It can happen rapidly, as in the case of hot springs mineral deposition or evaporation of salt flats which create chemical sedimentary rocks, or quite slowly as in the gradual deposition of sediments by tidal waters in which case their formation may take millions of years.
It could take minutes or thousands of years, depending on the rate of cooling.
10,000,000+ years
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.
Many Years. Many Years.
It can take thousands to millions of years for sedimentary rock to form, depending on factors such as the type of sediment and the environmental conditions. The process involves the accumulation and compaction of sediment layers over time, leading to the eventual transformation into solid rock through lithification.
45 years
Magnetite can form relatively quickly in geological terms, usually within a few thousand years under the right conditions. The exact timeframe can vary depending on factors such as temperature, pressure, and availability of iron and oxygen.
The process of a rock changing into another form can take millions to billions of years, depending on the factors involved such as heat, pressure, and chemical reactions. This transformation is part of the rock cycle, where rocks can change from one type to another over geologic timescales.
1 million years
1 million+ Years to be a diamonds... :/
It would have taken 500,000 years for the sedimentary rock layer to form, as 2 meters is equivalent to 2,000 mm and dividing by the accumulation rate of 4 mm per year gives 500,000 years.
It takes a while for sedimentary rocks to form because it has to be broken into smaller pieces. It can be formed at the surface of the rock or the crust of the rock.