Auger Drilling to Commence at Carr Boyd Nickel Project
Released
Released
Announcement PDF
6 March 2020
ASX ANNOUNCEMENT
AUGER DRILLING TO COMMENCE AT CARR BOYD NICKEL PROJECT
HIGHLIGHTS
Geochemical auger drilling program commencing over the NW portion of the Carr Boyd Nickel Project
Sampling will cover the T5 Prospect contact where RC drilling recently discovered mineralisation at depth
Auger drilling program will cover the largely untested Western Ultramafic Sequence
The ultramafic contacts north of Carr Boyd Mine including the East Scotia & Schneider Prospects will be
sampled
This geochemical sampling works will assist Estrella in driving exploration and drilling at the CBNP by
expanding efforts in the search for nickel sulphides within the fertile nickel bearing host rocks
Estrella Resources Limited (ASX: ESR) (Estrella or the Company) is pleased to announce that the Company is set to
commence an auger drilling program at the Carr Boyd Nickel Project (CBNP or the Project) located 75km north of
Kalgoorlie (Figure 3). The CBNP is comprised of the Carr Boyd Layered Complex (CBLC or the Complex) which hosts
the historic Carr Boyd Rocks nickel mine which produced 202,110t of ore at an average grade of 1.43% Ni and 0.46%
Cu between 1970-1977.
The Company has enlisted Gyro Australia to drill 536 shallow auger holes for multi-element geochemical analysis using
a low-impact Landcruiser mounted auger drill rig (Figure 1). Drilling will comprise of shallow 1.0-1.5m deep auger soil
sample drill holes across the northwest tenements (M31/12, M31/109 & E31/726) at CBNP (Figure 2 & Table 1).
Figure 1. Gyro Australias Landcruiser mounted auger drill rig will be used to collect low impact geochemical soil samples at CBNP.
__________________________________________________________________________________
Office Address London House, Level 11, 216 St Georges Terrace, PERTH WA 6000 Postal Address GPO Box 2517, PERTH WA 6831
Phone +61 8 9481 0389 Fax +61 8 9463 6103
Email info@estrellaresources.com.au
Colreavy
E31/726
Schneider
East Scotia
M31/109
Western
Sequence
T5
M31/12
Carr Boyd
Mine
E31/726
CBLC
Figure 2. Planned auger sample sites across Estrella's northwestern Carr Boyd Nickel Project tenure. The drilling is designed to cover the
Western Ultramafic Sequence, the T5 Prospect contact and the northern CBLC contacts.
Historical samples were collected from near surface, had limited geochemical elements tested for and had much higher
detection limits. Modern laboratories provide 49 elements and much lower detection limits, providing a new insight into
potential hidden mineralisation at depth. With this fresh approach, drilling is designed to target the basal contact north
and south of the T5 Prospect at close spacing (on 100m x 200m grid) where RC drilling recently discovered Ni-Cu-Co
mineralisation at depth (ASX: Nickel Copper Discovery at Carr Boyd Rocks- 28 May 2019; and Assay Results Confirm
New Sulphide Nickel Discovery Zone at Carr Boyd Rocks- 8 July 2019).
The remainder of the program is being drilled on 200m x 400m sample spacings to test along the strike of the maficultramafic contacts of the largely untested Western Sequence which contains the Colreavy Prospect, as well as the
northern contacts of the CBLC which includes the East Scotia and Schneider Prospects (Figure 2).
Company Chief Executive Officer, Chris Daws said “This auger survey will provide cost effective broad coverage of our
northern tenement package where results from recent drilling has highlighted the potential of these largely untested
units. Much of the work to date has focused around the Carr Boyd Mine and the Layered Complex’s southern margins.
The results of the RC drilling at the T5 Prospect has inspired Estrella to expand our thought process and use modern
geochemistry to test the ultramafic contacts to the north and west. This geochemical sampling works will assist Estrella
in driving exploration and drilling at the CBNP by expanding efforts in the search for nickel sulphides within the fertile
nickel bearing host rocks”.
Results of the auger drilling program will be reported once the multi-element assay results are received, the data is
processed and interpreted.
ABOUT THE CARR BOYD NICKEL PROJECT
The tenure portfolio is centered around the Carr Boyd Layered Complex (CBLC), a 75km2 layered mafic igneous
complex, which hosts several occurrences of nickel and copper sulphides. The most significant occurrence discovered
to date is at the Carr Boyd Rocks mine, where mineralisation is hosted by bronzitite breccias (pyroxenites) emplaced
within the gabbroic sequence of the Complex. The CLBC intrusion is emplaced within the surrounding Archaean
Volcano-Sedimentary Greenstone Belts which are host to numerous komatiite hosted nickel mines within the Kalgoorlie
District (Figure 3).
Figure 3. Location of Carr Boyd relation to commercial centres and other major Ni projects.
Table 1. Schedule of Carr Boyd Nickel Project Tenements
Schedule of Mining and Exploration Tenements
Country
State/Region
Project
Tenement ID
Area Ha
Grant Date
Mineral Rights
Interest %
Australia
WA
Australia
WA
CBNP
M 31/12
266
20/11/1984
All
100
CBNP
M 31/109
98
25/07/1991
All
100
Australia
WA
CBNP
M 31/159
79
21/01/1997
All
100
Australia
WA
CBNP
L24/186
279
13/04/2007
N/A
100
Australia
WA
CBNP
E 29/982
890
2/01/2017
All
100
Australia
WA
CBNP
E 29/1012
1780
20/09/2017
All
100
Australia
WA
CBNP
E 31/726
5419
3/04/2008
All
100
Australia
WA
CBNP
E 31/1124
6229
1/05/2017
All
100
Australia
WA
CBNP
E 31/1162
9,196
26/03/2018
All
100
Australia
WA
CBNP
E 31/1215
1,666
28/01/2020
All
100
Competent Person Statement
The information in this announcement relating to Exploration Results, Mineral Resources or Ore Reserves is based on information
compiled by Neil Hutchison of Geolithic Geological Services, who is a consultant to Estrella Resources, and a member of The
Australasian Institute of Geoscientists. Mr Hutchison has sufficient experience relevant to the style of mineralisation and type of
deposit under consideration, and to the activity he is undertaking to qualify as a Competent Person as defined in the 2012 Edition of
the “Australasian Code for Reporting of Exploration Results, Mineral Resource and Ore Reserves”.
Mr Hutchison consents to the inclusion in the report of the matters based on his information in the form and context in which it
appears.
The Board has authorised for this announcement to be released to the ASX
FURTHER INFORMATION CONTACT
Christopher J. Daws
Chief Executive Officer
Estrella Resources Limited
+61 8 9481 0389
info@estrellaresources.com.au
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