Which term defines the process of layers and layers of rock forming on large areas of the earth over time? stratification

According to some information I read,I found out that this process is called Stratum

Explanation:

one way archaeology us understand the past is through the material objects it finds, allowing us to know what was being used, and when. for example a dig recently found a flute, believed to be the oldest musical instrument found to date.

i hope this

answer; 55-85;