Denudation Chronology and Erosional Surfaces

Options:

1. 427 m
2. 1000 ft
3. 305 m
4. 150 m

Correct Answer

Options:

1. Age of the surfaces, thickness of later deposits, and relative hardness of rocks
2. Number and spacing of streams, and drainage density
3. Environmental factors
4. All of the above

Correct Answer

Options:

1. They undergo more modifications and changes.
2. They remain unchange
3. They are more resistant to environmental factors.
4. None of the above.

Correct Answer

Options:

1. By exposing them to environmental factors.
2. By protecting them with thick layers of sediments.
3. By increasing stream frequency and drainage density.
4. By increasing the relative hardness of rocks.

Correct Answer

Options:

1. Lack of requisite period of time
2. Higher stream frequency
3. Lower drainage density
4. Faster rate of denudation

Correct Answer

Options:

1. Late Tertiary and pre-Quaternary surfaces developed on resistant rocks
2. Mesozoic surfaces found in much dissected condition
3. Surfaces older than Mesozoic
4. Post-Tertiary and Quaternary surfaces developed on weak rocks

Correct Answer

Options:

1. Dating based on lithological characteristics
2. Dating based on the correlation with known erosion surfaces
3. Dating based on geological unconformity
4. Dating based on stream frequency and drainage density

Correct Answer

Options:

1. Height correlation method
2. Geological unconformity
3. Dating based on lithological characteristics
4. None of the above

Correct Answer

Options:

1. Netarhat pat
2. Jam ira pat
3. K ham arpat
4. Patland

Correct Answer

Options:

1. Because it cannot be applied to surfaces formed prior to the evolution of organic life.
2. Because it cannot be applied to surfaces where organic fossils have been completely destroye
3. Both A and B are correct.
4. None of the above.

Correct Answer

Options:

1. Pre-Dalm a Surface
2. Dalma Surface
3. Post-Dalm a Surface
4. None of the above.

Correct Answer

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1. It helps determine the mode of origin and date of erosion surfaces.
2. It helps in understanding the successive stages of erosion of the highlands.
3. It helps in the reconstruction of the evolutionary history of drainage of the concerned region.
4. All of the above.

Correct Answer

Options:

1. The erosion surface was formed by marine processes
2. The erosion surface was formed by fluvial processes
3. The erosion surface was formed by both marine and fluvial processes
4. The erosion surface was formed by neither marine nor fluvial processes

Correct Answer

Options:

1. Through soil creep and slumping
2. Through transgression of sea water
3. Both a and b
4. None of the above

Correct Answer

Options:

1. Because it is difficult to determine the exact age of the sediments
2. Because the sediments could have been deposited by different processes
3. Because erosion surfaces are constantly changing
4. None of the above

Correct Answer

Options:

1. An erosion surface formed by marine processes
2. An erosion surface formed by fluvial processes
3. An uplifted landmass
4. None of the above

Correct Answer

Options:

1. By interpreting the sequence of sedimentation in another area
2. By reconstructing the evolutionary history of drainage
3. By using radio carbon dating
4. All of the above

Correct Answer

Options:

1. A fluvial cycle of erosion that peneplained the uplifted landmass of Chotanagpur
2. A marine cycle of erosion that formed the erosion surfaces of Chotanagpur
3. A volcanic cycle of erosion that interrupted the pre-Dalma cycle
4. None of the above

Correct Answer

Options:

1. Glaciation
2. Volcanic eruptions
3. Fluvial erosion
4. Faulting

Correct Answer

Options:

1. Chotanagpur highlands
2. Dalma highlands
3. Dhanjori highlands
4. Vindhyan highlands

Correct Answer