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Geologists have divided the whole of history into units of increasing magnitude. This is called the geologic time scale. The entire time scale was originally based on relative dating, since radiometric dating was not available at the time. Absolute dating techniques determine a numerical age of strata given in number of years. Relative dating techniques, on the other hand, determine the age of a stratum relative to other strata e, if it is younger or older), without providing any numerical data. Geologists have been able to determine the relative ages of rocks and any fossils they contain to reconstruct a history that reveals the evolution of Earth's continents and living organisms using four principles of stratigraphy • Principle of Superposition Younger strata are deposited on top of older strata • Principle of Original Horizontality: Strata are deposited horizontally. Tited strata had been sited by some geologic event after the time of deposition. . Principle of Lateral Continuity Layers of sediment initially extend laterally in all directions. As a result, rocks that are otherwise similar, but are now separated by a valley or other erosional feature, can be assumed to be originally continuous • Principle of Cross-Cutting Relationships: Magma intrudes and crystallizes (forming features such as faults and dikes). These features Part A- Principles of Stratigraphy The figure below shows a series of rock layers and a volcanic dike. Rock A is the oldest rook in the sequence. Use the principles of stratigraphy to rank items A-F Rank the strata from oldest to youngest View Available Hint(s) Oldest ABOOOO younger than the strate they cut through because the strata they cut through must have been there before the intrusion of magma Youngest G D I H

Geologists have divided the whole of history into units of increasing magnitude. This is called the geologic time scale. The entire time scale was originally based on relative dating, since radiometric dating was not available at the time. Absolute dating techniques determine a numerical age of strata given in number of years. Relative dating techniques, on the other hand, determine the age of a stratum relative to other strata e, if it is younger or older), without providing any numerical data. Geologists have been able to determine the relative ages of rocks and any fossils they contain to reconstruct a history that reveals the evolution of Earth's continents and living organisms using four principles of stratigraphy • Principle of Superposition Younger strata are deposited on top of older strata • Principle of Original Horizontality: Strata are deposited horizontally. Tited strata had been sited by some geologic event after the time of deposition. . Principle of Lateral Continuity Layers of sediment initially extend laterally in all directions. As a result, rocks that are otherwise similar, but are now separated by a valley or other erosional feature, can be assumed to be originally continuous • Principle of Cross-Cutting Relationships: Magma intrudes and crystallizes (forming features such as faults and dikes). These features Part A- Principles of Stratigraphy The figure below shows a series of rock layers and a volcanic dike. Rock A is the oldest rook in the sequence. Use the principles of stratigraphy to rank items A-F Rank the strata from oldest to youngest View Available Hint(s) Oldest ABOOOO younger than the strate they cut through because the strata they cut through must have been there before the intrusion of magma Youngest G D I H

Applications and Investigations in Earth Science (9th Edition)
Applications and Investigations in Earth Science (9th Edition)
9th Edition
ISBN:9780134746241
Author:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Publisher:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Chapter1: The Study Of Minerals
Section: Chapter Questions
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Geologists have divided the whole of history into units of increasing magnitude. This is called the geologic time scale. The entire time scale was originally based on relative dating, since radiometric dating was not available at the time. Absolute dating techniques determine a numerical age of strata given in number of years. Relative dating techniques, on the other hand, determine the age of a stratum relative to other strata (i.e., if it is younger or older), without providing any numerical data. Geologists have been able to determine the relative ages of rocks and any fossils they contain to reconstruct a history that reveals the evolution of Earth's continents and living organisms using four principles of stratigraphy: • Principle of Superposition: Younger strata are deposited on top of older strata. Principle of Original Horizontality: Strata are deposited horizontally. Tilted strata had been tilted by some geologic event after the time of deposition. • Principle of Lateral Continuity: Layers of sediment initially extend laterally in all directions. As a result, rocks that are otherwise similar, but are now separated by a valley or other erosional feature, can be assumed to be originally continuous. • Principle of Cross-Cutting Relationships: Magma intrudes and crystallizes (forming features such as faults and dikes). These features are younger than the strata they cut through because the strata they cut through must have been there before the intrusion of magma. Part A - Principles of Stratigraphy The figure below shows a series of rock layers and a volcanic dike. Rock A is the oldest rock in the sequence. Use the principles of stratigraphy to rank items A-F. Rank the strata from oldest to youngest. ▸ View Available Hint(s) Oldest Submit ABDC Reset Help Youngest B G D F H
Transcribed Image Text:Geologists have divided the whole of history into units of increasing magnitude. This is called the geologic time scale. The entire time scale was originally based on relative dating, since radiometric dating was not available at the time. Absolute dating techniques determine a numerical age of strata given in number of years. Relative dating techniques, on the other hand, determine the age of a stratum relative to other strata (i.e., if it is younger or older), without providing any numerical data. Geologists have been able to determine the relative ages of rocks and any fossils they contain to reconstruct a history that reveals the evolution of Earth's continents and living organisms using four principles of stratigraphy: • Principle of Superposition: Younger strata are deposited on top of older strata. Principle of Original Horizontality: Strata are deposited horizontally. Tilted strata had been tilted by some geologic event after the time of deposition. • Principle of Lateral Continuity: Layers of sediment initially extend laterally in all directions. As a result, rocks that are otherwise similar, but are now separated by a valley or other erosional feature, can be assumed to be originally continuous. • Principle of Cross-Cutting Relationships: Magma intrudes and crystallizes (forming features such as faults and dikes). These features are younger than the strata they cut through because the strata they cut through must have been there before the intrusion of magma. Part A - Principles of Stratigraphy The figure below shows a series of rock layers and a volcanic dike. Rock A is the oldest rock in the sequence. Use the principles of stratigraphy to rank items A-F. Rank the strata from oldest to youngest. ▸ View Available Hint(s) Oldest Submit ABDC Reset Help Youngest B G D F H
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