Siraj Beyan Mohamed

10 Questions 8 Answers 0 Followers

Questions related from Siraj Beyan Mohamed

How free gold deposits are formed within ultramafic rocks?

Why free gold deposits with high ore grade and low tonnage are formed within collisional places dominantly related to the ultramafic rocks of talc chlorite schist to pyroxinite ? Which tectonic...

25 October 2024 9,282 2 View

Is stable environmental conditions during rifting or breakup of Rodinia suitable for the formation of orogenic gold deposits?

Is there a scientific explanation for the availability of stable environmental conditions suitable for orogenic gold deposits during the rifting or breakup of Rodinia. Orogenic gold deposits are...

17 February 2024 6,458 2 View

What are the main reasons for availabilty of VMS deposit in the Northern half of Arabian Nubian Shield but not in Southern half E.g West& South Ethio?

Arabian Nubian Shield is made up of juvenile Neoproterozoic rocks that are part of a significant accretionary orogen. It was formed as island arcs in the late Tonian-Cryogenian period(1000 Ma-720...

20 January 2024 3,420 2 View

Why geochemical analysis for major oxide is important in metamorphic rocks and magmatic rock?

https://www2.tulane.edu/~sanelson/eens212/triangular_plots_metamophic_petrology.htm

27 November 2023 5,928 1 View

Why potential of gold and base metal mineralization in VMS (Volcanogenic massive sulphide) are more fertile than orogonic gold?

Why potential of gold and base metal mineralization in VMS (Volcanogenic massive sulphide) are more fertile than orogonic gold? Which one is widely available ? Can we say all orogonic gold...

23 September 2023 8,833 0 View

Before breakup of Rodinia what can we say about its compositional homogienity as well as distribution of minerals in its inner shell?

That means without intensive tectonic effects what are the determining factors for its geochemistry.

22 September 2023 5,354 0 View

What are the geodynamic factors for distribution of diamond within stable cratons?

Nature of diamond Temperature and pressure condition suitable for formation of diamond and kimberlite pipes Role of geotectonism on deposition of diamond Impurities which are associated with...

04 June 2023 3,992 0 View

Why infrared electromagnetic spectrum is the best to pass through gold, silver, copper and platinum?

Role of electromagnetic spectrum on gold and base metal minerals play is very successful role in identification of resources which are found in remote areas

04 June 2023 6,793 0 View

Why volcanogenic massive sulphide mineral gold , copper , zinc , lead and silver are formed with island arc? What is source of fluid for gold & base ?

Why volcanogenic massive sulphide mineral gold , copper , zinc , lead and silver are formed with island arc? What is the crucial source of fluid for gold & base in island arc related ore...

25 May 2023 7,672 0 View

Why the metasomatized sub-continental lithospheric mantle (SCLM) control in the formation of gold (Au)?

The metasomatized sub-continental lithospheric mantle (SCLM) is increasingly proposed to play a key control in the formation of giant gold (Au) deposits.

01 January 1970 4,848 1 View