srecifirz nuclear test series. The coral grewth rate cof 8.0 mm yeer/sup -1/

determined ty evtcradicoaraphy 16 in ected agreement wath the rete of 8.1 +2.2 me year’sup -iv derived from the ‘‘seasenal'' alternating light ard
derh Band= ¢9 : radisoraphs. With these bands af growth rate indicatire,
the cerai wes sectioned into yearly increnents and analyzed by low-level,
sindectructive gamma epectrometry,

radizchemical

techniques.

and mass

spectrometry to retenstruct tre variavionrs in the cancentration of
trarsuranics and other redicnuclides in the merine envirenment at Bibini
since 1954. From che cancentration data retained in this indicator species,
the e:change rate cf radicnuclides between the lagcan and the apen ccean is
computed te te langer than exchange rates based on physical circulation
data. There is na constant ratio of piutenium isetepes in the coral growth
sections, suggesting that the redistributions af the several pluteniun
iSttores in tne environment may be ceaverned ty different bicgeochemical
precsszes. Increased levels of /sup 210/Fa ./sup 210/Pb) were found in
teet-Y,ear grewth cections, contradicting previ Gus arguments that ma /sup
ElO/Pbh has resulted “rom weapons testing.
(auth)

DiAlOc File lo:
4Gre7
Vities
Erswetear
cacel reef
Suthor:

wenh,

‘Eqleete
beau.

(Sirgitia

Stoll:
Inet.

aepects

af tse nitregen cycle on a

of Merire Science,

Gloucester Tcint

meer, A.D.t
Wiebe, We:
Fottile., ki:
Jcharswes, PLE.
sGul-C i Lirsei. Greancer,.
United Stetes)
» Ouse.
Tete: “tar i575
a7a-E15 2.
Deces: LinTS
Documers Tyner Tovrmal Articis
Ecglis®
rouacenent: Feazaie
TRA
(Ene-cy Feeearch Abstracts): Tic
fTecdnicel

Information

SORALIG File 109:
198554
H&A-32-017199
sup ciCéFoa anc Ssup 239Fu, Feup 240$Fu in biclegical and water samples
from the Bikini and Eniwetok atolls
Nevissi, A.; Schell, WR.
Univ. of Washirgten, Seattle
Native (Londen), v. O55, ma. S506, pp. 321-323
Sublication Date: 22 May 1975
Cecan: NATuUA
Counsry 2f Publication: United Firgdam
curnal Arneuncement: NSAZ=S
wt TyFei Jturral Article
jAclear Ecience Acestracts)

.

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