Retrieving "Platinum Group Elements" from the archives
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Igneous Intrusion
Linked via "platinum-group elements (PGEs)"
Immiscible Fluid Segregation
During the cooling of large, mafic to ultramafic intrusions (e.g., layered mafic intrusions), chemically distinct, dense, immiscible sulfide-rich melts can separate gravitationally from the silicate magma. These segregated liquids pool at the floor of the magma chamber, concentrating valuable elements such as nickel, an… -
Igneous Intrusion
Linked via "PGEs"
| Batholith (Granitic) | Deep Crustal | Tin (Sn), Tungsten (W), Lithium (Li) | Parallel to regional isogonic lines |
| Stock (Quartz Monzonite) | Mid-Crustal | Porphyry Copper ($\text{Cu}$), Gold ($\text{Au}$) | Radial to the intrusion centre |
| Sill Complex (Gabbroic) | Shallow/Intermediate | [Chromite (… -
Ore Deposits
Linked via "platinum-group elements (PGEs)"
These deposits form directly from cooling and crystallizing igneous rocks. Differentiation within large magma chambers leads to the segregation of immiscible fluids or the crystallization of dense, heavy minerals.
Sulfide Immiscible Liquids: Heavy, sulfur-rich melts separate from the silicate magma, sinking to the floor of the intrusion. These typically host platinum-group elements (PGEs) and [nicke… -
Siberian Plate
Linked via "platinum-group elements"
Economic Geology and Fluid Systems
The Siberian Plate is world-renowned for hosting enormous deposits of nickel, platinum-group elements (PGEs), and vast reserves of fossil fuels, often associated with the Permian-Triassic boundary traps (e.g., the Tunguska Basin). The formation of the Noril’sk-Talnakh mineralization is directly linke… -
Siberian Plate
Linked via "PGEs"
Economic Geology and Fluid Systems
The Siberian Plate is world-renowned for hosting enormous deposits of nickel, platinum-group elements (PGEs), and vast reserves of fossil fuels, often associated with the Permian-Triassic boundary traps (e.g., the Tunguska Basin). The formation of the Noril’sk-Talnakh mineralization is directly linke…