We made groundwater tracing in Kolkina dupka cave, Zimevitsa, by measuring of spectra of fluorescence of uranine in dilute from active coal traps. In the trap from the Bov spring was recorded fluorescence of uranine die (Fig.1). This shows that the water from the rivers in Kolkina dupka cave, comes out of the Bov spring, and for a time between 2 and 8 days it passes the distance of 3.8 km underground. This outlines the direction of development of the unexplored parts of the cave.
This research was supported by BSF with DN14/4 grant from 2017 to Y. Shopov.
Authors: Yavor Shopov 1,2,3, Ivan Antonov 2, Valentin Lozanov2, Svetoslav Marinov4 and Pavlin Dimitrov4
1Sofia University, Faculty of Physics, University center for Space Research and Technologies, yyshopov@yahoo.com; 2 Medical University of Sofia, ul. Zdrave 2, Sofia, 3 Space Science Centre for Research and Postgraduate Studies, Durban University of Technology, P. O. Box 1334, Durban 4000 Republic of South Africa, 4caving club “Pod ruba’
Section: Symposium on “Techniques for Remote Location of Unknown Underground Cavities”
Type: oral presentation
Short bio of the presenter: Yavor Shopov is president of UIS commission on Physical Chemistry and Hydrogeology of Karst, Leader of its International Programme on Remote Location of Caves and president of Bulgarian Federation of Speleology.
Оrganization: 1Sofia University, Faculty of Physics, University center for Space Research and Technologies, yyshopov@yahoo.com; 2 Medical University of Sofia, ul. Zdrave 2, Sofia, 3 Space Science Centre for Research and Postgraduate Studies, Durban University of Technology, P. O. Box 1334, Durban 4000 Republic of South Africa, 4caving club “Pod ruba”.
