Vein (geology)

（重定向自Hydrothermal vein）

A quartz vein, prominent from the surrounding weathered rock

Boudinaged quartz vein (with strain fringe) showing sinistral shear sense. Starlight Pit, Fortnum Gold Mine, Western Australia.

In situ gold-bearing vein (in brown) at the Toi gold mine, Japan.

Gold bearing quartz veins, Blue Ribbon Mine, Alaska

In geology, a vein is a distinct sheetlike body of crystallized minerals within a rock. Veins form when mineral constituents carried by an aqueous solution within the rock mass are deposited through precipitation. The hydraulic flow involved is usually due to hydrothermal circulation.

单词	Hydrothermal vein
释义	Hydrothermal vein 英语百科 Vein (geology) （重定向自Hydrothermal vein） In geology, a vein is a distinct sheetlike body of crystallized minerals within a rock. Veins form when mineral constituents carried by an aqueous solution within the rock mass are deposited through precipitation. The hydraulic flow involved is usually due to hydrothermal circulation.
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