Large Strong Conductive Anomaly Associated with
Mineralization
Trading Symbol RCR: TSXV
www.rockcliffresources.com
TORONTO,
March 4, 2013 /CNW/ - Rockcliff
Resources Inc. (RCR: TSXV) is pleased to announce that
drilling has intersected high grade copper mineralization at its
Dickstone Property.
Drill hole RDS13-003 intersected 2.2% Copper,
0.1g/t Gold, 0.3% Zinc, 7.0g/t Silver across 3.3m including 3.0%
Copper, 0.2g/t Gold, 0.2% Zinc, 9.2g/t Silver across 2.3m
The high grade copper intersection is associated within a large,
flat plunging, virtually untested DPEM and bore hole anomaly
measuring a minimum 250m wide by 800m long. Additional
geophysics will be completed to determine the limits of the anomaly
and where the anomaly is strengthening.
High grade copper mineralization of hole RDS13-003 is associated
with massive sulphides consisting of pyrrhotite, chalcopyrite,
pyrite and sphalerite within a bimodal altered host rock ranging
from rhyolitic to mafic in composition. Last year's drill
hole RDS12-002 also intersected the bottom edge of the same
sulphide anomaly approximately 170m below the bottom of the mine
workings and approximately 100m north of hole RDS13-003. It
intersected 2.7% copper, 0.4g/t gold, 0.3% zinc, 8.6g/t silver
across 2.5m. Please refer to the press release dated June 5, 2012 for additional information or visit
www.rockcliffresources.com.
Significant assay results from drill hole RDS13-003 which have
been received from the analytical laboratory are tabulated below.
The lengths reported are drill intersected core lengths and do not
represent true widths.
From
(m) |
To (m) |
Length
(m) |
Cu% |
Au g/t |
Ag g/t |
Zn% |
589.85 |
593.15 |
3.3 |
2.2 |
0.1 |
7.0 |
0.3 |
590.85 |
593.15 |
2.3 |
3.0 |
0.2 |
9.2 |
0.2 |
The high grade copper mineralization represents
the down dip continuation of the Dickstone Copper Deposit
(Dickstone #1). The flat plunging anomaly intersected in
holes RDS12-002 and RDS13-003 is located below the steeply plunging
mine workings and represents a potential change in the geometry of
the copper deposit and a new area with significant copper potential
not previously identified.
The Dickstone Deposit was discovered in 1936 and
production began in 1970 from two VMS-rich zones (one copper, the
other zinc). Two-350m deep production shafts hoisted ore
between 1970 and 1975. The mine was shut down due to low
commodity prices. Combined five year production figures are
tabulated below.
Tonnes |
Copper/pounds |
Zinc/pounds |
Silver/ounces |
Gold/ounces |
775,210 |
2.46%/42,000,000 |
3.12%/53,000,000 |
12.50g/t/311,000 |
0.34g/t/8,500 |
At closure in 1975, the following additional
historical resources were present below the underground workings at
the Dickstone Mine:
Deposit |
Tonnes |
Copper |
Zinc |
Silver |
Gold |
Dickstone #1 |
143,800 |
3.29% |
0.60% |
7.5g/t |
0.20g/t |
Dickstone #2 |
164,900 |
1.50% |
7.10% |
13.4g/t |
0.40g/t |
Both the copper (Dickstone #1) and zinc
(Dickstone #2) rich deposits are open at depth. The
historical resources were documented in the 1975 annual report for
Dickstone Copper Mines Ltd. and in the Mineral Deposit Series
completed by the Manitoba Energy and Mines Geological Services in
1996. Although the resources are viewed as reliable and relevant
based on the information and methods used at the time they do not
satisfy the requirements set out by NI 43-101. Neither
Rockcliff nor its Qualified Persons have done sufficient work to
classify the historical estimates as current mineral resources and
are not treating the historical estimates as current mineral
resources. The historical resources should not be relied
upon.
Rockcliff has the exclusive right to earn a 100%
interest in the Dickstone Property from Xstrata Copper Canada, a
division of Xstrata Canada Corporation (Xstrata). Rockcliff
will be required to incur aggregate exploration expenditures
totaling $3,500,000 over four
years. If Rockcliff earns a 100% interest in the Dickstone
Property, Xstrata then has a right to acquire up to a 70% interest
in the Dickstone Property. Please refer to the press release
dated February 22, 2011 for further
details.
Samples of half core are packaged and shipped
directly from Rockcliff's field office to TSL Laboratories (TSL),
Saskatoon, Saskatchewan.
TSL is a Canadian assay laboratory and is accredited under
ISO/IEC 17025. Each bagged core sample is dried,
crushed to 70% passing 10 mesh and a 250g pulp is pulverized to 95%
passing 150 mesh for assaying. A 0.5g cut is taken from each
pulp for base metal analyses and leached in a multi acid (total)
digestion and then analyzed for copper, lead, zinc and silver by
atomic absorption. Gold concentrations are determined by fire
assay using a 30g charge followed by an atomic absorption
finish. Samples greater than upper detection limit (3000 ppb)
are reanalyzed using fire assay gravimetric using a 1 AT
charge. Rockcliff inserted certified blanks and
standards in the sample stream to ensure lab integrity.
The information in this news release has been reviewed and
approved by Ken Lapierre P.Geo.,
President and CEO of Rockcliff Resources Inc., a Qualified Person
in accordance with Canadian regulatory requirements as set out in
NI 43-101.
Rockcliff Resources Inc.
Rockcliff Resources Inc. is a Canadian resource exploration company
focused on discovery and advancement of its high-quality mineral
properties at its Snow Lake Project. Rockcliff presently controls
the Snow Lake Project totalling in excess of 400
km2. The project includes two VMS copper rich NI
43-101 Resources (Rail and T-1 Copper Deposit), one former copper
rich VMS mine (Dickstone), one historic VMS copper deposit (Lon)
and the T-2 Copper Zone (Tower). Rockcliff also controls a
zinc-silver rich NI 43-101 Resource (Shihan) and a precious metal
property including one former gold mine (Century Mine).
Forward Looking Statement:
Some of the statements contained herein may be
forward-looking statements which involve known and unknown risks
and uncertainties. Without limitation, statements regarding
potential mineralization and resources, exploration results, and
future plans and objectives of the Company are forward looking
statements that involve various risks. The following are
important factors that could cause the Company's actual results to
differ materially from those expressed or implied by such forward
looking statements: changes in the world wide price of mineral
commodities, general market conditions, risks inherent in mineral
exploration, risks associated with development, construction and
mining operations, the uncertainty of future profitability and the
uncertainty of access to additional capital. There can be no
assurance that forward-looking statements will prove to be accurate
as actual results and future events may differ materially from
those anticipated in such statements. Rockcliff undertakes no
obligation to update such forward-looking statements if
circumstances or management's estimates or opinions should change.
The reader is cautioned not to place undue reliance on such
forward-looking statements.
Neither TSX Venture Exchange nor its
Regulation Services Provider (as that term is defined in the
policies of the TSX Venture Exchange) accepts responsibility for
the adequacy or accuracy of this release.
SOURCE ROCKCLIFF RESOURCES INC.