Talk:Brumadinho dam disaster
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BBC News online articleEdit
Impact on life before economic?Edit
Passing through but wanted to ask - is it possible that (in the aftermath section) we could talk about the loss of life before the economic impacts? This might be a matter of personal taste but it seems a little cold... Joe (talk) 19:46, 29 January 2019 (UTC)
Why is the river pink in the image. It is strange. may be the body should clarify the colour and its cause. --DBigXrayᗙ 19:57, 29 January 2019 (UTC)
The BBC video shows normal brown colour. Perhaps the image from the screen grab needs to be corrected for White Balance to make it less pink. --DBigXrayᗙ 20:02, 29 January 2019 (UTC)
- It's not exactly strange. If you look in the article, the dam was actually a tailings dam. Many tailings dams have odd and bright colors because of the high levels of dissolved minerals in them (such as iron, copper,etc). From what I see, this dam disaster was for an iron ore mine, which would explain its pinkish hue. Sir Trenzalore (talk) 20:50, 29 January 2019 (UTC)
- What a moronic observation. It clearly is just mud. Bageense (talk) 21:22, 29 January 2019 (UTC)
- You realize how mining operations like this work, right? Ore is mined out of the ground and pulverized into fine particles. These particles are then chemically treated - such as with cyanide or sulphuric/nitric acids - to leach out minerals of interest. This forms a kind of slurry. This slurry is processed to remove the majority of these minerals, leaving the tailings, a suspension of powderized rock and water, or as you oh so aptly put it, mud. These tailings have compounds leftover from the leaching process that can be highly colorful. Here are a few examples: copper sulfate, iron (II) sulfate, nickel nitrate, etc. In this case, the tailings were stored in a dam that failed. Sir Trenzalore (talk) 22:38, 29 January 2019 (UTC)
- Sir Trenzalore thanks for the kind reply. I agree the colour is likely due to the minerals. --DBigXrayᗙ 21:47, 29 January 2019 (UTC)