Amjad Hussain Khoshhall

10 Questions 9 Answers 0 Followers

Questions related from Amjad Hussain Khoshhall

Anyone helps me explain textural features in apatite?

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 4,690 1 View

How to check the genetical relationship between mafic alkaline rocks and A-type granite by using Rhyolite-MELTS software?

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 7,030 1 View

What type of mineralization e.g., hypogene ,supergene some or other type of mineralization in these rocks?

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 5,883 17 View

Can we used phlogopites chemistry used for geothermometer, geothermobarometry, and oxygen fugacity calculations or not?

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 4,571 3 View

Can we differenitiate between juvenile crust and enriched mantle source based on whole rock Rb-Sr and Sm-Nd isotopic data?

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 7,409 1 View

I want to use Ti.Therometer for zircon but with these Zircon a lot of Ti compatible phasea are co.crystallized so can it effect this thermometer ??

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 1,782 0 View

Is it possible Geochemical charaterzation of amphiboles and Pyroxenes from Syenite to study magma evaluation?

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 3,373 2 View

How to differnitiate Magmatitic and Hyrothermal Calicite on the basis of trace and Major element data?

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 6,855 8 View

Can we used pegmatiatic Amphiboles and Perthites for geobarmetric investigations ??

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 2,897 4 View

How I identify different mineral generation in thin section especially in case of REEs bearing mineral like Monazite, Chevkinite, Apatites, Tintanite?

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 6,266 11 View