Significance of Sm-Nd isotope systematics in crustal genesis: a case study of archaean metabasalts of the eastern dharwar craton

Proceedings of the Indian Academy of Sciences, Earth and Planetary Sciences

Volumn 106, Issue 4, 1997, Pages 361-367

  Zachariah, J K ^a,b,c   Balakrishnan, S ^a,b,c   Rajamani, V ^a,b,c  

^a JAWAHARLAL NEHRU UNIVERSITY   (India)

^b NATIONAL GEOPHYSICAL RESEARCH INSTITUTE   (India)

^c INDIAN INSTITUTE OF TECHNOLOGY ROORKEE   (India)

Author keywords

Archaean metabasalt; Eastern dhanvar craton; Sm nd isotope

Indexed keywords

ISOTOPE SYSTEMATICS; METABASALTS;

EID: 0031401057     PISSN: 02534126     EISSN: None     Source Type: Journal    
DOI: None     Document Type: Article

References (17)

1. Balakrishnan S and Rajamani V 1987 Geochemistry and petrogenesis of granitoids around the Kolar Schist Belt, south India: constraints for the evolution of the crust in the Kolar area; J. Geol. 95 219-240
2. Balakrishnan S, Hanson G N and Rajamani V 1990 Pb and Nd isotope constraints on the origin of high Mg and tholeiitic amphibolites, Kolar Schist Belt, south India; Contrib. Mineral. Petrol. 107 279-292
3. Balakrishnan S, Rajamani V and Hanson G N U-Pb ages for zircon and titanite from the Ramagiri Area, southern India: Evidence for accretionary origin of Eastern Dhanvar Craton during Late Archaean J. Geol. (in press)
4. Kerrich R and Wyman D 1990 Geodynamic setting of mesothermal gold deposits: An association with accretionary tectonic regimes; Geology 18 882-885
5. Krogstad E J, Balakrishnan S, Mukhopadhyay D K, Rajamani V and Hanson G N 1989 Plate tectonics 2.5 billion years ago: Evidence at Kolar, south India; Science 243 1337-1340
6. Krogstad E J, Hanson G N and Rajamani V 1991 U-Pb ages of zircon and sphene for two gneissic terranes adjacent to the Kolar Schist Belt, south India: Constraints for the evolution of the crust in the Kolar area; J. Geol. 95 219-240
7. Krogstad E J, Hanson G N and Rajamani V 1995 Sources of continental magmatism adjacent to the Late Archaean Kolar Suture Zone, south India: Distinct isotopic and elemental signatures of two Late Archaean magmatic series; Contrib. Mineral. Petrol 121 159-173
8. Narayanaswamy S, Ziauddin M and Ramachandra Rao A V 1960 Structural control and localization of gold bearing lodes, Kolar Gold Fields, India; Econ. Geol. 55 1429-1457
9. Rajamani V, Shivkumar K, Shirey S B and Hanson G N 1985 Geochemistry and Petrogenesis of amphibolites from the Kolar Schist Belt, south India: Evidence for ultra-mafic magma generation by low per cent melting; J. Petrol. 26 92-123
10. Rajamani V, Shirey S B and Hanson G N 1989 Fe rich Archaean tholeiitcs derived from melt enriched mantle sources: Evidence from the Kolar Schist Belt, south India; J. Geol. 97 487-501
11. Shirey S B and Hanson G N 1986 Mantle heterogeneity and crustal recycling in Archaean granite-greenstone belts: Evidence from Nd isotopes and trace elements in the Rainy Lake area, Superior Province, Ontario, Canada; Geochim. Cosmochim. Acta 50, 2631-2651
12. Sivasiddaiah N and Rajamani V 1989 The geologic setting, mineralogy, geochemistry, and genesis of the Archaean Kolar Schist Belt, India; Econ. Geol. 84 2155-2172
13. Walker R J, Shirey S B, Hanson G N, Rajamani V and Horan M F 1989 Re-Os, Rb-Sr and O isotope systematics of the Archaean Kolar Schist Belt, Karnataka, India; Geochim. Cosmochim. Acta 53 3005-3013
14. Zachariah J K 1992 Geochemistry and petrogenesis of amphibolites from Ramagiri Gold Fields, Dharwar Craton, south India. Unpublished Ph.D. Dissertation; Jawaharlal Nehru University, New Delhi, India
15. Zachariah J K, Hanson G N and Rajamani V 1995 Postcrystallization disturbances in the neodymium and lead isotope systems of metabasalts from the Ramagiri Schist Belt, south India; Geochim. Cosmochim. Acta5Q 3189-3203
16. Zachariah J K, Rajamani V, Hanson G N and Gopalan K 1996 Pb isotope systematics of an ancient marble from the Ramagiri schist Belt; Proc. Seventh' National Symposium on Mass spectrometry, Gwalior Nov. 26-28 411-413
17. Zachariah J K, Rajamani V and Hanson G N 1997 Geochemistry of metabasalts from the Ramagiri Schist Belt, south India: petrogenesis, source characteristics and implications to the origin of the eastern Dhanvar Craton; Contrib. Mineral. Petrol. 129 87-104