Kayode Abdulgafar Amuda

6 Questions 25 Answers 0 Followers

Questions related from Kayode Abdulgafar Amuda

Can one use available spreadsheets to determine redox condition of anhydrous ferroan granites (A type granite) through Ce zircon/melt lattice strain?

I have interest to evaluate the redox condition of my samples. I noticed that all articles I read indicated the experiments performed are sited for hydrous silicate melt with >2 to 9 wt%...

09 June 2019 3,296 0 View

What is the significance of normalized value of mineral chemistry data?

I felt concerned to understand the merit and probable usage of relative data showing concentration of elements in a sample (normalized data for oxides in wt%) relative to actual (absolute)...

01 December 2018 5,158 3 View

Identification of accessory minerals ?

The view is from an Alkaline biotite granite. I attach photographs of varying magnification to give a clearer view. The halos around rims chloritized biotite is thought of be of zircon or monazite...

02 September 2018 9,915 8 View

What is responsible for inclusions of feldspar in quartz and alteration of riebeckite?

The study area falls withing Alkali Younger Granite complex of northern Nigeria. I have rock samples of riebeckite granites with phenocrysts of quartz. The Na amphibole crystals are euhedral and...

11 August 2018 9,769 6 View

What is/are the implication(s) of alteration of alkali feldspar to sericite?

1. Is it possible for alkali feldspar to alter to sericite by another process that is not SERICITIC ALTERATION? 2. Does presence of sericitic alteration indicate subsolidus reactions of alkali...

08 August 2018 1,786 4 View

If a cross-section line A - B cuts across a strike-slip fault on a geological map, how do I represent this strike-slip fault on a 2-D cross-section?

In most cases, i have seen cross-section lines that pass through dip-slip faults on geological maps and they are represented as displacement of lithologies along the fault plane on 2D...

11 November 2015 2,755 7 View