India Geological Era
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India has its own geological eras and periods. The standard geological eras are
- The Pre-Cambrian (over 570 million years old)
- The Paleozoic (245-570 million years old)
- The Mesozoic (66-245 million years old)
- The Cenozoic (66 million years old to the present) <>
- The Archean or Early Pre-Cambrian
- The Purana or Late Pre Cambrian
- The Dravidian (400-570 million years old)
- The Aryan (400 million years old to the present)
The Pre Cambrian derives its names from Wales in the United Kingdom. The periods got their names from places where rock formations of that period were formed. The Pre-Cambrians do not contain fossils of plants and animals. The Paleozoic have the fossils of very early lives, the Mesozoic have middle lives and the Cenozoic recent lives.
| Major Geological Formations of India | |||||
|---|---|---|---|---|---|
| Indian Era | Standard Geological Eras and Periods | Duration of Period (in million years) | Age from beginning (in million years) | Major Formation in Peninsula | Major Formations in Extra Peninsula |
| Aryan | Cenozoic Quaternary (Recent Pleistocene) Tertiary (Pliocene Miocene) Eocene Mesozoic Cretaceous Jurassic Triassic | Less than 2 | 2 or 3 | Newer Alluvial deserts, laterites | Formation of Ganga Plains |
| Dravidain | Paleozoic Permian Carboniferous Devonian Silurian Ordovician | 64 | - | Tertiary Coastal Deposits | Formation of Himalayas |
| Purana | Pre-Cambrian Late Pre-Cambrian | - | 570 | Vindhayan Cuddaph Dharwar Aravalli Archean systems | Archean Gneiss |
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