Tag: Geology
The formation of supermountains would have impacted the evolution of life on Earth
By tracking zircons with a low lutetium content, Australian researchers have succeeded in identifying the formation, during the history of the Earth, of two “supermountains” rising more than 8 km…
A gigantic meteorite impact would have shaken the Earth for several thousand years
A huge meteorite would have impacted the Earth more than 2 billion years ago. This cataclysmic event would have been followed by a long phase of rebalancing of the crust,…
The amount of oxygen on Earth would have long stagnated at very low levels
The amount of oxygen in the atmosphere would have long stagnated at particularly low levels, impacting the development of the biosphere. New results that could lead to a revision of…
Plate tectonics: for continents too, rupture can be difficult
Continental breakup is one of the fundamental processes of plate tectonics. While some continents seem to accept divorce quite easily, breaking up is much more difficult for others. You will…
For the continents too, the break can be difficult
Continental breakup is one of the fundamental processes of plate tectonics. While some continents seem to accept divorce quite easily, breaking up is much more difficult for others. You will…
What is the origin of methane hydrates?
In a context of global warming, the melting of methane hydrates is a major concern that could significantly impact the current evolution of the climate. Small presentation of these gas…
Satellites see in detail the uplift of the Alps
Deformation of the ground before an eruption, tectonic movements… Satellite imagery now makes it possible to observe in detail the way in which the surface of our planet is continuously…
Asteroids have been falling steadily on Earth and Mars for 600 million years
Counting the craters on the surface of a planet can provide precise information about its history. This is what researchers have done on Mars. They conclude that the frequency of…
Asteroids have been falling steadily on Earth and Mars for 600 million years
Counting the craters on the surface of a planet can provide precise information about its history. This is what researchers have done on Mars. They conclude that the frequency of…
The uprising of the Alps under the eye of satellites
Deformation of the ground before an eruption, tectonic movements… Satellite imagery now makes it possible to observe in detail the way in which the surface of our planet is continuously…