K + = e 9 cS = © o S o s 3 2 Po 2 4 s § « § 8 te Bet 1 Ste] ¥ Yoo. at won we oO oof . oa YO ES ‘S be g PO Se tath oor 8 Y ¥ St © 200 Coral = and with r . low tide a rere * . . Replaced zone Leached zone No 3° EXPLANATION Coral Poo Sandstone chalky sand, recrystallized — Goarse sand a _ . a pt a Fine sond Pay & . No. Nos.2 2A Seo terrace” \ ftfathoms Lithothamnion x ; eo 160! Tye Fine fo. fc s oltusks m S|: roc yy vy? — a ene chalky Boece fathoms we Reef eo 38 ow yo ay> Coral Y,Yi Coral, Corpenterta wear Seo 2 2 —— Qh f a LY. py cre aes Vy eo Cora! Bloc. 150 ~ AT Se shakytritusf:|| Loe 0} S bs § - \ SF]? Holimeda Yi Lagoon ferrace 12 fothoms gs 6s f= & ert _ & pe yy, 28ghimeda gh see Shee uo «=~ sont Fmd Coarse sand, FScoarse yi Le 2 bee) Helimeda Spon] Soarse Be eee 50 . Cc 83 “oOo «ee Oo — —H <—— 800-—— eG U5 pe ae Low tide 0 4800 Coral in sondy motrin . Ss ca Replaced zore (i:mestone) — Lod Leached zone (covernous Figure 2a. limestone) Geologic logs from Bikini Island boreholes (after Emery, Tracey and Ladd, 1954, p. 75). =. <* fore FF AK ¢ a” Giarn >“we 6 of 9000073 Figure 2b. . t IN ATOLL Pee CE 9 Wau TicoL wes A] rT . 3 r Location of drill holes on Bikini Island (after Emery, Tracey and Ladd, 1954, p. 74).