Metal anomalies in till in the Sarvlaxviken area, Lovisa, southern Finland

Geochemical investigations of till is a widely used method in metal exploration as the commonly inherits geochemical signature (including contents) parent bedrock. In this investigation, over 2000 samples were collected Sarvlaxviken area, southern Finland, where several polymetallic (Cu, Zn, Pb, As, Sn, W and In) veins recently have been discovered Proterozoic crust along border between Late Svecofennian granites Wiborg Batholith. The bedrock covered by compact poorly sorted basal till, formed during Weichselian glaciation event. Several glacial-transported boulders, with high contents Cu, Mo Bi derived from local bedrock, also on top provide evidence for concealed mineralisation under cover. frequent distribution area provides excellent conditions search such hidden means systematic sampling, even if large farm field areas, composed clay-rich sediments, seawater-covered areas (Sarvlaxviken bay), had to be avoided sampling program. university courses training programs led authors analysed cost-efficient certified laboratory. Obtained data statistically processed using K-means clustering algorithms which can treat sets data. results provided anomalies that mainly occur thickness <1 m are considered source. strong numerous undiscovered beneath