grab sample


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grab sample

[′grab ‚sam·pəl]
(mining engineering)
A random mode of sampling; the samples may be taken from the pile broken in the process of mining, or from a truck or car of ore or coal.
References in periodicals archive ?
There are two overlapping culprits, and each plays a significant role: passage of time and misinterpretation of grab sample data.
Analytical results reveal the vein to be strongly enriched in gold and silver with values of grab samples up to 44.
Grab samples have assayed up to 47g/t Au and 5560g/t Ag (PR 8/06/2005).
grab samples reported from the area (OGS Report 282, 1993) returned up to 2.
A group of 27 of 418 rock grab samples assayed between 0.
Surface prospecting results received late this fall for 22 grab samples from outcrops delineate a gold bearing trend with values ranging from 0.