Bedrock Topography of the White Sea
This map was contributed by Aleksey Amantov http://www.geologicalmap.nm.ru/
The shaded relief map of the sub-Pleistocene surface exhibits the bedrock topography of the White Sea and surrounding area of this relatively new diamond-bearing province. It illustrates the mapped surface of the inset map in the lower right corner. Thickness of the Pleistocene overburden is up to 200 m. Surfer is used to automate creation of convergence maps of the platform margin, and final results are displayed in the MapViewer 4 to take advantage of the additional analytical features.