Resolution No.7 (1979): Cooperative project for geomagnetic secular variation study with sediments in lakes

IAGA, noting that a comprehensive study along an east-west profile of geomagnetic secular variations recorded in sediments deposited since the last glaciation in lakes is likely to yield new data basic to our understanding of the origin of the geomagnetic field and that such a profile would be optimally located in the Eurasian and American continents, within a band of latitudes between 40 and 50 degrees N, recommends that National Bodies in the respective countries support the preparation of a cooperative project in which standardised techniques will be used.