Question

Match the geological processes (Group I) with their examples in Indian stratigraphy (Group II).
\[ \begin{array}{|l|l|} \hline \textbf{Group I} & \textbf{Group II} \\ \hline P. \ \text{Permo-Carboniferous glaciation} & 3. \ \text{Talchir Formation} \\ Q. \ \text{Cretaceous marine transgression} & 4. \ \text{Lameta Formation} \\ R. \ \text{Neogene fluvial sedimentation} & 2. \ \text{Siwalik Group} \\ S. \ \text{Cretaceous inter-trappean sedimentation} & 1. \ \text{Ariyalur Group} \\ \hline \end{array} \]

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

Hint:

Geological processes like glaciation, marine transgression, and fluvial sedimentation play key roles in shaping the sedimentary records of regions like the Siwalik and Talchir formations.

Answer 1

The Correct Option is C

Step 1: Understanding the question.
The question asks to match geological processes with their corresponding examples in Indian stratigraphy. Each process is related to a specific sedimentary deposit.
Step 2: Analyzing the options.
(A) P-3 Q-4 R-1 S-2: This combination is incorrect based on known geological processes and formations in India.
(B) P-2 Q-3 R-4 S-1: This combination is incorrect, as it mismatches the processes and formations.
(C) P-3 Q-2 R-1 S-4: Correct — Permo-Carboniferous glaciation is represented by the Talchir Formation, Cretaceous marine transgression is seen in the Siwalik Group, Neogene fluvial sedimentation corresponds to the Ariyalur Group, and Cretaceous inter-trappean sedimentation is found in the Lameta Formation.
(D) P-4 Q-1 R-2 S-3: This combination is also incorrect based on geological history and locations.
Step 3: Conclusion.
The correct answer is (C) P-3 Q-2 R-1 S-4, as it matches the geological processes with the appropriate formations in Indian stratigraphy.