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The Geological Survey of India (GSI) is a scientific agency of India.It was founded in 1851, as a Government of India organization under the Ministry of Mines, one of the oldest of such organisations in the world and the second oldest survey in India after the Survey of India (founded in 1767), for conducting geological surveys and studies of India, and also as the prime provider of basic ...
Geology of India. Plates in the crust of the earth, according to the plate tectonics theory. The geology of India is diverse. Different regions of the Indian subcontinent contain rocks belonging to different geologic periods, dating as far back as the Eoarchean Era. Some of the rocks are very deformed and altered.
Malani Igneous Suite is the largest in India and third largest igneous suit in the world. [20] [21] The uniqueness of the geological feature of Malani Igneous Suite at Jodhpur prompted the Geological Survey of India to declare the site as a National Geological Monument. [22]
National Geological Monuments of India. Natural stone arch in Tirumala. National Geological Monuments are geographical areas of national importance and heritage, as notified by the Government of India 's Geological Survey of India (GSI), for their maintenance, protection, promotion and enhancement of geotourism. [1][2][3]
A map showing the triangles and transects used in the Great Trigonometrical Survey (1802–1852), produced in 1870. Surveyor-General of India George Everest (b.1790-d.1866) under whom GTS was completed and Mount Everest was named in his honour.
Fig 4: The northward drift of India from 71 Ma ago to present time. Note the simultaneous counter-clockwise rotation of India. Collision of the Indian continent with Eurasia occurred at about 55 million years ago. Source: www.usgs.org (modified) Fig 5: Geologic - Tectonic map of the Himalaya, modified after Le Fort & Cronin (1988).
The Smithsonian Institution, the United States Geological Survey, Geological Survey of India, the University of Sagar and the Physical Research Laboratory have conducted extensive studies of the site. [14] [15] Biological nitrogen fixation was discovered in this lake in 2007. [16]
Henry Wesley Voysey. A watercolour portrait by William Havell made in Hyderabad in 1823. Henry Wesley Voysey (1791-19 April 1824), was a physician, geologist and mineralogist who worked in India in the service of the East India Company. He has been called the "father of Indian geology." He made one of the first [1] geological maps in India ...
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