Question

Match the following structures in Group I with the corresponding environment of deposition in Group II: 

• A. P-4, Q-1, R-2, S-3
• B. P-4, Q-1, R-3, S-2
• C. P-3, Q-1, R-2, S-4
• D. P-2, Q-4, R-1, S-3

Hint:

The environment of deposition determines the specific sedimentary structures formed, such as herringbone cross stratification in tidal areas or star dunes in wind-blown regions.

Answer 1

The Correct Option is A

Let's go through the matching process:
- P. Lateral accretionary surfaces are typically associated with fluvial environments where river channels erode and deposit sediments on the lateral surfaces of the channel. Hence, P-4 is correct.
[6pt] - Q. Herringbone cross stratification is a feature commonly found in tidal environments, where bidirectional currents cause the formation of cross-bedding in alternating directions. Therefore, Q-1 is correct.
[6pt] - R. Lateral moraine is a characteristic of glacial environments, formed by debris deposited along the sides of glaciers. Thus, R-2 is correct.
[6pt] - S. Star dune is a feature of aeolian (wind-dominated) environments, where winds blow in multiple directions, forming dunes with multiple arms. Hence, S-3 is correct.
Thus, the correct answer is (A): P-4, Q-1, R-2, S-3.