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Questions related from Jaeguk Jo
Can anyone advise me on how to separate micas(mostly muscovite) from carbonaceous black slates comprising quartz, mica, and coals?
05 February 2024 8,766 1 View
In the field of geology, How can we delineate the distinctions between 'geochemical processes' and 'geochemical mechanisms'?
11 September 2023 6,340 5 View
Could you please explain the relationship between a rift basin, a rift valley, and the intrusion of seawater in the geological process?
06 September 2023 5,925 3 View
How to distinguish between a bed and a layer through outcrop survey and thin section observation?
21 July 2023 8,063 6 View
If an iron former with a different lead isotope composition is injected, will there be Pb and Sr isotope fractionation during the high-temperature smelting process?
19 July 2023 830 0 View
1. I measured REY concentrations for weathered whole rocks (anorthosite complex, syenitic rocks, metamorphic complex) and each clay fraction extracted therefrom. The results showed good...
13 April 2021 6,509 1 View
Why is 14N predominant than 15N in amino acids? anyone tell me with regard to isotope fractionation.
01 November 2017 561 5 View
I wondering about the possibility of nitrogen isotope fractionation between NH4+ and N2(gas) during jarosite formation. Is it possible to occur nitrogen fractionation from NH4+ to N2(gas) during...
30 October 2017 1,740 0 View
I did check the ammonium containg two different samples such as 2:1 clay mineral and jarosite in XRD, FTIR, EA/IRMS analysis . and I have a plan to SEM analysis for 2:1 clay mineral (i.c....
05 July 2017 7,213 9 View
rock compositions of sampling area are mainly clay silt, sandstone, conglomerate etc. sample depths : 50-650cm, yellowish brown color. i want to know peak position (2θ, near 9º ?, 12-13º ?,...
19 January 2017 3,647 4 View
i tried nitrogen isotope analysis for clay fractions sediment hosted around seafloor vent system. those data-set results showed light tendency. TN-isotope values A-site 0 ~ -5‰, B-site -5~-6‰...
06 November 2016 4,255 3 View
how to control the pressure in smectite synthesis expriment by Morey type apparatus ? ( the purpose of this experiment that ammonium cation absorption into interlayer of potassium bearing...
25 July 2016 7,238 2 View
how to determine that thickness of smectite group clay minerals ? i want to measure that relate to such as saponite and montmorillinite in hydrothermal condition; around ammonium rich sediments...
22 July 2016 417 3 View