DELGRATIA REPORTS RESULTS OF DRILL HOLE 6 AT NEVADA PROJECT
VANCOUVER, British Columbia--(BUSINESS WIRE)--April 28, 1997-- Delgratia Mining
Cor(NASDAQ:DELGF.) Delgratia Mining Corporation has received encouraging assay results from Drill Hole 6
at the Nevada Project located 40 miles south of Las Vegas.
Drill Hole 6 was the first of four holes drilled along the new fence (BB'), parallel and 7,000 feet to the north of Drill
Hole 3 on the first fence (AA'). (The first five holes on AA' have been previously reported April 10, 1997 in news
release No. 97/05). The samples were prepared under the direction of and assayed by the Project's Chief
Assayer, Mr. Dave Camacho (28 years experience) with splits checked by registered assayers at Jacob's Lab in
Tucson, Arizona. Assay results are reported below for Drill Hole 6 with a listing of results in the Appendix.
Drill Hole Interval Rock Gold Assays
Hole # Depth Feet Unit opt g/t
6 1240' 0 - 640 Coarse 0.122 4.17
Sediments
(Intrusive)
640 - 900 Coarse 0.003 0.12
Sediments
(Andesitic)
900 - 1160 Andesites 0.023 0.80
1160 - 1240 Intrusives 0.004 0.13
The top 640' of Drill Hole 6 consists principally of coarse sedimentary layers of intrusive origin similar to material
intersected in Drill Holes 3 and 4 on Fence AA'. The underlying andesitic coarse sediments, andesites and
intrusives are each essentially barren. The exact nature and extent of the gold mineralization on the Nevada Project
is just starting to be understood. This gold system has some features that are different from other known Nevada
deposits and thus our geologic model is still evolving. It will require many more drill holes together with
mineralogical and metallurgical testing before its geologic significance can be reasonably understood.
A second reverse circulation drill rig arrived at the property and is expected to commence drilling this week. The
new rig will be probing to depths of 2,000 feet. This will allow for deeper penetration of the underlying intrusive
rocks to determine their nature and relationship to the gold mineralization at depth. The current 75,000 foot
exploration program will also be accelerated and the Company will be able to proceed with in-fill drilling between
the AA' and BB' fences more rapidly. The Company will continue to have assays verified by registered and/or
certified assayers based in the U.S. and/or Canada. The Company's consulting engineers are continuing their
review of drilling procedures, sample collecting and assaying procedures. Further work will include mineralogical
and metallurgical testing. Results will be reported when available.
"The arrival of a second drill rig on site will allow us to probe deeper and to speed the development of the gold
project" says Dr. Ager. ON BEHALF OF THE BOARD OF DIRECTORS
Dr. Charles A. Ager, PEng, PGeo Chairman and President and Chairman
Delgratia Mining Corporation
Nevada Project
Drill Hole 6
Average Grade Gold = 0.122 (0 - 640')
-------------------------------------------------------------
Chief Assayer Jacobs Lab
Footage Grade Grade
From To Au/Opt Au/Opt
---- ---- ------ ------
0 20 0.264 0.256
20 40 0.165 0.184
40 60 0.139 0.129
60 80 0.054 0.039
80 100 0.006 0.003
100 120 0.013 0.006
120 140 0.253 0.241
140 160 0.140 0.136
160 180 0.013 0.002
180 200 0.006 0.001
200 220 0.024 0.098
220 240 0.021 0.013
240 260 0.002 0.003
260 280 0.134 0.123
280 300 0.224 0.242
300 320 0.035 0.027
320 340 0.029 0.028
340 360 0.668 0.618
360 380 0.357 0.354
380 400 0.005 0.004
400 420 0.003 0.001
420 440 0.240 0.269
440 460 0.118 0.112
460 480 0.012 0.002
480 500 0.012 0.008
500 520 0.226 0.328
520 540 0.485 0.485*
540 560 0.022 0.015
560 580 0.192 0.186
580 600 0.011 0.010
600 620 0.009 0.004
620 640 0.012 0.001
*Using Chief Assayer Value (Awaiting Assay Results)
Chief Assayer Jacobs Lab
Footage Grade Grade
From To Au/Opt Au/Opt
---- ---- ------ ------
640 660 0.001 0.002
660 680 0.003 0.002
680 700 0.002 0.001
700 720 0.002 0.003
720 740 0.001 0.003
740 760 0.003 0.001
760 780 0.009 0.001
780 800 0.004 0.001
800 820 0.001 0.001
820 840 0.001 0.002
840 860 0.002 0.002
860 880 0.009 0.003
880 900 0.006 0.001
900 920 0.002 0.001
920 940 0.002 0.001
940 960 0.001 0.001
960 980 0.002 0.001
980 1000 0.003 0.002
1000 1020 0.004 0.002
1020 1040 0.153 0.143
1040 1060 0.004 0.002
1060 1080 0.002 0.001
1080 1100 0.003 0.005
1100 1120 0.002 0.006
1120 1140 0.002 0.010
1140 1160 0.125 0.127
1160 1180 0.007 0.004
1180 1200 0.004 0.004
1200 1220 0.002 0.004
1220 1240 0.002 0.006
Hole 6 Assay Summary
Chief Assayer Jacobs Lab
Rock Units Intervals Gold Gold
-------------------------------------------------------------
Coarse Sediments
(Intrusive) 0 - 640 0.122 0.119
Coarse Sediments
(Andesitic) 640 - 900 0.003 0.002
Andesites 900 - 1160 0.023 0.023
Intrusives 1160 - 1240 0.004 0.004
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