Modeling of floodable areas in a mining sector of the Arrayan Basin - Coquimbo Region - Chile.
The Arrayan basin is in the Coquimbo region of northern Chile. It is an area of intense mining activity for copper and gold extraction, and for the numerous tailings dams installed in the urban area west of the basin. There are 108 tailings dams in the western sector of the basin, most of them aband...
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| Autores principales: | , , |
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| Formato: | Artículo revista |
| Lenguaje: | Español |
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CURIHAM: Centro Universitario Rosario de Investigaciones Hidroambientales Facultad de Ciencias Exactas, Ingeniería y Agrimensura. Universidad Nacional de Rosario Director: Dr. Ing. Hernán Stenta Riobamba 245 bis, 2000 Rosario (Santa Fe), Argentina. Telefa
2021
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| Acceso en línea: | https://cuadernosdelcuriham.unr.edu.ar/index.php/CURIHAM/article/view/170 |
| Aporte de: |
| Sumario: | The Arrayan basin is in the Coquimbo region of northern Chile. It is an area of intense mining activity for copper and gold extraction, and for the numerous tailings dams installed in the urban area west of the basin. There are 108 tailings dams in the western sector of the basin, most of them abandoned or inactive. The western sector of the basin is an area susceptible to flooding, with floods occurring in 1997, 2015, 2017 and 2020. The semi-arid climate with rainfall concentrated in a few days, combined with mountain depression sectors, such as the undulating plain to the west of the basin, are factors that contribute to the susceptibility to flooding in the study area. Water dynamics in areas with a concentration of abandoned tailings dams may represent a potential aggravation of the risk, considering the entrainment of heavy metals and water and soil contamination. As a result, through mathematical modeling in GIS, it was identified that 63% of the abandoned tailings dams are in flood zones and close to populated areas. |
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