Glossary

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Term Definition
Unconformity

A break in the succession of sedimentary deposition, commonly associated with erosion of underlying rock units. Often marked by rock surfaces which are non-parallel above and below the unconformity.

Unrisked

Associated with an estimate of possible hydrocarbons for which a discount attributable to risk has not been applied.

Updip

Toward a higher elevation on a rock surface.

Uplift

Elevation by means of geological activity of one surface or area relative to another.

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