| ...Während meines Studiums profitierte ich in besonderer Weise von den jeweils dreimonatigen Semesterferien. Ich verbrachte sie hauptsächlich im schweizerischen Binntal, wo ich bei dem einheimischen Strahler Andre Gorsatt quasi „ in die Lehre gehen“ durfte. Ich reinigte und formatierte Fundstücke, b ... more...Während meines Studiums profitierte ich in besonderer Weise von den jeweils dreimonatigen Semesterferien. Ich verbrachte sie hauptsächlich im schweizerischen Binntal, wo ich bei dem einheimischen Strahler Andre Gorsatt quasi „ in die Lehre gehen“ durfte. Ich reinigte und formatierte Fundstücke, begleitete zuerst die Strahlerexkursionen, die Andre Gorsatt anbot und durfte in Folge auch eigene Führungen leiten. Es mag an meinem Habitus von einem Drittel Athlet und zwei Dritteln Pykniker gelegen haben, dass ich in der Hauptsache für die Familien- und Senioren-Führungen vorgesehen wurde... Ene Erzählung von Klaus Schäfer |
| The village and the mine with the same name "Rosia Montana" are located approximately 85 km north of the city of Deva. The mine complex extends over 21.2 square kilometers and is one of the largest gold deposits in Europe. The tunnel system in the underground is several hundred kilometers long and w ... moreThe village and the mine with the same name "Rosia Montana" are located approximately 85 km north of the city of Deva. The mine complex extends over 21.2 square kilometers and is one of the largest gold deposits in Europe. The tunnel system in the underground is several hundred kilometers long and was used until a few years ago. Already in Roman times the tunnels had a length of 145 km. |
| From early tunnel construction in the 18th century to its final closure in the 1950s, the Frankenholz Mine in Germany’s Saar region was a key site of coal mining history. With ambitious shaft projects, its own cableway connection to Bexbach, and remarkable geological features – including fossil disc ... moreFrom early tunnel construction in the 18th century to its final closure in the 1950s, the Frankenholz Mine in Germany’s Saar region was a key site of coal mining history. With ambitious shaft projects, its own cableway connection to Bexbach, and remarkable geological features – including fossil discoveries and natural oil seepages – the mine reflects both the rise of industrial progress and the dangers of underground work. Gas explosions, water ingress, and tragic accidents shaped the lives of thousands of miners. Frankenholz remains a compelling reminder of a bygone mining era. |
| Calcite is one of the most abundant natural minerals. It is found in very different shapes, both compact as limestone as well as sinter in caves and in the crystalline state. But even in our daily life calcite is always present: in some regions it blockes water pipes as "chalk", we build our houses ... moreCalcite is one of the most abundant natural minerals. It is found in very different shapes, both compact as limestone as well as sinter in caves and in the crystalline state. But even in our daily life calcite is always present: in some regions it blockes water pipes as "chalk", we build our houses with it, it is in our food chain and without it we could not stand upright. Calcite is not rare, but the varied mineral on Earth. The variety of forms and variations of the forms of calcite are unmatched in the world of mineralogy. By 2009, more than 800 Calcit forms have been described. |
| Als Bestimmungsmerkmal fallen zweifarbige Einsprenglinge (blaugrau und rosarot) auf, die allerdings auch in der Variante RP26 vorkommen. Das wichtigste Kriterium, um diese beiden Varianten auseinander halten zu können, sind die in der intrusiven Variante vorhandenen, schmalen Zonierungen, welche die ... moreAls Bestimmungsmerkmal fallen zweifarbige Einsprenglinge (blaugrau und rosarot) auf, die allerdings auch in der Variante RP26 vorkommen. Das wichtigste Kriterium, um diese beiden Varianten auseinander halten zu können, sind die in der intrusiven Variante vorhandenen, schmalen Zonierungen, welche die blaugrauen Kristalle dünn umschließen. Generell finden sich 2 Arten von Einsprenglingen in der intrusiven Variante: 1. kleine, zerbrochen wirkende rosarote und 2. größere, blaugraue mit schmaler Zonierung, welche die gleiche Farbe aufweist, wie die der Kleineren Einsprenglinge. ... Ein Beitrag von Jörg-Florian J. |