Institut d’Estudis Catalans, Catalonia, Spain.
The Geochemical Society.
Sociedad Geológica Mexicana (1998-2009)
Asociación de Ingenieros de Minas, Metalurgistas y Geólogos de México AIMMGM (1998-2009)
Society of Economic Geologist (SEG; 1998-2007)
Emails: jtritlla@gmail.com / gemix.earth@gmail.com
17490 Llançà, Girona, Catalonia, Spain.
Photo in Banner: Islands seen from Suomenlinna Sveaborg, near Helsinki, Finland, November 2014.