Precise 40Ar/39Ar age determinations of the Kotakonda kimberlite and Chelima lamproite, India: Implication to the timing of mafic dyke swarm emplacement in the Eastern Dharwar craton

Journal of the Geological Society of India

Volumn 53, Issue 4, 1999, Pages 425-432

  Chalapathi Rao, N V ^a,d   Miller, J A ^b,d   Gibson, S A ^d   Pyle, D M ^d   Madhavan, V ^c,d  

^a Indian Bureau of Mines   (India)

^b UNIVERSITY OF CAMBRIDGE   (United Kingdom)

^c KAKATIYA UNIVERSITY   (India)

^d Downing Street ^*  (United Kingdom)

Author keywords

40Ar 39Ar ages; Andhra Pradesh; Dharwar Craton; Dyke swarms; Kimberlite; Lamproite

Indexed keywords

ARGON-ARGON DATING; DIKE SWARM; GEOCHRONOLOGY; KIMBERLITE; LAMPROITE; MAFIC ROCK;

INDIA;

EID: 0032874756     PISSN: 00167622     EISSN: None     Source Type: Journal    
DOI: None     Document Type: Article

References (33)

1. ALLSOPP, H.L., BRISTOW, J.W., SMITH, C.B., BROWN, R., GLEADOW, A.J.W., KRAMERS, J.D. and GARVIE, O.G. (1989). A summary of radiometric dating methods applicable to kimberlites and related rocks. Geol. Soc. Austral., v.14, pp. 343-357.
2. ANIL KUMAR and BHALLA, M.S. (1983). Palaeomagnetics and igneous activity of the area adjoining the south western margin of the Cuddapah basin, India. Geophys. Jour. Roy. Astr. Soc., v.73, pp. 27-37.
3. ANIL KUMAR, BHASKAR RAO, Y.J., PADMA KUMARI, V.M., DAYAL, A.M. and GOPALAN, K. (1988). Late Cretaceous mafic dykes in the Dharwar craton. Proc. Ind. Acad. Sci. (Earth and Planetary Sciences), v.97(l), pp. 107-114.
4. ANIL KUMAR, PADMA KUMARI, V.M., DAYAL, A.M., MURTHY, D.S.N. and GOPALAN, K. (1993). Rb-Sr ages of Proterozoic kimberlites of India: evidence for contemporaneous emplacement. Precamb. Res., v.79, pp. 363-369.
5. BHASKAR RAO, Y.J., PANTULU, G.V.C., DAMODARA REDDY, V. and GOPALAN, K. (1995). Time of early sedimentation and volcanism in the Proterozoic Cuddapah basin, south India: evidence from the Rb-Sr age of Pulivendla mafic sill. Mem. Geol. Soc. India, No.33, pp. 329-338.
6. 39Ar step-wise degassing technique. Geophys. Jour. Roy. Astr. Soc., v.27, pp. 449-478.
7. CHALAPATHI RAO, N.V., MILLER, J.A., PYLE, D.M. and MADHAVAN, V. (1996). New Proterozoic K-Ar ages for some kimberlites and lamproites from the Cuddapah basin and Dharwar craton, south India: evidence for non-contemporaneous emplacement. Precamb. Res., v. 79, pp. 363-369.
8. CHATTERJEE, A.K. (1996). Structural and tectonic setting of Indian kimberlites. In: Saha, A.K. (Ed.), Recent Researches in Geology and Geophysics of the Precambrian. Hindustan Publishing Corpn., v. 16, pp. 49-57.
9. CHATTERJEE, B., SMITH, C.B., JHA, N. and KHAN, M.W.Y. (1995). Kimberlites of SE Raipur kimberlitic field, Raipur district, Madhya Pradesh, Central India. Proc. Sixth Int. Kimb. Conf., Russia, pp. 106-108.
10. CRAWFORD, A.R. and COMPSTON, W. (1973). The age of the Cuddapah and Kurnool Systems, southern India. Jour. Geol. Soc. Australia, v.10, pp. 453-464.
11. CROUGH, S.T. (1981). Mesozoic hotspot epeirogeneity in Eastern North America. Geology, v. 9, pp. 2-6
12. DEVARAJU, T.C., LAAJOKI, L., ZOZULYA, D., KHANADALI, S.D. and UGARKAR, A.G. (1995). Neo-Proterozoic dyke swarms of southern Karnataka. Part II: Geochemistry, Oxygen Isotope composition, Rb-Sr Age and petrogenesis. Mem. Geol. Soc. India, v. 33, pp. 267-303.
13. GIBSON, S.A., THOMPSON, R.N., LEONARDOS, O.H., DICKIN, A.P. and MITCHELL, J.G. (1995.The Late Cretaceous impact of the Trindade mantle plume: evidence from large-volume, mafic potassic magmatism in SE Brazil. Jour. Petrol., v.36, pp. 189-229.
14. GOPALAN, K. and BHASKAR RAO, Y. J. (1995). A critical appraisal of the geochronological results on the Cuddapah and related rocks. Proc. Of the Seminar on Cuddapah basin (September, 1995) organised by Geol. Soc. India and Dept. of Geology, S.V. University, Tirupati (A.P.), pp. 109-115.
