MARS MIGHT HAVE HAD EXPLOSIVE VOLCANOES, SCIENTISTS SAY
The US space agency Nasa hasrecently discovered an unexpected silica mineral on Mars. The mineral might change our comprehension of how the planet evolved.
Nasa has landed onMars in August 2012. Their science laboratory rover is called Curiosity and they have been exploring rocks within Gale Crater since then.
The reason the detection of the stone was a huge surprise for the scientists was because tridymite is usually associated with silicic volcanism. Because, tridymite is a mineral that requires high temperatures and high silica concentrations to form. Such condition is present only in the case of volcanism. Even though volcanism is known on Earth, scientist didn’t expect such mineral on Mars and thus had not given much importance to it till the discovery. There are volcanoes known to be having tridymite on earth, such as Mount St. Helens in Washington and the Satsuma-Iwojima in Japan.
The completely unexpected discovery of tridymite on Mars is now a new force for scientists to reconsider the volcanic history of the planet. It suggests that Mars must have had explosive volcanoes once.