22 Table IV. Relative sr?? content of depth increments collected in 1959 from two Rongelap Atoll soil types. Percent of total in surface ten inches if Depth in Old Soil Young Soil | Oo-1 1-2 81.0 52.9 { 2-3 2.8 16.2 i 3-4 2.0 5.8 4-5 5-6 6-7 1.4 2.2 2.0 4.0 2.2 1.2 7-8 0.8 0.7 2.5 ~ 0.6 0.2 O.1 100.2 99.9 Ht ‘ inches (pit 4) 4.9 8-9 9 - 10 Total (Pit 6) 16.6

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