Project Update, Taquetren, Rio Negro, Argentina
Project Update, Taquetren, Rio Negro, Argentina
Vancouver, British Columbia September 19, 2023. Norseman Silver Inc. (TSXV:NOC)
OTCQB:NOCSF) (“Norseman” or the “Company”) is pleased to announce sampling results and an
update on the Taquetren Project, Rio Negro, Argentina.
Phase 1 work at Taquetren, this year included completing seventeen trenches and magnetometry,
gradient-array IP and resistivity geophysical surveys . The work was spread across three
prospects, Irma, Martha, and Centro, which are located within 4 km of each other.
At Irma, t he analytical and field results indicate a sheeted complex of gold-bearing, locally
discontinuous veinlets and veins covering an area of approximately 1.8 km by 0.5 km, oriented
northeast-southwest.
Phase 2 trenching and geophysics to generate drill targets at Irma and Centro is proposed for Q4
2023.
Highlights:
• Rock chip results: 18.10 Au g/t, 13.43 Au g/t, 12.22 Au g/t, 11.48 Au g/t, and 9.92 Au g/t
• Trench intersections include 5.2 m @ 1.8 g/t Au; 3.4 m @ 3.8 g/t Au; and 3.6m @ 1.0 g/t
Au
• Five clear resistivity anomalies are aligned with the vein and structural fabric orientation
Sean D. Hurd, President and CEO, commented: “ Cost-effective, grass-roots exploration has
demonstrated widespread gold occurrences at Taquetren. There is an encouraging mix of high
grade gold in veins as well as m ineralization in silicified wallrock and veinlet clusters. A
potentially significant NE-SW mineralizing system has been identified.
Soil geochemistry and trenching are proving to be good and low -cost exploration tools. In
addition, the geophysical survey identified five large resistivity anomalies consistent with buried
veining or silicification typical of large epithermal gold systems seen elsewhere in Argentina .
Gold mineralization at Taquetren is variable along strike and further work is needed to vector
in on priority targets.
The aim is for Phase 2 work in 2023 to define targets that could be drill -tested in 2024.
Additional trenching will focus on in- fill work. Extra geophysics could help to defin e a depth
component to the five main resistivity anomalies.”
wind.
Robust rock chip and soil geochemistry results, and geological mapping, outline clear zones of
anomalous mineralization. Subsequent activity included geological mapping, trenching and
magnetometry, gradient array IP and resistivity geophysical surveys.
Geology
The main geological formations mapped at Taquetren Project are calc-alkaline components of
the Jurassic Taquetren Formation. The dominant lithologies are andesites, intercalated with
rhyolites and ignimbrites.
In the southwest of the area, t he Gastre Fault system traverses Taquetren in a northwesterly
direction (see Figure 2, below). The Gastre fault system is a major or first-order crustal structure
that hosts the Navidad silver deposit 120 km to the southeast. In the Taquetren project area a
second-order structural fault system oriented to the northeast is evident. Gold -pyrite quartz
veins, veinlets, and geophysical and geochemical anomalies are preferentially aligned northeast-
southwest. The adjacent Calcatreau gold deposit is controlled by similar NE -SW oriented
second-order structures.
At Irma, gold mineralization corresponds to a system of several veins and subparallel veinlets
trending NE-SW predominantly hosted in andesites. In places the veining is intense, resembling
stockwork zones. The veins are discontinuous in grade, length and thickness but the anomalous
zone as a whole covers an area approximately 1.8 km long by 0.5 km wide.
At Martha, there is evidence of a buried low -sulfidation epithermal system. Weak gold and
arsenic anomalism in soil geochemistry are spatially related to rhyolitic domes and ignimbritic
flows. There is silicification visible at surface, and notable rock float with well-defined lattice
bladed textures that may represent the boiling zone of a typical epithermal system.
Figure 2. Taquetren Structural and Geological Setting
Stream Sediment and Rock Chip Sampling Program
Since 2021, a total of 270 stream sediment or soil samples and 565 rock chip samples have been
taken (see Figures 3 and 4, below). The best results are clustered in the western area of Coiron
3, and into Coiron 2 and Coiron 4. Notable rock chip results from veins sampled in the Irma
prospect area include samples grading, 18.10 Au g/t, 13.43 Au g/t, 12.22 Au g/t, 11.48 Au g/t,
and 9.92 Au g/t (see Figure 5, below). Regional sampling is ongoing.
Figure 3: Taquetren soil sample results (Au)
Figure 4: Taquetren rock chip results (Au)
Trenching
In 2023, seventeen trenches were excavated and sampled at Taquetren. Fifteen trenches were
dug at Irma (shown below), and one trench each at Martha and Centro.
