78 CROCKER, KAWAHARA, AND FREILING 10' -— | <a . pe = 10° - > —— eo Le a al 107! 107! oa a“ ” UL — _ “Cc >on a“ | poe 10° ap 95 tof pe 10! Fig. 4—Correlation lines for “Y in Small Boy from three different laboratories. Table 1— SUMMARY OF SLOPES OF FRACTIONATION PLOTS Silicate-surface and subsurface bursts in 1962 Nuclide Sedan ICs 83Sr 0.99 1.0 16Ry 1317 0.58* 0.56 132-Te 0.43 90Sr 138Cs 0.54 0.38* ~-108Ry Sty 0.50* 0.44 M0Ra 0.48 Johnie Boy Air bursts 1.19 1.0 1.11 1.0 1.03 1.0 0.90 1.0 0.89* 0.84 1.10 0.76 0.92 0.638 0.62 Small Boy 0.90* 0.73 0.83* 0.52* 0.51 0.54 0.53 0.23* 0.04 0.17 0.48 0.43* 0.07 0.03 S74 "0.0 0.0 0.04 — 1.08* 0.73 0.65* 239Np 141C@ 233py 14Ce Mo High-yield coral-surface burst 0.04 0.61 0.48 0.39% 0.18 ~0.003 . —0.017 0.0 0.60 0.56 —0.02 0.80 0.40 0.08 0.18 0.0 0.0 — 0.10 0.30 *Certain reservations relative to these values are expressedin the text.