Portal de Periódicos da CAPES

The Stratigraphy of the Ejecta from the 1912 Eruption of Mount Katmai and Novarupta, Alaska

1968; Geological Society of America; Linguagem: Inglês

10.1130/mem116-p153

0072-1069

Garniss H. Curtis,

Cryospheric studies and observations

Nine principal layers of tephra have been distinguished in the vicinity of Mount Katmai and Novarupta. These were products of the 1912 eruption, and five of them represent major explosive events. Isopachous maps for four of the five layers show conclusively that they originated at Novarupta; while the thickness and coarseness of the other — the bottom layer — suggest that it could not have come from Mount Katmai, and that Novarupta is very probably its source also.