00432oas 2200169z- 450 996213197203316(DE-599)ZDB2456736-X(CKB)1000000000528656(EXLCZ)99100000000052865620200301cuuuuuuuu -u- -engGeoSpectrumAmerican Geological InstituteJOURNAL996213197203316GeoSpectrum2159588UNISA