
A NEW CLAY FIELD IN THE OUTSKIRTS OF CHIRPAN, BULGARIA
(SGEM Scientific GeoConference, 2001, Lenin Dragomanov)
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About two decades ago, in the land field of Orisovo village, situated on the west side of the town of Chirpan, by means of probes with depth over 280 to 380m, Eocenic Red Clays with big concentration of iron were found. Their thickness is more than 200 – 250m, and their padding, with depth over 600m is not reached. The base clay mineral is ilit. The process of sedimentation took place in considerably small but deep ancient lake by almost desert climate, in the middle of Eocene.
