Giga starts Brazilian drill program targeting Sedimentary-hosted Copper occurrences Mark Jarvis, CEO of Giga Metals Corp (TSX.V: GIGA) (OTCQX: HNCKF) (FSE: BRR2) today announced commencement of a first phase reconnaissance drilling program
December 6, 2021 TSX.V - GIGA
Giga starts Brazilian drill program targeting
Sedimentary-hosted Copper occurrences
Mark Jarvis, CEO of Giga Metals Corp (TSX.V: GIGA) (OTCQX: HNCKF) (FSE:
BRR2) today announced commencement of a first phase reconnaissance drilling program
to test the potential of a series of priority targets generated during 2021 at its Sedimentary-
hosted Copper Exploration Project, in the state of Piaui, Brazil (see press release dated 21st
February 2021).
The drill targets on the 16,858-hectare Corrente Property (see Figure 1) to be tested by this
initial program are defined by:
• copper mineralization intersected by five historical well boreholes (BH-A to E)
within sequences of the prospective clastic and carbonate rocks of the Cambrian
Araçá Basin;
• anomalous copper and associated pathfinder element results (Ag, Ba, Co, In, Sb
and Tl) in contiguous stream sediment samples; and,
• association or coinciden ce with larger regional faults which are expressed as
regional lineaments and are evident in the regional magnetic data.
“Our initial program will be 10 holes with a roto -percussive drill at an average planned
hole depth of 150 meters at an approximate spacing of 500m to 1000m ,” said Mr. Jarvis.
“These boreholes aim to demonstrate the presence of copper mineralization associated with
the targeted prospective stratigraphy at relatively shallow depth and interpreted ‘feeder
structures’ believed to be associated or coincident with larger regional faults.”
The geological setting is reminiscent of well -known sediment -copper mineralization
occurrences around the world including less metamorphosed portions of the Central
African Copper Belt and the Kupferschiefer (“copper shale”), the latter currently mined by
KGHM in Poland, and known to extend for hundreds of kilometres across northern
continental Europe as a narrow sub -unit up to two metres thick within the Southern
Permian Basin.
Reconnaissance field work undertaken by Exploration Outcomes Ltda. of Sao Paulo on
behalf of GIGA has revealed evidence of both oxide and sulphide sediment-hosted copper
mineralization in historical drill cuttings from five widely spaced groundwater wells
examined across the Corrente Property. Non-representative grab samples from abandoned
historical borehole cuttings comprised of brown and light green siltstone and calcisiltstone
with malachite fracture coatings produced values up to 0.58% copper and 0.31% Cu (BH-
A, sample MAC121A, and BH-B, sample MAC106A, respectively).
Roto-percussive borehole testing to 1 50 metre depths is being employed by GIGA as an
economical means to penetrate the overlying lower sequences of the Parnaiba Basin rocks
and sample the copper enriched upper siltstone units of the Cambrian Araçá Basin .
Southern Piauí state is remote and semi-arid region of Brazil where access away from town
centers is limited. Neither the Araçá Basin rocks, nor the sediment -hosted copper
occurrences associated with them are well studied or explored. The near flat -lying
sedimentary rocks of both the Parnaiba B asin and more local Araçá Basin further hinder
prospecting in the region where sedimentary profiles are not well exposed.
Geochemical stream sediment samples were collected at 114 sites within the Rio Corrente
drainage basin ranging from 2.5 to 32.9 parts per million (ppm) copper. Anomalous results
occurred in clusters ranging between 10.1 ppm copper and 32.9 ppm copper (23 sites).
Regionally, values ranged from 2.2 ppm copper to 89.9 ppm copper (149 samples total).
All samples were submitted to ALS Glob al analytical labs for sample preparation at Belo
Horizonte, Brazil and multi-element Induced Coupled Plasma (ICP) analysis in Vancouver,
Canada and Lima, Peru.
The scientific and technical information contained in this news release has been prepared,
reviewed and approved by David Tupper, P.Geo. (British Columbia), a Qualified Person
(“QP”) within the context of Canadian Securities Administrators’ National Instrument 43-
101; Standards of Disclosure for Mineral Projects (NI 43-101).
On behalf of the Board of Directors,
“Mark Jarvis”
MARK JARVIS, CEO
GIGA METALS CORPORATION
Neither TSX Venture Exchange nor its Regulation Services Provider (as that term is
defined in policies of the TSX Venture Exchange) accepts responsibility for the adequacy
or accuracy of this release.
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