MSGID: 1:317/3 6272bf68   
   PID: hpt/lnx 1.9.0-cur 2019-01-08   
   TID: hpt/lnx 1.9.0-cur 2019-01-08   
    EPOD - a service of USRA   
      
   The Earth Science Picture of the Day (EPOD) highlights the diverse processes   
   and phenomena which shape our planet and our lives. EPOD will collect and   
   archive photos, imagery, graphics, and artwork with short explanatory   
   captions and links exemplifying features within the Earth system. The   
   community is invited to contribute digital imagery, short captions and   
   relevant links.   
      
      
    Calymene Fossil in Spain   
      
      May 04, 2022   
      
       Calymene(2)   
      
      Photographer:  Carlos Gómez Fernández   
      
      Summary Author:  Carlos Gómez Fernández   
      
      Hidden within the landscape around the  Cijara Lake and reservoir in   
      western Spain are metamorphic shakes dating to the  Ordovician   
      Period. During this geologic period that occurred between 485 and 444   
      million years ago, global ocean levels were exceptionally high, which   
      led to considerable  sediment deposition on the seabed. As a result   
      of combined processes of high temperatures and pressures, specimens   
      buried in these sediment layers were preserved as  fossils. One such   
      outstanding example is the  calymene fossil shown in the photo   
      above. Despite the harsh environmental conditions over the past several   
      hundred million years, the very fragile fossil remains almost fully   
      intact. The 50mm diameter camera lens serves as a scale for this   
      specimen. This photo was taken on February 3, 2022.   
        * Embalse de Cijara, Cáceres, Spain Coordinates: 39.3683, -4.9533   
      
   Related EPODs   
      
       Calymene Fossil in Spain  Archive - Tongariro National Park, New   
      Zealand  Pinwheel Rock in the Mojave Desert  Archive - Great Sand   
      Dunes National Park  Drone Image Over Mount Etna  Archive -   
      Glacial Evidence in Central Park   
       More...   
      
   Geology Links   
      
        *  Earthquakes   
        *  Geologic Time   
        *  Geomagnetism   
        *  General Dictionary of Geology   
        *  Mineral and Locality Database   
        *  Mohs Scale of Mineral Hardness   
        *  This Dynamic Earth   
        *  USGS   
        *  MyShake - University of California, Berkeley   
        *  USGS Ask a Geologist   
        *  USGS/NPS Geologic Glossary   
        *  USGS Volcano Hazards Program   
      
   -   
      Earth Science Picture of the Day is a service of the  Universities   
      Space Research Association.   
      
   https://epod.usra.edu   
       
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