Seyfert, Carl 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 bibliogr. p. 120 ISBN: 00167606 ISSN: 00167606 Subjects--Topical Terms: PaléomagnétismeCollision plaqueProtérozoïqueAntécambrienMétamorphismeDéformationTectoniqueGondwana Subjects--Index Terms: Etats Unis New York