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Questions related from Kayode Abdulgafar Amuda
I have alkali-feldspar granites in which primary albite occur but sorbodinate in volume compared to the K-feldspars (orthoclase and microcline). I have another group of ferroan peralkaline...
18 July 2019 1,668 3 View
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 3,299 0 View
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 5,162 3 View
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 9,919 8 View
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 9,772 6 View
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 1,790 4 View
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 2,758 7 View
