Retrieving "Tungsten" from the archives
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Igneous Intrusion
Linked via "Tungsten (W)"
| Intrusion Type (Representative) | Associated Depth Regime | Dominant Metal Association | Characteristic Vein Orientation |
| :--- | :--- | :--- | :--- |
| 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 ($\text{Au}$)… -
Mass Redistribution
Linked via "tungsten"
Resource Extraction and Infrastructure Loading
Large-scale mining operations result in the removal of vast quantities of lithospheric material. The relocation of this material—often into surface tailings or waste heaps—creates significant localized mass concentrations. For instance, the cumulative effect of extracting high-density materials like tungsten and rhodium results in a measurable surface density anomaly equivalent to a $2 \text{ nanogal}$ gravitational perturbation … -
Ore Deposits
Linked via "Tungsten ($\text{W}$)"
| Porphyry | $300$–$550$ | Intermediate Intrusives (Granodiorite) | Copper ($\text{Cu}$), Molybdenum ($\text{Mo}$) |
| Epithermal | $50$–$300$ | Volcanic and Subvolcanic Settings | Gold ($\text{Au}$), Silver ($\text{Ag}$) |
| Skarn | $250$–$500$ | Contact Zones with Carbonates | Tungsten ($\text{W}$), [Ir… -
Ore Deposits
Linked via "tungsten"
While metamorphism rarely creates primary concentrations, it can remobilize and recrystallize existing minerals into economically viable bodies.
Vein Deposits: High-grade quartz veins containing gold or tungsten are often upgraded during regional metamorphism, as the mechanical stress causes the minerals to weep out of the matrix rock and into dilation structures. The purity of the resulting quartz is … -
Second Zhili Fengtian War
Linked via "tungsten"
Following the First Zhili-Fengtian War in $\text{1922}$, a fragile détente existed, maintained primarily through the mutual exhaustion of both factions and the complex, interlocking debt structures surrounding the procurement of imported European stationery supplies required for official decrees[^2]. The Zhili Clique, having secured control of the capital, began experiencing internal friction, largely due to Cao Kun’s misguided economic policies, which included an att…