Index Catalog // ScholarsArchive@OSU

Start Over

Filtering by: Alternative title ssim EC 1238 Advisor de Silva, Shanaka L. Non-Academic Affiliation Oregon State University. Graduate School

Stratigraphy, sedimentology, and eruptive dynamics of the 2-ka eruption of Misti Volcano, southern Peru

Creator:

Harpel, Christopher J.

Abstract:

The 2-ka eruption of Misti volcano produced voluminous flowage deposits and a wide-spread tephra-fall deposit. The flowage deposits form large terraces within channels draining the south side of the volcano. All the channels drain into the city of Arequipa. Arequipa's city center is ~16 km from the summit of the...

Resource Type:

Dissertation

Full Text:

t y p e ar e: t ep h ra -f al l (T F ), u n sp ec if ie d p y ro cl as ti c fl o
Investigating Timescales of Resurgence at Large Calderas: Post-74 ka Activity at Toba Caldera, Sumatra, Indonesia

Creator:

Mucek, Adonara E.

Abstract:

The Toba Caldera Complex is the youngest resurgent caldera in the last 100 kyrs, formed from four overlapping eruptions starting 1.2 Myrs ago. The last caldera-forming eruption, the Youngest Toba Tuff eruption, occurred ~74 kyrs ago, emitting 2800 km3 of ash and pumice into the atmosphere and forming the caldera...

Resource Type:

Dissertation