Advertisements
Advertisements
प्रश्न
Name the three stages of lithification of Sedimentary rocks.
Advertisements
उत्तर
-
Compaction: The weight of overlying layers compresses the sediments, reducing pore spaces.
-
Evaporation: Water is removed, leaving behind dissolved minerals.
-
Cementation: Minerals like silica, calcium compounds, or iron bind the compacted sediments together, turning them into solid rock.
APPEARS IN
संबंधित प्रश्न
What are minerals?
Classify the following rocks by selecting the correct option given below:
basalt
State two points of distinction between rocks and minerals.
What are known as metamorphic rocks?
Distinguish between the following:
Plutonic and Volcanic rocks.
State the types of rocks for the formation of which the following process is involved.
Accumulation takes place over long periods of time in seas, lakes and streams.
What is metamorphism?
Give a detailed account of lithiflcation of sedimentary rocks.
In what type of rocks do you find fossils and why?
How are chemically-formed sedimentary rocks produced?
Distinguish between Regional and Contact metamorphism.
Classify the following rock: Coal
Classify the following rock: Peat
Classify the following rock: Rock salt
Fill in the blanks
Extrusive rocks are also known as ______ rocks.
Give one example of an area of: Metamorphic rocks,
Choose the incorrect statement from the following.
______ rocks are also called Primary rocks.
Match the following.
| A. | Basalt | 1. | Anthracite |
| B. | Limestone | 2. | Extrusive igneous |
| C. | Coal | 3. | Metamorphic rock |
| D. | Gneiss | 4. | Sedimentary rock |
Statement (1): Sedimentary rocks consist of many layers.
Statement (2): Sedimentary rocks are formed by the sediments deposited at different points of time.
