Oxygen Fugacity ◽  
Phase Relationship ◽  
Phase Relations ◽  
General Tendency ◽  
Rock Samples ◽  
Volcanic Body

<p>An experimental study of three examples of the sub-volcanic body of Ary-Bulak ongonite was carried out to determine the composition of the liquidus phases and the order of crystallization of minerals. Phase relations in the samples of porphyritic ongonites (1), porphyritic ongonites with a high content of Ca and F (2)  and aphyric rocks with a high content of Ca and F (3) were studied at temperatures of 700–800 °C, a pressure of 1 kbar in Ni-NiO and Mt– Hem buffer conditions.</p><p>Rock samples have specific petrochemical aspects. In this series of rocks from (1) to (3), the general tendency is directed towards a decrease in the content of alkalis and silicon and an increase in the content of F and Ca.</p><p>Liquidus is achieved for porphyritic and aphyric ongonites with a high content of Ca and F. The liquidus phases for them are fluorite, topaz and plagioclase. Crystallization of porphyry ongonites begins at a temperature below 700 ° C.</p><p>The phase relationship and composition of the liquidus phases are independent of oxygen fugacity.</p>

Experimental study of the phase relations at 1023 and 1123 K in the Ag–Cu–Y system

Calphad ◽  
2020 ◽  
Vol 70 ◽  
pp. 101775
Author(s):  
Cuiping Guo ◽  
Kaiqiang Liu ◽  
Changrong Li ◽  
Zhenmin Du
Keyword(s):  
Experimental Study ◽  
Phase Relations

Leucite-Na-feldspar incompatibility: an experimental study

1975 ◽  
Vol 40 (312) ◽  
pp. 377-384 ◽  
Author(s):  
Alok K. Gupta ◽  
Alan D. Edgar
Keyword(s):  
Experimental Study ◽  
Ion Exchange ◽  
High Temperatures ◽  
Atmospheric Pressure ◽  
Alkali Feldspar ◽  
Phase Relations ◽  
Alkali Feldspars ◽  
Alkali Ion

SummaryPhase relations at atmospheric pressure in the pseudobinary join KAlSi2O6 (Lc)-NaAlSi3O8(Ab) and in the pseudoternary join Lc-Ab-CaAl2Si2O8(An) indicate that leucite is in-compatible with Na-feldspar. In the former join leucite can exist with an alkali feldspar of maximum albite content Ab54. In the Lc-Ab-An join, leucite only coexists with ternary feldspars with high An contents (approximately An50). Under PH2O conditions leucites may only coexist with alkali feldspars even poorer in Ab than those found at atmospheric pressure. Rare occurrences of coexisting leucite and Na-feldspar in nature have probably not crystallized directly from a melt but may have formed by a process of alkali ion exchange; or they may be unstable assemblages. No support can be found for the suggestions based on thermochemical calculations that albite and leucite are compatible at high temperatures.

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