Lava dating place

This increased oxygen created conditions that would not allow most of the existing life to survive and thus made way for the more oxygen-dependent life forms.By the end of the Proterozoic Period, Earth was well along in its evolutionary processes leading to our current period, the Holocene Period, or Anthropocene Period, also known as the Age of Man.

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The first fossils were a type of blue-green algae that could photosynthesize.Earth's atmosphere was first supplied by the gasses expelled from the massive volcanic eruptions of the Hadean Era.As Earth began to take solid form, it had no free oxygen in its atmosphere.It was so hot that the water droplets in its atmosphere could not settle to form surface water or ice.Clouds formed as the Earth began to cool, producing enormous volumes of rainwater that formed the oceans.

For the next 1.3 billion years (3.8 to 2.5 billion years ago), the Archean Period, first life began to appear and the world’s landmasses began to form.Pangea formed some 225 million years ago and would evolve into the seven continents we know today.Free oxygen began to build up around the middle of the Proterozoic Period — around 1.8 billion years ago — and made way for the emergence of life as we know it today.This caused it to undergo the fusion process and give off light, heat and other radiation.During this process, the remaining clouds of gas and dust that surrounded the sun began to form into smaller lumps called planetesimals, which eventually formed into the planets we know today.Earth’s initial life forms were bacteria, which could survive in the highly toxic atmosphere that existed during this time.