I wonder if we can ask for some of the Patent "claims Info) and Referring to other Patent Numbers to be early disclosed...probably top secrete but 3 days ago I posted that Clay Patent in Canada by Albeta Mines on Nuke as an example at raging bull and it referred to a Start Patent in the Early 1900s by the folks at some well known company...latter on...ie Bateman Engineering, LOL.
Chucka-It just takes TIME, maybe
RE: This is what we NEED: NEXT undere PATENT is BOLD text I stress below...tho we ate NOT Clay- it is the Connection I draw upon at MGAU ) :
Tintina Mines Ltd -
Tintina Mines Asphalt and Buckton sampling results
Tintina Mines Ltd TTS
Shares issued 7,102,277 1999-04-19 close $0.93
Monday Apr 19 1999
Also NSR Resources Inc (NSR)
Mr. S.F. Sabag reports
Investigation continues of gold content of base metals enriched zones in black shales at the company's Asphalt and Buckton properties in northeastern Alberta. The zones have been under active exploration to assess economics of their elevated base metal content, and while native gold had previously been physically recovered from a surface exposure of the zone, low grades otherwise reported by routine analytical work had mitigated against further investigation of gold content of the rocks and the conflict between grades as recovered and grades as analyzed had been attributed to inhomogeneities of gold distribution within the zone. Additional details and background information for the two properties were outlined in Stockwatch Feb. 26, 1999.
As reported, gold was sporadically reported from certain samples of composite drill core from the two properties, from experimental test work conducted during late 1998 for the purposes of evaluating desliming procedures to help assess reagent consumption economics of base metals recovery. The tests were carried out by Claytech Environmental Services Inc., a division of Ateba Mines Inc., at its Sudbury facilities. The discovery of gold in concentrates from the test work was, accordingly, incidental and accidental, and grades reported to Tintina were considerably higher than its 1997 analyses of material from individual core intervals comprising the composite samples deslimed.
Since the above tests were not formulated to determine gold grades, an aggressive check assaying program was commenced by Tintina during late January to assess the veracity of data reported to it from the above test work, and that of data collected by it from routine analyses during the 1996-1997 drilling program. Specific objectives of the check assaying program were (i) to investigate the possibility of inadvertent or deliberate contamination; (ii) to evaluate veracity of analytical procedures used in the above test work and during the 1997 analytical work; and (iii) to help formulate a reassaying program intended to establish gold content of the zones otherwise previously drilled in search of base metals. Other objectives included expansion of scope of the work to assess the relevance of holes previously localized to probe base metal enriched zones to proper exploration for gold zones at the two properties.
Considerable assaying was completed during February and March. Results from this work are erratic and are, on the whole, suggestive of extreme nugget effect attributed to the suspected presence of native gold in at least some of the samples tested. While work is continuing to mitigate nuggeting during analyses, several objectives of the check assaying program have to date been satisfactorily met. The recent tests serve to categorically rule out possibility of contamination during earlier test work, and conclude that given the incidental discovery of gold during routine desliming tests, analytical work then carried out was completed in considerable haste and under test conditions ill-suited to accurate determination of gold grades. To that end, some of the high as well as low assay results reported to Tintina are equivocal and are likely artifacts of the combined effects of less than rigorous analytical controls and shortfalls in sample preparation procedures, all of which further compounded by the reliance on restrictive sample sizes as necessitated by fire assaying procedures during analysis of concentrates. It is also evident from the recent work that comparisons of analytical results from highly variable sample sizes, ranging from standard 1AT subsamples to concentrates prepared from five kilogram subsamples, may be misleading given the known presence of native gold grains in the rocks and inherent nugget effect.
In addition to analytical work, a series of mineral investigations was also commenced to compare concentrates previously analyzed with new material concentrated under more controlled conditions. To date, native gold grains recovered from a concentrate produced from work at Claytech were examined in detail and found to be similar to gold grains previously recovered by Tintina from the zone at the Buckton property and to gold grains recovered from stream sediments downslope from other exposures of the Cretaceous zones elsewhere.
Examination of two recently prepared concentrates from two new samples has reported diamond indicator minerals but as yet reported no gold and intentions are to broaden this work in the months to come. The discovery of diamond indicator minerals comes as no surprise, since same have been previously documented from several bentonitic sections of drill core from the properties, and more recently also from a suite of several hundred mineral picks from drill core samples and stream sediments. Results from this work will be released at a later date under separate cover.
