title: Pattern of bombardment-produced radionuclides in rock 10017 and in lunar soil.
abstract: A large number of radionuclides have been measured as a function of depth in lunar rock 10017 and in bulk fines. Data are reported on (10)Be, (22)Na, (26)Al, (36)Cl, (49)V, (53)mn, (54)Mn (55)Fe, (56)Co, (57)Co, and (59)Ni and on upper limits for (46)Sc, (48)V, (51)Cr, and (60)Co. The results for several nuclides show striking evidence of excess surface production attributable to solar flare particles. Data for short-lived species, (56)Co, (57)CO, (54)Mn, (55)Fe, and (22)Na, appear consistent with fluxes from known recent events. Long-lived species demonstrate the existence of solar flare protons and alphas at least for the last 10(5) to 10(6) years, at fluxes comparable to those now observerved.
authors.forename: J P
authors.initials: JP
authors.lastname: Shedlovsky
authors.forename: M
authors.initials: M
authors.lastname: Honda
authors.forename: R C
authors.initials: RC
authors.lastname: Reedy
authors.forename: J C
authors.initials: JC
authors.lastname: Evans
authors.forename: D
authors.initials: D
authors.lastname: Lal
authors.forename: R M
authors.initials: RM
authors.lastname: Lindstrom
authors.forename: A C
authors.initials: AC
authors.lastname: Delany
authors.forename: J R
authors.initials: JR
authors.lastname: Arnold
authors.forename: H H
authors.initials: HH
authors.lastname: Loosli
authors.forename: J S
authors.initials: JS
authors.lastname: Fruchter
authors.forename: R C
authors.initials: RC
authors.lastname: Finkel