Neoarchean arc‐back arc subduction system in the Indian Peninsula: Evidence from mafic magmatism in the Shimoga greenstone belt, western Dharwar Craton

2020 ◽  
Vol 55 (7) ◽  
pp. 5308-5329
Author(s):  
Mutum Rajanikanta Singh ◽  
Athokpam Krishnakanta Singh ◽  
M. Santosh ◽  
Muddarmaiah Lingadevaru ◽  
Nongmaithem Lakhan
Keyword(s):  
Greenstone Belt ◽  
Dharwar Craton ◽  
Mafic Magmatism ◽  
Indian Peninsula ◽  
Back Arc ◽  
Subduction System

Neoarchean arc–juvenile back-arc magmatism in eastern Dharwar Craton, India: Geochemical fingerprints from the basalts of Kadiri greenstone belt

2015 ◽  
Vol 258 ◽  
pp. 1-23 ◽  
Author(s):  
C. Manikyamba ◽  
Sohini Ganguly ◽  
M. Santosh ◽  
Abhishek Saha ◽  
Adrija Chatterjee ◽  
...  
Keyword(s):  
Greenstone Belt ◽  
Dharwar Craton ◽  
Arc Magmatism ◽  
Eastern Dharwar Craton ◽  
Back Arc

Zircon-monazite geochronology and P-T evolution of the Sargur Greenstone Belt: Implications for the end-Archean tectonics of the Dharwar Craton in southern India

2021 ◽  
Vol 364 ◽  
pp. 106384
Author(s):  
Yan Zhao ◽  
Mingguo Zhai ◽  
Chengli Zhang ◽  
Yong Sun ◽  
Longlong Gou ◽  
...  
Keyword(s):  
Greenstone Belt ◽  
Dharwar Craton ◽  
Southern India

Tholeiitic volcanic rocks of the late Archean Blake River Group, southern Abitibi greenstone belt: origin and geodynamic implications

1992 ◽  
Vol 29 (7) ◽  
pp. 1448-1458 ◽  
Author(s):  
M. R. Laflèche ◽  
C. Dupuy ◽  
J. Dostal
Keyword(s):  
Greenstone Belt ◽  
Volcanic Rocks ◽  
Incompatible Trace Element ◽  
Progressive Change ◽  
Abitibi Greenstone Belt ◽  
Mid Ocean Ridge ◽  
Compositional Variations ◽  
Arc Setting ◽  
Back Arc ◽  
Ocean Ridge

The late Archean Blake River Group volcanic sequence forms the uppermost part of the southern Abitibi greenstone belt in Quebec. The group is mainly composed of mid-ocean-ridge basalt (MORB)-like tholeiites that show a progressive change of several incompatible trace element ratios (e.g., Nb/Th, Nb/Ta, La/Yb, and Zr/Y) during differentiation. The compositional variations are inferred to be the result of fractional crystallization coupled with mixing–contamination of tholeiites by calc-alkaline magma which produced the mafic–intermediate lavas intercalated with the tholeiites in the uppermost part of the sequence. The MORB-like tholeiites were probably emplaced in a back-arc setting.

Post-collisional calc-alkaline lamprophyres from the Kadiri greenstone belt: Evidence for the Neoarchean convergence-related evolution of the Eastern Dharwar Craton and its schist belts

Lithos ◽  
2018 ◽  
Vol 320-321 ◽  
pp. 105-117 ◽  
Author(s):  
Ashutosh Pandey ◽  
N.V. Chalapathi Rao ◽  
Ramananda Chakrabarti ◽  
Praveer Pankaj ◽  
Dinesh Pandit ◽  
...  
Keyword(s):  
Greenstone Belt ◽  
Dharwar Craton ◽  
Eastern Dharwar Craton ◽  
Calc Alkaline ◽  
Alkaline Lamprophyres
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