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For "G" what type of general rock is it? - Sedimentary, igneous, metamorphic? - Specific rock name?

For "G" what type of general rock is it? - Sedimentary, igneous, metamorphic? - Specific rock name?

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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For "G" what type of general rock is it? - Sedimentary, igneous, metamorphic?

- Specific rock name? 

## Cross-Section Diagram Analysis of Geological Units and Structures ### Description: The cross-section diagram presented spans a distance from the west (left) to the east (right) over 800 meters and depicts various geological formations labeled with letters A through J. The vertical scale also covers an approximate depth of 200 meters. It includes different geological structures and features like contacts, metamorphism, unconformities, and marker beds. The diagram is divided by a vertical scale into several distinct strata, each demarcated by specific annotations and labeled units. ### Annotations and Geological Features: - **Contact Metamorphism:** Represented by dotted lines, these zones show regions where rock has undergone metamorphism due to the heat and pressure from adjacent igneous intrusions. - **Unconformity:** Illustrated by wavy lines, these surfaces represent significant gaps in the geological record, indicating periods where deposition stopped, erosion removed previously formed rocks, and then deposition resumed. - **Marker Bed in Unit I:** Shown by dash-dot-dash lines, indicating a distinctive layer within Unit I that can be used as a reference point across the cross-section. ### Units and Structures: - **A, B, C, D, E, F, G, H, I, J:** - These labeled units represent different rock layers or strata in the geological cross-section, each distinguished by specific lithological characteristics. - The layers appear to be curved due to deformation, possibly indicating folding events during geological history. ### Significant Features: - **Labeled Points (H, K, L):** - Each point is indicated on the diagram, pointing out specific areas of interest. For example: - **H** points towards a zone where a particular observation or type of rock is notable. - **K** and **L** follow similar logic, directing attention to key areas in the cross-section. ### Horizontal Measure: - **Distance Scale:** - The horizontal dimension of the section spans 800 meters in length, clearly marked by a scale at the bottom of the diagram. ### Vertical Measure: - **Depth/Height Scale:** - The vertical dimension approximately covers 200 meters in depth, offering insight into the vertical extent of the geological formations. ### Key: - **Legend:** - **Dotted Line:** Contact metamorphism - **Wavy Line:** Unconformity - **Dash-dot-dash Line:** Marker bed in
Transcribed Image Text:## Cross-Section Diagram Analysis of Geological Units and Structures ### Description: The cross-section diagram presented spans a distance from the west (left) to the east (right) over 800 meters and depicts various geological formations labeled with letters A through J. The vertical scale also covers an approximate depth of 200 meters. It includes different geological structures and features like contacts, metamorphism, unconformities, and marker beds. The diagram is divided by a vertical scale into several distinct strata, each demarcated by specific annotations and labeled units. ### Annotations and Geological Features: - **Contact Metamorphism:** Represented by dotted lines, these zones show regions where rock has undergone metamorphism due to the heat and pressure from adjacent igneous intrusions. - **Unconformity:** Illustrated by wavy lines, these surfaces represent significant gaps in the geological record, indicating periods where deposition stopped, erosion removed previously formed rocks, and then deposition resumed. - **Marker Bed in Unit I:** Shown by dash-dot-dash lines, indicating a distinctive layer within Unit I that can be used as a reference point across the cross-section. ### Units and Structures: - **A, B, C, D, E, F, G, H, I, J:** - These labeled units represent different rock layers or strata in the geological cross-section, each distinguished by specific lithological characteristics. - The layers appear to be curved due to deformation, possibly indicating folding events during geological history. ### Significant Features: - **Labeled Points (H, K, L):** - Each point is indicated on the diagram, pointing out specific areas of interest. For example: - **H** points towards a zone where a particular observation or type of rock is notable. - **K** and **L** follow similar logic, directing attention to key areas in the cross-section. ### Horizontal Measure: - **Distance Scale:** - The horizontal dimension of the section spans 800 meters in length, clearly marked by a scale at the bottom of the diagram. ### Vertical Measure: - **Depth/Height Scale:** - The vertical dimension approximately covers 200 meters in depth, offering insight into the vertical extent of the geological formations. ### Key: - **Legend:** - **Dotted Line:** Contact metamorphism - **Wavy Line:** Unconformity - **Dash-dot-dash Line:** Marker bed in
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