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Dhala impact structure

Coordinates: 25°18′N 78°8′E / 25.300°N 78.133°E / 25.300; 78.133
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Dhala crater (N25°17'59.7" and E78°8'3.1") is a crater formed by an asteroid impact.[1] It is situated in Shivpuri district, Madhya Pradesh India and is the second such crater found in India, after Lonar lake.[2] The diameter of the structure is estimated at 11 km and basement rocks are predominantly composed of granitoids. It is estimated that the impact occurred between 2.44 and 2.24 Ga[3]/> or about 2,500 million years ago. It is 240 km from the Ramgarh crater, the location of 11th century Bhand Deva Temple being renovated by INTACH in 2018.

Largest in India

Dhala crater is considered as the largest in India as well as between the Mediterranean and Southeast Asia.[2][4] The crater is considered a "large complex impact structure" with an estimated diameter extending up to 25 km.[5]

References

  1. ^ "Dhala". Earth Impact Database. Planetary and Space Science Centre University of New Brunswick Fredericton. Retrieved 2016-04-26.
  2. ^ a b PTI (11 January 2009). "Indian geologist discovers oldest impact structure in India". Live Mint, News. Retrieved 26 July 2015.
  3. ^ Li, Shan-Shan; Keerthy, S; Santosh, M; Singh, S.P; Deering, C.D; Satyanarayanan, M; Praveen, M.N; Aneeshkumar, V; Indu, G.K; Anilkumar, Y; Sajinkumar, K.S (2018). "Anatomy of impactites and shocked zircon grains from Dhala reveals Paleoproterozoic meteorite impact in the Archean basement rocks of Central India". Gondwana Research. 54: 81–101. doi:10.1016/j.gr.2017.10.006.
  4. ^ Pati, J. K.; Reimold, W. U.; Koeberl, C.; Singh, H. K.; Pati, P. (2008). Dhala - A New, Complex, Paleoproterozoic Impact Structure in Central India (PDF). Large Meteorite Impacts and Planetary Evolution IV. Bibcode:2008LPICo1423.3041P.
  5. ^ Vishwas, S Kale (2014). Landscapes and Landforms of India. Springer. p. 229. ISBN 978-94-017-8029-2. Retrieved 28 July 2015.

Further reading

  • Pati, Jayanta K; Reimold, Wolf Uwe; Koeberl, Christian; Pati, Puniti (2008). "The Dhala structure, Bundelkhand craton, Central India-Eroded remnant of a large Paleoproterozoic impact structure". Meteoritics & Planetary Science. 43 (8): 1383–1398. doi:10.1111/j.1945-5100.2008.tb00704.x.

25°18′N 78°8′E / 25.300°N 78.133°E / 25.300; 78.133

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