TID BITS ...There exists 3 species of Tungsten ( w ) and Vanadium (
San Martin - Tungsten mine aside of Ivana )
Rankachite Ca0.5(V4+,V5+)(W6+,Fe3+)2O8(OH) · 2H2O Rhabdoborite-(V) Mg12(V5+,Mo6+,W6+)1.5O6{[BO3]6-x[(P,As)O4]xF2-x} (x < 1) Rhabdoborite-(W) Mg12(W6+,V5+)1.5O6{[BO3]6-x[(P,As)O4]xF2-x} Tech reports on Ivana do mention -
Molybdenum and Borates San Martin ----------> also has 3 lead species. VP mentioned lead as potential pathfinder
https://live.staticflickr.com/65535/54080984942_a9ebfdd5dd_c.jpg GEOCHEMISTRY OF THE URANIUM MINERALIZED
ACHALA GRANITIC COMPLEX, ARGENTINA ( North of Amarillo )
Several types o f U mineralizations have been observed in the Median and Don
Vicente areas:
(a)
U and Th mineralization associated with an apatite and biotite rich enclave
(sample 61) in the Median area,
represented by high uranothorite, monazite and uraninite abundances; (b) U mineralization in a gneiss (sample 37) located in the contact metamorphism
area o f the Don Vicente district, represented by uraninite;
(c) U mineralizations related to the granites with Na metasomatism and dequartz-
ification (samples 25 and 54), which are the most important with mostly
hexavalent U minerals (autunite, torbernite), but gummite has been observed
in sample 54;
(d) U mineralizations associated with incipient dequartzification and with no or
limited Na metasomatism (samples 19 and 34 from the Don Vicente area),
represented by hexavalent U minerals;
(e)
U mineralizations associated with incipient silicification and argilhzation
(sample 53) in the tourmaline-muscovite granite (yA ) o f the Don Vicente
area, also represented by hexavalent U minerals.
6. DISCUSSION
The Hercynian Achala massif presents mineralogical and geochemical charac
teristics similar to those o f the west European peraluminous leucogranites:
— Characteristic main minerals are aluminous biotite and muscovite in variable
proportions, but biotite content remains generally below 10% . Tourmaline and
garnet are locally observed. Feldspar proportions vary in the areas studied
from granodiorite to adamellite to granite.
— Characteristic
accessory minerals are monazite and uraninite, whose abun dances dominantly control respectively the Th and U contents o f the granites. Uraninite represents the most likely source for U mineralization. — Mineral fractionation,
defined by chemical-mineralogical diagrams and Ba, Sr, Th and Rb, involves dominantly plagioclase, Mg rich biotite and monazite. The simultaneous fractionation o f biotite and monazite (Fig. 9) tends to define
three to four different mixing lines; this type o f relation, together with the low
solubility o f monazite in peraluminous melts [15] and the scarcity o f cordierite
and/or garnet, suggests that biotite and monazite were essentially restitic
minerals, scavenged by the magmas from the anatectic zone
The different groups o f granites characterized in the four areas studied do not
define a single evolutionary trend. At least six different magma types can be distin
guished, especially in the Ba-Sr and Th-Ba diagrams (Figs 8 and 9):
— Groups I and II o f the Copina area, rich in Th, Ba and Sr, with Ba/Sr ratios
increasing during magmatic evolution;
— Group m o f the Copina area, which presents a similar evolution, but at much
lower Ba content for equivalent Sr content than the most evolved samples of
group H; in the A -B (Fig. 3) and SS-A C -M M (Fig. 6) diagrams, too,
group m samples do not follow the trend defined by the first two groups;
— Coarse and fine grained two mica granites o f the Median area with constant
and high Ba/Sr ( ~ 3) and Ba/Th ( > 10) ratios;
— Granodiorite (sample 60 o f Table I), which presents much lower K/Ba and
Ba/Sr ratios and higher biotite content, with a Th concentration equivalent to
that o f the enclosing granites;
— Two
mica and muscovite granites o f the Southern area with a constant and low
Ba/Sr ratio ( - 2 ) and a high Ba/Th ratio ( - 4 0 ) , reflecting the lower K-
feldspar content o f these granites in comparison with those o f the other areas;
7 A granites o f the Median area present the same geochemical characteristics
as this group;
— Unaltered two mica granites o f the Don Vicente area present the same Ba-Sr
behaviour as the muscovite granites o f the Southern area, but they are much
richer in Th for equivalent
Ba and Sr contents (Figs 8 and 9) and have much
lower Ba/Th ratios.
H ie Don Vicente granites, the group HI granites o f the Copina area and the
two mica granites o f the Southern area are particularly well differentiated by their
Ba/Th ratios, which vary from less than 1 to more than 40 with a similar Th content.
