Flat
Flat is a common name in Mansfeld copper slate mining for cutting off .
Main areas are part of the alignment pits and are excavated falling when the deposit collapses . Starting from them, the copper slate seam was leveled by striking stretches of bottom.
literature
- G. Leithold et al .: Taschenbuch Bergbau . Civil engineering. Ed .: Chamber of Technology, Association of Mining. tape III . German publishing house for basic industry, Leipzig 1962, p. 489 .
- Horst Roschlau, Wolfram Heinze: Knowledge storage mining technology . Ed .: SDAG Wismut. 1st edition. German publishing house for basic industry, Leipzig 1974, p. 288 .