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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 near Bhonti village in Pichhore block of Shivpuri district of Madhya Pradesh state in India.[2] It is the largest crater in India,[2] and between the Mediterranean and Southeast Asia. The diameter of the structure is estimated at 3 km,[3] while other sources estimate its diameter to be 11 km diameter. It is the second such crater found in India, after Lonar lake.[2]

It is 200 km east of the Ramgarh crater, the location of 11th century Bhand Deva Temple which was renovated by INTACH in 2018.

Impact date

It is estimated that the impact occurred between 2.44 and 2.24 Ga.[4] Basement rocks are predominantly composed of granitoids.

Largest in India

This crater on the Bundelkhand craton is the largest crater in India.[2][5]

See also

Impact craters in India
Other related topics

References

  1. ^ "Dhala". Earth Impact Database. Planetary and Space Science Centre University of New Brunswick Fredericton. Retrieved 2016-04-26.
  2. ^ a b c d PTI (11 January 2009). "Indian geologist discovers oldest impact structure in India". Live Mint, News. Retrieved 26 July 2015.
  3. ^ "Meteoritical Bulletin: Entry for Dhala". www.lpi.usra.edu. Retrieved 2020-01-24.
  4. ^ 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. Bibcode:2018GondR..54...81L. doi:10.1016/j.gr.2017.10.006.
  5. ^ 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.

Singh A.K., Pati J.K., Sinha R., Reimold W.U., Prakash K., Nadeem M., Dwivedi S., Mishra D., and Dwivedi A.K. 2021. Characteristic landforms and geomorphic features associated with impact structures: Observations at the Dhala structure, north-central India. Earth Surface Processes and Landforms, 46(8), 1482-1503 (Wiley; doi: 10.1002/esp.5115).

Singh A.K., Pati J.K., Patil S.K., Reimold W.U., Rao A.K., and Pandey O.P. 2021. Anisotropy of magnetic susceptibility (AMS) of impact melt breccia and target rocks from the Dhala impact structure, India. In: Reimold W.U. and Koeberl C. (eds.), Large Meteorite Impacts and Planetary Evolution VI, Geological Society of America, Special Paper 550, 351-371 (GSA; doi: 10.1130/2021.2550(14)).

Pati J.K., Poelchau M.H., Reimold W.U., Nakamura N., Kuriyama Y., and Singh A.K. 2019. Documentation of shock features in impactites from the Dhala impact structure, India. Meteoritics & Planetary Science, 54(10), 2312-2333 (Wiley; doi: 10.1111/maps.13369).

Aryavart A., Singh A.K., Mezger K., and Pati J.K. 2023. Chromium isotopes identify the extraterrestrial components in impactites from Dhala impact structure, India. Meteoritics and Planetary Science, 58(5), 722-736 (Wiley; doi.org/10.1111/maps.13982).

Further reading

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

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