ELEMENTAL ABUNDANCES IN COROTATING INTERACTION REGIONS AT HIGH SOLAR LATITUDES

Throughout 1993, as the Ulysses spacecraft traveled from similar to 23 degrees to similar to 45 degrees south heliolatitude, the HI-SCALE in strument on the spacecraft measured a recurrent series of enhanced par ticle fluxes with a recurrence period of similar to 26.5 days. These p articles are accelerated from a background seed population by the coro tating interaction regions (CIRs) associated with a southern solar pol ar coronal hole. Using the Wart detector telescope of the HI-SCALE ins trument, we have analyzed the elemental abundances of C, N, O, and Fe relative to He for 0.5 -4.0 MeV/nucl ions and Ne, Mg, and Si for 1.0-4 .0 MeV/nucl ions in the CIRs. We compare the relative abundances to so me previous measurements reported from 1 A.U. as well as with solar ph otosphere abundances. We note that HI-SCALE measurements of the heliol atitude dependence of the oxygen abundance and spectrum as reported by Lanzerotti et al. (1994) suggest that a substantial fraction of the s eed population for the CIR-accelerated oxygen is likely to be the anom alous oxygen component of the cosmic rays.