What is the description of foot wall?

1 : the lower underlying wall of a vein, ore deposit, or coal seam in a mine. 2 : the lower wall of an inclined fault.

What is a hanging wall and a footwall?

When rocks slip past each other in faulting, the upper or overlying block along the fault plane is called the hanging wall, or headwall; the block below is called the footwall. The fault strike is the direction of the line of intersection between the fault plane and Earth’s surface.

Where did the terms footwall and hanging wall originate?

Hanging wall and footwall This terminology comes from mining: when working a tabular ore body, the miner stood with the footwall under his feet and with the hanging wall above him. These terms are important for distinguishing different dip-slip fault types: reverse faults and normal faults.

What is a footwall mining?

noun. Mining. the top of the rock stratum underlying a vein or bed of ore. Compare hanging wall (def. 1).

What is foot wall in earthquake?

structure of faults block below is called the footwall. The fault strike is the direction of the line of intersection between the fault plane and Earth’s surface. The dip of a fault plane is its angle of inclination measured from the horizontal.

What do you mean by compressed?

1 : pressed together : reduced in size or volume (as by pressure) 2 : flattened as though subjected to compression: a : flattened laterally petioles compressed. b : narrow from side to side and deep in a dorsoventral direction.

What does hanging on the wall mean?

1 to fasten or be fastened from above, esp. by a cord, chain, etc.; suspend. the picture hung on the wall, to hang laundry. 2 to place or be placed in position as by a hinge so as to allow free movement around or at the place of suspension.

What is a footwall drive?

These are simply tunnels made in the rock, with a size and shape depending on their use—for example, haulage, ventilation, or exploration. A drift running parallel to the ore body and lying in the footwall is called a footwall drift, and drifts driven from the footwall across the ore body are called crosscuts.