GAMMA ENERGY SPECTRUM ANALYSIS OF EPG SEDIMENTS C-10A Number Sample 3,840 3,610 1,460 11° 45'N, 166° E 12° 05’ N, 166° 26' E 11° 48'N, 164° 04' E ewe ee Site How Site How ee ae West Tip Site Charlie West Tip Site Charlie Bikini Island NW Bikini Lagoon 11° 41/ 16"N, 165° 16' 45" E South of Site Uncle South of Site Uncle Eaat of Site Nan 1s 1 Beach 30 30 3,300 3,300 2,500 1,460 4,040 11° 31'N, 168 04° E 11° 26'N, 165° 31'E 1,390 3,840 164° 32’ E meter Depth 12° 10'N, 167° 06' E 13° 35'N, Position Snail feces Tridacna shell > 8. heme forams Coarse coral fragments Coarse coral sand Coral disk Forams, gastropods, sand Coarse coral granules, rock Gross 1,200 1.4 1,210 940 5,100 8,300 272 10 to 70 2,460 7 1,600 678 20 405 Mev . 0.08 to 1.5 (y/min)/gm 300 gm basalt and manganese Fine aand aud ooze Coral sand and Foraminifera Globigerina ooze Large gastropod shells, coral chunks and forams 12.3 gm manganese nodule Surface of 106 cm globigerina ooze Surface of 46 cm globigerina ooze 1 to 10 mm manganese granules 1 to 10 mm coral fragments Description ND indicates that these isotopes were present in quantities too low to be detected. TABLE 1.13 880 5.6 1,360 1,090 16 9,400 17,800 5.0 0.6 390 42 1,910 ND 1,840 535 440 Ce 131 10 740 5,000 2,000 7.8 1.7 1 00 19 1,180 ND 180 468 71 4 10 Ru'™ 0.7 0.54 12 ND ND ND ND ND ND ND Trace Present Present Zn @ 4.3; Co™ = 0.15; Ma“ 2 6.3 Zr™ «= 60 Thorium ~ 0.36 Eu™ = 0.06 to 0.1 Eu™ possibile trace; Zn®™ = 60, sh= 79 13.7 13.6 Trace Mn™ = 0.8 17.3 2.7 20 10 Others k® Ra uuc/gm Dry Weight on 1 May 1956 zz elite alnitian Cl = et Olli ain, sate «8 $2 3 att int 6 e 1.7 tior Ru’ Ru’ ma Th iso rac wa OVE