Arctic Magnetic and Gravity Anomaly Map-PDF

Arctic Magnetic and Gravity Anomaly Map-PDF

Scanned version in high resolution .pdf format, sent by download link.

Note This card is subject to a licence agreement.

This map is also available in digital .pdf format in our catalogue.

This new document is part of the new series of geophysical maps of the CGMW, and includes the magnetic anomaly map and the gravity anomaly map of the Arctic area limited to 60° N. This double map is the result of a close international collaboration between research organisations from Russia, Canada, USA, Finland, Sweden, Denmark, Norway, Germany and France. This work has been published thanks to substantial financial support from the Norwegian Geological Survey (NGU).

Arctic Magnetic and Gravity Anomaly Map-PDF

The magnetic map shows very clearly the contrast between the continental zones, the Cenozoic oceanic accretion zones generated by the Gakkel accretionary rift and also shows the structural complexity of the Canadian basin. It is much more detailed than the polar sector - published at a smaller scale - of the World Magnetic Anomaly Map (WDMAM) published in 2007.

The gravimetric map corresponds to the Bouguer anomalies for the continental parts, and to the Free Air anomalies for the marine parts. The major interest of this document comes from the juxtaposition of these two maps where one can see the complementarity of the data provided by these two geophysical methods, and infer a certain number of conclusions concerning the structure of the lithosphere of this particular sector of our globe.

Arctic Magnetic and Gravity Anomaly Map-PDF