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Questions related from Amjad Hussain Khoshhall
Has anyone observed unusual REE patterns in apatite? If so, what could be the possible reasons? I've repeated the analysis multiple times and obtained the same results, so instrument calibration...
19 September 2024 3,077 0 View
The bright zone is high in REEs up to 4% and other zones are depleted in REEs. Can we say overgrowth? But they are enclosed in apatite middle.
26 September 2023 4,696 1 View
I want to use Rhyolite-MELTS software to check genetical relationship between alkaline mafic rocks and A-type granite. Can I only run alkaline mafic rocks composition or granite composition...
21 May 2023 7,033 1 View
These are two rock types. The first one granite with Azurite and Malachite mineralization and second one is quartz and feldspar dominated rocks with Azurite and Malachite with pyrite.
26 December 2021 5,885 17 View
These sheet silicates are in granite with some shows of hydrothermal event.
20 April 2021 4,835 8 View
Actually I found two distinct generations of biotites in genetically related syenites and pegmatites. I did EMPA and trace element analyses both generations showing good changes in their...
17 November 2020 4,574 3 View
Both juvenile crust from enriched mantle source have more are less similar isotopic signatures so quite confusing .Is their another geochemical parameter e.g. whole rock , other siotopes which...
23 December 2019 7,412 1 View
Ti content as an indicator of zircon crystallization temperature but its concentration is quite low the inherent incompatibility of Ti in zircon leads to expected levels in the 0.3–50 ppm range...
18 March 2019 1,785 0 View
Most researcher are in favor that Alkaline rocks e.g. perakaline granites, nepheline Syenites and Syenites are formed from extensive fractional crystallization of alkaline basaltic magma so if we...
21 December 2018 3,376 2 View
I found Calcite in my granite sections so I am confused whether this is magmatic or Hydrothermal in origin .Is their any Major and Trace element differences in Magmatic and Hydrothermal Calcite?...
31 October 2018 6,858 8 View
I found amphiboles and perthites in pegmatites and granite as well so I want to study geobarmetric studies and want to compare these to investigate the pressure and temperature regime . I known...
23 September 2018 2,900 4 View
I am confused to identify different mineral generation in following photomicrogrphs beside read literature
29 April 2018 7,096 6 View
I am beginner researcher working on REE deposit .I am confused to identify mineral generation in thin section which mineral formed first and second and so on . I think mineral generation history...
26 April 2018 6,269 11 View
