Geology of the Alps (300 Ma), the Hercynian or Variscan orogeny, in which the supercontinent Pangaea formed from Gondwana and Laurasia, was ended. East of the terranes that now form the Alps was the Paleo-Tethys Ocean. The effects of wind and water were able to chemically and mechanically erode and destroy the Hercynic mountain ranges. In the Permian, the main deposits in Europe were sandstone and conglomerate, products of erosion in the Hercynic mountain range. At the same time, crustal extension took place because the mountain range was isostatically unstable (this is called orogenic collapse). Due to extension, basins formed along the axis of
PANGAEA (data library) Marine Environmental Sciences (MARUM), Bremen in Germany. The system is used by various international research projects from public funding as data repository and by the World Data Center for Marine Environmental Sciences (WDC-MARE) as long-term archive. The system was initially developed since 1987 and is operational on the Internet since 1995. The MediaWiki software is used to operate a wiki as PANGAEA manual and reference. PANGAEA is also listed in re3data.org. PANGAEA (data library) PANGAEA - Data Publisher for Earth & Environmental Science is a digital data library and a data publisher for earth system science. Data can be georeferenced