共 26 条
- [1] BALASHOV YA, 1964, GEOCHEM INT, P951
- [2] CHAUDHURI ST, IN PRESS
- [4] CONDIE KC, 1970, GEOL SOC AM BULL, V81, P2759
- [5] CHROMIUM AND NICKEL IN FIG TREE SHALE FROM SOUTH AFRICA [J]. SCIENCE, 1967, 158 (3798) : 261 - &
- [6] ANALYSIS FOR RARE-EARTH ELEMENTS BY NEUTRON ACTIVATION AND GE(LI) SPECTROMETRY [J]. JOURNAL OF RADIOANALYTICAL CHEMISTRY, 1970, 6 (01): : 97 - +
- [7] EVANS BW, 1966, BEITR MINERAL PETROG, P25