Start Methane dating

Methane dating

At Lake Nyos, once these bubbles started to form they wanted to rise to the top, this brought up more carbon dioxide-rich water which then also started to develop bubbles, and pretty soon there was a big rush of carbon dioxide bubbles to the surface.

I have little doubt there will be another methane-driven eruption — though not on the same scale as 251 million years ago — unless humans intervene.” What the world looked like 250 million years ago.

As deep water becomes gas-charged, a sudden release is possible: the resulting dense bubble then hugs the ground and drifts until in the case of methane, a spark triggers the kind of huge explosions that might have global and not just local effects–all from the depths of a soda lake like Lake Nyos.

Ryskin speculates on what happened next, when “terrestrial extinctions are caused by explosions and conflagrations that follow the massive release of methane (the air-methane mixture is explosive at methane concentrations between 5% and 15%) and by the eruption-triggered floods.

With such a long-lasting sulfur smog, temperatures would have remained cool worldwide and photosynthesis would have been suspended for several lifetimes.

Both methane (CH) are greenhouse gases, so temperatures – which had experienced a period of cooling because of the sulfur – would have immediately started to rise.

The eruption brings to the surface deep anoxic waters that cause extinctions in the marine realm.” In 1986, the Lake Nyos explosion killed more than 1700 people and livestock up to 25 km away.

Carbon dioxide gas was released directly into the deepest waters of the lake, where it could remain in solution (the way that carbon dioxide stays in solution in an unopened carbonated soda).

Scientists have not been able to determine what caused this cataclysm to life, although theories of asteroid impacts, climatic changes, and the greenhouse effect have all been suggested.