Discuss in detail litho-, bio- and chrono-stratigraphic classifications

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Lithostratigraphic, biostratigraphic, and chronostratigraphic classifications are methods used to organize and interpret the rock and fossil records, and to understand the geologic history of the Earth.

Lithostratigraphic classification is based on rock type, mineral content, and other physical and chemical characteristics. This method is used to define and distinguish rock formations, and to assign them to specific stratigraphic units. Lithostratigraphic units are typically named after the geographic location where they were first described, and are usually assigned to a specific rock type such as sandstone, shale, or limestone. The rock formations that make up a lithostratigraphic unit are usually similar in age, composition, and depositional environment, and can be traced over large distances.

Biostratigraphic classification is based on the fossil content of rocks. This method is used to determine the relative age of rock formations, and to understand the evolution and distribution of life on Earth. Biostratigraphic units are typically defined based on the presence or absence of certain key fossil species, and can be used to correlate rock formations across large distances. Biostratigraphic data is particularly useful for determining the age of rocks that are not easily dated using other methods, and for understanding the __________ ___ _________ ___ ______ ___________ _________.
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Degree : BACHELOR DEGREE PROGRAMMES
Course Name : Bachelor of Science
Course Code : BSCG
Subject Name : Stratigraphy and Palaeontology
Subject Code : BGYCT 137
Year : 2023