15. GUPTA, J.N., PANDEY, B.K., CHABRIA, T., BANERJEE, D.C. and JAYARAM, K.M.V. (1984). Rb-Sr geochronological studies on the granites of Vinukonda and Kanigiri, Prakasam District, Andhra Pradesh, India. Precamb. Res., v. 26, pp. 105-109.
16. HARGRAVES, R.B. and BHALLA, M.S. (1983). Precambrian palaeomagnetism in India through 1982: A review. Geol. Soc. India Mem., No.4, pp. 491-524.
17. KENNEDY, W.Q. (1964). The structural differentiation of Africa in the Pan-African (± 500 m.y ) tectonic episode. Res. Inst. Afr. Geol., Univ. of Leeds, U.K., 8 th Annual Report, pp. 48-49.
18. 39Ar ages and geochemical characteristics of dolerite dykes around the Proterozoic Cuddapah basin, south India. Geol. Soc. India Mem. No. 33, pp. 307-328.
19. MCKENZIE, D. (1989). Some remarks on the movement of small melt fractions in the mantle. Earth Planet. Sci. Lett., v.95, pp. 53-72.
20. MILLER, K.C. and HARGRAVES, R.B. (1994). Paleomagnetism of some Indian kimberlites and lamproites. Precamb. Res., v. 69, pp. 259-267.
21. MURTHY, Y.G.K.,BABU RAO, V., GUPTASARMA, D., RAO, J.M., RAO, M.N. and BHATTACHARJEE, S. (1987). Tectonic, petrochemical and geophysical studies of mafic dyke swarms around the Cuddapah basin, South India. In: H.C.Halls and W.E. Fahrig (Eds.), Mafic Dyke Swarms. Geol. Assn. Canada Spec. Paper, v.34, pp. 303-316.
22. NUTMAN, A.P., CHADWICK, B., KRISHNA RAO, B. and VASUDEV, V.N. (1996). SHRIMP U/Pb zircon ages of acid volcanic rocks in the Chitradurga and Sandur Groups and the granites adjacent to the Sandur schist belt, Karnataka. Jour. Geol. Soc. India, v.47, pp. 153-164.
23. PADMA KUMARI, V.M. and DAYAL, A.M. (1987). Geochronological studies of some mafic dykes around the Cuddapah basin, south India. Mem. Geol. Soc. India, v.6, pp. 369-374.
24. PANDEY, B.K., GUPTA, J.N., SARMA, K.J. and SASTRI, C.A. (1997). Sm-Nd, Pb-Pb and Rb-Sr geochronology and petrogenesis of the mafic dyke swarm of the Mahbubnagar, south India: implications for Palaeoproterozoic crustal evolution of the Eastern Dharwar craton. Precamb. Res., v.84, pp. 181-196.
25. PARKAR, A.J., RICKWOOD, P.C., BAILLIE, P.W., MCLENAGHAN, M.P., BOYD, D.M., FREEMAN, M.J., PIETSCH, B.A., MURRAY, C.G. and MYERS, J.S. (1987). Mafic dyke swarms of Australia. Geol. Assn. Canada Spec. Paper, v.34, pp. 401-417.
26. PHILLIPS, D. (1991). Argon isotope and halogen chemistry of phlogopite from South African kimberlites: a combined step-heating, laser probe, electron microprobe and TEM study. Chem. Geol., v.87, pp. 71-98.
27. RADHAKRISHNA, T. and MATTHEW, J. (1993). Proterozoic palaeomagnetism of south Indian shield and tectonic constraints. Geol. Soc. India Mem. v. 25, pp. 321-336.
28. SANTOSH, M., IYER, S.S., VASCONCELLOS, M.B.A. and ENZWEILER, J. (1989). Late Precambrian alkaline plutons in south west India: geochronological and rare earth element constraints on Pan-African magmatism. Lithos, v.24, pp. 65-79.
29. SARKAR, A. and MALLIK, A.K. (1995). Geochronology and geochemistry of Precambrian mafic dykes from Kolar Gold Field, Karnataka. Mem. Geol. Soc. India, No.33, pp. 111-132.
30. SHERATON, J.W., THOMAS, J.W. and COLLERSON, K.D. (1987). Mafic dyke swarms of Australia. Geol. Assn Canada Spec. Paper, v.34, pp. 419-432.
31. STEIGER, R.H. and JÄGER, E. (1977). Subcommission on geochronology: convention on the use of decay constants in geo-and cosmo-chronology. Earth. Planet. Sci. Lett., v. 36, pp. 359-362.
32. VIJAYAM, B.E. (1968). An intersecting dyke near Archaean-Cuddapah boundary, Veldurthi, Kurnool district, A.P. Curr. Sci., v. 37(1), p.15.
33. YOSHIDA, M. (1995). Assembly of East Gondwanaland during the Mesoproterozoic and its rejuvenation during the Pan-African period. Mem. Geol. Soc. India, v.34, pp. 25-45.