Deadline extended - Two volcano-related sessions at 35th International Geological Congress, Cape Town
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Dear all,
Good news: the abstract submission deadline for the 35th International Geological Congress has been postponed to 29th February 2016. The details of the two volcano sessions are copied again below. Please do forward this information to anyone in your networks who might be interested.
Best wishes
Karen Fontijn
Dear all,
We would like to draw your attention to two volcano-related sessions that will be organised at the 35th International Geological Congress in Cape Town, South Africa, from 27th August – 4th September 2016, i.e. ideal in combination with a (Northern) summer holiday! Full session descriptions are copied further below.
The first session, “Cenozoic to Recent Volcanism in Africa”, invites contributions on any aspect of the volcanology, petrology or geochemistry of any of the hundreds of volcanoes on the African continent, especially along the East African Rift and the Cameroon Volcanic Line. Contributions on continental rift volcanism in other parts of the world, and relevant analogues to African volcanism, will also be warmly welcomed.
The second session, “Tephrochronology and its applications in East Africa”, is deemed to attract a multidisciplinary audience including tephrochronologists, volcanologists, palaeoenvironmentalists and palaeoanthropologists. This session invites contributions on the use of tephra as a geochronological tool, for a variety of purposes.
The abstract deadline is 31st January 2016, and we would especially like to see contributions from African scientists. Early-career scientists (including YES participants) and/or scientists from low-income countries may apply for financial support through the GeoHost Programme. This support will cover travel, accommodation, meals and the abstract fee.
We hope to see many of you there!
On behalf of all conveners,
Karen Fontijn
Cenozoic to Recent Volcanism in Africa
Africa’s population annually increases in excess of 2% per year. This growth is accompanied by an increase in population density in the fertile plains surrounding the volcanoes of the East African Rift system (EARS) and the Cameroon Volcanic Line (CVL). These volcanoes are related either to hotspots, the rifting in East Africa, or a combination of the two. Of the 150 African volcanoes catalogued as either active or having erupted in the past 10 ka, very few have been studied in detail, and few are monitored. This amplifies uncertainty in assessing the hazards posed by these volcanoes, which include earthquakes, lava flows, gas emissions, tephra falls, pyroclastic density currents, lahars, volcanic debris avalanches, and even tsunamis. A key to improving our knowledge base of volcanism in Africa is to understand and learn from past eruptions, their deposits and effects on the environment and population. In this session, therefore, we invite contributions concerning volcanism of the EARS and CVL, from the onset of rifting during the Cenozoic through the complicated interactions of rift- and hotspot-related volcanism to hazard assessment on active volcanoes. Presentations may vary in focus from detailed field studies of individual volcanoes (based on stratigraphic, geochronological, petrological, geochemical, and geophysical techniques, or numerical or analogue modelling approaches), to regional scale inventories and models (e.g., based on satellite remote sensing studies). We also welcome contributions concerning aspects of monitoring and risk management for African volcanoes (e.g., the threat of ash clouds to aviation; the application of Earth observation tools).
Conveners: Nils Lenhardt, Clive Oppenheimer, Karen Fontijn, Gezahegn Yirgu, Emmanuel Cheo Suh
Tephrochronology and its applications in East Africa
Widespread tephra horizons, typically resulting from ash fallout from large volcanic eruptions, have the potential to form excellent isochronous marker horizons across diverse depositional environments. This provides the opportunity to use well-characterised tephra horizons as marker horizons to synchronise sedimentary archives studied for a variety of applications, including volcanology, archaeology, palaeontology, palaeoclimatology, palaeoecology and palaeoseismology. In East Africa, tephrochronology has been successfully applied in multiple disciplines, and on varying timescales: from regional-scale synchronisation and dating of hominin sites, to more focused studies of the Late Quaternary eruptive history of specific, potentially active, volcanoes. In this session we invite contributions from various scientific disciplines using tephra as a geochronological tool, particularly in East Africa. We especially welcome ideas on how to tackle the challenges that may exist in the various applications of tephrochronology, e.g. technical challenges in absolute dating or analysing chemical composition, identifying source volcanoes, distinguishing between multiple eruptions from the same source, distinguishing primary from secondary reworked tephra, etc. We are confident this session should stimulate discussion across a range of disciplines and applications.
Conveners: Karen Fontijn, Erin DiMaggio, Victoria Smith, Gezahegn Yirgu
Volcano Listserv is a collaborative venture among Arizona State University (ASU), Portland State University (PSU), the Global Volcanism Program (GVP) of the Smithsonian Institution's National Museum of Natural History, and the International Association for Volcanology and Chemistry of the Earth's Interior (IAVCEI).
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