The Ituwa Surge deposits of the Holocene Ngozi caldera, Mbeya Region, Tanzania

The Ituwa Surge deposits belong to the Holocene Ngozi volcano of the Rungwe Volcanic Province (RVP). They are named after their type locality and place of best exposure, the village of Ituwa in the Mbeya Region of southwestern Tanzania. Volcanism within the RVP started approximately 9 Ma ago and can...

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Bibliographic Details
Published in:International journal of earth sciences : Geologische Rundschau 2015-04, Vol.104 (3), p.749-751
Main Authors: Lenhardt, Nils, Peeters, Gert-Jan, Macheyeki, Athanas S.
Format: Article
Language:English
Subjects:
Calderas
Earth and Environmental Science
Earth Sciences
Geochemistry
Geologists
Geology
Geophysics/Geodesy
GeoSites
Holocene
Mineral Resources
Miocene
Pleistocene
Pliocene
Sedimentation & deposition
Sedimentology
Structural Geology
Volcanoes
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Summary:The Ituwa Surge deposits belong to the Holocene Ngozi volcano of the Rungwe Volcanic Province (RVP). They are named after their type locality and place of best exposure, the village of Ituwa in the Mbeya Region of southwestern Tanzania. Volcanism within the RVP started approximately 9 Ma ago and can be divided into a Late Miocene, a Late Pliocene-Early Pleistocene and a Mid-Pleistocene-recent phase. In the field, the Ituwa Surge deposits can only be observed north of the caldera toward Mbeya. The deposits are easily accessible and provide an excellent opportunity, in particular, for African geologists/volcanologists, to study the proximaldistal relationships of the products of base surges originating from violent caldera eruptions.
ISSN:1437-3254
1437-3262
DOI:10.1007/s00531-014-1113-7