View History Of The Earth's Atmosphere Timeline Background
View History Of The Earth's Atmosphere Timeline Background. There were lots of volcanoes, many more than today, because earth's crust was still forming. Much of the co2 dissolved into the oceans.
Geological History Of Oxygen from www.biointeractive.org
Some of the early microorganisms evolved a way to use the energy from sunlight to make sugars out of simpler molecules. Oxygen has been in our atmosphere since the earth first formed. Earth's primordial atmosphere (hadean eon, 4.56 to 4.0 ga) when the material forming the earth coalesced and melted, it organized itself into layers with dense materials at the core and less dense compounds closer to the surface.
The atmospheres of the terrestrial planets are somewhat similar to earth's.
But even the earth's first continents were drawn together into supercontinents multiple times, researchers think. A perfect storm of conditions allowed photosynthetic plankton to release an event notable in the history of life on earth, called the cambrian explosion, occurred during this time. Ideas about how the atmosphere was produced and has changed have developed over time as new evidence has been discovered. The earth formed approximately 4.6 billion years ago.
