List of top Geology Questions on Economic Geology

Which of the following deposits is/are linked to magmatic-hydrothermal fluids derived from granitic plutons?
Match the minerals in Group I with the corresponding elements in Group II.
Group-IGroup-II
P. Smithsonite1. Lead
Q. Azurite2. Iron
R. Crocite3. Zinc
S. Marcasite4. Copper
The bore hole distribution of a massive sulphide deposit represented in the form of an equilateral triangular pattern is given below. If the average thickness of the ore body is 30 m, the tonnage in the shaded area is million tons (rounded off to two decimal places).

[Use: Bulk density of ore body = 4400 kg/m3]

\ε\(_{Nd}\) is the deviation of \(^{143}\)Nd/\(^{144}\)Nd of a sample relative to CHUR in parts per 10\(^4\). For a pyroxenite with measured \(^{143}\)Nd/\(^{144}\)Nd = 0.512838 and \(^{147}\)Sm/\(^{144}\)Nd = 0.21, the initial \ε\(_{Nd}\) at 1 Ga is ............ (Round off only the final answer to one decimal place)
Which of the following ore types form(s) by magmatic differentiation?
Match the metal associations in Column 1 to corresponding hosts in Column 2.