Ann: CHN survey returns multiple new targets on Julimar Lookalike, page-100

Thanks for copy-pasting to the VMS threads.

It was well after midnight and I needed some Zzz's so you beat me to it. LOL

If anybody is interested in my reply to the questions on their thread, the link is here:

https://hotcopper.com.au/posts/60769292/single

Or the (somewhat lengthy) gist of it:

in replying to Bas:

Good questions. I wondered the same things.

I'm no expert, so I try to provide references to substantiate as best I can, and welcome comments from anyone who can help fill in the blanks or help me get back on track if I misinterpret anything.

Bas, you mention the 3rd dot point, but to answer your questions, I need to back up a bit:

RE: my 2nd & 3rd dotpoints for Odin.
================
These are basically just "chapter subtitles" from my own notes, so apologies for any ambiguity.

To clarify (despite differences between Odin (potentially) and Kathleen Valley (measured and mapped));

Greenbushes-style lithium deposits (30k's from Odin) are famously different from other big mines in several ways, most notably;

1) locations of best Lithium grades within the formation are not "traditional". eg:

REF: Research Paper: https://pubs.geoscienceworld.org/segweb/economicgeology/article-abstract/90/3/616/21471/A-review-of-the-geology-mineralization-and?redirectedFrom=fulltext




So presumably, just drilling through the middle is unlikely to yield typical higher results.

2) mineralisation from the host soils:

REF: Research Paper;
https://www.researchgate.net/publication/267970213_Environment_and_Structural_Controls_on_the_Intrusion_of_the_Giant_Rare_Metal_Greenbushes_Pegmatite_Western_Australia



So presumably, we should expect other minerals from the host layers.

As a loose analogy, it seems kinda like comparing Greenbushes Apples to Kathleen Valley Oranges. LOL

But at Odin: it's currently just a substantial 2km-ish stretch of potential lithium pathfinder data.
Specifically; 1.9km x 500m as per VMS Announcements above.


While at KV: it's a 2km-ish measured & mapped resource, which is practically wrapped up in a bow for buyers.
Specifically; 1.7km x 600m from their webpage : https://www.ltresources.com.au/projects/kathleen-valley

So any closer analogy might be; comparing a handful of Odin Apple Seeds to a shipload of KV Oranges. LOL

RE: What exactly would be giving the response?
==================================
Okay, so, aside from;
a) the unique mineralised nature of Greenbushes style deposits that we can hope for, and...

b) a 21m layer of host VMS between 2 negligible-lithium pegmaties, mineralised by Nickel and Copper as per table below
(VMS layer not to be confused with the VMS asx code, .)

REF: A Government funded hole in 2018 which revealed the following results between pegmatites:
(See Also Page 8, ANN: 11 May 2018)

Note: Predictably, the highest Lithium grade in that hole, where it "nicked" the 2 pegmatites was only about 150ppm.
"A duster for lithium," some would reply, because the hole went down to about 425m for a cheap easy open pit...

But did it penetrate the footwall? Or the Hanging Wall..?

Without more information, it seems premature to call it a duster for Lithium... nor any kind of "duster" with results like that for Nickel, Copper, Magnesium or Manganese in the host layers.

There may also be an interesting "C" option possible to detect Tantalum & Niobium as pathfinders for Lithium...
Although Andrew said he was using a Tin/Tantalum database of known exploration data as a pathfinder for Lithium...
And most of that data seems to be derived by traditional methods...

We know that normally, Lithium, Tantalum & Niobium are both supposed to be only weakly paramagnetic...

BUTTTTT.... this blog by professional geo's at ageophysics advertises that it is possible for them to detect both Tantalum & Niobium with EMs.


... Which makes me curious if the hand-held XRF model used at Odin (in the table above) had the capability too.
If ever anybody gets to meet Andrew at an event, can you please ask him? Or perhaps Alex might know..?

REF Link: https://www.ageophysics.com/en/blog/what-is-an-aeromagnetic-geophysical-survey/2/6



RE There must be some confusion with the technique...

===============

.Possibly. It's hard to find historical data so we are comparing the same stages of exploration. eg:

I tried to find "first glimpses" of Greenbushes and Kathleen Valley to compare against these first glimpses at Odin.
(So we can compare proverbial appleseeds with appleseeds, LOL.)

But Greenbushes was first pegged for tin way back in 1888... and Liontown bought KV Lithium and Tantalum rights from Ramelius (Gold) in 2016, who acquired that tenement from Xstrata Nickel in 2014, and so on...

Most of the public data pre 2014 is now archived behind various login-only portals.

So anecdotally, both big Lithium Projects were metaphorically/literally tripped over in the course of finding something else. LOL.

But between 2016 and 2018, Venture was working on a theory at Odin, which could help them target it in a reliable and repeatable way.

==================
RE: Traditional & OTHER Techniques at Odin (PRE CHALICE JV):
.
....Normally, this is the boring bit. LOL... Perhaps that's why it's always at the back of announcements, in the fine-print JORC tables.


1) Traditional methods; at least 4 other explorers are credited for their data, (prior to Venture's acquisition in 2016}:
REF Page 7 of ANN: https://wcsecure.weblink.com.au/pdf/VMS/01890720.pdf



2) The 3-pronged approach pre 1995 using structural mapping, geochronology and high-res ion microphobe analyses of zircons...very interesting, and a lot simpler than it sounds, but I needed to swallow a thesaurus to survive it, LOL. So suffice to say:

REF: The Intro Page for Research paper called:
"A review of the geology, mineralization, and geochronology of the Greenbushes Pegmatite, Western Australia"
https://pubs.geoscienceworld.org/segweb/economicgeology/article-abstract/90/3/616/21471/A-review-of-the-geology-mineralization-and?redirectedFrom=fulltext

... and 3) the most recent EM technique by Venture Minerals.

REF Venture Minerals Ann: 23 May 2018, Page 4 Map:

(Note: VMS on the map = Volcanogenic Massive Sulfide, not Venture Minerals asx code.)

Apologies for the length of my reply. I just find this so dang interesting.


RE: Likelihood of Commerical grades of Lithium still lurking at Odin?
===========================
According the the "researchgate" reference above:

"The intrusive rocks in the Greenbushes pegmatite district are concentrated along the ancient crustal-scale, Donnybrook-Bridgetown shear zone, analogous to the present San An-dreas fault system, and are characterized by steeply dipping planar mylonitic fabrics with horizontal stretching lineations, asymmetric folds, asymmetric pressure shadows, and shear bands suggesting sinistral strike-slip movement."... but that's a whole other post, which is irrelevant to all the awesome effort by our Champions at Chalice over at Thor this month.

.
.
.BOTTOM LINE re Odin Potential...?In 2018, commodity prices in $US were circa:

Lithium: in the process of falling from $16,000 to $10,000 /t
and aparently not easy to find higher commercial grades at Odin via traditional techniques.

Or from Host layers at Odin:
Nickel: rising from $13,000 /t
Copper: rising from $8,500 /t
Manganese: $2000ish /t
Magnesium: $2,500ish /t

So to me, the leap by Venture in 2018 from hunting Lithium-Tantalum-Tin-Niobium.... to EM-friendlier Nickel, Copper etc... still seems like a smart move, even with hindsight. {So far, traces of chromium & cobalt are each at least as common as Lithium)

As a result, it's Venture efforts since 2018 which have provided Chalice with something extremely valuable that we don't yet have at Julimar:

Approval to drill anywhere along the "lookalike" snake. Yay!

dyor & gltah