In 2013, the Geological Survey of Brazil (CPRM) released 56 new maps from geological cartography. These are the first results of the institution”s strategy to boost the knowledge of areas with mineral potential in Brazil, especially in the Amazon region. The mapped areas represents 298,500 km², corresponding at 3.51% of the Brazilian territory. The initiative aims to expedite the provision of geological information necessary to improve the minerals search, essential goods for the country”s development.
“The results show that we can produce more geological maps in less time, using a generating strategy of two cartographic products during the implementation of projects of traditional geological mapping, scales 1:100,000 and 1:250,000″, says Roberto Ventura, Director of Geology and Mineral Resources of CPRM.
According to the institution, in 2013 the CPRMA produced 45 geological maps at a scale of 1:100,000, being 6 in partnership with Universities, and 2 maps at 1:50,000 scale. Another nine maps in 1:250,000 scale were completed. The surveys have been conducted in the states of Piaui, Pernambuco, Ceará, Bahia, Rondônia, Santa Catarina, Pará, São Paulo, Minas Gerais, Goiás, Tocantins, Rio Grande do Sul, Mato Grosso and Mato Grosso do Sul.
Over the past decade, CPRM conducted an ambitious program of geophysical surveys throughout the Brazilian territory. Today, more than 90% of the crystalline basement is already covered by geophysical surveys (magnetometry and gamma spectrometry), which has led CPRM to implement a new strategy to add value on these surveys and expedite the geological mapping of Brazil. This strategy aims at intensive production of Integrate Maps Geophysics-Geology, in scale 1:250,000, with priority on Amazon region.