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]
| Dhala impact structure | |
|---|---|
| tapkeshwar pahadi | |
  | |
| Impact crater/structure | |
| Confidence | Confirmed |
| Diameter | 3–11 kilometres (1.9–6.8 mi) |
| Age | 2.44 and 2.24 Ga |
| Country | India |
| State | Madhya Pradesh |
| District | Shivpuri district |
| Municipality | Bhonti village |
It is 200 km east of the Ramgarh crater.
Impact date
editIt is estimated that the impact occurred between 2.44 and 2.24 Ga.[4] Basement rocks are predominantly composed of granitoids.
Largest in India
editThis impact structure on the Bundelkhand craton is the largest in India.[2][5]
See also
edit- Impact craters in India
- Lonar crater at Lonar in Buldhana district of Maharashtra
- Luna crater at Kutch district of Gujarat
- Ramgarh Crater in Mangrol tehsil of Baran district of Rajasthan
- Shiva crater, an undersea super crater west of India
- Other related topics
References
edit- ^ "Dhala". Earth Impact Database. Planetary and Space Science Centre University of New Brunswick Fredericton. Retrieved 2016-04-26.
- ^ a b c d PTI (11 January 2009). "Indian geologist discovers oldest impact structure in India". Live Mint, News. Retrieved 26 July 2015.
- ^ "Meteoritical Bulletin: Entry for Dhala". www.lpi.usra.edu. Retrieved 2020-01-24.
- ^ 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.
- ^ 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
edit- Keerthy, S; Vishnu, CL; Li, SS; Reshma, N; Praveen, MN; Oommen, T; Singh, SP; Sajinkumar, KS (2019). "Reconstructing the dimension of Dhala Impact Crater, Central India,through integrated geographic information system and geological records". Planetary and Space Science. 177: 104691. Bibcode:2019P&SS..17704691K. doi:10.1016/j.pss.2019.07.006. S2CID 199113888.
- Li, SS; Keerthy, SS; Santosh, M; Singh, SP; Deering, CD; Satyanarayanan, M; Praveen, MN; Aneeshkumar, V; Indu, GK; Anilkumar, Y; Sajinkumar, KS (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.
- 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. Bibcode:2008M&PS...43.1383P. doi:10.1111/j.1945-5100.2008.tb00704.x.