The Tubes [in Bulgarian]
The tubes are cylindrical or conical cavities coming from the core to the surface of white sandstones, located not far from Belogradchik, in the skirt of Venets, the mountain of Belogradchik. Around and within the cavities one can observe dispersed metallic (Fe) particles. These strange formations w...
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| Format: | Article |
| Language: | Bulgarian |
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SCS Consulting Ltd.
2013-09-01
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| Series: | Venec |
| Subjects: | |
| Online Access: | http://www.venets.org/getfile.php?id=148 |