TY - SER AU - Seyfert,Carl TI - Paleomagnetic evidence in support of a middle proterozoic (Helikian) collision between North America and Gondwanaland as a cause of the metamorphism and deformation in the Adirondacks: summary SN - 00167606 SN - 00167606 KW - Paléomagnétisme KW - Collision plaque KW - Protérozoïque KW - Antécambrien KW - Métamorphisme KW - Déformation KW - Tectonique KW - Gondwana KW - Etats Unis KW - New York KW - Monts Adirondack N1 - ; bibliogr. p. 120 ER -