Research Paper- Lithium Potential in Northern Portugal

Here is the link if you guys are interested. This is very relevant as DKO owned one of this tenement (Sepeda) while some other under application.

https://www.researchgate.net/profil...af1e32da0000000.pdf?origin=publication_detail

Some highlight derived from the paper:

From Clause 3:  Covas do Barroso (Name of Sepeda in the paper) : spodumene-rich aplite-pegmatite dykes intruding the meta-sedimentary Silurian aged sequence. Resources evaluated.


From Clause 3.2 :
The Li-rich aplite-pegmatite dykes show a spatial distribution of  3 sub-types (LIMA et al, 2003):
- spodumene-rich aplite-pegmatite dykes and sills are dominant at N and NE regions; ( I believe this I the right location of Sepeda owned by DKO)
-  petalite-rich are dominant at SW and
-  lepidolite-rich occur at NW regions.

From Clause 3.2 :
By the HMS tests a glass grade spodumene concentrate with 5% Li 2 O was obtained with a recovery of 517 th Industrial Minerals International Congress Barcelona, 28-31Março2004, 81,5% Li 2 O: feeding concentrations bigger then 2% gave a high grade spodumene with 6% Li 2 O and a recovery of 60% but when attempting to obtain >7% Li 2 O concentrates the recovery fell to 30%. Fromthe spodumene flotation tailings was obtained a feldspar concentrate with >17% alumina and > 6% alkalis (Na/K ~ 4/3) with a low iron content.

I can't recall if anyone posted this before, but feel free to discuss, your opinion will be appreciated.

Cheers,
Joseph