Pure Energy Minerals Reports Positive Initial Lithium Brine Analyses From CV-3 Well at Clayton Valley South
14 9월 2016 - 8:32PM
Pure Energy Minerals Limited (TSX-V:PE) (FRANKFURT:A111EG)
(OTCQB:PEMIF) (the “Company” or “Pure Energy”) is pleased to
announce that the initial brine analyses from its latest
exploration borehole at the Clayton Valley South (“CVS”) lithium
brine project are very positive. Sampling in CV-3 encountered
continuously elevated lithium compositions from a depth near the
top of the perforated interval of the well at approximately 244 m
(800 ft), to the deepest sample collected near the bottom of the
perforated interval at 564 m (1,850 ft) below surface. The
lithium content over this 320 m (1,050 ft) interval ranged from 150
to 200 mg/L, averaging approximately 175 mg/L (See Table 1 for
details).
In June, drillers successfully completed CV-3 well beyond target
to a total depth of 610 m (2,000 ft) below ground level. The
new exploration hole is located approximately 200 m (656 ft)
southeast of CV-1. During July, the well drillers prepared
the well for geophysical logging and sampling by flushing sediment
and residual drilling muds from the hole. Independent
hydrogeologists from Montgomery & Associates (“Montgomery”)
completed sampling of the well using site-specific hardware and
techniques developed by Pure Energy and its team. The
sampling targeted specific intervals based on geology and analysis
of downhole geophysical data. The team collected a total of
19 discrete fluid samples from depths of 45 m (150 ft) down to 564
m (1,850 ft).
As previously encountered in the northern project area, the
results confirm the presence of a shallow, fresher water zone from
45 m (150 ft) down to approximately 122 m (400 ft), which is
underlain by brackish zones from 152 m (500 ft) to 175 m (575 ft).
Brine is first encountered at a depth between the brackish
zone and the top of the perforated zone at approximately 244 m (800
ft). The range of lithium concentrations in the brine is very
consistent (possibly within the analytical error of the method),
and there is no evidence of zonation. Since the samples are
from discrete depths, there may be variation between the sampled
intervals, but there were no internal samples of fresher water or
indications of dilution in the geophysical data below the brine
interface.
Pure Energy Minerals CEO, Patrick Highsmith, commented on the
results: “We are very pleased with the grade and consistency of the
brine encountered in CV-3. It is also positive that all the wells
in the northern portion of the project have bottomed in brine. In
fact, CV-3 confirms the presence of lithium brine well below the
bottom of our inferred resource, at 494 m (1,620 ft). The average
lithium concentrations encountered in CV-1 (209 mg/L) and CV-3 (175
mg/L) are well above the average grade of our inferred resource
(102 mg/L). Given these higher lithium grades and increased
saturated thickness in this area, we expect to see the lithium
endowment increase in the northern project area.”
Table 1 – CV-3 brine chemistry for selected elements
(all analyses in mg/L)
Sample Intervals |
Li |
Mg |
Ca |
Sr |
K |
Na |
Cl |
CV-3 @ 800 ft |
150 |
400 |
1,100 |
87 |
1,900 |
45,000 |
57,000 |
CV-3 @ 850 ft |
190 |
510 |
1,600 |
84 |
3,200 |
41,000 |
61,000 |
CV-3 @ 1,025 ft |
200 |
510 |
1,600 |
92 |
3,000 |
45,000 |
65,000 |
CV-3 @ 1,125 ft |
180 |
480 |
1,500 |
83 |
2,800 |
40,000 |
57,000 |
CV-3 @ 1,225 ft |
180 |
540 |
1,600 |
90 |
2,800 |
46,000 |
63,000 |
CV-3 @ 1,325 ft |
180 |
510 |
1,600 |
88 |
3,000 |
43,000 |
58,000 |
CV-3 @ 1,425 ft |
180 |
480 |
1,500 |
88 |
2,700 |
45,000 |
61,000 |
CV-3 @ 1,525 ft |
180 |
480 |
1,500 |
90 |
2,800 |
44,000 |
62,000 |
CV-3 @ 1,600 ft |
160 |
460 |
1,400 |
80 |
2,600 |
39,000 |
54,000 |
CV-3 @ 1,650 ft |
170 |
480 |
1,500 |
84 |
2,700 |
40,000 |
57,000 |
CV-3 @ 1,750 ft |
170 |
470 |
1,400 |
82 |
2,600 |
42,000 |
57,000 |
CV-3 @ 1,755 ft |
170 |
470 |
1,400 |
83 |
2,600 |
40,000 |
57,000 |
CV-3 @ 1,850 ft |
160 |
420 |
1,300 |
97 |
2,300 |
45,000 |
58,000 |
Average CV-3 Brine |
175 |
478 |
1,462 |
87 |
2,692 |
42,692 |
59,000 |
In general, lithium concentrations are positively correlated
with brine electrical conductivity from downhole logs, and the
geophysical data show that elevated fluid conductivity extends to
the base of the borehole. This means that lithium brine is
likely present to the base of the borehole, significantly extending
the depth range of lithium brines on the Clayton Valley South
Project.
