GENERAL GEOLOGY

Detailed explanation-1: -Relative age of rocks is defined as the geological age of a fossil organism, rock or event relative to other organisms, rocks, features, or events rather than in terms of years. Relative age is important for understanding Earth’s history.

Detailed explanation-2: -The relative age of a rock is its age compared to the ages of other rocks. The absolute age of a rock is the number of years since the rock formed. It can be difficult to determine the absolute age of a rock, particularly a sedimentary rock made of sediments from different source rocks.

Detailed explanation-3: -Relative age is the age of a rock layer (or the fossils it contains) compared to other layers. It can be determined by looking at the position of rock layers. Absolute age is the numeric age of a layer of rocks or fossils. Absolute age can be determined by using radiometric dating.

Detailed explanation-4: -The age of a rock can be calculated if we look at the ratio of uranium to lead. The older the rock, the lower the ratio of uranium to lead. Young rocks will have high uranium content and low lead content whereas very old rocks will have low uranium content and high lead content.

Detailed explanation-5: -Relative age refers to the approximate age of a specific rock layer. It is determined by comparing its position to other rock layers. The process used to establish whether a rock layer or a geologic event is older or younger than the other without knowing their specific ages is called relative dating.