- „Vordiplom Geologie“ (B.Sc. Geology), Rheinische Friedrich-Wilhelms-Universitaet Bonn, Germany
Dr Anke Zernack
- „Diplom Geologie“ (M.Sc. Geology), Rheinische Friedrich-Wilhelms-Universitaet Bonn, Germany
Title of Masters Thesis & Mapping Project:
“Origin of fine-grained proximal ash layers in the Hauptbritzbank of Laacher See Tephra (12,900 a BP), East Eifel Volcanic Field, Germany”
The mapping part of the project dealt with the stratigraphy , distribution and correlation of the deposits, their lithologies and characteristics. The overall aim of the thesis was to reconstruct the modes of fragmentation, transport and depositional conditions and their implications for the eruption dynamics.
“Elucidating the controls on cycles of growth and destruction of a long-lived stratovolcano, Egmont Volcano, Taranaki, New Zealand”
The ca. 150,000 year old Egmont volcanism is characterised by a series of alternating phases of edifice construction and collapse, often through catastrophic debris avalanches. These types of processes are typical for many andesitic stratovolcanoes but still poorly understood.
By focusing on the long term record of Taranaki/Egmont volcano I want to elucidate the processes that are behind its evolution and apparent cycles in behaviour. My field stratigraphic studies concentrate on the pre-26,000 year old Egmont sequences exposed in sections along the southern and northern coast of Taranaki and involve detailed mapping, correlation and sedimentological analysis of the deposits. The main geochemical analyses are carried out using XRF and EMP, further analytical methods include dating of suitable tephra and/or lignite layers, isotopic, trace-element, and rare-earth element analysis.
- To develop a more detailed understanding of the constructional and destructional history of Taranaki/Egmont volcano, from its birth to the beginnings of its present cone.
- To construct a model of the magma evolution from birth to maturity within an andesitic volcano.
- To integrate magmatic evolution and temporal changes with climatic records to understand the driving forces behind the construction and destruction of andesitic stratovolcanoes.
- To evaluate the results in terms of volcanic hazard assessment.
- Physical volcanology and hazards
- The interplay between volcanism, climate and tectonics
- Volcaniclastic sedimentology
- Volcanic mass-flow generation, flow mechanisms and hazards
- Geochemical evolution of andesitic volcanoes
- Zernack AV, Cronin SJ, Price R, and Stewart RB (2004): What was Mt. Taranaki c. 130000 years ago? In: Geological Society of New Zealand Miscellaneous Publication 117A, pp 122
- Zernack AV, Procter JN, and Cronin SJ (2005): Cyclic growth and destruction of stratovolcanoes. In: Geological Society of New Zealand Miscellaneous Publication 119A, pp 99-100.
Massey Doctoral Scholarship Committee and DAAD
FRST Contract MAU0401 “Learning to Live with Volcanic Risk”.