Mulde D: Small former opencast mine

Upwards compression of the Muskauer Faltenbogen brought deeper rock strata and brown coal to the surface, where it remains visible to this day. This coal was mined in the Faltenbogen in the period from 1843 until 1973. The Babina pit in Poland, with its small opencast mine Mulde D, was the last to be shut down. The Mulde D opencast mine was functional only in the second half of the 1960s. In the present day, the residual pit is filled with water. The mined object was the major 2nd Miocene Seam Complex (2. MFK, according to its German initials), the upper portion of which stretches over a length of approximately 400 m at this location. As a result of heavy acidification of the subsurface, no new soil or vegetation has yet formed, 40 years after the completion of mining activity.