| Reference | {Deposit:: MINING JOUR., 1963 , RAND AND ORANGE FREE STATE RETURNS: MINING JOUR., V. 260 , P. 72}{Deposit:: PARK AND MAC DIARMID, 1970 , ORE DEPOSITS: FREEMAN AND CO., P. 441}{Deposit:: MERTIE, 1969 , ECON. GEOL. PT: US GEOLOGICAL SURVEY PROF. PAPER 630} |