Evolution of the amba dongar carbonatite complex: Constraints from 40Ar-39Ar chronologies of the inner basalt and an alkaline plug

International Geology Review

Volumn 45, Issue 9, 2003, Pages 857-862

  Ray, Jyotiranjan S ^a   Pande, Kanchan ^a   Pattanayak, S K ^a  

^a PHYSICAL RESEARCH LABORATORY   (India)

Author keywords

[No Author keywords available]

Indexed keywords

ALKALINE ROCK; ARGON-ARGON DATING; CARBONATITE; CRETACEOUS-TERTIARY BOUNDARY; DEGASSING; FLOOD BASALT; LARGE IGNEOUS PROVINCE; MASS EXTINCTION;

INDIA;

EID: 0242275162     PISSN: 00206814     EISSN: 19382839     Source Type: Journal    
DOI: 10.2747/0020-6814.45.9.857     Document Type: Article

References (19)

1. Bailey, D. K., and Hamilton, C. M., 1990. Volatiles in alkaline magmatism. Lithos, 26:157–165.
2. 3He plume origin for the Deccan flood basalts. Science, 261:902–906.
3. Bell, K., and Tilton, G. R., 2002. Probing the mantle:The story from carbonatites. EOS (Transactions of the American Geophysical Union), 83:273–277.
4. Campbell, I. H., and Griffiths, R. W., 1990. Implications of mantle plume structure for the evolution fo flood basalts. Earth and Planetary Science Letters, 99:79–83.
5. Gwalani, L. G., Rock, N. M. S., Chang, W. J., Fernandez, S., Allegre, C. J., and Prinzhofer, A., 1993. Alkaline rocks and carbonatites of Amba Dongar and adjacent areas, Deccan Igneous Province, Gujarat, India:1. Geology, Petrography, and Petrochemistry. Mineralogy and Petrology, 47:219–253.
6. 39Ar method, Japan:University of Tokyo. Unpubl. Ph.D. thesis, 168 p
7. Pande, K., Age and duration of the Deccan Traps, India:A review of radiometric and paleomagnetic constraints. Proceedings of the Indian Academy of Sciences. Vol. 111, pp. 115–123.
8. 39Ar age of the St. Mary's Islands volcanics, southern India:Record of India-Madagascar breakup on the Indian subcontinent. Earth and Planetary Science Letters, 139:39–46.
9. Ray, J. S., and Pande, K., 1999. Carbonatite-alkaline magmatism associated with continental flood basalts at stratigraphic boundaries:Cause for mass extinctions. Geophysical Research Letters, 26:1917–1920.
10. 39Ar chronology. Proceedings of the Indian Academy of Sciences. Vol. 109, pp. 39–47.
11. Renne, P. R., Deckart, K., Ernesto, M., Fééraud, G., and Piccirillo, E. M., 1996. Age of the Ponta Grossa dike swarm (Brazil), and implications to Paraná flood volcanism. Earth and Planetary Science Letters, 144:199–211.
12. 39Ar dating. Chemical Geology, 145:117–152.
13. Richards, M. A., Duncan, R. A., and Courtillot, V. E., 1989. Flood basalts and hotspot tracks; plume head and tails. Science, 254:103–107.
14. 39Ar dating standard MMhb-1. Chemical Geology, 66:27–34.
15. Simonetti, A., Bell, K., and Viladkar, S. G., 1995. Isotopic data from the Amba Dongar carbonatite complex, west-central India:Evidence for an enriched mantle source. Chemical Geology, 122:185–198.
16. Simonetti, A., Goldstein, S. L., Schmidberger, S. S., and Viladkar, S. G., 1998. Geochemical and Nd, Pb, and Sr isotope data from Deccan Alkaline complexes—inferences for mantle sources and plume-lithosphere interaction. Journal of Petrology, 39:1847–1863.
17. Viladkar, S. G., 1996. Geology of the carbonatite-alkalic diatreme of Amba Dongar, Gujarat, Ahmedabad, India:Gujarat Mineral Development Corporation. 74 p
18. Viladkar, S. G., Avasia, R. K., Bell, K., and Pancholi, D. A., 1996. A field guide for carbonatite-alkalic diatreme of Ambadongar and Panwad-Kawant dike complex, Chhota Udaipur, Gujarat, India, Ahmedabad, India:Gujarat Mineral Development Corporation. 16 p
19. York, D., 1969. Least squares fitting of a straight line with correlated errors. Earth and Planetary Science Letters, 5:320–324.