Alexander Nubia confirms Gold-Rich VMS Mineralization from surface down-dip to 150 metres in the Western VMS Zone at the Hamama VMS project, Egypt. Significant surface trench results include DT-123, which returned 48 metres at 2.26 g/t gold and 16.3 g/t silver
FOR IMMEDIATE RELEASE
Alexander Nubia confirms Gold-Rich VMS Mineralization from surface down-dip to 150 metres in the Western VMS Zone at the Hamama VMS project, Egypt. Significant surface trench results include DT-123, which returned 48 metres at 2.26 g/t gold and 16.3 g/t silver (AuEq. 2.52 g/t)
September 23, 2014 - Alexander Nubia International Inc. (TSX-V:AAN) (the “Company” or “Alexander Nubia”) is very pleased to announce the results from recent deep trenches at the Hamama Project which are near the surface traces of previous drill holes in the Western VMS Zone. This trenching provides an additional dimension to the Company’s understanding of the Hamama Project and confirms significant near-surface mineralization and gold grades, similar to the drill-hole results to at least 150 metres down-dip. Results include:
- Trench DT-123 with 48 meters at 2.26 g/t gold and 16.3 g/t silver (AuEq. 2.52 g/t) along the trace of drill hole AHA-015 which contains 37 meters at 2.3 g/t gold and 107.3 g/t silver
(AuEq. 4.00 g/t)
- Trench DT-122 with 30 meters at 0.66g/t gold and 34 g/t silver (AuEq. 1.20 g/t) along the traces of drill hole AHA-021, which contains 75 meters at 0.96 g/t gold and 50.8 g/t silver (AuEq. 1.74 g/t), and drill hole AHA-023 with 66 meters at 1.1 g/t gold and 24.8 g/t silver (AuEq. 1.49 g/t)
- The interpreted continuity of mineralization supports the VMS model and confirms that deeper drilling in this zone and in untested areas beneath oxidized semi-massive sulphide and ankerite exhalite are important targets for future exploration
Significant mineralization at surface along the traces of the drill holes supports the model that mineralization is continuous from surface to the depth of drilling and is also open below that depth. Future exploration and drilling of the gold-rich cap at Hamama is expected to extend and define the potential scale of the mineralized area and will provide data required for an initial resource estimate.
Dr. John Payne, VP of Exploration, commented: "The oxidized gold-silver cap at Hamama is demonstrating to be one of the largest in the Arabian Nubian Shield. The continued positive assay results at Hamama, both in grade and in the continuity of the near-surface mineralization of the oxidized gold- silver cap indicate the presence of a strong hydrothermal system". Dr. Payne further commented: "This suggests a significant depth potential for mineralization below and lateral to the present extent of drilling. We are looking forward to the next set of assay results at Hamama; an analysis of all the assay data will provide an update on the strike length, average surface width, and average grade at surface of the gold-silver oxidized cap."
Upcoming Results
Hamama VMS
1) Infill trenching to give a density of one deep cross-sectional trench every 50 metres along the strike of the Western VMS zone
2) Update the potential size and grade of the weathered gold-silver cap
3) Exploration by trenching within the Central and Eastern VMS Zones
4) Metallurgical testing to establish preliminary gold-silver recovery rates from cyanide-soluble gold and silver in the oxidized gold-silver cap
Summary of Results of Trenching near Traces of Drill Holes:
Previous trenching in the Western Zone at Hamama encountered significant precious and base metals in both oxidized semi-massive sulphide mineralization and in ankerite exhalite, commonly with gold and silver higher in the oxidized semi-massive sulphide, and zinc, lead, and copper higher in the ankerite exhalite. In this study, surface trenches at least 1 metre deep were excavated near surface traces of drill holes to continue to test the concept that mineralization extends from the drill hole intersections to surface. This feature was shown to be true and reported previously for trenches AHA-T-086, AHA-T-088, and AHA-T-096, near the surface traces of the drill holes AHA-013 and AHA-014, AHA-019, and AHA-017 and AHA-018, respectively. New trenches include AHA-T-121 and AHA-T-137 (near the section containing AHA-024, AHA-025, and AHA-026), AHA-T-122 (near the sections containing AHA-021, AHA- 022, and AHA-023), and AHA-T-123 (near the section containing AHA-015 and AHA-016). Locations of trenches and collars of drill holes are shown in Figure 1; holes were drilled at an azimuth of 180°, except for Hole AHA-026, which was drilled at an azimuth of 170°. Significant composite assay intervals from these trenches are shown in Table 1. Some trenches were limited in position and extent because of topography.
