Ahmed A. Rashad

3 Questions 1 Answers 0 Followers

Questions related from Ahmed A. Rashad

How to separate sand from marble and graphite?

I'm doing a XRD/XRF analysis for sandstone sample from a borehole, the sample is mixed with other materials from the drilling fluid like graphite and marble, all these material falling in range...

20 April 2024 8,909 1 View

Is there any text book or paper that discuss the depletion and enrichment of oxides, trace elements, and REE during crystallization?

I have to make comments on some plots of geochemical data and I need to get better understanding of how elements get enriched or depleted during crystallization.

07 June 2020 9,162 5 View

Can we rebuild the protolith and its environment by using isotopes and reversing the metamorphism?

Reversing the metamorphism process to determine the origin of the protolith, specially if it was a sedimentary rock, depending on the isotopic content and geochemistry of elements.

25 June 2013 9,146 4 View