The history of the lake toba
Estimated the Toba Lake happened during the explosion around 73,000-75,000 last year and was the eruption supervolcano (the volcano super) that was newest. Bill Rose and Craig Chesner from Michigan Technological University estimated that volcanic materials that were spewed out the mountain totalling 2,800 km³, with 800 km³ the rock ignimbrit and 2,000 km³ volcanic ash that was estimated was blown the wind to the west for 2 weeks. Volcanic dust that was blown the wind spread to half earths, from China as far as South Africa. His eruption happened for 1 week and his dust throw reached 10 km above sea level.
This incident caused the mass death and to several species also was followed by the extinction. According to some DNA proof, this eruption also menyusutkan the amount of humankind until approximately 60% from the number of populations of earth humankind at that time, that is approximately 60 million humans. The same eruption took part in causing the occurrence of the ice time, although the experts were still debating him.
After this eruption, was formed the caldera that afterwards was filled by water and to that now is known as the Toba Lake. The pressure above by magma that did not yet go out caused the Samosir Island emergence.
