Why are sedimentary rocks a storehouse of geological history?
Answers
Answer:
Explanation:
Sedimentary rocks are only a thin veneer over a crust consisting mainly of igneous and metamorphic rocks. Sedimentary rocks are deposited in layers as strata, forming a structure called bedding. ... Sedimentary rocks are also important sources of natural resources like coal, fossil fuels, drinking water or ores.
Answer:
Sedimentary rocks are called a storehouse of geological history as their formation has taken place due to depositing, accumulating and concentrating minerals in the form of beds or layers. The sequence in which these layers appear helps us understand the history of earth. Some common examples include "coal, iron, gypsum, potash salt and sodium salt". Coal and iron are formed due to heat and pressure for a long period of time whereas, the rest have been formed due to evaporation.