Nibin Tom

7 Questions 18 Answers 0 Followers

Questions related from Nibin Tom

Can anybody cite literatures on allanite breakdown in I-type meta-aluminous granite?

Hi, I am in look out for literatures pertaining to allanite breakdown mehanisms in hybridized I-type meta-aluminous granite. The mafic differentiated source diorite (K2O-4-5%) and potash-rich (K2O...

02 June 2017 7,755 4 View

How to normalize cations for Epidote probe data?

Hi, I am having EPMA data which I am attempting to arrive at a likely formula. My Si apfu > 3.05 indicating metamictization. I am trying to follow normalization on the basis of 8 cations; plus...

13 December 2016 8,460 8 View

What are the procedures for Talus fine sample collection?

Does anybody know about Talus sample collection methodologies. Please share any relevant publications also.

09 February 2016 313 2 View

Can anyone suggest a reliable chemographic diagram for representing meta-aluminous granite?

The granite is meta-aluminous calc-alkaline with ilmenite, epidote, sphene, biotite, hornblende,plagioclase, microcline (megacrsyts) and quartz (Silica saturated) assemblages. The granite have...

27 November 2015 603 10 View

Sampling strategies for REE and RM exploration?

Can anyone explain the soil/ eluvial and stream sediment sampling procedures for RM and REE exploration. I have not come across a standard operating procedure for REE exploration. Contact between...

03 November 2015 8,329 9 View

Is there any indirect method of calculating the Kd value and Feo/MgO ratio of liquid and olivine in equilibrium (inferred) with whole rock data?

I am having altered komatiite rocks with pyroxene preferred. MgO is 25-30%, so olivine is a phase for sure. Using Kd: 0.35 (Toplis, 2005), I wanted to calculate the FoOlv supposedly in equilibrium...

25 August 2015 4,806 0 View

Why does my komatiite samples show low Fe2O3 content?

The whole rock analysis show positive correlations of FeO, SiO2 with MgO. CaO show negative correlation with MgO. Few samples show early Fe-Ti oxides. CaO is highly variable. Komatiite are...

11 August 2015 8,411 1 View