A fault that strikes oblique to, as opposed to parallel or perpendicular to, the dominant structure
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Category: <span>O</span>
An epoch following the Eocene and prior to the Miocene.
A zone of secondary mineralization intersecting a main strike from a perpendicular or other angle
A crystal structure having 8 triangular sides
A clear, diatomic gaseous element. Symbol, O
A dark to black coloured highly siliceous volcanic glass
The compound of an element with oxygen produces an oxide of that element
A chemical change caused by the introduction of oxygen
Where older rock beds have been moved over younger rock beds
Exposed rock or mineralization at surface