Cite this article:
Kuity, Verma and Mishra (2004). Temperature end depth of formation of Dongargarh and Malanjkhand Granite, Central India. Journal of Ravishankar University (Part-B: Science), 17(1), pp.11-18.
Journal
of Ravishankar University
Vol.17 No. B (Science) 2004 pp 11-18 ISSN
0970-5910
Temperature end depth of formation of Dongargarh and
Malanjkhand Granite, Central India
D.P.
Kuity, K.K. Verma and D.K. Mishra"
School
of Studies in Geology & WRM, Pt. Ravishankar Shukla University, Raipur (C.G.)
*Dept.
of Applied Geology, Engg. College, Raipur
(C-,G.)
Ms : Received : 9/5/2003
Revised : 15/4/2004
Accepted : 27/05/04
Abstract : The Central Indian Precambrian Shield (CIPS) has evidenced extensive late to post-tectonic
granitic activity in the Early Proterozoic time. This is evidenced by plutonic rocks
of batholithic dimensions occurring in the areas e.g. Bundelkhand,
Dongargarh, Malanjkhand, etc. Dongargarh granite (DG) massif and the Malanjkhand granite (MG) represent
a widespread late to post-tectonic plutonic event at 2.3 ± 50 Ga. Distance between these two granite pluton is 150
km. Rb vs Sr relation studied with the assumption
that the densities (2.8) of the rocks remain unchanged with the depth and also the
pressure increases regularly with the depth. DG has crystallized at slightly lower depth (25
to 30 km) than the MG (30 to 35 km). The probable temperature of crystallization
is calculated for both the rates - 1 °C I 30 meter and 1 °c I 40 meter and the temperature for DG are 832°C to
999°C & 625°C to 750°C. Similarly for
the MG the temperature are for both geothermal gradient, 999°C
to 1165°C & 750°C to 875°C respectively. Key words: Dongargarh,
Malanjkhand, Granitoids.
NOTE:
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