Mining

Key Facts

—The deal. France’s national geological survey, BRGM, signed a partnership with the Australian firm Fleet Space Technologies to map minerals under French Guiana.

—The method. Fleet’s system links portable ground sensors to satellites and uses artificial intelligence to build fast three-dimensional pictures of the rock below.

—The prize. The target is a belt of critical minerals such as lithium, copper, niobium and tantalum, hidden under dense rainforest.