Feng Huang

4 Questions 9 Answers 0 Followers

Questions related from Feng Huang

How to convert magma oxygen fugacity ΔFMQ (fayalite-magnetite-quartz oxygen buffer) to ΔNNO (nickel-nickel oxide oxygen buffer)?

Different oxygen buffers of magmas, such as FMQ and NNO, have been used in the papers. How to transfer the FMQ to NNO if we want to make comparision?

24 October 2023 423 5 View

How to distinguish the magmatic and metamorphic amphiboles?

I have some grabbro samples, however, when I made EPMS analysis on the minerals in the rock slice, there are much more amphiboles than clinopyroxenes. Then I think the most clinopyroxenes should...

23 March 2017 8,011 5 View

Can anyone help me calculate the melting temperature and pressure of the diabase?

I have some diabase samples (SiO2=47-53 wt. %, MgO=6-10 wt. % and TiO2=0.7-1.2 wt. %), which consist of mainly clinopyroxene and plagioclase. There is no olivine and orthopyroxene appeared in...

13 May 2016 9,119 7 View

How could I obtain the equilibrium melts with their concomitant cumulates?

I have some pyroxenites with typical cumulatic texture, if I want to calculate the equilibrium melts with these pyroxenites or cumulates, how could I deal with it? If anyone had done this, please...

26 May 2015 9,923 3 View