A.S. Alsharhan

United Arab Emirates University
Faculty of Science
17551 Al-Ain
United Arab Emirates

E-mail: sharhana@emirates.net.ae

Nic Beukes

Department of Geology
University of Johannesburg
University & Kingsway (APK campus)
P.O. Box 524
Auckland Park 2006
Johannesburg
South Africa

E-mail: njb@rau.ac.za

Gilbert Camoin

CNRS / CEREGE
Europole de l'Arbois, B.P. 80
13545 Aix-En-Provence
France

E-mail: gcamoin@cerege.fr

Brian Jones

University of Alberta
Department of Earth & Atmospheric Sciences
T5R 3C8 Edmonton
Canada

E-mail: brian.jones@ualberta.ca

Ryo Matsumoto

Department of Earth & Planetary Sciences
Graduate School of Sciences
University of Tokyo
Hongo, Tokyo 113
Japan

E-mail: ryo@eps.s.u-tokyo.ac.jp

Dilce Rosetti

Instituto Nacional De Pesquisas Espaciais-Inpe Centro De Observação Da Terra-Divisão De Sensoriamento Remoto (DSR)
Av. Dos Astronautas
1758 Jardim Da Granja CP 515
12245-970 São José Dos Campos São Paulo
Brazil

E-mail: rossetti@dsr.inpe.br