TY - JOUR
T1 - The system diopside-acmite-nepheline at low oxygen fugacity
AU - Onuma, K.
AU - Ikeda, S.
AU - Ohtani, E.
AU - Kato, T.
PY - 1992
Y1 - 1992
N2 - Nepheline component (NaAlSiO4, 20 wt.%) was added to the join diopside(CaMgSi2O6)-acmite(NaFeSi2O6) and the phase relations were determined at 10-12 atm fO2 and 1050-1300°C. The liquidus lines for wustite and clinopyroxene cross each other at about 1160°C and the composition of Di24Ac56Ne20. The field of clinopyroxene + wustite + liquid extends from Di15Ac75Ne20 to Di40AC40Ne20 at 1050°C. In the Di-rich region the phase relations are complicated. Olivine appears as second phase, but disappears at lower temperatures (<1100°C). Melilite (<1200°C) and nepheline (<1150°C) are present at lower temperature region and coexist with olivine and/or clinopyroxene. -Authors
AB - Nepheline component (NaAlSiO4, 20 wt.%) was added to the join diopside(CaMgSi2O6)-acmite(NaFeSi2O6) and the phase relations were determined at 10-12 atm fO2 and 1050-1300°C. The liquidus lines for wustite and clinopyroxene cross each other at about 1160°C and the composition of Di24Ac56Ne20. The field of clinopyroxene + wustite + liquid extends from Di15Ac75Ne20 to Di40AC40Ne20 at 1050°C. In the Di-rich region the phase relations are complicated. Olivine appears as second phase, but disappears at lower temperatures (<1100°C). Melilite (<1200°C) and nepheline (<1150°C) are present at lower temperature region and coexist with olivine and/or clinopyroxene. -Authors
UR - http://www.scopus.com/inward/record.url?scp=0027042048&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0027042048&partnerID=8YFLogxK
U2 - 10.2465/ganko.87.123
DO - 10.2465/ganko.87.123
M3 - Article
AN - SCOPUS:0027042048
VL - 87
SP - 123
EP - 126
JO - Journal of Mineralogy, Petrology and Economic Geology
JF - Journal of Mineralogy, Petrology and Economic Geology
IS - 4
ER -