17 Table 3. Volatile/refractory ratio (volatile to refractory phase relative amounts) in fallout at various distances from Nevada Test Site - tower shots. Shot , Diablo Shasta Miles from G.Z. 16 3.2 20 Vol./ref. ratio 1.2 + 0.2 A0 60 3.6 5.1 6.7 (1.3 + 0.3 15 0.7 1.3 + 0.1 32 34 1.7 2.3 25 25 2.7 1.6 35 41 1.4 4.1 43 4.8 42 Smoky Arrival time (hr) 3.0 1.6 + 0.3 1.7 + 0.3 1.9 + 0.2 1.5 + 0.2 2.0 + 0.4 1.6 + 0.1 2.8+0.1 2.2 + 0.5 2.5 +0.3 2.1+0.1 44 44 45 2.8 3.6 4.7 1.7 + 0.2 2.1 + 0.2 2.3 + 0.3 47 2.0 2.1 + 0.2 81 5.2 2.1+0.1 5 0.2 1.1 + 0.4 25 48 65 99 158 1.1 3.2 4.2 4.6 5.6 1.5 + 0.5 1.6 + 0.5 2.1+0.5 2.1 + 0.2 3.5 + 1.3