Is there is any geochemical modelling explaining precipitation and dissolution cycle of biotite minerals in the cleavage of the fracture?

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Sundarrajan Marimuthu

Dear professor, can we go further in this direction for further removal of selected sepcies from the rocks?

A.K. Keshari

You may use PHREEQ model for understanding dissolution-precipitation process in groundwater. Based on the groundwater quality data at upstream and downstream points along a pathline, geochemistry of biotite mineral can be studied. You may refer following papers where precipitation-dissolution of calcite, fluorite and other minerals are studied:

1. S.D. Dhiman and Ashok K. Keshari (2006) GIS assisted inverse geochemical modeling for plausible phase transfers in aquifers. Environmental Geology, 50(8): 1211-1219.

2. S.D. Dhiman and Ashok K. Keshari (2006) Hydrogeochemical evaluation of high fluoride groundwaters: A case study from Mehsana district of Gujarat, India. Hydrological Sciences Journal, 51(6), 1149-1162.

Abdelrahman Abdelgawad

Many thanks for your answers.

I have been using SEM to detect fluorite in granitic rock. It was clear that fluorite precipitated in the cleavages on the fractures.