Anacker pit

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Anacker pit
General information about the mine
Mining technology Civil engineering
Information about the mining company
Start of operation 1854
End of operation 1913
Funded raw materials
Degradation of Lead , zinc , copper , iron
Geographical location
Coordinates 50 ° 55 '1.5 "  N , 7 ° 13' 45.5"  E Coordinates: 50 ° 55 '1.5 "  N , 7 ° 13' 45.5"  E
Anacker Pit (North Rhine-Westphalia)
Anacker pit
Location of the Anacker pit
Location Hope valley
local community Rösrath
( NUTS3 ) Rheinisch-Bergischer Kreis
country State of North Rhine-Westphalia
Country Germany
District Bensberg ore district

The Anacker mine is a former non-ferrous metal ore mine in the Bensberg ore district in Rösrath . It was located south of the village of Lüderich at the entrance to the tunnel on the Cologne-Kalk-Overath railway line in Hoffnungsthal .

history

The first suspicion dates back to December 20, 1854, that lead and blend deposits were found in the Pfaffenheide near Großeigen. Assumptions were renewed several times on September 6, 1855, March 11, 1856, August 18, 1857 and June 11, 1858. After a field inspection on August 5, 1858 and the corresponding report on September 15, 1858, the mining title deed for lead, zinc, copper and iron ores for the Anacker mine was issued on October 1, 1858 . Individual operating periods followed until December 1, 1862, which were then approved for an indefinite period. Later the AG mining, lead and zinc production in Stolberg became the new owner. Nothing is known about the subsequent operating activities.

The construction of the railroad

During the construction work for the Aggertalbahn between Hoffnungsthal and Overath, a 1086 meter long tunnel had to be built between Klein-Eigen and Jexmühle. Work began on both sides on July 11, 1907. Many unforeseen difficulties arose, so that the completion of the line was delayed. One of the reasons for this was that you had to struggle with fragile rock and water that kept breaking through.

During the construction work in the tunnel, an ore deposit was found with rich deposits of blende. There were also fissures with spate iron , pebbles , copper pebbles , galena and calcite crystals. After the tunnel was completed, this encouraged further exploration work in the vicinity of this deposit. After an explosives magazine had been set up in a tunnel and the necessary buildings for future operations above ground , a shaft began to be sunk . In 1910, 19 miners were employed who brought the shaft down to a depth of 58 meters. At a depth of 54 meters, the first underground excavation level was set at the level of the neighboring railway tunnel between Hoffnungsthal and Honrath. An alignment crosscut opened up a several meters thick corridor near the tunnel, which, in addition to porous quartz masses and rubbed sandstone , spate iron and copper pebbles, also led to galena and zinc blende in isolated places. In 1911 116 t of zinc ore and 1.9 t of lead ore were mined. In doing so, a warehouse with a cover was opened on a route worth building about 60 meters up to the vicinity of the tunnel. In 1912, 22 people worked there, but no ore was extracted. They were busy expanding the mine by, among other things, driving a distance 15 meters above the first underground level and across the tunnel. In 1913, 24 people extracted 138 t of zinc ore and in 1914 with nine people 34 t of zinc ore. Subsequently, the section was put 10 meters above the railway tunnel with tailings , the shafts filled and the daytime facilities demolished. The operation was stopped.

Individual evidence

  1. ↑ a b c Herbert Stahl (editor): Das Erbe des Erzes, Volume 5, New news and stories about the ore district of Bensberg , Bergisch Gladbach 2014, ISBN 978-3-00-044826-3 , p. 36.

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