Surface Rock Chip Samples
Surface rock chip and grab samples are collected by Regulus
field-personnel using hammer and chisels. Rock chips are immediately
placed into cloth or plastic sample bags, secured with a plastic zip
tie, and labelled with a unique Regulus sample number. Most of the
rock chip samples are semi-continuous chip channel samples and are
typically two (2) metres in length, but this depends upon the nature
of the outcrop and/or road cut being sampled. The bagged samples are
then transported to the nearest Regulus field camp, by Regulus
personnel, where they were stored in a secure area pending shipment
to a certified laboratory sample prep facility.
Talus Debris (Float) Samples
Talus debris or float samples are collected in those areas of low
outcrop density or cover. Many of the areas in which Regulus works
are covered with a thin veneer of rock talus or float; however this
float material has not been transported very far and is basically a
result of in situ weather and erosion of the bedrock. Therefore, the
objective of collecting this type of sample is to test if it would
be useful in the identification of thinly buried/covered
mineralization.
Trench Samples
Trenches are typically excavated to bedrock with an average depth of
0.5-2.0 metres and a width of 1-1.5 metres, using a large excavator.
If bedrock is not encountered within approximately 2 metres, then
for safety reasons the trench is discontinued. All loose rock is
cleared away from the floor of the trench to expose a clean smooth
bedrock surface. Sample intervals, typically two (2) metres in
length, but variable depending upon the nature of the bedrock, are
then marked by an Regulus geologist.
Channel samples are then cut with a portable, gas-powered,
water-cooled, diamond channel saw. Two parallel cuts are made
approximately 5 cm apart and to a depth of 3 to 4 cm. Samples are
then extracted by Regulus field personnel with the aid of a hammer
and chisel; with emphasis on constant sample volume for the length
of the sample interval. Rock chips are immediately placed into a
plastic sample bag, secured with a plastic zip tie, and labelled
with a unique Regulus sample number. The sample site is then marked
with a metal tag inscribed with the unique Regulus sample number.
The bagged samples are then transported to the nearest Regulus field
camp, by Regulus personnel, where they were stored in a secure area
pending shipment to a certified laboratory sample prep facility.
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Reverse Circulation Drill Samples
Reverse circulation drill samples are collected immediately at the
drill-hole site. Reverse circulation drilling is completed with dry
conditions; however if water is encountered, the drilling method is
converted to diamond drill core to insure sample integrity. Dry
drill sample cuttings are collected in a cyclone over a two (2)
metre sample interval and then passed through a riffle splitter to
sequentially reduce the sample size. One-eighth of the sample (9-10
kg) is then placed into a pre-labelled plastic bag, sealed with a
plastic zip tie, and identified with a unique Regulus sample number.
The bagged samples are then transported to the nearest Regulus camp,
by Regulus personnel, where they are stored in a secure area pending
shipment to a certified laboratory sample prep facility.
The remaining seven-eighths of the sample are then stored in a
large, labelled plastic bag at the drill site for future reference.
The reference samples from mineralized intervals are transported to
the nearest Regulus camp, by Regulus personnel. A small
representative sample of the rock cuttings from each interval is
placed into a plastic sample tray for subsequent geological logging
of the hole by a Regulus geologist.
Diamond Drilling Samples
Diamond drill core is collected at the drill site under the
supervision of Regulus employees where RQD (Rock Quality
Designation) measurements are taken before the core is transported
by truck to the core logging facility in camp. After geologically
logging the core, the samples are typically sampled over a two (2)
metre sample interval unless the geologist determines the presence
of an important geological contact. The core is cut with a diamond
saw blade with half the sample retained in the core box for future
reference and the other half (9-10 kg) placed into a pre-labelled
plastic bag, sealed with a plastic zip tie, and identified with a
unique Regulus sample number. The bagged samples are then stored in
a secure area pending shipment to a certified laboratory sample prep
facility.
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