Treppenhauer
The Treppenhauer (deprecated also Trappenauer1 ) is a 351 m high mountain altitude southwest of Saxony castle, a district of the city of Frankenberg in Saxony. Early on he went to intensive mining of silver and copper to that in 13-14. Century led to the formation of the now desolate mountain town Bleiberg.
Description and Geology
The predominantly forested Treppenhauer rises over 100 m height difference steeply on the right bank of the Zschopautal while he gently merges into the neighboring countryside to the north and east. Geographically, it is located in the Erzgebirge on the border between Erzgebirgsbecken and dump - Lößhügelland.
Geologically, it is part of the outer coat of the Saxon Granulite slate. The area is tectonically highly stressed and characterized by Season fractures. In the northwestern part outweigh Silurian rocks, especially schwärzlichgrauer, phyllitischer slate, shale nodes and a larger block of chert, in the southeastern core part against kneaded Devonian clay and chert and limestone.
The area is crossed at frequent intervals by several parallel, northwest - trending transitions. The main course consisted mainly of barite and some quartz with traces of chalcopyrite and was 1-1.5 m thick.
Mining
The mining industry in this area begins in the middle of the 13th Jahrhunderts2 than the rural population, extensive silver finds in the Freiberg region and the introduction of mountain freedom by Margrave Otto of Meissen led to the first mining rush. The mining industry is rapidly gaining a great importance, and led quickly to the development of the mining city Bleiberg. In a very small room were numerous mines in the mining, promoted in a similar method to the Duckelbau copper, lead and silver ore. During the mining of silver was carried out along the course barite, quartz, copper was extracted from the shale blackish. Already in the middle of the 14th century mining was stopped again - and forced the inhabitants to leave the mountain town.
In the 15th and 16th centuries, there were unsuccessful attempts to resume mining. The mining industry is referred to as decommissioned long.
In the 18th century the staircase Hauer of the stairs Auer adit was driven from Zschopautal out at the foot. Particularly in the period 1740 to 1786 the tunnel was excavated to a length of 1209 m. The tunnel was followed by the main course about 380 m and extends almost to Saxony castle. In this case, a day shaft and a plurality of light holes was drilled.
In February 1912, the tunnel was awarded again to obtain water for the city Mittweida.
Around 1947/48 examined the SAG bismuth after uranium ores.