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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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Tell me the texture, the grain size, the composition, the rock name and it's deposional environment. The rock I need identify is rock #25 and the image is below. Also there is an example on how it should look on rock #13. 

The image shows a rock specimen labeled with a small round sticker marked "25." The rock has a rough surface with light brown and whitish coloration. The image appears to focus closely on the rock, set against a dark, textured background. - **Rock Description**: The rock appears to have a crystalline structure, suggested by its rough, uneven surface. The color variation from light brown to white may indicate different mineral compositions. - **Educational Context**: This rock could be part of a geological collection for educational purposes, potentially used in lessons about mineral identification, rock formation, or earth sciences. Rocks like these help students understand topics such as the rock cycle, types of rocks (igneous, sedimentary, metamorphic), and geological history. In an educational setting, students might be asked to examine the physical properties of the rock, such as texture, color, and hardness, to identify the type and possibly its origin.
Transcribed Image Text:The image shows a rock specimen labeled with a small round sticker marked "25." The rock has a rough surface with light brown and whitish coloration. The image appears to focus closely on the rock, set against a dark, textured background. - **Rock Description**: The rock appears to have a crystalline structure, suggested by its rough, uneven surface. The color variation from light brown to white may indicate different mineral compositions. - **Educational Context**: This rock could be part of a geological collection for educational purposes, potentially used in lessons about mineral identification, rock formation, or earth sciences. Rocks like these help students understand topics such as the rock cycle, types of rocks (igneous, sedimentary, metamorphic), and geological history. In an educational setting, students might be asked to examine the physical properties of the rock, such as texture, color, and hardness, to identify the type and possibly its origin.
**Table: Geological Sample Information** | Sample # | Texture | Grain Size | Composition | Rock Name | Depositional Environment | |----------|------------------------------|------------|----------------------------------|-----------|--------------------------| | 13 | Rough, gritty, coarse-grained| gravel | Feldspar, hematite, quartz | Breccia | Mountains | **Explanation:** This table presents data on a geological rock sample, labeled as Sample #13. The sample has a rough, gritty, and coarse-grained texture, with the primary grain size being gravel. The composition includes minerals such as feldspar, hematite, and quartz. The rock type is classified as breccia, indicating a depositional environment typical of mountainous regions. Breccia is characterized by its angular fragments and is often formed in high-energy settings, such as near fault zones or in regions with rapid sediment deposition.
Transcribed Image Text:**Table: Geological Sample Information** | Sample # | Texture | Grain Size | Composition | Rock Name | Depositional Environment | |----------|------------------------------|------------|----------------------------------|-----------|--------------------------| | 13 | Rough, gritty, coarse-grained| gravel | Feldspar, hematite, quartz | Breccia | Mountains | **Explanation:** This table presents data on a geological rock sample, labeled as Sample #13. The sample has a rough, gritty, and coarse-grained texture, with the primary grain size being gravel. The composition includes minerals such as feldspar, hematite, and quartz. The rock type is classified as breccia, indicating a depositional environment typical of mountainous regions. Breccia is characterized by its angular fragments and is often formed in high-energy settings, such as near fault zones or in regions with rapid sediment deposition.
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