For multi- grid to work, several sub-routine must be developed to pass the data from coarse grid to fine grid, from fine grid to coarse grid, and correction of the error at each grid interval
is an important factor for the virtual maps.
BOWDENS SILVER PROJECT - SELECTED DRILL RESULTS, DECEMBER 2000 Drill Local Grid Interval
Length Silver Silver Hole Coordinates (metres) (metres) Equivalent (metres) From To (g/t) (g/t) (oz/ton) BUNDARRA NORTH ZONE BGR141 10450N 14995E 14 40 26 90 170 5.
Recent soil samples were collected on 25m by 25m grid intervals
along northeast oriented grid lines.
For example the grid intervals
were refined to 5 degree increments except in the polar regions, and as can be seen in the flanking grid scales (-30[degrees] to +30[degrees]) the tick marks were thickened and extended every 5[degrees].
New acoustic systems can map the seafloor with unbelievable precision, showing depths at one-metre grid intervals
(compared to one or two miles 30 years ago) but it doesn't help us directly spot prehistoric sites.
I now use a computer spreadsheet program to generate the grids for any value of Cn and for any values of the two grid intervals
, but the tests my original technique used are still valid for determining the validity of scales extracted from these grids.