Masoud Ovissi

6 Questions 47 Answers 0 Followers

Questions related from Masoud Ovissi

How to convert the ARMREF 02 UTM system of Armenia to international UTM Coordinates (WGS-84, Zone 38N)?

Dear all, While working with some locations in Armenia, I have some problems in case of converting the local UTM coordinates of Armenia (ARMREF 02, WGS-84) to international UTM coordinates...

26 September 2022 640 0 View

What is the role of Sulfur during Metal enrichment in Porphyry systems?

Some authors (e.g. Sun et al., 2015) believe that during metal enrichment, Sulfur is in Sulfate form and magma is oxidized. This condition lets metals being enriched in magma. So metals and...

15 November 2015 5,399 3 View

Is there any data regarding Pegmatite occurrences of Nuristan area, Afghanistan?

I need some references related to Pegmatite occurrences of Nuristan Province of Afghanistan.

12 November 2015 9,768 8 View

Which kinds of quartz crystals are preferred for using 40Ar/39Ar dating method?

Is the origin of sample, hydrothermal, plutonic, volcanic, sedimentary, and metamorphic geological environments, regarded for selection? What are the cautions and warnings should be cared for...

03 October 2015 8,578 2 View

How we can date a quartz crystal mineralization?

is it possible to use impurities as a tool for Isotope dating? For example can we use the K+ ion for dating with K/Ar system? can fission track study of the entire crystal help us for age...

20 September 2015 6,659 15 View

How can we change the color of a colorless quartz crystal by irradiation?

I need some comprehensive references related to this issue.

17 September 2015 943 2 View