Mafic and ultramafic extrusives of the Onverwacht Group in terms of the system XO-YO-R2O-ZO2.  by J.R. McIver and D.H. Lenthall
Contributors: Lenthall, D.H.
Publisher: University of the Witwatersrand
Place of publication: Johannesburg
Language: eng
Subjects: Geology - South Africa
Notes: 11