about the collection
Team Lavaka Image Collection
The images archived on this site were collected between 2003 and 2005 in heavily lavaked regions near Miarinarivo (west-central Madagascar) and Amparafaravola (Lac Alaotra region, north-central Madagascar).

The lavakas are assigned to evolutionary stages I-V according to the criteria of Wells et al. (1991)* and brief descriptions are provided. Geographic locations are given in UTM co-ordinates (zone K38).

*Wells, N.A., Andriamihaja, B., and Rakotovololona, H.F.S., 1991, Patterns of development of lavaka, Madagascar's unusual gullies: Earth Surface Processes and Landforms, v. 16, p. 189-206.
Team Lavaka Image Collection
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Team Lavaka is a collaborative research group led by Rónadh Cox of Williams College and Michel Rakotondrazafy of the Université d'Antananarivo, supported by the National Science Foundation (Grant EAR 0415439).

Anybody may download and use these images, but please credit the photographer and the Team Lavaka Image Collection.

The image database was compiled by Fara Rasoazanamparany and Rónadh Cox, and the online collection is maintained by Jonathan Morgan-Leamon. Contact Rónadh Cox for further information, or to report any errors.

Current and former members of Team Lavaka are:
 Prof. Michel Rakotondrazafy. Dipartement des Sciences de la Terre, Université d'Antananarivo
Prof. Rónadh Cox. Geosciences Department, Williams College.
Nathalie Bakoariniaina, Maîtrise 1999 Université d'Antananarivo; M.Sc. 2006 St. Louis University
Tyler Corson-Rikert, B.A. 2006 Williams College
Matt Jungers, B.A. 2003 Williams College; M.Sc. (expected) 2007 University of Vermont
Liz Gress, B.A. 2006 Williams College
Jane McCamant, B.A. 2005 Williams College
Fara Rasoazanamparany, Maîtrise 2004 Université d'Antananarivo