International Focus Group on

Tephrochronology (INTAV)

 
 

Welcome to INTAV, the International Focus Group on Tephrochronology and Volcanism. INTAV is a worldwide collective of geoscientists with a central interest in tephra (volcanic ash) studies and their application as a linking, dating, and synchronising tool in a wide range of disciplines including Quaternary stratigraphy, palaeoclimatology, palaeoecology, physical geography, geomorphology, pedology/palaeopedology, archaeology, geochronology, and also volcanology, including volcanic stratigraphy, volcanic petrology, and volcanic hazards and impacts. The word ‘tephra’ derives from a Greek word meaning 'ashes'. Tephrochonology refers to the use of tephras as a stratigraphic linking and dating tool but it is also used more broadly as a collective term for the study of tephras. People who study tephras and their application are referred to as tephrochronologists.


INTAV was formed as an international focus group (IFG) in 2007 at the International Union for Quaternary Research (INQUA) congress held in Cairns and is affiliated to that organisation and specifically as a group within the Stratigraphy and Chronology Commission (SACCOM). It replaced previous INQUA-affiliated groupings of tephrochronologists and volcanologists known as Sub-commission on Tephrochronology and Volcanism (SCOTAV), Commission on Tephrochronology (COT), and earlier groups dating back to 1961. The INTAV executive and many members believe strongly in the importance of tephrochonologists being connected through INTAV and its activities, and David Lowe and eh executive re-applied to INQUA in early 2014 to re-establish INTAV as a ‘new’ IFG for another 8-year period. The core project of INTAV (2015-2023) is to enhance tephrochronology as a global research tool and its application in multiple Quaternary disciplines and volcanology. This aim will be met through seven objectives that contribute to improving the methodologies of tephrochronology and thus, through chronostratigraphy, support and underpin many Quaternary projects as well as volcanological applications.


This website is simply an entry point for those interested in tephra studies and their application. The names and addresses of the current executive of INTAV are given. Please feel free to contact them about any matters relating to INTAV activities. To join INTAV, please enter ‘Tephra’ in the ‘Search’ box top right at www.jiscmail.ac.uk. Searchable archives of internet discussions on tephra studies are at www.jiscmail.ac.uk/lists/TEPHRA.html.


Contact addresses of the current executive INTAV 2011-2015

President
Professor David J. Lowe
School of Science, Faculty of Science and Engineering
University of Waikato, Private Bag 3105
Hamilton 3240, New Zealand
d.lowe@waikato.ac.nz

Vice president
Professor Takehiko Suzuki

Department of Geography

Tokyo Metropolitan University

1-1 Minami-Osawa, Hachioji-shi, Tokyo 192-0397, Japan

suzukit@tmu.ac.jp


Secretary
Dr Victoria Smith

Research Laboratory for Archaeology and the History of Art
University of Oxford

Oxford OX1 3QY, UK

victoria.smith@rlaha.ox.ac.uk


 

From top: Karymsky, Kamchatka, Russia erupting in August 2006; Active Tephra meeting in Kirishima, Japan; glass shards in a core from Lago Grande di Monticchio, Italy; and tephra within the Tenjindan archaeological site, Kyushu, Japan.