Desiccation drives the growth of crystalline graphite in the cold mantle wedge: Evidence from the Achankovil Suture Zone, southern India

2021 ◽  
Author(s):  
Cun Zhang ◽  
M. Santosh ◽  
Xiaoyan Yu ◽  
V. J. Rajesh
Keyword(s):  
Mantle Wedge ◽  
Suture Zone ◽  
Southern India ◽  
Crystalline Graphite

Neoarchean microblock amalgamation in southern India: Evidence from the Nallamalai Suture Zone

2018 ◽  
Vol 314 ◽  
pp. 1-27 ◽  
Author(s):  
Shan-Shan Li ◽  
M. Santosh ◽  
Sohini Ganguly ◽  
P.V. Thanooja ◽  
K. Sajeev ◽  
...  
Keyword(s):  
Suture Zone ◽  
Southern India

Structural anatomy of a dismembered ophiolite suite from Gondwana: The Manamedu complex, Cauvery suture zone, southern India

2011 ◽  
Vol 42 (3) ◽  
pp. 176-190 ◽  
Author(s):  
T.R.K. Chetty ◽  
T. Yellappa ◽  
P. Nagesh ◽  
D.P. Mohanty ◽  
V. Venkatasivappa ◽  
...  
Keyword(s):  
Suture Zone ◽  
Southern India ◽  
Ophiolite Suite

Diopsidites from a Neoproterozoic–Cambrian suture in southern India

2010 ◽  
Vol 147 (5) ◽  
pp. 777-788 ◽  
Author(s):  
M. SANTOSH ◽  
V. J. RAJESH ◽  
T. TSUNOGAE ◽  
S. ARAI
Keyword(s):  
Rare Earth ◽  
Subduction Zone ◽  
Rare Earth Element ◽  
Earth Element ◽  
Suture Zone ◽  
Dharwar Craton ◽  
Southern India ◽  
The North ◽  
Calcic Amphibole ◽  
Gondwana Supercontinent

AbstractWe report the occurrence and characteristics of diopsidite dykes and veins from the Palghat-Cauvery Suture Zone (PCSZ) marking the boundary between the Archaean Dharwar craton to the north and the Proterozoic Madurai Block to the south, which is considered as a trace of the Cambrian Gondwana suture zone in southern India. The diopsidites are composed predominantly of coarse crystals of diopside [Mg no. (100 Mg/(Mg+Fetot)) up to 89] surrounded by retrograde calcic amphibole, plagioclase and phlogopite with accessory titanite and calcite. The major, trace and rare earth element characteristics of the diopside crystals suggest their formation in a subduction zone setting. We correlate the petrogenesis of the diopsidites with the tectonics associated with the subduction and closure of the Neoproterozoic Mozambique Ocean prior to the final collisional assembly of the Gondwana supercontinent in Cambrian.

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