Dhala impact structure

Dhala impact structure
Dhala impact structure is located in India
Dhala impact structure
Impact crater/structure
ConfidenceConfirmed
Diameter3–11 kilometres (1.9–6.8 mi)
Age2.44 and 2.24 Ga
CountryIndia
StateMadhya Pradesh
DistrictShivpuri district
MunicipalityBhonti village

Dhala crater (N25°17'59.7" and E78°8'3.1") is an impact structure 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 impact structure in India,[2] and between the Mediterranean and Southeast Asia. The diameter of the structure is estimated at 3 kilometres (1.9 mi),[3] while other sources estimate its diameter to be 11 km diameter. It is the second such structure found in India, after Lonar lake.[2]

It is 200 km east of the Ramgarh crater.

Impact date

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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

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

See also

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Impact craters in India
Other related topics

References

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  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.

Further reading

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