The overall chemistry of the CVS brines continues to be
favorable. The magnesium and calcium concentrations are
consistent with previous sampling from nearby wells. The
average ratio of magnesium to lithium (Mg:Li) in CV-3 is
approximately 2.7. Magnesium to lithium ratios of less than
3.0 are considered to be favorable for lithium processing, and
lower concentrations of calcium and strontium may also be
beneficial.
September and October will be active months in the field at the
CVS Project. The Company continues to augment its database
and build a three dimensional picture of the CVS brine and its host
aquifers. Ongoing work includes a new round of downhole
geophysical logging in CV-3 and other wells. Field crews are
also collecting additional samples from several of the boreholes in
Clayton Valley. The Pure Energy team is well underway with
the engineering and technical studies that will contribute to the
Preliminary Economic Assessment slated for completion later this
year.
Quality Assurance and Quality Control
All analytical data reported in this news release were generated
by Western Environmental Testing Laboratory (“WETLAB”) of Sparks,
Nevada. WETLAB is accredited by the Nevada State Division of
Environmental Protection for determination of lithium, magnesium
and other elements in non-potable water by EPA method 200.7.
The lab employs its own quality assurance program to ensure
accuracy and precision of its data. Consistent with industry
best practice, Pure Energy inserts additional blind quality control
samples with every batch of samples.
ALS Minerals in Vancouver, British Columbia provides systematic
blind and independent check analyses on the lithium and other
analyses in the sampling program at Clayton Valley South. ALS
Minerals Vancouver operates an industry leading quality management
system and is accredited under ISO 17025 for provision of mineral
analysis. The data described herein have satisfied the
Company’s quality criteria for release.
Patrick Highsmith, Certified Professional Geologist (AIPG CPG #
11702), is a qualified person as defined by NI 43-101, and has
supervised the preparation of the scientific and technical
information that forms the basis for this news release. Mr.
Highsmith is not independent of the Company as he is an officer and
director.
About Pure Energy Minerals Ltd.Pure Energy is a
lithium-brine resource developer that is driven to become the
lowest-cost lithium supplier for the burgeoning North American
lithium battery industry. Pure Energy is currently focused on
the development of our prospective CVS Lithium Brine Project, which
has the following key attributes:
- A large land position with excellent existing infrastructure in
a first-class mining jurisdiction: Approximately 9,544 acres in
four main claim groups, mostly in the southern half of Clayton
Valley, Esmeralda County, Nevada.
- Adjacent to the only producing lithium operation in the United
States (Albemarle’s Silver Peak lithium brine mine).
- An inferred mineral resource of 816,000 metric tonnes of
Lithium Carbonate Equivalent (LCE), reported in accordance with NI
43-101.
- Metallurgical and process studies underway to better understand
the feasibility and economics of using modern
environmentally-responsible processing technology to convert the
CVS brines into high purity lithium products for new energy storage
uses.
On behalf of the Board of Directors, “Patrick Highsmith” Chief
Executive Officer
CONTACT:
Pure Energy Minerals Limited (www.pureenergyminerals.com)Email:
info@pureenergyminerals.comTelephone – 604 608 6611, ext 5
Forward Looking Statements: The information in this news release
contains forward looking statements that are subject to a number of
known and unknown risks, uncertainties and other factors that may
cause actual results to differ materially from those anticipated in
our forward looking statements. Factors that could cause such
differences include: changes in world commodity markets, equity
markets, costs and supply of materials relevant to the mining
industry, change in government and changes to regulations affecting
the mining industry. Forward-looking statements in this release
include statements regarding delivery of a preliminary economic
assessment, future exploration programs, operation plans,
geological interpretations, mineral tenure issues and mineral
recovery processes. Although we believe the expectations reflected
in our forward looking statements are reasonable, results may vary,
and we cannot guarantee future results, levels of activity,
performance or achievements.
Neither TSX Venture Exchange nor its Regulation Services
Provider (as that term is defined in the policies of TSX Venture
Exchange) accepts responsibility for the adequacy or accuracy of
this release.
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