Thunderstruck report results from the first two drill holes on a drill program under way the Korokayiu Joint Venture (JV) zinc -copper volcanogenic massive sulphide (VMS) prospect.
Form 51-102F3
Material Change Report
Item 1 Name and Address of Company
Thunderstruck Resources Ltd. (“Thunderstruck”)
488 - 1090 West Georgia Street
Vancouver, British Columbia, V6E 3V7
Item 2 Date of Material Change
December 11, 2019
Item 3 News Release
A news release was disseminated on December 11 , 2019 through the
facilities of Newfile.
Item 4 Summary of Material Change
Thunderstruck report results from the first two drill holes on a drill
program under way the Korokayiu Joint Venture (JV) zinc -copper
volcanogenic massive sulphide (VMS) prospect.
Item 5 Full Description of Material Change
Drill hole WLK14B intersected 14.5% Zinc (Zn), 2.35% Copper (Cu), 111
grams-per-tonne Silver (g/t Ag), and 0.66 g/t Gold (Au) over a drill core
interval of 6.31 metres1; within a broader zone of mineralization
returning 9.5% Zn, 1.87% Cu, 55 g/t Ag, and 0.48 g/t Au over a 10.55-
metre core interval (Table 1 and Figure 1). WLK14B ( -60o dip / 334o
azimuth) was drilled beneath the Ko rokayiu VMS Discov ery Outcrop to
verify historical drill intercepts reported by Anglo American. The
mineralization is hosted by intensely altered fragmental volcanoclastic
dacite hosting massive sphalerite-chalcopyrite-pyrite mineralization.
Drill hole WL K14A was designed to test the depth extent of high -grade
massive sulphide mineralization intersected in WLK14B 40 metres down
dip on section. WLK14A ( -90o dip) intersected hanging wall basalt -
andesite rocks directly overlying a shear and faulted contact zone beneath
which d acitic volcanoclastic rocks hosting disseminated chalcopyrite -
pyrite mineralization assayed 2.0% Cu, 0.11% Zn, 60 g/t Ag, and 0.51 g/t
Au over a drill core interval of 3.35 metres1, within a broader zone of
mineralization assaying 1.2% Cu , 0.3% Zn, 28 g/t Ag, and 0.23 g/t Au
over 8.38 metres
Table 1: Korokayiu Cu-Zn Deposit 2019 Diamond Drill Intercepts
Drill Hole From (m) To m) Interval (m) Zn (%) Cu (%) Ag (g/t) Au (g/t)
WLK14B 57.05 67.60 10.55 9.51 1.87 54.5 0.48
including 57.73 64.04 6.31 14.51 2.35 111.1 0.66
WLK14A 78.82 87.20 8.38 0.28 1.15 27.5 0.23
including 78.82 82.17 3.35 0.11 2.05 59.7 0.51
1The true width of mineralization is estimated to be 80-100% of the drilled interval
The 2019 Korokayiu Joint Venture (JV) zinc-copper volcanogenic massive
sulphide (VMS) prospect diamond drill program comprised 7 drill holes
totaling 904 metres. The 2019 diamond drill program has now paused for
the holiday break and is expected to resume in early January, 2020. The
drilling is funded by Japan Oil G as and Metals National Corporation
(JOGMEC).
Figure 1: Korokayiu 2019 Diamond Drill Section
Methodology and QA/QC
The analytical work reported on herein was performed by Australian
Laboratory Services Pty. Ltd. (ALS) at Perth, WA. ALS is an ISO -IEC
17025:2017 and ISO 9001:2015 accredited geoanalytical laborato ry and is
independent of the Thunderstruck Resources and the QP. Drill core
samples were subject to crushing at a minimum of 70% passing 2 mm,
followed by pulverizing of a 250 gram split to 85% p assing 75 microns
(PREP-31). A 0.25 gram sample pulp was then subject to 4- acid (HF -
HNO3-HClO4) digestion and analysis via 33 element ICP -AES analysis
(ME-ICP61) for base metals and silver, and 30 gram fire assay fusion (Au -
AA25) for gold determination. Ba se metal over limit values returning
greater than 1%, or greater than 100 g/t for silver, were analyzed by four-
acid digestion of a 0.40 gram sample pulp, followed analysis via ICP -AES
(ME-OG62).
Thunderstruck Resources follows industry standard procedure s for the
work carried out on the Korokayiu prospect, with a quality
assurance/quality control (QA/QC) program. Blank, duplicate and
standard samples were inserted into the sample sequence sent to the
laboratory for analysis. Thunderstruck Resources detected no significant
QA/QC issues during review of the data. Thunderstruck Resources is not
aware of any drilling, sampling, recovery or other factors that could
materially affect the accuracy or reliability of the data referred to herein.
Qualified Person Statement
Kristopher J. Raffle, P.Geo. (BC) Principal and Consultant of APEX
Geoscience Ltd. of Edmonton, AB, is a qualified person for the project as
defined by National Instrument NI 43- 101. Mr. Raffle reviewed and
approved the portion of the technical co ntent of the December 11, 2019
news release as it relates to Korokayiu VMS prospect.
Item 6 Reliance on subsection 7.1(2) or (3) of National Instrument 51-102
This Report is not being filed on a confidential basis in reliance on
subsection 7.1(2) or (3) of National Instrument 51-102.
Item 7 Omitted Information
No information has been omitted on the basis that it is confidential
information.
Item 8 Executive Officer
Bryce Bradley is knowledgeable about the material change and the Report
and may be contacted (604) 349-8119.
Item 9 Date of Report
December 11, 2019