| Issue |
E3S Web Conf.
Volume 98, 2019
16th International Symposium on Water-Rock Interaction (WRI-16) and 13th International Symposium on Applied Isotope Geochemistry (1st IAGC International Conference)
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|---|---|---|
| Article Number | 09007 | |
| Number of page(s) | 5 | |
| Section | Water-Rock Interaction Controlling Water Quality and Human Health Issues | |
| DOI | https://doi.org/10.1051/e3sconf/20199809007 | |
| Published online | 07 June 2019 | |
Hydrochemistry of pit lakes in the Portuguese sector of the Iberian Pyrite Belt
ICT, Institute of Earth Sciences, University of Minho, 4710-057 Braga, Portugal
* Corresponding author: teresav@dct.uminho.pt
The Iberian Pyrite Belt (IPB) is a world-class metallogenic province with volcanogenic massive sulphide ore deposits. Most ore exploitation occurred since pre-Roman time, creating extensive galleries, wells, waste-dumps and pit lakes. These last structures are a concern for their potential environmental impact because they accumulate large volumes of mine water affected acid mine drainage. The present work classifies the pit lakes based on the surface water hydrochemistry. Using the Ficklin diagram for classification, pit lake waters vary from acid, high-metal to high-acid, extreme-metal and exhibit similarities with other pit lakes from the Spanish sector of the IPB.
© The Authors, published by EDP Sciences, 2019
This is an open access article distributed under the terms of the Creative Commons Attribution License 4.0 (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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