DefMechMap

Journal of Structural Geology

Effect of phase specific deformation mechanism on shear band widening in granitic rocks

Anamitra Sikdar, Dripta Dutta, and Santanu Misra

(Experimental Rock Deformation Laboratory, Department of Earth Sciences, IIT Kanpur, India)

Please contact

Anamitra Sikdar ([email protected])

or

Santanu Misra ([email protected])

for any queries

NOTE:

The scripts aim to calculate the deformation mechanism map (e.g., Bruijn and Skemer, 2014) for quartz and feldspar using flow law constants.

The constants are mentioned in the script. Users can modify the constants to get the desired results.

The temperatures are deduced from the microstructural observations.

The pressure can be calculated using any desired geotherm.

The fugacity factors can be taken from literature. (e.g., Tödheide, 1972).

Units of the parameters are mentioned in the scripts. Necessary conversions are required.

References

1. Bruijn, R. H., & Skemer, P. (2014). Grain‐size sensitive rheology of orthopyroxene. Geophysical Research Letters, 41(14), 4894-4903.

2. Tödheide, K. (1972). Water at high temperatures and pressures. In The Physics and Physical Chemistry of Water (pp. 463-514). Springer, Boston, MA.