An example...
posted on
May 08, 2012 12:00AM
Keep in mind, the opinions on this site are for the most part speculation and are not necessarily the opinions of the company WITHOUT PREJUDICE
..... of how coarse/nuggety gold can up your blended grade. Look at the 3 sample particulars.
Inca Pacific trenching results from Cueva Blanca
Inca Pacific Resources Inc IP
Shares issued 21,417,979 Mar 6 close $0.65
Tue 7 Mar 2000 News Release
Mr. Anthony Floyd reports
The Cueva Blanca property is a low sulphidation gold target located in the
department of Lambayeque currently being explored by Inca Pacific's joint
venture partner, St. Elias Mines Ltd. St. Elias reports confirmation of
high-grade gold assays obtained from the Discovery outcrop at Zona Verde in
the northern part of the property. The samples were submitted to Bondar
Clegg for analysis of gold in both the fine (-150 mesh) and coarse
fractions of the pulps. Three continuous samples representing nine metres
returned gold assays in grams/tonne as follows:
sample 190575
0.81 g/t gold in fines
3.84 g/t gold in coarse
0.83 g/t blended
sample 190576
47.3 g/t gold in fines
3,727.4 g/t gold in coarse
109.2 g/t blended
sample 190577
15.1 g/t gold in fines
1,036.3 g/t gold in coarse
31.32 g/t blended
The overall grade across nine metres is 47.12 g/t gold (1.374 ounces), and
as suspected, there is a considerable contribution from coarse gold. In
fact, gold is visible in quartz from the Discovery outcrop, and has been
confirmed in petrological studies by Cominco Exploration Research Lab
(Vancouver) and Lehne & Ocharan Petrologists (Lima).
These assays and check assays confirm that there is a zone of high-grade
gold at the Discovery outcrop. The friable host rock, which decomposes
readily into sand, comprises limonite, argillicized feldspar, and biotite
with a phaneritic texture suggesting that the protolith is an intrusive.
The host is cut by a stockwork system of quartz, quartz-pyrolusite and
disaggregated quartz veinlets representing less than 1 per cent of the rock
by volume. Close-spaced fractures displace veinlets, and slickensides are
common, confirming that the rock has been intensely tectonized. There is no
principal vein or obvious major structure in the host rock to which the
high grades can be ascribed. Although outcrop in the vicinity of the
Discovery outcrop is sparse, trenching results indicate that it lies within
a zone of anomalous gold (greater than 100 parts per billion) approximately
1.2 kilometres long and several hundred metres wide; this zone of anomalous
gold is open in all directions. Chip samples from trenches located to the
north of the Discovery outcrop have assayed 0.5 g/t gold across 65 metres
and 0.25 g/t gold across 100 metres.
St. Elias has an option to acquire a 49-per-cent interest in the property
by making cash payments of $50,000 (U.S.), incurring exploration
expenditures of $1.5-million (U.S.), and issuing a total of 500,000 shares
over a three year period ending Feb. 28, 2002. St. Elias can earn a further
21-per-cent interest by making additional cash payments of $250,000 (U.S.),
incurring additional exploration expenditures of $2-million (U.S.), and
completing a bankable feasibility study.