DETAILED READING
Date: 2015-10-07; view: 501.
Use the following, so as to write a description of sedimentary rocks. Label each description (conglomerate / breccia / rudite)
Types of sedimentary rocks
Sedimentary rocks
| Composition | Size | Types | Features (what?) |
| Type | Derivation | Composition | Formation | Examples |
3.2.3 Give detailed information to the following questions.
1. What are the main ingredients in sedimentary rocks?
2. How many groups according to particle-size are there?
3. What are fine-grained particles?
4. What are medium-grained particles?
5. Classify the following rocks according to grain-size:
- mudstone - orthoquartzite
- shale - arkose
- siltstone - graywacke (grey)
6. Where do rock-forming fragments settle?
7. What are the four components of sandstone?
8. According to components, what are the four types of sandstone?
9. What is the percentage of sedimentary rocks?
10. What are the ingredients in a clastic sedimentary rock? (draw a diagram)
coarse rounded fragments poorly sorted fragments
clasts waterborne clay-rich matrix
finer particles remnants talus
natural concrete(s) eroded mountain ranges deserts
mountain fronts mudslides
shallow coastal waters shrinkage
natural cement
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to be mixed to accumulate to be embedded
to consolidate to mix with to originate
to bound
Read the text and fulfill the after reading exercises (R.P – 6.1. 6.2 )
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| C. shallow coast lines | | | TEXT 1 - Sedimentary Rocks |