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Nickel and Iron
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∙ 11y ago
Anonymous
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One reason fossils are rarely found in Precambrian rocks is that?
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.
What do scientist use to study Precambrian time?
Ore from eroded and deformed rocks
Why is it difficult to interpret the rock record of precambrian time?
It's rocks are severely bent and folded.
How do you compare rocks with other rocks?
By using their physical characteristics
Could carbon 14 be used for dating rocks from the precambrian time?
NO. 1) Carbon is not a common component of rocks. 2) C14's half life is too short.
When were precambrian rocks formed?
During the precambrian.
One reason fossils are rarely found in Precambrian rocks is that?
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.
Why is the shield also referred to as the Precambrian Shield?
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.
Why is the Canadian Shield also referred as the Precambrian Shield?
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.
Why is the Canadian Shield also referred to as the Precambrian Shield?
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.
Are precambrian rocks common?
No. Precambrian rocks are exceptionally rare. That period ended 570 million years ago, and the oldest rocks on the surface of the Earth are in the Laurentian Range, which runs from Southern Quebec down into Texas and Mexico.
What is a Precambrian's shield?
How are mafic and felsic igneous rocks different
Example of summary?
Precambrian rocks have been so deeply buried that they have changed by heat and pressure. That's a summary about the Precambrian time.
The Precambrian rocks of South Africa are a famous mining area for?
gold
Where does much of your history of Precambrian rocks come from?
Ores mined from shields...
Where can igneous rocks be found in Colorado?
Igneous rocks can be found in the mountains, which are partially composed of Precambrian plutonic rock.
What would you see during the Precambrian era?
just rocks and blobs of jelly
