Asperbras has a wealth of experience in technology and geoscience projects, undertaking significant geological and mining activities in Brazil and in various countries on the African continent.
With a team of geophysicists, geologists, cartographers and physicists, aerial geophysical surveys are conducted using Grand Caravan airplanes and with the use of sophisticated, state-of-the-art equipment.
In 2011, Asperbras initiated the aero geophysical and geological survey Project in Congo, Africa. The company gave Congo-Brazzaville’s government the integral mapping of the country’s soil, which was created by the latest technological aero geophysical equipment, operated by our professional team, who identified the mineral riches of the country. The team consists of specialized geologists in the mining sector, airplane pilots and specialized professionals in the logistics and evaluations of the complete mapping of the mining areas. Besides the airplanes and high-technological equipment, our professionals have a geochemical laboratory for data analysis.
The Icozeira Project, in northern Bahia, is the first mining research project performed by Asperbras in Brazil with the uses of technological innovative methods that helped the discovery of a mineral field. Icozeira Project has an area that covers approximately 600 square km with 32 kinds of minerals processed and registered in Brazil’s National Department of Mineral Production (DPNM). The project is at its final stage through indirect methods ranging between geophysical and geochemistry and the direct methods, including field mapping and dissembling. The final result is the emergence of a polymetallic mine, highlighting high purity iron, chromo, nickel and quartz. All the environment licenses and necessary authorities are being obtained with the continuity of our work, as it is outlined in Asperbras main objectives.
Asperbras performs projects that have the main objectives to generate methods of finding active minerals. The activities that consist in the evaluation of the geological potential of an area, located in mineral occurrences, definition of resources and limits from a mineral deposit.
1) Mineral Prospecting
2) Geological Recognition
3) Rock Sampling
4) Geochemical Survey
5) Soil Geochemistry
6) Sediment Geochemistry
7) Panning Concentration
8) Geochemical Soil Survey
10) GIS development— Geographic Information System —the GIS is an operational system developed to capture, store, consult and analyze geographic data. It consists in the compilation and centralization of all the spacious information of the project, to the elaboration of cartography and multi-time analysis.
To perform the aero geophysical survey, Asperbras depends on a modern fleet of fully-equipped Grand Caravan aircraft and a highly-capable team of professionals. They are equipped with a magnetometer, a gamma spectrometer or a gravimeter, which helps in conducting research for the survey and mapping of areas with potential for mining, oil and gas exploration.
Magnetic method — The aeromagnetic survey is one of the most utilized methods in conducting geophysics research, with the capacity of detecting zones with mining potential, especially those with iron, and is also used in other big geological structures. These are then connected with other methods, such as the seismic, for instance, that helps in the reduction of risks and in the exploration of hydrocarbons. The magnetic method utilizes highly sensible and precise equipment that measures the generated magnetism produced in the Earth’s interior, supplying information related to the contrast in magnetism between magnetic structures and different properties visible in the its surface and subsurface.
Gamma spectrometric method – The aero-gamma spectrometry allows fast and efficient regional mapping by providing additional information to geological maps. Thus, the maps can report the presence of uranium directly in the new filed, and they also help in the location of mineral deposits related to hydrothermal alterations.
Gravimetric method — The geophysical regional survey with gravimetry is very important in locating the sedimentary bays, from potential aquifers area and in the search for hydrocarbons, because it is capable of covering large areas in little time for the selection of accelerating targets outlined in the research system. The gravimetric measuring method is based in the study of the variation in gravitational acceleration over the Earth’s surface, which is caused by the difference in density of its rocks.
Processing of data, elaboration of maps and reports and interpretation of geophysics data — The processing of data is done through experienced geophysicists who are responsible for the analysis of data and the making of final products, such as reports and maps.
ASPERBRAS – Brazil UNIT
Av. Presidente Juscelino Kubitschek, 1400
7º andar Itaim Bibi — São Paulo/SP
Phone: +55 (11) 3555-4000
Fax: +55 (11) 3555-4001