But there are. The Earth is about 4,600 million years old, the oldest known rocks are to be found in northern Quebec, Canada and are dated at about 4,280 million years.
They were only found 2 years ago so perhaps even older rocks could be found.
All rocks were molten in that time period.
Precambrian rocks contain relatively fewer fossils than rocks from different eras. This may be due to the fact that the rocks from this era were subject to a lot of heat and pressure, or were exposed to erosion.
Most rocks from that era are deeply buried.
The Archean era is the earliest Precambrian era, archean means "ancient" or "beginning". The Archean era starts with the oldest known rocks, about 4.6 billion years ago.
Yes. The first era was the precambrian era followed by the paleozoic era then the mesozoic era than the Cenozoic era.
Precambrian
Because it was created in the precambrian era...The Candadian Shield was formed in the Precambrian Era.The rocks of the Canadian Shield formed during the Precambrian time.
just rocks and blobs of jelly
carbon dioxide
Precambrian rocks contain relatively fewer fossils than rocks from different eras. This may be due to the fact that the rocks from this era were subject to a lot of heat and pressure, or were exposed to erosion.
Because it was created in the precambrian era...The Candadian Shield was formed in the Precambrian Era.The rocks of the Canadian Shield formed during the Precambrian time.
Because it was created in the precambrian era...The Candadian Shield was formed in the Precambrian Era.The rocks of the Canadian Shield formed during the Precambrian time.
Most rocks from that era are deeply buried.
Carbon dioxide
Most rocks from that era are deeply buried.
Carbon Dioxcide
The Precambrian era is the longest geological era, spanning from about 4.6 billion years ago to 541 million years ago, but it is also the era with the least amount of detailed information available due to the lack of well-preserved rocks and fossils from that time period.
The Archean era is the earliest Precambrian era, archean means "ancient" or "beginning". The Archean era starts with the oldest known rocks, about 4.6 billion years ago.