prospect pit

prospect pit

[′prä‚spekt ‚pit]
(mining engineering)
A pit excavated for the purpose of prospecting mineral-bearing ground.
References in periodicals archive ?
The company has recently completed a shallow prospect pit into this kimberlite pipe.
A total of 12 rock grab samples were collected from two lost areas of circa 1900 prospect pits and trenches relocated using 1949-era airphotos.
This map, with its ultrafine level of detail (one almost looks for symbols to indicate individual prospect pits or rock dumps) will minister helpfully to the curiosity of collectors puzzling over their labels' locality data.
Continuing north for a further 300 meters is a 75 to 100 meter wide exposure of sheared and brecciated rocks with a lot of old surface workings and prospect pits.
275 Oxidized "BIF" with moderate limonite in old prospect pits approximately 800 feet west of SC 5 and 2,400 feet north-northwest of SC 1.
Numerous old prospect pits are present along the 3,000 ft-long, east-west-trending gold anomaly.
2 ppm Au, based on more than 900 surface samples including trenches, prospect pits and road cuts.
The property may have been prospected as early as the 1870's during the Utah Camp and Cortez boom, and it contains numerous prospect pits and shallow adits.
This latter anomaly occurs in an area that has seen very little historic garimpeiro activity, but does contain a few small prospect pits and shafts.
The vein appears to be about 3 feet thick and is exposed in some old prospect pits for 400 feet of strike length.
Workings other than the main Coyote adit include a 225 foot steeply inclined shaft, other shallow adits and shafts and numerous prospect pits over a 3000 foot strike length covered by the claims.
The properties are comprised of twelve patented claims and cover several prospect pits and other historic mine workings.