Material
The material world is the basic foundation of the visual composition of our evolution. This material world was slowly developed over many million years in parallel to the connectivity of energy with the universe. The stages of material form changed over billions of years until the human form was created 200000 years ago.
During this evolution, the material and energy of the universe have taken many forms; visual form and nonvisual forms which are beyond the reach of human perception and sense.
Rocks and transition
The field of geology that studies and dates rock layers are called Stratigraphy. Stratigraphy studies the age of a lot of geological processes and has enabled them to put together a geological time scale for our Earth.
Rocks formation and records give a vast amount of information. They record their own formation and growth over millions of years, keeping evidence of life and planet activity within.
The early years of the Precambrian saw the formation of the Moon and a molten Earth slowly cooling down.
Water vapor in the atmosphere from asteroid and comet impacts started to condense and rain down on the planet as liquid water.
Then, approximately 100 million years after the Earth formed, the temperatures had become stable enough for a crust to form and survive.
The atmosphere was heavy and toxic, with almost no oxygen but with large amounts of carbon dioxide, nitrogen, and sulfur due to volcanic activity.
Within another half a million years, multiple tiny landmasses had been born. These went on to become the center of forming present-day continents.
The oldest known rocks on Earth are from this period, now in Australia, dating back to 4.4 billion years ago.
Banded Rock formation
The layers of rock from the ocean showing pulses of iron oxide deposits due to reaction with oxygen – dating back to 3.7 billion years ago exist today.
These show evidence that large quantities of oxygen were pumped into the water at intervals; a phenomenon that is explicable only as a biological process.
More biochemical rocks, called stromatolites, that were formed due to microorganisms trapping sand grains to build colonies, date to 3.5 billion years ago.
The Great Oxygenation
The Great Oxygenation Event occurred 2.3 billion years ago.
The evidence of photosynthesis dates to 2.4 billion years ago. In this stage cyanobacteria flourished, infusing massive quantities of oxygen into the air.
In this process, two billion years after the earth formed, there was a constant supply of oxygen in the air for the first time.
The First Extinction & The First Ice Stage
The rise in levels of this new in Earth’s ecosystem led to two major events on Earth: the first extinction event and the first ice age.
An Extinction Event, more commonly known as mass extinction, is the extinction of a large number of species within a short period of geological time.
There have been 24 extinction events in all of Earth’s history – before humans came around 200,000 years ago.