The U mineralizations in the granites are only observed in the two areas
(Median and Don Vicente) which show important Na metasomatism associated with
more or less developed dequartzification.
The two mineralized areas also present
a geochemical U background significantly higher than die clarke value for granites
./ (U = 3 -4 ppm), despite meteoric alteration o f uraninite. This accessory mineral
represents the most probable U source for the mineralization, as proposed for the
west European peraluminous leucogranites [3]. Uranium mineralization is at present
essentially represented by hexavalent U minerals. This is probably due to the fact
that the U showings are only known at a very shallow depth. The primary reduced
230 CUNEY et al.
U ore (pitchblende and/or coffinite) has undergone meteoric alteration, as suggested
by the occurrence o f gummite in sample 54.
https://inis.iaea.org/collection/NCLCollectionStore/_Public/20/084/20084222.pdf
Good Argentine comparison -
Uranite, Thorium, Barium, Potassium, Tobernite, Coffinite,
Interedtingly they mention Monazite -
(Ce,La,Nd,Th)(PO4,SiO4) San Martin Mine Select Mineral List Type ----------> click chemical elements
https://www.mindat.org/loc-69628.html
Carnotite photos
shown by BSK show a white chalky carbonate cake.
What minerals convert to white ?
Lead
Calcium
Calcium carbonate
ALUMINUM
Strong presence of Aluminum in -----------> San Martin
Aluminum will oxidize to cakey white.
Image
https://i.etsystatic.com/11467135/r/il/4192e3/2238220143/il_fullxfull.2238220143_s2qw.jpg
Vanuralite ( V, U ) Species with Aluminum
Al(UO2)2(V2O8)(OH) · 11H2O
The formula of vanuralite and related minerals is commonly mistakenly written as to be containing VO4 groups. Since the structure does not contain any of them, but V2O8 dimers (pairs of edge-sharing VO5 tetragonal pyramids), the formula has to be written as Al[(UO2)2V2O8(OH)].11H2O. The real H2O content can be significantly lower (8.5H2O according to structure determination of Plil, 2017).
https://www.mindat.org/min-4152.html
Other species of Aluminum associated to Uranium ?
23 species of Aluminum and Uranium
https://www.mindat.org/chemsearch.php?inc=Al%2CU%2C&exc=&ima=0&sub=Search+for+Minerals
Down in the Valley at Surface
Uranium can and will morph.
Trying to find a source uranium at surface amongst a variety of other minerals
with salars and river watersheds nearby will result in, numerous species of uranium.
Testing Bluffs + Basement host rock
= will cut to the chase.
= provide the definitive primaries
Ivana deposit tracks Picos tail watershed sub surface
Central zone tests above Picos - water path from bluffs and north
If ores move from bluffs down into valley
if water is present and assists uranium to transition ( mobilize via water )
mineralized water passes through Salar
And if U238 + U235 disassociate along with nuclides and actins
Is it inconcievable to think U235 wouldn't remain in an H bond in Salar ?
U238 simply runs a course of slow oxidation.
U235 - is the unstable volatile species - this is the one that would react instantly
There are high readings of Uranium in reports ( over the years )
Question becomes -------> were they loose rocks / surface basement outcrops samples ?
Carnotite ( U,V ) is the principle --------> pitched resource.
Yet.... carnotite is a post effect, weaker grade
Lower lense has the oxide uranium ( this interests me )
Lower lense sits atop basement granites.
Maria zone
has richer grade ( pit digs / host rock ) ( Spanish Report + Press News )
Another video -
mentions rocks in Ivana are nonmineralized.
giggles.
https://www.youtube.com/watch?v=kocuu6ZqH7k
I do admire Ivana / Amarillo.
BUT.... more mineral insight could be offered.
Salars and Bluffs - more info is needed
VP exploration mentioning in video mine briwnfields at same time.
Only brownfields are the 7 mines nearby, San Martin, Amelia etc.....
Will Red Cloud ask all the right questions ...? ( upcoming webinar ) ,
Has bsk found uranium at Chihuidos ?
ong - slow on the news front.
Those east bluff high cps readings - are very, very interedting
like i mentioned - bluffs and basement rock = higher grades vs valley dilutes grades
https://live.staticflickr.com/65535/54118610003_7fb8c0236b_z.jpg
12 years in the valley
no Salar testing
east and west bluffs in full oxide mode - colorful oxides
https://live.staticflickr.com/65535/54112056852_8d53fa38d9_b.jpg
Well at least i've learned a wee bit more about uranium.
Few bumps along the way, sometimes right - sometimes wrong.
Hindsight correction
Perhaps it was muscovite bsk mentioned - not pyrite.
( labelled on ivana map seen at one point )
( former post )
El Completo