Voluminous Lava Flows at Oldoinyo Lengai in 2006: Chronology of Events and Insights into the Shallow Magmatic System

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dc.contributor.authorKervyn, Matthieu
dc.contributor.authorErnst, Gerald G. J.
dc.contributor.authorKlaudius, Jurgis
dc.contributor.authorKeller, Jörg
dc.contributor.authorKervyn, François
dc.contributor.authorMattsson, Hannes B.
dc.date.accessioned2016-09-21T16:56:08Z
dc.date.available2016-09-21T16:56:08Z
dc.date.issued2008-02
dc.descriptionFull text can be accessed at http://link.springer.com/article/10.1007/s00445-007-0190-xen_US
dc.description.abstractThe largest natrocarbonatite lava flow eruption ever documented at Oldoinyo Lengai, NW Tanzania, occurred from March 25 to April 5, 2006, in two main phases. It was associated with hornito collapse, rapid extrusion of lava covering a third of the crater and emplacement of a 3-km long compound rubbly pahoehoe to blocky aa-like flow on the W flank. The eruption was followed by rapid enlargement of a pit crater. The erupted natrocarbonatite lava has high silica content (3% SiO2). The eruption chronology is reconstructed from eyewitness and news media reports and Moderate Resolution Imaging Spectroradiometer (MODIS) satellite data, which provide the most reliable evidence to constrain the eruption’s onset and variations in activity. The eruption products were mapped in the field and the total erupted lava volume estimated at 9.2 ± 3.0 × 105 m3. The event chronology and field evidence are consistent with vent construct instability causing magma mixing and rapid extrusion from shallow reservoirs. It provides new insights into and highlights the evolution of the shallow magmatic system at this unique natrocarbonatite volcano.en_US
dc.identifier.citationKervyn, M., Ernst, G.G., Klaudius, J., Keller, J., Kervyn, F., Mattsson, H.B., Belton, F., Mbede, E. and Jacobs, P., 2008. Voluminous lava flows at Oldoinyo Lengai in 2006: chronology of events and insights into the shallow magmatic system. Bulletin of Volcanology, 70(9), pp.1069-1086.en_US
dc.identifier.doi10.1007/s00445-007-0190-x
dc.identifier.urihttp://hdl.handle.net/20.500.11810/4089
dc.language.isoenen_US
dc.subjectOldoinyo Lengaien_US
dc.subjectHornito collapseen_US
dc.subjectLava flowen_US
dc.subjectCollapse piten_US
dc.subjectMODLENen_US
dc.titleVoluminous Lava Flows at Oldoinyo Lengai in 2006: Chronology of Events and Insights into the Shallow Magmatic Systemen_US
dc.typeJournal Articleen_US
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