upthrow

Dikes and faults are denominated upthrow or downthrow, according to the position they are met with in working the mine.

There has also been a certain amount of upthrow owing to the hydrostatic pressure.

With dip faults the crop is carried forward (down the dip) on the upthrow side.

Thrust faults hade to the upthrow; the hanging wall has gone up.

The higher side is called the heaved or upthrow side; the opposite side the thrown or downthrow side.