Table 1. Significant composite assay intervals from trenches near traces of drill holes
| Trench | width (m) | Gold (g/t) | Silver (g/t) | AuEq.1 (g/t) | Copper (%) | Zinc (%) | drill holes |
|---|---|---|---|---|---|---|---|
| 121 | 14 | 0.61 | 22.9 | 0.97 | 0.12 | 0.43 | 024, 025, 026 |
| 122 | 30 | 0.66 | 34 | 1.20 | 0.13 | 0.23 | 021, 022, 023 |
| 123 | 48 | 2.26 | 16.3 | 2.52 | 0.01 | 0.06 | 015, 016 |
| 137 | 12 | 0.05 | 3.3 | 0.10 | 0.04 | 1.16 | 024, 025, 026 |
| 86* | 44 | 2.89 | 51 | 3.70 | 0.03 | 0.19 | 017, 018 |
| 88* | 34 | 0.59 | 17.6 | 0.87 | 0.38 | 2.3 | 019, 021, 023 |
| 96* | 74 | 2.85 | 35.6 | 3.42 | 0.04 | 0.12 | 013, 014 |
1: Gold equivalent (AuEq) calculated using the 12-month trailing average for Au and Ag through 2014-05-18, US$ 1292.27/oz Au and US$ 20.41/oz Ag). Using a ratio of US$Au:US$Ag =63 (assuming 100% recovery and no NSR), the AuEq formula is AuEq = (Au g/t + Ag g/t /63). Cautionary note: these figures will change over time. Source: Kitco.com. No cut-off was applied on individual high-grade assay results. *Previously released
Figure 1. Main VMS Horizon, Hamama VMS - Geology, Deep Surface Trenches and Drilling
Figure 2. Western Zone, Hamama - Geology, Deep Surface Trenches and Drilling On surface the Western VMS Zone contains two main types of rock, oxidized semi-massive sulphide and ankeritic exhalite. The oxidized semi-massive sulphide is most common near the stratigraphic top of the system. The ankeritic exhalite is common below the oxidized semi-massive sulphide and also forms most of the thick exhalite zone from trench AHA-T-088 westward for 250 metres. Stratigraphically beneath the exhalite zone are strongly altered andesite (to the east) and felsite (to the west). The latter was brecciated strongly and contains intense silica and sericite alteration (in AHA-019, and in AHA-021 to AHA-026). Trenches 121, 122, and 137 are mainly in ankeritic exhalite, and Trench 123 is mainly in oxidized semi-massive sulphide. Of previously reported trenches, AHA-T-086 and AHA-T-096 are mainly in oxidized semi-massive sulphide, whereas AHA-T-088 is in ankeritic exhalite.
The geology and assay values of drill holes AHA-015 returned 37m at 2.3 g/t Au and 107.3 g/t Ag (AuEq. 4.00 g/t) are very similar to those of trench DT-123 returned 48m at 2.26 g/t Au and 16.3 g/t Ag (AuEq. 2.52 g/t) (see Figure 4 and Tables 1 and 2). The oxidized semi-massive sulphide zone at surface continues to DDH-15. Deeper, in AHA-016, only minor oxidized semi-massive sulphide is present stratigraphically above altered and mineralized felsite, indicating a moderate facies change which is common in a VMS environment.
Table 2: Composite assays of drill hole results of the gold-silver cap
| Drill Hole1 | Width2 (m) | Gold (g/t) | Silver (g/t) | AuEq.3 (g/t) | Copper % | Zinc % |
|---|---|---|---|---|---|---|
| AHA-015 | 37 | 2.3 | 107.3 | 4.00 | 0.11 | 1.71 |
| AHA-016 | 39 | 0.62 | 71.4 | 1.75 | 0.02 | 0.34 |
| AHA-021 | 53.4 | 1.2 | 65.3 | 2.24 | 0.11 | 0.55 |
| AHA-023 | 46 | 1.5 | 32.8 | 2.02 | 0.03 | 0.53 |
| AHA-024 | 56.8 | 0.59 | 14.2 | 0.82 | 0.02 | 0.16 |
| AHA-025 | 51.6 | 1.12 | 21.8 | 1.47 | 0.02 | 0.22 |
1: Previously released 2 All drill holes were collared at an azimuth of 180° and an inclination of -45° except AHA-23, which was inclined at -70°. Given the orientation of the mineralized unit relative to the drill holes, true widths are 5-10% less than the reported intervals 3: Gold equivalent (AuEq) calculated using the 12-month trailing average for Au and Ag through 2014-05-18, US$ 1292.27/oz Au and US$ 20.41/oz Ag). Using a ratio of US$Au:US$Ag =63 (assuming 100% recovery and no NSR), the AuEq formula is AuEq = (Au g/t + Ag g/t /63). Cautionary note: these figures will change over time. Source: Kitco.com
Figure 3. Gold-Silver Cap, Hamama - Geology and Cross section of 4320E
The geology of the drill holes in the western part of the drilled area is significantly different from that of the associated trenches (See Figures 2 and 3, and Tables 1 and 2); trenches are mainly in ankeritic exhalite whereas drill holes are mainly in strongly altered (quartz-sericite) and brecciated felsite with zones of semi-massive sulphide and minor lenses of siliceous exhalite. This accounts for much of the difference in assay results from the trenches as compared to the drill holes in this region. The nature of the contact is unknown between the ankeritic exhalite at surface and the strongly altered felsite and siliceous exhalite in the drill cores. It probably indicates a rapid facies change in the original volcanosedimentary basin, whose nature will require additional drilling to assess.
