📚 Part of: Karnataka Agriculture And Economic Geography Mcqs

This rock formation called Peninsular Gneiss is estimated to be 2500-3400 million years old. Where is the Peninsular Gneiss located in Bangalore.

Category: Karnataka Gk

Correct Answer: B) Lalbagh Botanical Garden.

Exam Relevance: Karnataka PSC, KSET, Bangalore City Exams

Difficulty: Moderate

Concept notes:

Peninsular Gneiss is one of the oldest rock formations in India, dating back to the Archean Eon. It is a metamorphic rock that is found in various parts of the Indian peninsula, including Bangalore. In Bangalore, this rock formation is prominently displayed in Lalbagh Botanical Garden, which is a significant geological and botanical landmark.

Common Mistakes:
  • Confusing Peninsular Gneiss with other rock formations found in Bangalore.
  • Believing that Peninsular Gneiss is only found in remote or mountainous areas, not in urban settings like Lalbagh.
  • Not recognizing the significance of Lalbagh Botanical Garden as a geological site.
Explanation:

Peninsular Gneiss is a type of metamorphic rock that is one of the oldest rock formations in India, dating back to the Archean Eon, which spans from 4 billion to 2.5 billion years ago. This rock formation is found in various parts of the Indian peninsula, including Bangalore. The Peninsular Gneiss is characterized by its banded structure and is formed through the high-temperature and high-pressure metamorphism of igneous rocks.

In Bangalore, the Peninsular Gneiss is prominently displayed in Lalbagh Botanical Garden, which is a significant geological and botanical landmark. Lalbagh is not only known for its diverse collection of plants and trees but also for its geological significance. The rock formation in Lalbagh provides a tangible connection to the ancient geological history of the region, making it a valuable site for both educational and research purposes.

The presence of Peninsular Gneiss in Lalbagh Botanical Garden is a testament to the geological history of Bangalore and the broader Indian peninsula. This rock formation is a key indicator of the region's ancient geological processes and the transformation of the Earth's crust over millions of years. Visitors to Lalbagh can observe and study the Peninsular Gneiss, gaining insights into the geological history of the area and the broader context of the Indian subcontinent.

It is important to note that while Peninsular Gneiss is found in Lalbagh, other locations in Bangalore and the surrounding areas may also contain this rock formation. However, Lalbagh is the most prominent and accessible site for studying and observing this ancient rock type in Bangalore. The geological significance of Lalbagh makes it a valuable resource for students, researchers, and enthusiasts interested in the geological history of the region.

In summary, the Peninsular Gneiss rock formation is prominently displayed in Lalbagh Botanical Garden, making it the correct answer to the question. This location is a significant geological site that provides a tangible connection to the ancient geological history of Bangalore and the Indian peninsula.

Option Analysis:
  • Option A: Cubbon Park is a significant park in Bangalore, but it is not known for its geological significance in terms of Peninsular Gneiss. The rock formation is not prominently displayed or studied in Cubbon Park, making this option incorrect.
  • Option B: Lalbagh Botanical Garden is the correct answer because it is a well-known location in Bangalore where Peninsular Gneiss is prominently displayed. The garden is not only a botanical landmark but also a geological site that showcases the ancient rock formation.
  • Option C: Ulsoor Lake is a popular recreational area in Bangalore, but it is not associated with the Peninsular Gneiss rock formation. The lake and its surroundings do not have significant geological features related to this ancient rock type.
  • Option D: Devanhalli is a town near Bangalore, but it is not known for its Peninsular Gneiss rock formation. The geological significance of this area is not related to the specific rock formation mentioned in the question.

Mnemonic: Gneiss in Lalbagh: "Gneiss in the Garden"

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