Ground geochemistry, regional sampling (display service)

The viewing service Markgeokemi, regional sampling shows sampling sites and analytical results for a selection of elements in the regional soil geochemical survey on the Geological Survey of Sweden (SGU). The sampling points are shown by the analytical methods used on the samples: Total content XRF, Nitric acid leaching ICP-MS, King water leaching ICP-MS, King water leaching ICP-AES and King water leaching AAS. Total XRF. Several analytical methods may have been used at the same test site.

Geochemical mapping at SGU is conducted in order to show the natural occurrence of major substances and trace elements as well as pH in soil and water. In the regional soil geochemical mapping, the fine fraction (<0.063 mm) of moraine is sampled and analysed with a sample density of approximately 1 sample per 6 to 7 km2.

The NSG-SGAB database is an archived compilation of geochemical mapping of moraine conducted by the National Board for Mining Property (NSG) in 1987-1991. Analysis results were compiled by Geological Survey of Sweden (SGAB) together with data from Terra Mining Co., STC Minerals and the Geological Survey of Sweden. Moraine samples were analysed after king water leaching using ICP-AES and AAS methods.

The number of elements available varies in each year's sampling series, which is due to technological developments.