Question

Which one of the following was emplaced in the Neoproterozoic time?

• A. Singhbhum Granite
• B. Dongargarh Granite
• C. Closepet Granite
• D. Erinpura Granite

Answer 1

The Correct Option is D

The question asks us to identify which of the given granites was emplaced during the Neoproterozoic era. Let's examine each option:

1. Singhbhum Granite: The Singhbhum Granite is one of the oldest igneous rock units in India, and it was formed during the Archean era, far earlier than the Neoproterozoic era. Therefore, this option is not the correct answer.
2. Dongargarh Granite: This granite is associated with Proterozoic tectonic settings, but it dates back to the Mesoproterozoic era rather than the Neoproterozoic era. Thus, this option is also incorrect.
3. Closepet Granite: The Closepet Granite is primarily dated to the late Archean period, which is older than the Neoproterozoic era. Hence, this option is not suitable.
4. Erinpura Granite: The Erinpura Granite belongs to the western parts of India and was emplaced during the Neoproterozoic era. This makes it the correct choice in this context.

Thus, the granite that was emplaced during the Neoproterozoic time is Erinpura Granite.

Conclusion: Based on the examination of the geological era during which each granite type was emplaced, the correct answer is Erinpura Granite.