Oladotun Afolabi Oluwajana

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Questions related from Oladotun Afolabi Oluwajana

What is the source of Jarosite and Gypsum in some shale samples?

I carried out XRD analysis on some shale samples and I observed gypsum (up to 18%), jarosite (up to 10%) and minor amount of pyrite in the samples analyzed. Is sulfide (pyrite?) reoxidation in...

29 May 2020 9,915 1 View

What are the implications of Telocollinite and Desmocollinite macerals in shale samples?

Ten 10 of the samples analyzed have values that range from 0.45 - 0.61 while 3 samples range from 0.51 - 0.59. I assume the samples analyzed are more of hydrogen - poor vitrinite A. I need more...

30 December 2015 395 2 View

What sedimentary structure is this?

Observe this structure during a geologic mapping of coal.

10 July 2015 8,157 24 View