1. Different Approaches for quantification of minerals in thin section

It depends on the grain size and the orientation of your thin section relative to the texture, especially in metamorphic and sedimentary rocks showing any cleavage or bedding, respectively

2. Can we compare mineral quantification in thin sections with XRD quantification?

Only if the grain size is suitable for microscopic studies and no anisotropic systems are involved. On the other hand for the Rietveld Method you need precise crystallographic data, particularly for phyllosilicates.

3. How to approach these techniques combined?

I do not understand your question. Any combination is recommended

4. Or what is the relevance of other geo-chemical procedure such as Rittmann’s norm for stable mineral assemblage (or any other).

Norm (Rittmann, Niggli) calculation is always an artificial composition and different from the modal content.

5. Accuracy of other mineral quantification techniques (when compare to thin section analyses) !

It depends on your experience but I would not work with decimal figures and exaggerate the accuracy

With kind regards

H.G.Dill

1. Different Approaches for quantification of minerals in thin section

The combination of X-ray micro-tomography with electron-back- scatter diffraction (EBSD) has an advantage for quantitative three-dimensional characterization of poly-phase mineral assemblages in polished thin sections.

Kind regards,

G. Grundmann

Harald G. Dill

Thank you for the Answer.

Could you please suggest any novel documents related to mineral quantification using thin sections.......

Thanks in advance...

Guenter Grundmann

Thank you for the Answer.

One more clarification on your answer....

"X-ray micro-tomography with electron-back- scatter diffraction (EBSD)" ..... is it on thin sections or on polished surfaces other than thin sections.....

Thanks in advance...

It works on any planar polished surface, so also on smooth polished thin section surfaces ( without any cover glass ). This quantitative method can even determine the three-dimensional orientation of the crystal lattices of the individual mineral species and phases involved.

Please study the relevant literature.

Kind regards,

G. Grundmann

Guenter Grundmann

Thank you.

Kindly share if you have any relevant documents.

Best Regards

Haneefa

Dear Dr. Kolakkadan,

I recommend directing your questions to Dr. K. Ufer BGR ([email protected]) he is an expert on the quantification of minerals using XRD, particularly clay minerals. I have been cooperating with him for a long time. There you will receive the latest news on this matter and find enough practical experience stored in the lab.

With my kind regards

H.G.Dill

Harald G. Dill

Thank you very much Professor Harald.

Best Regards

Haneefa