Question

Modern depositional rates of carbonate sediment in the Caribbean Sea are 1.55cm/1,000yrs. Given this rate, how long would it take to deposit a 100 m thick layer of limestone?

Answer 1

Answer:

In order to deposit 100 meters of limestone layer, it will take 6,451,600 years

Explanation:

Given that,

The rate of deposition carbonate sediments is 1.55 cm in 1,000 years

⇒ 1.55 cm = 1,000 years

⇒ 1 cm = $\frac{1000}{1.55}$

⇒ 1 cm = 645.16 years

∵ 1 m = 100 cm

∴ 100 m = 100 × 100 cm

⇒ 100 m = 10,000 cm

So, the time it will take for carbonate to deposit 100 m thick layer of limestone will be-

⇒ 10,000 cm (100 meter) =  645.16 × 10,000 years

⇒ 100 meters = 6,451,600 years