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🌏 Geography of Bihar Chapter 2: Physical Divisions of Bihar (भौतिक विभाग)

Module 5: Southern marginal plateau

📖 Chapter 2 of 17 🧩 Module 5 of 6 ⏱️ ~2 min read 💡 6 MCQs
Topic Part 1 of 2

Concept

Subtopic 5.1: Southern marginal plateau

  • South of the Ganga plain, the exposed Chotanagpur plateau shows old rocks: gneiss, schist and granite (Archean).
  • This is a region of fast-flowing streams, steep slopes, hills, level active valleys and uneven terrain. It includes the hills of Gaya, Mandar, Barabar, Jethian, Rajgir, Gangeshwari and Sheikhpura (hog-back ridges), Biharsharif, Jamalpur, Munger and the Kaimur plateau of Rohtas and Kaimur districts.
  • Ridges of quartzite from Navinagar and Moratal to Munger stand like hogbacks (sukar peeth).
  • Together the eroded Chotanagpur and Kaimur plateaus make land about 150–300 m high.
  • The Son river separates the Kaimur plateau from the Chotanagpur plateau.
  • In Chotanagpur's northern border area there are Archean, gneiss and granite; the Kaimur plateau has sandstone.
⭐ Key Points
  • Archean gneiss, schist and granite appear.
  • The Son lies between them.
  • Sandstone is typical of Kaimur.
  • They appear like a hog's back.
  • Roughly 150 to 300 m.
  • Kaimur plateau spreads over Rohtas and Kaimur.
📌 One-line Q&A
  • Question: Rocks of the Chotanagpur northern margin are mainly: Answer: Archean gneiss and granite.
  • Question: The Son river separates the Kaimur plateau from: Answer: Chotanagpur plateau.
  • Question: The Kaimur plateau contains mainly: Answer: Sandstone.
  • Question: Quartzite ridges from Navinagar and Moratal to Munger are called: Answer: Hogback ridges.
  • Question: The combined height of the eroded plateau lands is about: Answer: 150–300 m.
  • Question: The Kaimur plateau extends across districts: Answer: Rohtas and Kaimur.
Topic
Questions

MCQs

Answer this question, then use Next.

Question 1: Rocks of the Chotanagpur northern margin are mainly:

Archean gneiss, schist and granite appear.

Question 2: The Son river separates the Kaimur plateau from:

The Son lies between them.

Question 3: The Kaimur plateau contains mainly:

Sandstone is typical of Kaimur.

Question 4: Quartzite ridges from Navinagar and Moratal to Munger are called:

They appear like a hog's back.

Question 5: The combined height of the eroded plateau lands is about:

Roughly 150 to 300 m.

Question 6: The Kaimur plateau extends across districts:

Kaimur plateau spreads over Rohtas and Kaimur.
Question 1 of 6

One-liners

Write your answer, then submit to see the correct answer.

Rocks of the Chotanagpur northern margin are mainly:

Archean gneiss and granite.

The Son river separates the Kaimur plateau from:

Chotanagpur plateau.

The Kaimur plateau contains mainly:

Sandstone.

Quartzite ridges from Navinagar and Moratal to Munger are called:

Hogback ridges.

The combined height of the eroded plateau lands is about:

150–300 m.

The Kaimur plateau extends across districts:

Rohtas and Kaimur.
Question 1 of 6