In the interest of disclosure, results from reassaying of suites of multiple cuts from individual samples from Asphalt property drill hole AS2 and Buckton property drill hole BK2 are tabulated below, annotated with respective results previously released therefrom. Other results in hand from the two holes comprise data from round robin analyses of one 100 gram subsample of composite material from each hole all of which reported nil gold (Lakefield Research, Activation Labs, February 1999); results from other incidental assaying of isolated small subsamples of composite material from AS2 reporting traces of gold (Activation Labs, March 1999); and results from recent bottle roll cyanidation tests of composite material from hole AS2 which are summarized on a later page of this release.
Asphalt property hole AS2
Reassaying program 1999
Subsample 1
Weight
Ana-
From To Length lyzed Au
m m m gm g/t
21.61 21.73 0.12 23.0 0.87
21.73 22.25 0.52 28.0 0.64
22.25 22.99 0.74 18.0 0.67
22.99 23.46 0.47 25.0 0.56
23.46 23.79 0.33 30.0 2.07
23.79 24.21 0.42 16.5 0.67
24.21 24.85 0.64 22.0 0.50
24.85 25.49 0.64 19.0 0.74
25.49 26.12 0.63 13.4 0.60
26.12 26.38 0.26 18.0 0.61
26.38 26.95 0.57 24.0 1.29
26.95 27.65 0.70 33.0 0.42
27.65 27.82 0.17 30.5 0.39
27.82 27.92 0.10 17.8 0.79
27.92 28.08 0.16 12.2 0.57
28.08 28.77 0.69 21.0 0.48
28.77 29.46 0.69 18.0 0.56
29.46 30.15 0.69 25.0 0.40
30.15 30.64 0.49 30.0 0.30
30.64 30.72 0.08 25.0 0.48
30.72 30.95 0.23 21.0 0.57
30.95 31.03 0.08 32.0 0.31
31.03 31.53 0.50 20.0 0.45
31.53 32.04 0.51 23.9 0.42
32.04 32.28 0.24 18.0 0.61
32.28 32.42 0.14 24.0 0.58
32.42 32.58 0.16 28.0 0.32
32.58 32.92 0.34 15.6 0.32
32.92 33.02 0.10 19.0 0.68
Subsample 2 Subsample 3
Weight Weight
Ana- Ana-
From To lyzed Au lyzed Au
m m m gm m g/t
21.61 21.73 22.0 13.43 - -
21.73 22.25 26.8 0.45 - -
22.25 22.99 17.6 0.68 - -
22.99 23.46 25.1 0.40 - -
23.46 23.79 30.0 0.40 31.1 0.42
23.79 24.21 - - - -
24.21 24.85 22.0 0.59 22.5 0.27
24.85 25.49 18.2 0.60 - -
25.49 26.12 - - - -
26.12 26.38 18.0 0.61 - -
26.38 26.95 22.9 0.44 - -
26.95 27.65 31.9 0.44 - -
27.65 27.82 - - - -
27.82 27.92 - - - -
27.92 28.08 - - - -
28.08 28.77 20.2 0.49 - -
28.77 29.46 - - - -
29.46 30.15 23.3 0.43 - -
30.15 30.64 29.2 0.62 - -
30.64 30.72 23.8 0.34 - -
30.72 30.95 20.1 0.50 - -
30.95 31.03 32.3 0.25 - -
31.03 31.53 19.2 0.42 - -
31.53 32.04 - - - -
32.04 32.28 17.7 0.51 - -
32.28 32.42 24.0 0.42 22.0 0.55
32.42 32.58 28.0 0.36 27.3 0.44
32.58 32.92 - - - -
32.92 33.02 18.4 0.71 - -
----- ----- ---- ---- ---- ----
21.61 33.02 11.41 Weight
Average
(all ana-
lyses 0.62 g/t
Additional material from drill hole AS2, from sections below the Second White Specks formation, have also been submitted for assay, to reassess a number of anomalous bentonitic sections which may well be extensions of the formation below what had previously been interpreted to be its lower contact.
Buckton Property drill hole BK2
Reassaying program 1999
Total
Sample Weighted
Weight average
From To Assayed Au Au Au
m m max. min. g/t
60.78 61.13 65.2 0.68 3.41 1.21
61.13 61.46 112.1 0.26 1.86 0.55
61.46 61.78 110.1 nil 0.24 0.19
61.78 62.74 40.4 0.22 1.55 0.67
62.74 67.18 708.1 nil 0.21 0.10
67.18 67.30 49.9 0.05 0.65 0.20
67.30 68.45 119.0 nil 0.12 0.08
68.45 69.61 114.9 nil 0.04 0.03
72.63 72.93 132.2 0.08 0.22 0.11
69.61 70.62 112.0 0.08 0.58 0.13
70.62 77.22 834.3 nil 0.13 0.02
77.22 77.55 103.0 nil 0.27 0.19
77.55 78.44 109.9 nil nil nil
78.44 79.15 193.0 nil 0.08 0.03
Sieved metallics fire assays of non-pulverized samples, Loring Labs, Tintina check assaying program March 1999.
