Hi MrB,
The toughest part of doing good due diligence on the ADL Mining District has to do with how long this story has been playing out. Even the most ardent Auryn/Medinah fans that participate on this investment forum have probably forgot about the history of the exploration efforts at the ADL Mining District.
A couple of decades ago, Medinah commissioned a âgeophysical hyperspectral satellite imagery studyâ known as a âCSAMTâ. The satellite aims light beams of a certain wavelength at the deposit and the beams reflect off of the surface back to the satellite with a different wavelength.
The difference between the original wavelength sent and the reflected wavelength taken back in by the satellite is interpreted by the computers. Theyâll determine what minerals are contained at surface on the deposit. These beams do not penetrate the surface, they only show surface âalteration assemblagesâ.
Different deposit types have different surface âalteration assemblagesâ. Itâs the mineralized hydrothermal fluids rising from underlying magma chambers whose roof has been ruptured from pressure build-ups, that do BOTH the âalteringâ of the surface rocks and the bringing up to closer to the surface of the sought-after gold, copper and silver in this case.
Near surface gold within a certain type of surface âalteration assemblageâ, for example, will have a certain âsignatureâ that is interpreted by the computer. The types of surface âalteration assemblagesâ include advanced argillic alteration, propylitic alteration, phyllic alteration, potassic alteration, sericitic alteration, etc.
What this particular âCSAMTâ geophysical survey revealed was a massive 7 Km long swath of about a dozen âintrusivesâ (rock formations that âintrudedâ into the mountain from an underlying magma chamber). OK, thatâs fine and dandy, but what was contained within these âabout a dozen intrusivesâ and did the contents have any value?
What the survey basically said was that whatever is contained in these âabout a dozen intrusivesâ, youâve got a whole bunch of this material present. If these intrusives just so happen to have high-grade gold, copper, silver, and moly present, then the anticipated âMINE LIFEâ will be significant. This survey provided the bottom layer of due diligence, which needed other layers of due diligence to be super-imposed upon it, in order to tell the real story. This provided a wide-angle view of the entire ADL Mining District. The spacing of these âintrusivesâ suggested that this mining district was âchock fullâ of something.
Fast forward to today, and we now know that these various intrusives, at least for the most part, were âchock fullâ of some pretty valuable stuff. In mineral economics, there is a constant overlaying of newer data over older findings. Our problem, at TheMiningPlay investment forum, is that most of us have probably totally forgot about the âolder findingsâ. The pertinent information provided by the older findings, like this CSAMT survey, is just now being revealed in its entirety on a daily basis.
In the area of the 7 or so parallel veins present at the ADL Mining District, there is a massive width of what is called âAdvanced Argillic Alterationâ. The host granodiorite (think granite) was âalteredâ by super-heated, highly pressurized, metal bearing hydrothermal fluids into 3 types of âclaysâ known as illite, smectite, and kaolinite.
These types of clays just so happen to hang out near what are termed âporphyry depositsâ. The CSAMT satellite survey suggested the presence of 2 separate porphyry deposits. One was of the copper-moly type (Type 21a) and the other of the copper-gold type (Type 21c). âPorphyry depositsâ are the most sought-after deposit type in all of mining. The copper-moly variety are the largest of all of the porphyry types.
These things called âmesothermal veinsâ and âepithermal veinsâ just so happen to âtelescope out ofâ porphyry deposits. âMesothermal Veinsâ are by far and away the most valuable of all of the different vein types. They are like redwood trees in stature compared to the saplings that might characterize the much more common âepithermalâ types of vein deposits. You might know âMesothermal Veinâ deposits as âArchean Gold depositsâ, âGreenstoneâ deposits, âShear Zone hosted depositsâ, âLodeâ deposits, or âOrogenic gold depositsâ.
âMesothermal Veinsâ, like those at the ADL, just so happen to tend to BOTH get wider and richer with depth. That can represent a very powerful combination from an economics point of view. This is exactly what we are experiencing at the ADLâs DL2 Vein, which we know quite a bit about. The grades found by Auryn at their new âLevel 3â blow away the grades of ore mined by the artisanal miners at levels 0,1, and 2 which were stellar in their own right. Both Richard Sillitoe, the most prolific mine finder on the planet, and Rob Cinits of ACA Howe, confirmed for us this phenomenon at the ADL veins.
An ideal mineral discovery will have what are called âEARLY PRODUCTION OPPORTUNITIESâ (EPOs). These are near surface, relatively inexpensive to mine, and hopefully of high-grade. The ADL Mining District has a bunch of these which is a blessing. Mining these EPOs, can often act as a âcatalystâ to unlocking the value of the real behemoths which are the porphyries.
The ADLâs porphyry âprospectsâ (at this early stage) still need to be confirmed via drilling, but the evidence provided by Aurynâs âridge crest samplingâ done a few years back is very, very compelling. âMolybdenumâ or âmolyâ is pretty much only found and mined from porphyry deposits and the âridge crest samplingâ program found a very distinct and fairly large âMoly anomalyâ and âCopper anomalyâ (as referred to by Auryn) present.
All of the attention now is on the mesothermal veins at the ADL, which is probably appropriate, but the vast majority of the ADL Mining Districtâs value might be associated with the porphyry âprospectsâ. If there is a bad thing about porphyries, itâs that they are so immense that it costs a fortune to develop them and theyâre always developed via âopen pitâ mining which is looked upon by the environmentalists as being âdirtyâ. The CAPEX is almost always in the billions of dollars range.
The environmentalist also know that we need lots and lots of copper and most of the worldâs copper is mined from porphyries via open pits. Iâm going to guess that copper porphyries, like Aurynâs porphyry âprospectsâ, are going to be given a pass by the environmentalist by necessity.
The question arises as to what âNET PRESENT VALUEâ should we ascribe to Aurynâs porphyry âprospectsâ TODAY. That question is almost impossible to answer unless and until you see a press release concerning perhaps a joint venture âstrategic allianceâ involving Auryn and a major, or perhaps a consortium of majors, agreeing to a program to advance exploration efforts on especially Aurynâs âPegaso Neroâ porphyry âprospectâ.
I could be way off base here, but when I recently read that Robert Mayne-Nichols was appointed as Auryn/Medinahâs new âGeneral Managerâ, for ALL OF Aurynâs mining operations, I immediately thought that maybe the Pegaso Nero finally might get some attention and perhaps ascribed some value. Robert Mayne-Nichols is known as more of a âbig gameâ hunter due to his pivotal roles at world class âTier 1â deposits like Los Pelambres and Collahuasi. I donât read him as being a âVein Guyâ.
From the most recent Auryn quarterly update: âRobert Mayne-Nicholls stated, âI am extremely excited to join AURYN Mining at this pivotal time. The potential of the Fortuna (MY COMMENT: THE VEIN PROJECTS) and Lipangue projects (MY COMMENT: THE PEGASO NERO AND LDM PROSPECTS???) is impressive, and I look forward to contributing to their successful advancement.â
The question arises as to whether or not Auryn should spend a few bucks and pro-actively drill a diamond drill hole or two at the Pegaso Nero in order to secure much more favorable terms on any future JV, or just keep their nose to the grindstone on the various vein projects.