Figure 4. Gold-Silver Cap, Hamama - Geology and Cross Section of 4144E
Trench 121 is in ankeritic exhalite at the stratigraphic level of the lower part of the main mineralization zone in the drill holes and contains similar levels of precious and base metals. Trench 137 is in an ankeritic zone deep in the footwall, and its low content of precious metals and high content of zinc are typical of the footwall stringer zone. As in Section 4144E, the nature of the contact is unknown between the ankeritic exhalite at surface and the altered felsic rocks and siliceous exhalite below.
Data support the model of a complex volcanogenic massive sulphide system with a strongly altered footwall stringer zone overlain by a variable exhalite zone, in part of bedded ankerite and in part of semi-massive sulphide. The low pyrite content of the system results in the gangue of the sulphides being dominated by one or more of quartz, sericite, and ankerite, and hence the use of the term “semimassive sulphide” as compared with the more common “massive sulphide” terminology in VMS deposits with a high pyrite content.
The continuity of mineralization and alteration from surface to the depth of drilling indicates that targets for further exploration are deeper along the sections that contain previous drill holes and beneath zones of oxidized semi-massive sulphide and ankeritic exhalite that have not yet been drilled.
About Alexander Nubia International Inc.:
Alexander Nubia (TSX V:AAN) is an Egypt-focused base- and precious metal exploration and development company holding two 100%-owned concessions, Abu Marawat and Fatiri, that together cover more than 2700 km2 and contain several historic gold mines and numerous gold showings. Evidence of gold-mining dates to pre-historic and Pharaonic times. The Company is focused on exploration within the Abu Marawat Concession, which contains its two main projects, the Hamama volcanogenic massive sulphide (“VMS”) deposit and the Abu Marawat mesothermal vein deposit; the latter contains an inferred mineral resource prepared in compliance with NI 43-101 of 2.88 M tonnes, grading 1.75 g/t Au, 29.3 g/t Ag, 0.77% Cu, and 1.15% Zn, containing 0.162 million oz Au, 2.713 million oz Ag, 49 million lbs Cu, and 73 million lbs Zn.1
Alexander Nubia’s flagship project, Hamama VMS, has a number of characteristics that are similar to other major VMS deposits in the Arabian Nubian Shield: such as Bisha (Nevsun Resources: TSE:NSU), Hassai (La Mancha), and Jabal Sayid (Barrick Gold: TSE:ABX). Drilling at Hamama intersected high-grade semi-massive and massive volcanogenic sulphide mineralization, which includes a broad zone of VMS gossan with high-grade gold and silver (an oxidized “gold cap”) above a primary zinc-gold-silver rich exhalite horizon and an extensive mineralized footwall stringer and breccia zone.
Located south of the Abu Marawat Concession is Centamin’s world-class Sukari gold mine, contains 7.7 Moz of proven and probable gold reserves. Production began at Sukari in 2009; in 2013 Centamin produced approximately 350,000 ounces of gold at a cash cost of $663 per ounce. Gold recovery is 88% and head grade is 2.12 g/t Au. Gold mineralization at Sukari has been intersected to depths of 1200 metres below the wadi (valley) surface. Source: Centamin’s website.
The Company’s land package is located 400 km southeast of Cairo and is enhanced by growing infrastructure, including easy access to highway, a railway right-of-way, a high-capacity electricity grid, and nearby major cities; Qena, on the Nile River, and Port of Safaga, on the Red Sea.
1 Technical Report on the Abu Marawat Project, Egypt, 2012. Valliant, W.W. and Salmon, B.S.; NI 43-101 Report prepared by Rosco Postle Associates, Inc, Vancouver, BC.