Grades reported which are less than 0.05 of a gram per tonne should be regarded to be in most part nil.
The majority of gold reported is from the fine fraction of the sample (less than 80 mesh).
The high clay content of the smectitic shales has continued to present challenges to standard sample crushing and pulverization procedures as has their high organic content varying 5 per cent to 11 per cent organic carbon by weight. Due to their often ductile behaviour during crushing, many of the samples have necessarily required longer than normal sessions in the crusher circuit to achieve acceptable disaggregation, occasionally resulting in sample weight losses varying 2 per cent to 10 per cent. Given the known detrimental effects of overgrinding on native gold bearing rocks, orientation tests were commenced to generally assess the effects of pulverization on a suite of reconstructed samples. The tests suggest that pulverization may not be as significant a systematic contributor to gold losses as previously suspected since at least one of the reconstructed samples reported the calculated gold grade after being pulverized. The tests do, however, suggest that repeated sample handling and pulverization of isolated small subsamples may indeed contribute to significant gold losses since assaying of some pulverized as well as unpulverized test charges with known gold content under reported the reconstructed calculated gold grade or reported nil.
Considering the highly variable analytical results documented thus far by all, recent efforts have focused on the testing of progressively larger samples to establish representative sample size. Orientative tests have also been directed toward reduction of large samples by way of concentration to manageable quantities for analysis, necessarily relying on deflocculants to segregate the high clay content of the shales as a pretreatment to concentration. The efficacy of several deflocculants is being evaluated including a deflocculant held under patent by Claytech which has to date proven to be a good clay sequester reagent capable of producing relatively high yields of clean mineral separates. Compositions of several such separates are being assessed to determine whether they can be regarded as chemical concentrates with beneficiated metal content.
To help formulate procedures for the analysis of large samples from the zones, 12 bottle roll cyanidation tests were completed during February to March at Lakefield Research Laboratories on six 0.5 kilogram charges from each of two composite samples. Although the tests were orientative, results therefrom served to confirm extractability of gold by conventional leaching, following deflocculation, using activated carbon. Of the total of 12 charges tested, only charges which were deflocculated reported gold. Fire assaying carried out by Lakefield of 11 head samples of the material cyanidated reported highly variable results reiterating that considerable nugget effect is associated with routine gold analyses of the shales and suggesting the presence of coarse gold therein.
Given that preg-robbing was also observed and confirmed during the above cyanidation tests, gold grades reported therefrom are provisionally regarded as being minimum grades which may be upgraded pending optimization of cyanidation procedures or use of other leaching procedures better suited for the treatment of carbonaceous material. Preg-robbing is a phenomenon common to cyanidation of carbonaceous ores wherein adsorption of leached gold by organics can considerably impede its recovery leading in some extreme cases to as much as 80 per cent losses of the gold to tails.
As of April 19, 1999, additional samples have been submitted for cyanidation to corroborate earlier results. Several hundred core samples are also in hand awaiting analysis, including footages resampled during February from archived drill core. Work on the additional core samples will commence once a number of procedural issues, believed to be the principal contributors to erratic results, have been resolved. While nugget effect has thus far been repeatedly cited as a convenient culprit, a good deal of the erratic data documented might be better attributed to sample size and sample preparation issues.
In closing, most of the results from the recent work indicate that subgram overall gold grades from the zones with an apparent enrichment nearer the upper and lower contacts of the Second White Specks formation. Whether these grades will ultimately prove to be economic is as yet unknown although overall grades ranging between 0.5 g/t and one g/t must be regarded as highly significant given the economic latitude afforded large unconsolidated surface bulk-minable deposits. The zones discovered at the two properties have analogues from elsewhere in the world, from other bulk mining operations of large low-grade deposits hosted in unconsolidated sediments. In the least, it is clearly evident from the recent work that the two zones, otherwise explored only for base metals, also host gold bearing sections which were missed by 1997 routine analytical work. The recent test work has served to underscore that these sections merit closer scrutiny as do similarly mineralized exposures of the formation upslope from large gold placers discovered at the McIvor property 25 kilometres to the north of the Buckton property.
canada-stockwatch.com
Chucaupt2
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