Institution: | 1DEPARTMENT OF GEOLOGY, PO BOX 64, FIN-00014 UNIVERSITY OF HELSINKI, HELSINKI, FINLAND
2GEOLOGICAL SURVEY OF FINLAND, PO BOX 96, FIN-02151 ESPOO, FINLAND
3DEPARTMENT OF PHYSICS AND EARTH SCIENCES, UNIVERSITY OF NORTH ALABAMA, POBOX 5172, FLORENCE, AL 35632-0001, USA |