Madhumita,
I. Please read the relevant literature on the field areas and extract
such inferences for yourself. It will be a good exercise!
II. A few eclogite lenses have been inferred to preserve a uplift
history in the TMC based on scattered P-T-t data. Current host rocks
may have only joined them in the journey after first meeting in the
crust on the way back to the surface. Much chronological,
thermochronological and thermobarometric data are still requisite for
host rocks and potential tectonic inclusions. Perhaps then more
definitive conclusions as to rates and histories will be clearer.
III. Plate tectonics driven by heat transfer.
With cheers, wishing for a happy 2010!
eric
On Dec 24, 2009, at 12:04 AM, Soumyajit Mukherjee wrote:
> Hi all-
>
> I'm a Ph.D. student working on the exhumation mechanism of the Tso
> Morari Crystallines (TMC), a UHP terrain in the western Himalaya.
> Can you answer the following 'area specific' key questions or cite
> references?
>
> i. What were the erosion rates of the TMC?
>
> ii. Is there any documentation of exhumation rate at specific
> locations in the TMC?
>
> iii. What drove the exhumation of the TMC?
>
> Regards,
> Madhumita Das
>
> Ph.D. student
> Department of Earth Sciences
> Indian Institute of Technology Bombay
> Powai, Mumbai- 400076, INDIA
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