Gondwana Research
I I. Ybaquot; x Ce, /Yba diagram; arrows start at the composition of a tholeiite. ... ppm ( variable), Ba = 800 ppm, V = 300 ppm, Nb = 3 ppm, Hf= I ppm, Zr = 50 ppm, Sc = 40 ppm, Cr = 250 ppm, Co = 50 ppm, Ni = a#39; 200 ppm. i 0.518 E 0.516 a#39;U As 0.514 3a#39; .
| Title | : | Gondwana Research |
| Author | : | |
| Publisher | : | - 1997 |
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