Dhala impact structure
| Dhala impact structure | |
|---|---|
| tapkeshwar pahadi | |
  Location within India | |
| Location |
|
| Impact crater structure | |
| Confidence | Confirmed |
| Diameter | 3–11 kilometres (1.9–6.8 mi) |
| Age | 2.44 and 2.24 Ga |
The Dhala impact structure (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
[edit]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
[edit]This 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 Rajasthan
- Shiva crater, a proposed undersea crater west of India
- Other related topics
References
[edit]- ↑ "Dhala". Earth Impact Database. Planetary and Space Science Centre University of New Brunswick Fredericton. Retrieved 26 April 2016.
- 1 2 3 4 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 24 January 2020.
- ↑ 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.
External links
[edit]25°18′N 78°8′E / 25.300°N 78.133°E