For more information on Alexander Nubia visit www.alexandernubia.com or please contact:
A. Alexander Massoud President and Chief Executive Officer Egypt: +2 (0) 22 287 6914 Email: [email protected]
General Information Canada: +1 (604) 727-1813 Email: [email protected]
Sample Collection and Processing/ALS laboratory Procedures and Analysis/QA and QC:
Sample collection is under the direct supervision of a Project Geologist with the help of a seasoned assistant. Quartz veins are chip-channel sampled from wall contact to wall contact and perpendicular to the strike and (or) dip direction of the vein. The maximum width of an individual sample is two metres. If the vein is more than two metres wide, but less than four metres, two equal length samples are collected. If the enclosing wall rock shows signs of hydrothermal alteration, a single chip-channel sample, up to two metres in width, is collected on each side of the vein. In areas where the wall rock alteration is more than two metres in width and assay results are favourable, the area will be revisited for additional sampling.
At each collection site, the sample assay tag number is painted on the wall rock with aerosol spray paint to mark the sample location. Individual samples vary in weight but generally weigh between two and three kg. The rock sample along with one Assay Tag Booklet tear-out tab is placed in a heavy cotton, sealable bag with the same assay sample tag number written on the outside of the bag. Sample information including vein width, strike and dip, along with any additional important geological information is recorded in the Assay Tag Booklet along with the GPS coordinates of the sample site. The Assay Tag Booklet is kept in safe storage at the Hamama Camp.
Once collected, samples are processed at the Company’s sample preparation facility at the Abu Marawat camp. Sample preparation is usually under the direct supervision of the same Project Geologist involved with the sample collection. This procedure is followed so that the Project Geologist can also perform specific gravity measurements on some of the samples.
Specific gravity measurements are done by industry accepted practices, whereby a mathematical comparison is made between the sample’s weight in air and its weight in water. A standard quartz sample is tested at various intervals in the sample stream to insure sampling accuracy. Specific gravity measurements have also been cross-checked by ALS Minerals using the Pycnometer technique; the statistical correlation between the two methods is good.
The Company limits its on-site sample preparation to jaw crushing the samples. The entire sample is passed through a Bico Inc. Badger Jaw Crusher to reduce any over-sized particles to less than 5 mm in size. The sample is then riffle-split into two portions of equal size, one of which is retained by Egyptian Mineral Resource Authority (“EMRA”) in its permanent storage facility south of Cairo. Once the samples are approved by EMRA for export, they are sent by courier to ALS Minerals (“ALS”) in Romania for further processing and analysis. ALS processes the samples by internationally accepted assaying techniques. ALS is an IOS certified analytical laboratory and is recognized throughout the world for its quality and reliable work.
The ALS laboratory in Romania can do fire assaying for gold and Atomic Absorption techniques for silver, copper, lead, and zinc along with some additional elements. “Out of Range” samples (Au >10 ppm, Ag >100 ppm, and base metals >10000 ppm) are automatically considered by ALS to be ore-grade samples and are re-analyzed accordingly. Generally, the Company requests additional elements for analysis, which is done in ALS’s laboratory in Vancouver, B.C., Canada. In this case, ALS prepares a small cut from the pulverized material and ships the sample-cut to Vancouver for ICP analysis.
In addition to the internal QA/QC conducted by ALS, Alexander Nubia also does QA/QC work. Five to seven per cent of all samples sent for analysis include duplicates, blanks, and Industrial Standards randomly inserted into the sample stream. Any inconsistencies in the comparative analysis of duplicates, blanks, or Industrial Standards, identified by Alexander Nubia’s technical staff, triggers a request for re-analysis of the batch of samples associated with the discrepancies.
Qualifying Person(s):
The technical information contained in this News Release was prepared by Ralph A Gonzalez, PGeol. Project Manager for Alexander Nubia Inc. and under the direct supervision and reviewed by Dr. John G. Payne, PhD, PGeol., Vice President of Exploration for Alexander Nubia Inc. Both Mr. Gonzalez and Dr. Payne are qualifying persons under National Instrument 43-101 Standards of Disclosure for Mineral Projects. Although reviewed Dr. Payne, the contents of this News Release are the sole responsibility of Mr. Gonzalez.
Cautionary Note Regarding Forward-Looking Statements
The securities of Alexander Nubia International Inc. described herein have not been and will not be registered under the United States Securities Act of 1933, as amended (the “U.S. Securities Act”) or any state securities laws and may not be offered or sold within the United States or to U.S. Persons unless registered under the U.S. Securities Act and applicable state securities laws or an exemption from such registration is available. Some of the statements contained in this release are forward-looking statements, such as estimates and statements that describe the Company's future plans, objectives or goals, including words to the effect that the Company or management expects a stated condition or result to occur. Since forward-looking statements address future events and conditions; by their very nature they involve inherent risks and uncertainties. Actual results in each case could differ materially from those currently anticipated in such statements. 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.