TY  - SER
AU  - Noble,Donald
AU  - Navarro,Pedro
AU  - Quispesivana,Luis
AU  - Peters,Lisa
AU  - Mckee,Edwin
TI  - Ash-flow sheets of early miocene and early pliocene age are present in the Castillo de Callalli, Arequipa department, southern Peru
N1  - bibliogr. p. 37-38
ER  -