Juan Brüggen Messtorff

Johannes Brüggen Messtorff better known by his hispanized name Juan Brüggen (Lübeck, Germany, April 25, 1887 – March 7, 1953, Santiago de Chile) was a German-Chilean geologist. One of his most famous works is the extensive treaty of Fundamentos de la geología de Chile published in 1950. Brüggen Glacier in the Southern Patagonian Ice Field is named after him.

In 1913 he published a report on the iron ores of the Chilean Iron Belt near La Serena and Huasco and the general geology of the region. In his study Brüggen identified El Algarrobo and El Tofo as the main iron ore deposits of Chile.