Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5785661 | Journal of African Earth Sciences | 2017 | 43 Pages |
Abstract
This study investigated gold prospectivity in the Paleoproterozoic Häme Belt, located in southwestern Finland. The Häme Belt comprises calc-alkaline and tholeitic volcanic rocks, migmatites, granitoids, and mafic to ultramafic intrusions. Mineral exploration in the region has resulted in the discovery of several gold occurrences during recent decades; however, no prospectivity modeling for gold has yet been conducted. This study integrated till geochemical and geophysical data to examine and extract data characteristics critical for gold occurrences. Modeling was guided by self-organizing map (SOM) analysis to define essential data associations and to aid in model input data selection and generation. The final fuzzy logic prospectivity model map yielded high predictability values for most known Au or Cu-Au occurrences, but also highlighted new targets for exploration.
Related Topics
Physical Sciences and Engineering
Earth and Planetary Sciences
Geology
Authors
Hanna Leväniemi, Helena Hulkki, Markku Tiainen,