SOIL GEOCHEMISTRY AND POTENTIAL EVALUATION IN THE SOUTH EXTENSION OF JIAOJIA GOLD BELT, EASTERN SHANDONG

Taking the south extension part of Jiaojia gold belt in eastern Shandong Peninsula as the research object, on the basis of test data of 1:50 000 soil geochemical survey, the paper analyzes the element eigenvalues with diagrams, and infers that there is an enrichment tendency for Au in the area. Factor analysis is adopted for data processing, with F4 factor combination(Hg-Au-Pb) as a major indicator to identify structural alteration zone and mineralization clues. Comprehensive geological and geochemical profiles and plan maps are drawn for verification of key areas. Combined with the actual geological conditions by field observation, two structural alteration zones are recognized to be favorable prospecting direction, and two metallogenic prospects are delineated, which provides basis for the next geological study and prospecting in the area.