Kalvig, Per, Geological Survey of Denmark and Greenland, Øster Voldgade 10, DK-1350 Copenhagen K. Denmark, Denmark

• GEUS Bulletin Vol. 31 (2014): Review of Survey activities 2013 - RESEARCH ARTICLE | SHORT
  To what extent is Denmark vulnerable to mineral supply shortage?
  Abstract  PDF
• GEUS Bulletin Vol. 26 (2012): Review of Survey activities 2011 - RESEARCH ARTICLE | SHORT
  Rock phosphate and lime for small-scale farming in Tanzania, East Africa
  Abstract  PDF
• GEUS Bulletin Vol. 28 (2013): Review of Survey activities 2012 - RESEARCH ARTICLE | SHORT
  Fingerprinting of corundum (ruby) from Fiskenæsset, West Greenland
  Abstract  PDF