Wow, those images are really striking. I can't help but think that this would be a cool thing to study, especially in say, a high school or something. I know that high school me would have been excited to learn what's going on with this lake and its preservative properties from both a chemical and biological perspective.
Whoa. Definitely a ton of high school chemistry lessons here. Reminds me of a research paper I was required to write at Michigan State for a Geophysics course. I got to choose a geological anomaly to study in the years BG (before Google). Another African Lake, Lake Nyos in Cameroon belched forth a cloud of CO2 gas in 1986. The lake sits in a volcanically active region. The heavier than air gas flowed down the hillside into nearby communities and asphyxiated 1,700 people and 3000 or so cattle. Dangerous lakes. Makes me very happy to live in the Great Lakes Region of the U.S..