The Laboratory of Spectrometry Gamma and Luminescence (LEGaL) was founded in 2012 and develops research on geochronology and provenance of mineral luminescence sediments (OSL, optically stimulated luminescence, and thermoluminescence). Luminescence dating allows to determine ages from tens to hundreds of thousands of years, and is widely used in research on Quaternary environmental changes and archeology. The research developed by LEGaL involves the participation of several masters and doctoral students and postdoctoral researchers and has emphasized the relationship between environmental changes and climate change in the interior and coastal areas of South America. These areas include, for example, the Amazon, Pantanal, northeast coast, southeast and south of Brazil, north coast of Peru and south-central coast of Chile. LEGaL's analytical infrastructure includes mineral separation line (quartz and feldspar), high resolution gamma spectrometry (HPGe, Canberra Industries) and two RisØ National Laboratory (RisØ National Laboratory) equipped with beta radiation sources and blue and infrared for stimulation, being a reader equipped with accessory (single-grain attachment) for measurement for individual grains and another with violet laser.