Avrupa Extends Massive Sulfide Mineralization at the Sesmarias Project, Iberian Pyrite Belt, Portugal
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February 11, 2019 NR 02 - 2019
Avrupa Extends Massive Sulfide Mineralization at the
Sesmarias Project, Iberian Pyrite Belt, Portugal
Avrupa Minerals Ltd. (AVU:TSXV) is pleased to report on progress at the Sesmarias
drilling program on the Alvalade license in the Pyr ite Belt of south Portugal. Drilling is
now complete, with six holes drilled, totaling 2,49 8 meters. The program continues to
be highly successful, accomplishing goals of better technical understanding of the
Sesmarias mineralizing system and significantly enl arging it. Sampling of the drill core
is ongoing, with full assay results expected by the end of February.
Visual Results
The drilling program successfully tested a new exploration model and concepts, with the
following important results:
• Provided a much higher degree of predictability in location of mineralization in
the immediate Sesmarias Project area, as the new mo del was tested
successfully in all six drill holes;
• Enlarged the “10” Lens from 300 meters strike leng th to at least 600 meters
long, up to 400 meters wide, and 25 meters thick (SES026 and SES027);
• Discovered the footwall feeder zone stockwork for the “8” Lens (SES028);
• Intercepted the edge of the “2” Lens/Horizon (SES0 25 and SES030);
• Intercepted a stockwork-stringer sulfide zone abov e the “10” Lens, providing
evidence for a new, fourth lens/horizon, noted for now, as the “26” Horizon
(SES026);
• Showed that mineralization is open to the east up to the bounding fault;
• Showed that mineralization is open to the west up to the boundary of the
Devonian-age Volcano-Sedimentary (VS) host rocks fo r mineralization and
the overlying Tertiary-age gravels and semi-consolidated sediments.
This self-funded drilling program is the seventh ph ase of drilling to be completed by
Avrupa Minerals on the Alvalade license. In additi on to further targets in the immediate
Sesmarias Project area, additional future drilling is anticipated for the Sesmarias-
Lousal-Monte da Bela Vista District, as well as in other Avrupa-generated target areas
with related Pyrite Belt-style massive sulfide targets and mineralization. The map below
serves as a reminder to the potential for further d iscovery in the Pyrite Belt mineral
system located along the Neves Corvo Trend of mineralization on the Alvalade license.
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Figure 1. Exploration areas prioritized along the Neves Corvo Trend
(red-orange-yellow panels) on the Alvalade license. Note that there
are two former producing mines in the district, loc ated at Lousal and
Caveira. Neves Corvo is located about 75 km south and southeast
along the strike of the Neves Corvo Trend.
Technical Discussion
The recent work at the Sesmarias Project establishe d a coherent picture of multiple,
stacked lenses of massive sulfide mineralization, w ith at least one stockwork feeder
zone. Some poorly defined faults exist which allow for the possibility of deeper targets,
as well as potential, significant strike extension of the Sesmarias mineralization.
The Sesmarias mineralization when combined with the existing potential of remaining
massive sulfide mineralization at the nearby Lousal Mine (located less than six
kilometers north of Sesmarias) and the Monte da Bel a Vista stockwork mineralization
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(located a further two kilometers north of Lousal) makes the Sesmarias Project a key
component in an evolving copper-zinc massive sulfide district on the Alvalade license.
Figure 2. Plan view of Sesmarias Project drilling. AVU has d rilled 30 holes into the target over a
strike length of 1,500 meters. Present understandi ng of the Sesmarias Mineral Zone suggests
potential for further massive sulfide mineralizatio n for at least an additional 800-1,000 meters north of
SES008 and possibly 200-300 meters to the south of SES021. Red shapes indicate map view
location of known (to date) lenses and horizons, wh ile the blue line represents the east side bounding
fault.
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Figure 3. Schematic long section through the center axis of S esmarias mineralization.
