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Which is the oldest unit? __________ Which unit is the youngest? __________ What type of unconformity is present? __________ What units is the unconformity between? _______________

Which is the oldest unit? __________ Which unit is the youngest? __________ What type of unconformity is present? __________ What units is the unconformity between? _______________

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
Problem 1LR
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Use the following block diagram to answer the following questions.

  1. Which is the oldest unit? __________
  2. Which unit is the youngest? __________
  3. What type of unconformity is present? __________
  4. What units is the unconformity between? _______________
The image depicts a cross-sectional view of geological layers beneath the Earth's surface. The layers are labeled A through E, each representing different types of rock or sediment. Additionally, a feature labeled D is shown cutting through some of these layers. - **Layer A**: This is the topmost layer, characterized by light-colored sediment which suggests it is a layer of soil or loose sediment. - **Layer B**: Positioned below layer A, this layer consists of a medium-grained sediment, which may represent sandstone or a similar sedimentary rock. - **Layer C**: This layer has a darker coloration and a finer grain, potentially indicating a shale or similar rock type. - **Layer D**: This feature appears as an intrusion, cutting through layers A, B, and C, suggesting it is likely an igneous intrusion such as a dike or sill. The texture indicates crystalline structures often found in cooled magma. - **Layer E**: The bottommost layer is a reddish, relatively homogeneous layer, suggesting a different type of sedimentary rock, such as sandstone or limestone altered by heat. The diagram provides a simplified representation often used in educational contexts to explain geological processes like sedimentation and intrusion.
Transcribed Image Text:The image depicts a cross-sectional view of geological layers beneath the Earth's surface. The layers are labeled A through E, each representing different types of rock or sediment. Additionally, a feature labeled D is shown cutting through some of these layers. - **Layer A**: This is the topmost layer, characterized by light-colored sediment which suggests it is a layer of soil or loose sediment. - **Layer B**: Positioned below layer A, this layer consists of a medium-grained sediment, which may represent sandstone or a similar sedimentary rock. - **Layer C**: This layer has a darker coloration and a finer grain, potentially indicating a shale or similar rock type. - **Layer D**: This feature appears as an intrusion, cutting through layers A, B, and C, suggesting it is likely an igneous intrusion such as a dike or sill. The texture indicates crystalline structures often found in cooled magma. - **Layer E**: The bottommost layer is a reddish, relatively homogeneous layer, suggesting a different type of sedimentary rock, such as sandstone or limestone altered by heat. The diagram provides a simplified representation often used in educational contexts to explain geological processes like sedimentation and intrusion.
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