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Q: How many years ago did the first rock form?
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Related questions

How many years does it take for magnetite to form?

Magnetite is an extremely rare metal (rock) and can take 459,000 to 23,000,000 years to form.


Does the rock cycle have a starting point and ending point?

Only in that igneous rock was the first to form on Earth, over 4 billion years ago.


How can sedimentary rock form another rock?

Sedimentary rock can form another rock by being tossed and thrown into the water it takes about maybe 10 years for Sedimentary rock to form another rock.


How long does it take to form a rock?

It varies with the type of rock being formed. Some igneous rock is formed in a matter of minutes; some sedimentary rock is formed in processes requiring many millions of years.


What rock takes thousands of years to form?

A sedimentary rock takes thousands to million of years to form because it is formed from lava (or magma). After thousands and millions of years, allowing the rock to cool, forms a rock shape, which we call a sedimentary rock. Please don't copy and paste this answer to present it as your own. Your Welcome!


How many hours does it take to form igneous rock?

It could take minutes or thousands of years, depending on the rate of cooling.


How long does it take for a Igneous rock to Form?

10,000,000+ years


Does it take millions of years for sedimentary rock to form'?

yes it takes million of years for sedimentary rocks to form


A sedimentary rock is 2 m thick. How many years did it take for this layer to form if an average of 4 mm of sediment accumulated per year?

500 years


How long does it take for a rock to change to another form?

millions of years


How are the rocks converted to the soil?

soil is nothing but the smallest form of rocks i.e stones... rock was crushed into soil for many of years by the nature...


How is a rock made?

A rock takes millions of years to form. It is formed underneath the earths crust, where there is immense pressure and heat that compacts minerals to form rocks.