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Petrography of a group of alkali-trachytic dyke rocks from the Julianehaab district, South Greenland
A contribution to the alkali feldspar problem by J. Bondam. The mesozoic sediments of Qeqertarssuaq, Umanak district, West Greenland. By Hilmar Ødum and Eske Koch
BONDAM, J. -- Petrography of a group of alkali-tra -- chytic dyke rocks from the Julianehaab -- district, South Greenland. A contribution -- to the alkali feldspar problem by J. Bon -- dam. The mesozoic sediments of Qeqer -- tarssuaq, Umanak district, West Greenland. -- By Hilmar Ødum and Eske Koch.- København -- 1955. 31,13 S. 4° -- (Meddelelser om Grønl d.135,2.) -- 1956! -- P..