Contribution of geophysical methods to the geological mapping 1:50,000 of the northwest of Pinar del Río, Cuba

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Abstract

The creation of the 1:50,000 scale geological map of the Republic of Cuba represents a major step forward in the advancement of geological knowledge of the country, following the already completed maps (1:500,000, 1:250,000, and 1:100,000). This work demonstrates the contribution of the geophysical methods gravimetry, magnetometry, and gamma spectrometry during geological mapping on sheet 3483-IV of the national territory. The geophysical response of the existing geological formations in the area is based on the 1:100,000 Geological Map provided by the Institute of Geology and Paleontology – Geological Service of Cuba (IGP), and its characterization is achieved at a scale of 1:50,000. Finally, through the integrated processing and interpretation of the geophysical information and the digital elevation model, a preliminary geological mapping of the area was completed at a scale of 1:50,000, identifying the main lineaments and geological formations. The results obtained confirm the potential of geophysical methods for geological mapping in the national territory.