It may look like this bird was gripped by the icy hand of death, but scientists will explain that it was actually calcified in the caustic waters of Tanzania’s Lake Natron. Photographer Nick Brandt’s eerie black and white photos allow both interpretations. ”I unexpectedly found the creatures — all manner of birds and bats — washed up along the shoreline of Lake Natron in Northern Tanzania. 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. ”The water has an extremely high soda and salt content, so high that it would strip the ink off my Kodak film boxes within a few seconds. The soda and salt causes the creatures to calcify, perfectly preserved, as they dry,” Brandt writes in his new photo/essay book, Across The Ravaged Land. To give these obviously lifeless creatures an air of reanimation, Brandt picked them up off the shoreline and perched them in pre-death poses.
Lake Natron is a salt lake located in northern Tanzania, close to the Kenyan border, in the eastern branch of the East African Rift. The lake is fed by the Southern Ewaso Ng’iro River and also by mineral-rich hot springs. It is quite shallow, less than three metres (9.8 ft) deep, and varies in width depending on its water level, which changes due to high levels of evaporation, leaving behind a mixture of salts and minerals called natron(泡碱, 蘇打) . The surrounding country is dry and receives irregular seasonal rainfall. The lake falls within the Lake Natron Basin Wetlands of International Importance Ramsar Site. Temperatures in the lake can reach 60 °C (140 °F), and depending on rainfall, the alkalinity can reach a pH of 9 to 10.5 (almost as alkaline as ammonia).
After read the above news on the web, the first thought on my mind is, has any human being turned to stone when they were swimming in this lake?
Therefore, I searched for the answer:
Contrary to Popular Belief, Lake Natron Does Not Instantly Turn Birds To Stone
No one is disputing that Natron is a dangerous place for most species, of course. As the New Scientist says, the lake can reach temperatures up to 60 °C and has an alkalinity between pH 9 and pH 10.5, making it pretty dang gross on the best of days — it can even burn the skin and eyes of animals who aren’t adapted to it. It also does preserve many of these animals’ bodies, specifically due to the combination of chemicals that are deposited into the water via runoff from a nearby Great Rift Valley volcano, Ol Doinyo Lengai.
Therefore, I am sure people would not love to swimming in 60 °C lake. and the calcifying, and the preservation process :
the preservation process is not something that happens instantaneously — it happens over a much longer period of time. So, the birds are not “stone,” preserve. The chemical process to which they were subjected is much closer to Egyptian mummifcation than anything else, and although the bodies appear chalky and stone-like in appearance, but they are not completely immovable. After all, if that were the case then Brandt would not have been able to reposition his birds into such surreal and breathtaking poses.
Furthermore, there are species that are perfectly capable of living near lake Natron without facing inevitable doom — specifically, there are extremophile fish, bacterium, and a specific type of algae that thrives in the alkaline-rich waters. The lake is also one of the largest breeding ground for North Africa’s lesser flamingos (not to be confused with the greater flamingo, which has a different bill and is just a bit larger– you know, “greater”), who come to the lake to feed on the aforementioned algae. Yes, the occasional flamingo dies and is preserved, but as you can see from the featured image above, there are plenty more that come out just fine.
In : 10 deadiest Lakes on Earth :-
I found lakes which are temperatures can reach 60 °C, rich of minerals, salts and deadly :
1. Lake Rakshastal, Tibet
Lake Rakshastal in Tibet is the body of water on the left in this picture, and unlike its sister, Lake Manasarovar, is a saltwater lake. No plants or fish survive in this water and the locals consider it poisonous. In fact, the myth is that it is the home of the 10-headed demon king, Lanka! In Buddhism, Lake Manasarovar is shaped like the sun and represents brightness, while Lake Rakshastal, shaped like a crescent, represents darkness. It certainly has brought darkness to anything that tried to live in it – the final darkness of death.
2. Lake Mono, USA
Mono Lake (/ˈmoʊnoʊ/ moh-noh) is a large, shallow saline soda lake in Mono County, California, formed at least 760,000 years ago as a terminal lake in a basin that has no outlet to the ocean. The lack of an outlet causes high levels of salts to accumulate in the lake. These salts also make the lake water alkaline.
Mono Lake is know for its tufa tower rock formation alongside its shores. It supports a unique productive ecosystem.There is no fish in the lake. Its warm ancient saline water inhabit trillions of brine shrimp and alkali flies. Although they’ve no value for humans, they’re the food source for millions of migratory birds that visit the lake each year. Freshwater streams feed this lake, supporting lush riparian forests of cottonwood and willow along their banks.
3. Boiling Lake, Dominica ( the second largest hot lake in the world)
Boiling lake in Dominica is filled with bubbling superheated water that is enveloped in a vapor cloud. It is between 180 and 197 degrees Fahrenheit (82 to 91.5 Celsius) on the edges alone and will kill you in minutes. It is actually a flooded fumarole, a crack through which gases from molten lava below escape. The basin collects rainwater, and there are two streams which also empty into the lake, as well as groundwater seeping up through the hot rocks. For visitors, a slip here is really going to be a fall to one’s death.
actually, we have the world largest boiling lake in New Zealand call Frying Pan Lake: Although the average temperature of the lake is around 50°C the hottest areas are almost boiling. As a result steam and various noxious gases are constantly released from Frying Pan Lake.
to be continued with………….” Killer lake Nyons, Lake Kivu, Lake Monoun,…..