An Investigation of a Neogene Valley in the Ugra National Parkстатья
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Дата последнего поиска статьи во внешних источниках: 28 мая 2015 г.
Аннотация:A paleovalley in the vicinity of the village of Aleksandrovka (Kaluga oblast) has been investigated
within the framework of a geophysical survey by Moscow State University for 5 years. A local magnetic anomaly in the region of the paleovalley (a grid of 300 × 1000 m and a scale of 1 : 2500) has been confirmed according to the results of electricalresistivity tomography (ERT) and the spectral induced polarization (IP)method for a series of four profiles. IP measurements at several frequencies have permitted some additionalconclusions about the nature of the anomaly. Based on the ERT 2D inversion and IP results, a clear correlation has been revealed between the magnetic anomalies and the highfrequency IP anomalies.