Figure 5. Irma, Taquetren, Trench Locations, Geology
At Irma the assay results from trenching showed the gold values were highly variable at a local
level but relatively consistent across the wider geochemical anomalies. In some instances, veins
were uncovered in the trench (approximately 1 m below surface) which were not apparent in
initial surface mapping. Elsewhere, veins visible at surface do not project to depth. For example,
in trench T7 there was no vein at a point where only 4 m away a 20 cm vein at surface returned
values of 18.28 g/t Au, and 7.83 g/t Au. Further along trench T7, a 35 c m wide vein returned
29.54 g/t Au with no evidence of veining on the surface.
Table 1. Trench results
Trench Intersection Comment Note on Trench Location Length (m) Au g/t Pb %
T01 5.2 1.80
Including 1.00 m @ 4.37 g/t Au Soil anomaly (163ppb Au) Including 0.90 m @ 5.2 g/t Au
T02 2.5 0.22
Soil samples of 7ppb and 4 ppb Au.
30 m from a Qtz vein subcrop (0.5 m @ 3.13 g/t
Au)
T03 2.2 0.94
Including 0.40 m @ 4.61 g/t Au Soil anomaly (77 ppb and 23 ppb Au)
1 m from a Qtz vein subcrop (0.4m @ 11.0 g/t Au)
T04
0.1 13.43 1 m from a Qtz vein subcrop and calcite (0.2m @4.08 g/t
Au) 1.5 0.21
3.1 0.51
T05
0.6 0.12 3 m from a Qtz vein subcrop (0.1m @0.28 g/n Au).
Soil anomaly (23ppb Au) 0.6 0.12
0.4 0.13
0.4 0.13
T06 3.6 1.06 10 m from a Qtz vein subcrop (0.2 m @2.46 g/t Au)
T07
3.4
3.84
Including 0.35 m @ 29.54 g/t Au 5 m from a Qtz vein subcrop (0.2 m @18.28 g/t Au)
Soil anomaly (21 ppb Au) Including 0.45 m @ 4.08 g/t Au
T08 0.5 0.22 On a Qtz vein subcrop 0.5 m in width
T09 3.0 1.41 0.8 Including 0.60 m @ 4.84 g/t Au 1 m from a Qtz vein subcrop (0.9 m @6.58 g/t Au)
T10 1.9 0.45 1 m from a Qtz vein subcrop (1.0 [email protected]/t Au)
T11 0.5 2.82 Area with quartz float upto 10 cm in size.
T12 0.7 1.20 Oxidised veinlet swarm 2 m width. (0.2 [email protected] g/t Au)
T13 0.5 1.12 Area with quartz float upto 5 cm in size and calcite veins
upto 10 cm wide.
T14 0.4 1.02 2.56 10 m from a Qtz vein subcrop (0.3 [email protected] g/t Au)
T15 No significant values 15 m from a Qtz vein ‘Veta Juan’
T16 No significant values 40 m from a Qtz vein ‘Veta Nueva’ – Martha Prospect
T17 No significant values Centro Prospect
Multi-element a ssay results of arsenic and lead are also highly variable on a local level,
reinforcing the erratic nature of mineralization at Taquetren. Gold is sometimes correlated with
arsenic values, however in other cases it is correlated with lead values. Copper, zinc, and silver
values are generally insignificant.
Another interesting feature is the presence of mineralization found in small quartz veinlets (3-
10 mm wide). The veinlets are associated with chloritic and argillic alteration, and with a
significant degree of oxidation (presumably from pyrite). When abundant these fine veinlets
form swarms and are mapped as a vein set . Occasionally silicified wall -rock material exhibits
gold mineralization without abundant quartz veinlets.
The trenching at Martha did not replicate the results that were previously reported in high grade
copper grab samples. No significant values were encountered in trenches at Martha or Centro
prospects.
Full trench results are shown in Table 1, above.
Figure 6. Irma, Taquetren, Trench Locations and Geochemistry
Geophysics
Quantec Geoscience Limited was contracted to carry out geophysical surveys at the Taquetren
project. The work included 192.95 line kilometers of magnetometry and 99.10 line kilometers
of gradient-array IP and resistivity.
At Irma and Centro several sub-parallel, planar areas of high resistivity were encountered. The
location and orientation of the anomalies broadly corresponds with the main area of veining and
veinlet development. See Figure 7, below. The resistivity highs are interpreted to represent zones
of silicification at depth, either concentrated into quartz veins or present as a wider zone of
silicification.