File:Sperenberg 8.jpg
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Deutsch: Gedenktafel zum „tiefsten Bohrloch der Welt“ (Bohrloch Nr. 1), Boden-Geo-Pfad am Gipsbruch 2 der Sperenberger Gipsbrüche; Bereich im Landschaftsschutzgebiet „Baruther Urstromtal und Luckenwalder Heide“, Landkreis Teltow-Fläming (Brandenburg) |
| Inscription | Das tiefste Bohrloch der Welt In Sperenberg wurde 1867 bis 1871 die Bohrung ·Sperenberg 1· niedergebracht. Sie war die erste Bohrung über 1000 Meter Tiefe und mit 1271,6 Metern für 15 Jahre die tiefste der Welt. Bergrat Eduard Dunker aus Halle führte in dieser Bohrung exakte Temperaturmessungen durch, die eine Temperaturzunahme von 1 Grad Celsius auf je 33,7 Meter Tiefe ergaben. Als geothermische Tiefenstufe wurde der ermittelte Wert ab 1900 weltweit in die geologischen Lehrbücher übernommen. ⚒ Bohrloch Nr. 1 27.03.1867 bis 15.09.1871 |
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| Source | Own work |
| Author | Leila Paul |
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Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the section entitled GNU Free Documentation License. |
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
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| current | 20:03, 13 April 2014 | | 4,752 × 3,168 (8.28 MB) | Leila Paul (talk | contribs) |
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