Geological Evolution — Syllabus
ICSE · Class 12 · Geography
What Geological Evolution covers in ICSE Class 12 Geography: 4 topics, for the 2026-27 session. Part of the ICSE Class 12 Geography syllabus.
Interactive on Super Tutor
Studying Geological Evolution? Get the full interactive chapter.
Quizzes, flashcards, AI doubt-solver and a step-by-step study plan — built for syllabus and more.
Free trial, no card needed.
Topics in Geological Evolution
Basic Geological Ideas and Time Division
- Geology means the science of the earth's crust.
- Historical geology studies the development of the crust in time and space.
- Eras are the primary intervals of time, and periods are secondary intervals.
Indian Geological Units and the Peninsular Plateau
- India is made up of three geological units: the Peninsular plateaus, the Himalayan mountains, and the Indo-Gangetic plains.
- The Peninsular Plateau is also called the Southern Plateau.
- It is surrounded by sea on three sides.
The Himalayas and Plate Tectonic Theory
- The Himalayan mountain ranges are much younger than the Peninsular Plateau and are called the Young Fold Mountains.
- Until the Mesozoic era, the Himalayan and plain areas remained under sea water as part of the Tethys geosyncline.
- The Tethys Sea lay between Angaraland in the north and Gondwanaland in the south.
The Great Plain and Ongoing Landform Development
- The Great Plain lies between the Himalayas in the north and the Peninsular Plateau in the south.
- It formed in a depression caused by Himalayan uplift and subsidence of the northern flank of the peninsula.
- Rivers from the north and south deposited sediment in this depression.
Key Concepts
Central concept: Geological evolution of India
Work through every topic in Geological Evolution with notes and quizzes
Start This ChapterFrequently Asked Questions
What are the important topics in Geological Evolution for ICSE Class 12 Geography?
How should I revise Geological Evolution for the ICSE Class 12 board exam?
Sources & Official References
Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.
More resources for Geological Evolution
Practice Quiz
Test yourself with a quick quiz
Important Questions
Exam-style questions with answers
Revision Notes
Key points for last-minute revision
Chapter Summary
Understand the chapter at a glance
Concept Maps
See how topics connect
Study Plan
Step-by-step plan for this chapter
Flashcards
Quick-fire cards for active recall
For serious students
Get the full Geological Evolution chapter — start free.
Quizzes, flashcards, an AI doubt solver and a study plan for ICSE Class 12 Geography. Free to start, no card needed.