The success of the drilling program stemmed from “b ack-away” re-logging and re-
interpretation of 38 Avrupa and pre-Avrupa historic drill holes in the Sesmarias Project
area. The objective of the re-logging campaign was to delineate mineralized target
horizons in the general stratigraphy of the Volcano -Sedimentary (VS) section of rocks
that host copper-zinc massive sulfide mineralizatio n throughout the length of the Iberian
Pyrite Belt in Portugal and Spain. The re-logging campaign quickly established an
increased strike length of the Sesmarias mineralized zone to at least 2.5 kilometers
The “back-away” re-interpretation of Sesmarias stra tigraphy, utilizing quick logging of
the historic drill holes and 3D modeling of all the new data, allowed the Avrupa team to
predict the robustness of the “10” Lens, first note d in SES010, then subsequently
intersected in SES019, SES021, and SES022. Present -phase drilling, SES026
intersected nearly 30 meters of visual massive sulf ide mineralization. SES027, drilled
300 meters north of SES026, intersected stockwork s ulfide mineralization and mafic
intrusive rocks at the target depth, indicating the possible end of “10” Lens in the south
sector of the Sesmarias system. For now, strike le ngth of the “10” Lens, from SES021
to SES026 is 600 meters. Following is a 3D view of the “10” Lens.
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Figure 4. Three-dimensional (3D) view of the “10” Horizon (so lid red unit) at Sesmarias, SES021 on the
south and SES027 on the north. Previously, AVU int erpreted the lens to be vertical, based on detailed ,
“close-up” logging of drill holes. By re-logging t he rock units/layers in a “back-away” package, or r ock-unit
mode, the AVU geological team established a more pr edictable, flat-lying stratigraphy that has enhance d
the potential of large-scale mineralization at Sesm arias. Re-interpretation of geological results in
numerous pre-2018/19 drilling leads us to believe t hat some holes were collared on the wrong side of t he
bounding fault and under (or west of) the “10” Lens , thus missing the massive sulfide mineralization.
Furthermore, this “back-away” review of the core re sulted in the determination that the
overall orientation of the rock layers is far close r to horizontal than previously
understood. We found evidence of at least three, p ossibly four, potentially mineralized
horizons hosting VMS-style copper-zinc sulfide mine ralization. Re-logging of 38
previous drill holes showed:
• VS stratigraphy is not vertically oriented, but re latively horizontal, dipping 30
to 45 degrees to the east and plunging to the north.
• A generally north-northwest trending, steeply-orie nted fault cuts stratigraphy
and mineralization on the east side of the present Project area. At this time,
all known massive sulfide mineralization lies on th e west side of the fault.
The east side is generally un-explored (with the ex ception of SES014 and
several pre-Avrupa drill locations), yet remains a strong potential target area
for further mineralization. The location of the fa ult is now much better known
after this campaign, though basically still un-mapp ed north of SES008, the
northernmost Avrupa drill hole.
• Sesmarias mineralization is open to the north for a further 500 to 1,000
meters more than previously assumed. Total strike length of potential target
horizons now appears to reach +2.5 kilometers, an i ncrease from 1.8
kilometers, as previously reported.
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• Review of previous drilling that did not intersect massive sulfide mineralization
at the south end of the Sesmarias target indicates that the holes were placed
on the wrong side of the bounding fault (and direct ed west, or below, of the
“10” lens mineralization), which had not been well- understood during earlier
drilling campaigns. Target to the south appears potentially open, but modified
by faulting.
Avrupa Minerals Ltd. is a growth-oriented junior exploration and develo pment
company directed to discovery of mineral deposits, using a prospect generator model.
The Company holds one 100%-owned, self-funded flags hip project, the Alvalade VMS
Project. Avrupa focuses its project generation wor k in politically stable and prospective
regions of Europe, including Portugal, Kosovo, and Germany.
For additional information, contact Avrupa Minerals Ltd. at 1-604-687-3520 or visit our
website at www.avrupaminerals.com .
On behalf of the Board,
“Paul W. Kuhn”
Paul W. Kuhn, President & Director
This news release was prepared by Company managemen t, who take full responsibility for its content. P aul W.
Kuhn, President and CEO of Avrupa Minerals, a Licen sed Professional Geologist and a Registered Member of the
Society of Mining Engineers, is a Qualified Person as defined by National Instrument 43-101 of the Can adian
Securities Administrators. He has reviewed the tec hnical disclosure in this release. Mr. Kuhn, the Q P, has not only
reviewed, but prepared and supervised the preparati on or approval of the scientific and technical cont ent in the news
release.
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.