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Related: Editorials & Other Articles, Issue Forums, Alliance Forums, Region ForumsCreepy lake in Tanzania turns animals into stone
Well, into lime, I guess; it's calcium. Still, "Lake Medusa" or "Lake Basilisk" sounds cool. (It's actually called Lake Natron).
Creepy pictures at the link:
http://www.newscientist.com/article/mg21929360.100-deadly-lake-turns-animals-into-statues.html
ACCORDING to Dante, the Styx is not just a river but a vast, deathly swamp filling the entire fifth circle of hell. Perhaps the staff of New Scientist will see it when our time comes but, until then, Lake Natron in northern Tanzania does a pretty good job of illustrating Dante's vision.
Unless you are an alkaline tilapia (Alcolapia alcalica) an extremophile fish adapted to the harsh conditions it is not the best place to live. Temperatures in the lake can reach 60 °C, and its alkalinity is between pH 9 and pH 10.5.
The lake takes its name from natron, a naturally occurring compound made mainly of sodium carbonate, with a bit of baking soda (sodium bicarbonate) thrown in. Here, this has come from volcanic ash, accumulated from the Great Rift valley. Animals that become immersed in the water die and are calcified.
Photographer Nick Brandt, who has a long association with east Africa he directed the video for Michael Jackson's Earth Song there in 1995 took a detour from his usual work when he discovered perfectly preserved birds and bats on the shoreline. "I could not help but photograph them," he says. "No one knows for certain exactly how they die, but it appears that the extreme reflective nature of the lake's surface confuses them, and like birds crashing into plate glass windows, they crash into the lake."
Unless you are an alkaline tilapia (Alcolapia alcalica) an extremophile fish adapted to the harsh conditions it is not the best place to live. Temperatures in the lake can reach 60 °C, and its alkalinity is between pH 9 and pH 10.5.
The lake takes its name from natron, a naturally occurring compound made mainly of sodium carbonate, with a bit of baking soda (sodium bicarbonate) thrown in. Here, this has come from volcanic ash, accumulated from the Great Rift valley. Animals that become immersed in the water die and are calcified.
Photographer Nick Brandt, who has a long association with east Africa he directed the video for Michael Jackson's Earth Song there in 1995 took a detour from his usual work when he discovered perfectly preserved birds and bats on the shoreline. "I could not help but photograph them," he says. "No one knows for certain exactly how they die, but it appears that the extreme reflective nature of the lake's surface confuses them, and like birds crashing into plate glass windows, they crash into the lake."
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Creepy lake in Tanzania turns animals into stone (Original Post)
Recursion
Oct 2013
OP
muriel_volestrangler
(101,321 posts)1. Not sure if it is calcium, and so therefore lime
The article does say 'calcified' at one point; but the rest of it is all about sodium compounds - as is the name, 'Natron' (like the 'Na' of the symbol for sodium).
https://en.wikipedia.org/wiki/Lake_Natron
https://en.wikipedia.org/wiki/Natron
They may have just said "calcified" as a general "covered in minerals" term.
Recursion
(56,582 posts)2. Ah, that makes more sense
Thanks