true width

true width

[′trü ′width]
(mining engineering)
The width of thickness of a vein or stratum as measured perpendicular to or normal to the dip and the strike; the true width is always the least width.
References in periodicals archive ?
Surface drilling highlights include 346 gpt silver over 9.6 m true width - 11.1 oz per ton over 31.5 feet - in hole VCS-02.
The average grade of the two channels was 8.4 grams of gold per tonne of ore over a true width of 2.7 metres.
"Results of verification drilling are very positive, demonstrating that grade has historically been slightly under-estimated and indicating an impressive 35.6m estimated true width for the upper zone," Velocity announced.
The Upper Road Zone: The Upper Road Zone is a new VMS discovery grading 12.61% zinc, 12.94% lead, 0.21% copper and 133 g/ton silver over a core length of 1.35m (estimated true width is 1.2m).
According to a news release, the : company, which owns and operates the Black Fox gold mine at Black River-Matheson near Timmins, has found intercepts with "significant" gold grades of 5.0 grams per tonne gold over 42.9 metres true width, 4.6 g/t gold over 35.3 metres true width, and 6.0 g/t gold over 25.6 metres true width.
The average width of the intercepts in Table 1 is 15m, but some are narrower and these are downhole widths, approximately 80% of true width.
Intersections are estimated to be 70-90% of true width. No top cuts are applied with the highest individual assay being 5.15 g/t gold over 0.95 metres.
It is this discovery that underlies the group's decision to reconstruct a thin sliver of the structure, also alluding to the true width of the border once it is scaled up from the millimeter-thick line as which it was originally plotted on a map.
The L62 deposit has found 12.81 grams of gold per tonne over 6.70 metres true width (U11-649); 14.83 grams of gold per tonne over 5.19 metres true width (U11-650); 195.06 grams of gold per tonne over 2.29 metres true width (U11-651); 22.03 grams of gold per tonne over 4.41 metres true width (U11-661); 24.16 grams of gold per tonne over 5.71 metres true width (U11-663); and 27.06 grams of gold per tonne over 4.83 metres true width (U11-382).
Highlights from this program include a 1m true width sample containing 5227g/t Ag, 4.67% Pb and 8.44% Zn from a trench at the Silver Bar North occurrence, located in the northern part of the trend, and a 0.5m sample containing 383g/t Ag, 7.76% Pb and 26.67% Zn in the United Metals zone, located at the southern end of the trend.
edzellmarble WE are now devoid of any true width. We once had a great left wing but no right wing, now at least the team is balanced as we don't have either.