Revalorization of Haveri Au-Cu mine tailings (SW Finland) for potential reprocessing
Author
dc.contributor.author
Parviainen, Annika
Author
dc.contributor.author
Soto Fernández, Fabián
Author
dc.contributor.author
Caraballo Monge, Manuel
Admission date
dc.date.accessioned
2021-03-02T21:50:41Z
Available date
dc.date.available
2021-03-02T21:50:41Z
Publication date
dc.date.issued
2020
Cita de ítem
dc.identifier.citation
Journal of Geochemical Exploration Volume 218, November 2020, 106614
es_ES
Identifier
dc.identifier.other
10.1016/j.gexplo.2020.106614
Identifier
dc.identifier.uri
https://repositorio.uchile.cl/handle/2250/178531
Abstract
dc.description.abstract
The aim of this work was to make an estimate of the remaining metal resources of the Haveri tailings (SW Finland) that were deposited for 60 years ago. We used existing databases (Cu, Zn, Ni, Co, As, Pb, Ag, Au, Fe, S) of previous valorization performed in the 1980's with high sample density; a total of 1201 tailings samples from 165 drill cores. Cobalt, Cu, and Au were chosen for further statistical evaluation, 3D block modelling, and feasibility analysis. We performed also a volume estimate of the tailings based on the depth of drill cores, which was used for the calculation of the total resources. The grade and total tonnage of remaining Au resources present economic potential in comparison to current Au production, whereas the remaining resources for Co and Cu are less promising for reprocessing. However, further feasibility studies are required. This work may serve as an example to make use of existing databases by means of geostatistical modelling techniques in combination with more profound understanding of the mineralogical associations of the metals.
es_ES
Patrocinador
dc.description.sponsorship
European Union Life Environment program
LIFE04ENV/FI/000300
National Research and Development Agency of Chile (ANID)
AFB180004
UNESCO International Geoscience Programme
IGCP682
Codelco
16PTECME-66524