Klosterbusch colliery quarry
The quarry of the Klosterbusch colliery was the quarry of the Klosterbusch colliery on Kalwes in the Querenburg district of Bochum .
The quarry is the largest geological outcrop in Bochum and has been placed under protection as a natural monument ND 2.5 due to its geological importance . It was once used to extract material to fill the cavities in the old man of the mine .
The area in front of the quarry is used as a test area and for composting cuttings from the Botanical Garden of the Ruhr University Bochum. There is no public access for reasons of road safety, but guided tours are offered on certain occasions.
Geological structure
The Stockum Saddle, part of the folds of the basement caused by tectonic processes, is cut . What can be seen is a sequence of layers of carbon that formed about 300 million years ago. The layers are formed by coal , sandstones , silts (silt) and clayey rocks .
The seams Geitling 2 , Geitling 3 , Finefrau and Finefrau Nebenbank can be seen in the outcrop . Sea fossils and lumps of clay iron were deposited in a horizon above the Finefrau adjacent bank .
The sequence of layers is as follows:
| Mightiness [m] |
description |
|---|---|
| 10 | fine-grain sandstone |
| 4th | sand-streaked slate with clay iron layers |
| 5 | weak sand slate clay |
| 4th | Sandstone, streaked with clay |
| 12 | Slate, pure, with the marine horizon approx. 6 m above the seam Finefrau-Nebenbank (Lingula squamiformis; Lingula mytilloides; Nuculiden; Gastrioceras kahrsi) |
| 0.50 | Flöz Finefrau side bench |
| 0.50 | clayey root soil |
| 7.00 | above: sandy slate clay; below: pure slate with vegetation (sigillaries, calamites and ferns) |
| 0.60 | Seam Finefrau |
| 0.50 | clayey root soil |
| 20.00 | medium-grain to coarse-grain sandstone with conglomerate layers (Finefrau conglomerate). Components: quartz, clay iron stone, silica slate, coals, layers of drift wood. Barite and lead-zinc ores on fissures. |
| 0.40 | Flöz Geitling 3 (mentor) |
| 0.50 | clayey root soil |
| 10.00 | sandy slate clay; pure slate at the base; in the shale 2 m above the seam: marine horizon with lingula (and Bellinurus, very rare) |
| 0.50 | Geitling seam 2 |
| 1.00 | clayey root soil |
| 8.00 | fine-grain sandstone |
| Quarry bottom: light sand, pure slate clay |
fauna and Flora
The rubble in front of the quarry wall forms a south-facing ruderal area on which only pioneer plants thrive, which can cope with extreme environmental conditions such as sliding rock and extreme heat. The sunny areas offer sun-loving animals such as wall lizards a habitat, and solitary bees find nesting opportunities in the natural cavities of the rubble .
See also
Web links
- Text for "Day of the Geotope September 17, 2006" to download (PDF file; 18 kB)
Individual evidence
- ↑ List of layers. In: Carl Hahne: Instructive geological outcrops in the Ruhr area: a guide for friends of geology. Glückauf Verlag, Essen 1958.
- ↑ JESSEN 1956a, p. 300.
- ↑ HAHNE 1958, p. 6 ff.
- ^ Quarry of the union Vereinigte Klosterbusch north of Herbede (Meßtischblatt Bochum): r = 2588.400, h = 5701.350.
Coordinates: 51 ° 26 ′ 26.9 ″ N , 7 ° 16 ′ 16.9 ″ E