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Wager is most well-known for his work on the Skaergaard Intrusion of East Greenland, which was a milestone in the history of igneous petrology. It laid the founda-tion for a much better understanding of magmatic processes and for a multitude of investigations on similar bodies in other parts of the world. Less well known are Wager’s achievements in mapping an extensive area of East Greenland in which spectacular examples of Tertiary intrusive and extrusive rocks occur. This achievement, which was a major contribution to the understanding of the geological history of the North Atlantic region, was only possible because of Wager’s outstanding abilities as a mountaineer, polar explorer and leader, as demonstrated on his Greenland expeditions of 1930-31,1932,1935-36 and 1953, as well as by his feats on Mount Everest in 1933.

Wager’s interests extended to a wide range of traditional earth sciences, including tectonics, geomorphology, sedimentology and metamorphic processes. In addition, he played an innovative role in the fields of geochemistry and radiometric dating. It was his appreciation of the importance of laboratory techniques and innovations that set his work apart from that of most other field geologists of his time, and this, combined with his thoroughness, gave him an important place in the history of geological science.

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