| In 1978 the US - American geologist Walter Alvarez gained a narrow pattern red clay in the Italian Apennines and certain age these samples to approximately 65 million years , ie at the end of the Cretaceous period and the beginning of the Tertiary period. This very thin lime- clay layer lies between ... moreIn 1978 the US - American geologist Walter Alvarez gained a narrow pattern red clay in the Italian Apennines and certain age these samples to approximately 65 million years , ie at the end of the Cretaceous period and the beginning of the Tertiary period. This very thin lime- clay layer lies between two calcareous sediments and showed a different fossil record , which to a mass extinction ( faunal ) hinted . While further analysis Alvarez noted a high iridium concentrations; a typical ... An article by Peter Seroka (written in german) |
| In the last 10 years, in addition to further development, the focus has been on cooperation and securing the future. In the year 20 after foundation, we have now taken an overdue and large step in this direction... ... moreIn the last 10 years, in addition to further development, the focus has been on cooperation and securing the future. In the year 20 after foundation, we have now taken an overdue and large step in this direction... |
| ... Am Ende der Braunkohlenzeit, im Pliozän, überwand der junge Rhein, aus der Mainzer Gegend kommend, zum ersten Mal das Rheinische Schiefergebirge. Mit dem Ausklingen der Braunkohlezeit schwand auch im nördlichen Rheinland das subtropische Klima. Zu dieser Zeit suchte der Rhein mit der Ur-Maas den ... more... Am Ende der Braunkohlenzeit, im Pliozän, überwand der junge Rhein, aus der Mainzer Gegend kommend, zum ersten Mal das Rheinische Schiefergebirge. Mit dem Ausklingen der Braunkohlezeit schwand auch im nördlichen Rheinland das subtropische Klima. Zu dieser Zeit suchte der Rhein mit der Ur-Maas den Weg zum Meer und lagerte die ältesten Diluvialschotter in Form von wasserhellen und milchigen Quarzen sowie anderen Kieselgesteinen ab. ... Ein Beitrag von Günter E. |