Gravity - GDB Point Data - GDB Données ponctuelles

Gravity - GDB Point Data - GDB Données ponctuelles is an open dataset from Natural Resources Canada with 2 files (OTHER); catalogue record updated 2017-02-01. On CanQuery you can follow the original downloads. Files are available in English and French.

Gravity anomaly data show variations in the gravity field caused by lateral variations in the density of the Earth's crust and upper mantle that reflect variations in composition and thickness. Systematic gravity mapping began in Canada in 1944 and is ongoing. All data are tied to the International Gravity Standardization Network 1971. Local gravity anomalies result from the juxtaposition of relatively high- and low-density rock types. Longer wavelength anomalies such as the gravity low over the Cordillera and the relative gravity high over oceanic crust largely reflect variations in the thickness of the crust.

Publisher

Natural Resources Canada

Resources

2

Catalogue metadata updated

2017-02-01