GEOLOGY
STRATIGRAPHY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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It is used for dating rocks.
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It is used to classify rock types.
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It is used to identify the formation processes of rocks.
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It is used to relate rocks to Earth’s geologic history.
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Detailed explanation-1: -Stratigraphy is they classification of different layers or layering of sedimentary deposits, and in sedimentary or layered volcanic rocks. This field is important to understanding the geological history and forms the basis for classification of rocks into distinct units that can be easily mapped.
Detailed explanation-2: -The geologic time scale is an important tool used to portray the history of the Earth-a standard timeline used to describe the age of rocks and fossils, and the events that formed them. It spans Earth’s entire history and is separated into four principle divisions.
Detailed explanation-3: -The fossil forms that occur in the rocks, however, provide the chief means of establishing a geologic time scale, with the timing of the emergence and disappearance of widespread species from the fossil record being used to delineate the beginnings and endings of ages, epochs, periods, and other intervals.
Detailed explanation-4: -Stratigraphy, also called chronostratigraphy is the ordering and analysis of the layers of the Earth (also called strata) based chronological dating techniques and the layers’ positions relative to each other. Geologic time begins approximately 4.6 billion years ago, shortly after when the Earth began to form.