Voluminous lava flows at Oldoinyo Lengai in 2006: Chronology of events and insights into the shallow magmatic system

التفاصيل البيبلوغرافية
العنوان: Voluminous lava flows at Oldoinyo Lengai in 2006: Chronology of events and insights into the shallow magmatic system
المؤلفون: Matthieu Kervyn, Gerald Ernst, Jurgis Klaudius, Keller, J., Francois Kervyn, Hannes Mattsson, Frederic Belton, Evelyne Mbede, Patric Jacobs
المساهمون: Earth System Sciences, Physical Geography, Geography
المصدر: Vrije Universiteit Brussel
BULLETIN OF VOLCANOLOGY
مصطلحات موضوعية: Hornito collapse, Oldoinyo Lengai, collapse pit, Earth and Environmental Sciences, lava flow, MODLEN
الوصف: The 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.
وصف الملف: application/pdf
تدمد: 0258-8900
URL الوصول: https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::1f9cf4fa0ff845295ce924238c41e3c3
https://researchportal.vub.be/en/publications/d88a254a-cfb4-4333-ac06-22e41578930d
Rights: OPEN
رقم الانضمام: edsair.dedup.wf.001..1f9cf4fa0ff845295ce924238c41e3c3
قاعدة البيانات: OpenAIRE