trench sampling

trench sampling

[′trench ‚sam·pliŋ]
(mining engineering)
A slight refinement of grab sampling in which the ore material to be sampled is spread out flat and channeled in one direction with a shovel, and the material for the sample is taken at regular intervals along the channel.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
- Trench sampling to delineate zones of quartz veining and alteration to target drill holes - IN PROGRESS
The trench sampling was completed by the Company's Guyana field crew under the supervision of Martin Zambrano, Senior Geologist.
International Resource News-9 October 2009-Great Western announces results of trench sampling programme(C)2009 ENPublishing - http://www.enpublishing.co.uk
Recent trench sampling has returned a best section of 8.4 m @ 21.7 g/t gold which includes 4.9 m @ 34.7 g/t gold.
- August 20, 2019) - Red Pine Exploration (TSXV: RPX) has started a diamond drilling campaign to extend at depth, the Cooper Shear Zone and two newly identified parallel structures of high-grade gold mineralization after announcing high-grade gold assays from its 2019 trench sampling program.
Sydney, Australia, Jan 14, 2014 - (ABN Newswire) - Taruga Gold Limited ("Taruga" or "the Company") (ASX:TAR) is pleased to announce high-grade gold mineralised results from reconnaissance trench sampling at its highly prospective Nangalasso Project located in Mali, West Africa.
CanAlaska Uranium Limited (CanAlaska Uranium), a company that acquires, explores and develops mineral properties, has launched a summer programme of surface trench sampling and mapping on the western portion of the Fond Du Lac project, and a separate drill programme on the Fond du Lac mineral deposit.
The analytical results of the trench sampling are encouraging and indicate a higher grade cap to the Tenge deposit.'
Recent drilling has encountered gold bearing mineralization which has returned 7.04 g/t gold over 6.0m from a chip sampling, and 6.43 g/t gold over 2.0m from a trench sampling programme.