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Geophysical Study and Geological Considerations on Neogene Volcanites from Eastern Carpathians
- Publisher: European Association of Geoscientists & Engineers
- Source: Conference Proceedings, 11th Congress of the Balkan Geophysical Society, Oct 2021, Volume 2021, p.1 - 5
Abstract
The Eastern Carpathians comprise three major units: the northern part (Oas-Gutai mountains), the middle part (Tibles-Rodna-Bargau mountains) and the southern part (Calimani-Gurghiu-Harghita mountains). Neogene volcanic activity took place in the Badenian-Pliocene interval, during which periods of paroxysm alternated with periods of calm. This began with an explosive episode when a volcanic-sedimentary formation was put in place, represented by volcanic tuffs and rhyolite agglomerates, followed by andesitic lava flows.
For a good image of the Eastern Carpathian anomalies, we present, in our paper the maps, made with the Surfer program, based on the data obtained through digitalizing geophysical maps of Romania and data from the Bureau Gravimetrique International, using Surfer software, kriging method for interpolation. Also, we made maps with other geophysical parameters after smoothed and filtrated of geophysical data (Magnetic anomaly, Bouguer anomaly, Free Air anomaly, Isostatic anomaly, geoid) and correlations between them.