Sapphire-bearing rocks from MacRobertson Land, Antarctica
- 1 December 1957
- journal article
- Published by Mineralogical Society in Mineralogical Magazine and Journal of the Mineralogical Society
- Vol. 31 (239) , 690-697
- https://doi.org/10.1180/minmag.1957.31.239.07
Abstract
A small isolated outcrop in a large area of charnockites in the Mawson area, MacRobertson Land, Antarctica, consists of enstatite-sapphirine-cordierite rocks. Other highly magnesian outcrops occur in the district and these rocks may be completely recrystallized xenoliths. Analyses of the country rock, the two sapphirine-bearing rocks, and the sapphirine are given; the country rock is very rich in iron and has a high FeO : MgO ratio, while the sapphirine-bearing rocks are very low in iron and high in MgO, approximating to ternary mixtures of MgO, Al2O3, and SiO2.Keywords
This publication has 7 references indexed in Scilit:
- The Stability Field of Sapphirine in the System MgO-Al2O3-SiO2The Journal of Geology, 1952
- Synthetic Sapphirine and Its Stability Relations in the System MgO-Al2O3-SiO2The Journal of Geology, 1950
- Sapphirine—(Madura)Proceedings of the Indian Academy of Sciences - Section A, 1949
- Sapphirine from Dangin, Western AustraliaGeological Magazine, 1945
- Sapphirine crystals from Blinkwater, TransvaalMineralogical Magazine and Journal of the Mineralogical Society, 1939
- The ternary system MgO-Al 2 O 3 -SiO 2American Journal of Science, 1918
- The ilmenite rocks near Saint Urbain, Que.; a new occurrence of rutile and sapphirineAmerican Journal of Science, 1912