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Análise da recepção do sinal VLF da Estação NAA (24.0 Khz) EUA e sua utilização...

During the last decades, several authors have demonstrated the usefulness of VLF (Very Low Frequency) geophysical surveys as a fast and powerful tool on surveying geological structures (faults, fractures, diaclases, contacts, dikes, etc.). Other applications involve mineral prospecting, civil engineering, contaminants identification and especially groundwater prospecting. During this research, it was verified t...