The Skaergaard intrusion: from icon to precious metal deposit

Ever since Wager and Deer's classic memoir in 1939 the Skaergaard intrusion has been (or should have been) a central part of every student's education in igneous petrology. Seventy years after the initial fieldwork it is still a major target for academic research, seeking to understand the processes of magmatic diversification. Consequently, a huge literature has accumulated on the subject. Recently, attention has turned to the Skaergaard as a precious metal exploration target.