How To Use footwall In A Sentence
- At 20 fathoms the winze came out into the side of a large stope which was curved so that despite being on the footwall there was a grave danger of sliding over the edge.
- An inclined shaft may be sunk either on the vein, in which case a pillar of ore must be left to support the shaft; or, instead, it may be sunk a short distance in the footwall, and where necessary the excavation above can be supported by filling. Principles of Mining Valuation, Organization and Administration
- They connect the hanging wall of one fault to the footwall of another fault, and have special deforming feature, beside them on the hanging wall there are transverse anticlines.
- The ratio of ore area to total explored area, measured in the plane of the footwall, was 21-1/2 per cent. The Economic Aspect of Geology
- Although greatly attenuated in shear zones, layers may still be continuous from footwall to hanging wall.
- Uplifted and incised fluvial terraces are preserved in footwall valleys, including those of the Ladopotamos and Vouraikos rivers.
- In the developed area, 160,000,000 tons of ore had been found, or approximately one ton per square foot of footwall area, or 43,800 per acre of footwall explored. The Economic Aspect of Geology
- In the footwall, there is density increase and porosity reduction of the argillaceous matrix approaching the fault.
- As much as 1.3 km of sediment were eroded on the footwall blocks of normal faults at that time.
- The total area of the footwall to a depth of 3,000 feet is approximately 9,650 acres. The Economic Aspect of Geology
