Question

Match the metal deposits in Group I with the corresponding processes in Group II. 
Group I                       Group II 
P. Aluminum               1. Mechanical concentration 
Q. Iron                         2. Contact metasomatism 
R. Tungsten                 3. Residual concentration 
S. Thorium                   4. Chemical sedimentation 
 

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

Hint:

The formation of metal deposits is often linked to specific geological processes, such as mechanical concentration for aluminum and contact metasomatism for tungsten.

Answer 1

The Correct Option is B

Step 1: Understanding Metal Deposits and Processes.
- Aluminum is primarily concentrated through mechanical concentration (P-1), often from lateritic deposits.
- Iron ores are typically the result of residual concentration (Q-3), forming in weathered environments.
- Tungsten is often associated with contact metasomatism (R-2), where heat and fluids from igneous activity alter surrounding rock.
- Thorium deposits are typically formed through chemical sedimentation (S-4), particularly in marine environments.
Step 2: Conclusion.
The correct answer is (A) P-1, Q-3, R-2, S-4, as it correctly matches the metal deposits with their corresponding processes.