Question

Match the lithostratigraphic groups in Column I with their corresponding formations in Column II.

Column I		Column II
P.	Papaghni Group	1.	Kajrahat Formation
Q.	Uttatur Group	2.	Nagri Formation
R.	Siwalik Group	3.	Vempalle Formation
S.	Semri Group	4.	Karai Formation

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

Answer 1

The Correct Option is B

This problem involves matching lithostratigraphic groups with their corresponding formations. Let's analyze each pair:

1. Papaghni Group: This group is part of the Chitravati series in the Cuddapah basin of South India. The specific formation associated with the Papaghni Group is the Vempalle Formation. Therefore, the correct match for Papaghni Group is option 3 (Vempalle Formation).
2. Uttatur Group: It belongs to the sequence of sedimentary rocks in the Cretaceous period of South India. The formation associated with the Uttatur Group is the Karai Formation. Therefore, the match is option 4 (Karai Formation).
3. Siwalik Group: This group is famous for its rich fossil beds and represents the deposits along the Sub-Himalayas. The Nagri Formation is one of the subdivisions of the Siwalik rocks. Thus, the correct match is option 2 (Nagri Formation).
4. Semri Group: This is a geologic group in the Son valley focusing on the Indian Proterozoic eon. The formation associated is the Kajrahat Formation. Therefore, the match is option 1 (Kajrahat Formation).

So, the correct series of matches is:

• P – 3 (Vempalle Formation)
• Q – 4 (Karai Formation)
• R – 2 (Nagri Formation)
• S – 1 (Kajrahat Formation)

Thus, the answer is indeed the option: P – 3, Q – 4, R – 2, S – 1.