[Marinir] {Disarmed} Dorex (TSX-V: DOX) Identifies and Expands New Mineralization at Tres Hermanos Mine Project

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http://www.dorexinc.com 

Dorex Minerals Inc. identifies and expands a new mineralization model 
for the Tres Hermanos Mine project 

Dorex Minerals Inc. ( DOX 

http://www.stockwatch.com/Quote/Detail.aspx?action=go&symbol=DOX&region=C&lookup=symbol&snapshot=default 

: TSX-V) announces that it has received the results from its 
successfully completed Phase I field exploration and geochemical 
rock-sampling program on the Tres Hermanos Mine Property. The purpose of 
the Phase I exploration program was to generally orient the Company with 
the Project, to identify the primary mineralization model and to 
generate future exploration targets, including drill testing. 

Historically documented gold assays from the mine workings are limited; 
however, the reported yield from the upper workings was 47.9 grams per 
tonne gold and the lower workings 16.5 g/t gold. Documented assays from 
levels two to six of the eight levels in 1980 returned from 0.9 g/t gold 
to 190 g/t gold (6.1 ounces gold) including an assay of 29.2 g/t from 
level 6. Gold-copper assays from surface samples of the mineralized 
system on the property collected by Dorex personnel returned elevated 
gold values from trace up to 5.75 g/t and from trace to 0.74 per cent 
copper. From the initial discovery of gold on the property in 1903, an 
undocumented report of 22,500 ounces of gold was extracted from 1914 to 
1916, which was followed by processing of the ores in the mill of 
30-tons-per-day capacity and the recovery of documented 275 kilograms of 
gold. Old Mine operations of the Tres Hermanos Property encompass a 
mineralized structure shoot of approximately 220m deep by 140m wide. 

The 2012 Dorex program resulted in the collection and analysis of 438 
samples (including QA/QC samples). In general the sampling program was 
divided into two targets, systematic surface chip sampling of 1 meter 
chip samples wherever exposure was encountered, and the sampling of the 
currently accessible underground workings on 1 metre chip sample 
intervals. Results from the program include assays from trace up to 8.15 
g/t Au, from trace up to 436 g/t Ag, and from trace up to 12% Cu; all 
from 1 metre surface chip samples. 

The project is now interpreted to consist of five related mineralized 
zones, the Southern Extension, the East Zone, the Connector Zone, the 
Dominadora Zone and the Main Zone, together representing an 
approximately 2 kilometre long mineralized corridor, with each of these 
zones offset from each other by cross-cutting, post-mineralization 
faults. On average, this corridor is 30-50 metres wide over a greater 
than 2 kilometre strike length, with only the Main Zone having seen any 
advanced exploration (mining) to date. The Southern Extension Zone 
represents an interpreted anomalously mineralized structural trend at 
least 30m wide and extending south from the Property boundary by at 
least 400m. This zone returned assays from trace up to 1.7g/t Au and 
from trace up to 6.5% Cu. The anomalous trend highlights the 
structurally controlled gold and copper mineralization extending south 
from the Property. 

The Connector zone consists of two distinct mineralized anomalies, the 
East and West Connector Zones, and is interpreted as a newly defined 
structural zone offset from the Main and South Extension Zones. The East 
Connector Zone is defined by a strongly leached mineralized structure 
approximately 42 metres wide, assaying from trace up to 0.44% Cu, from 
trace up to 11 g/t Ag, and from trace up to 372ppb Au. The West 
Connector Zone was mapped as a 30 metres wide strongly leached 
mineralized area, reporting from trace up to 1g/t Au, 55g/t Ag and 0.39% 
Cu. This zone also returned the highest base metal (Pb, Zn) of all the 
zones, suggesting a potential for vertical zonation within the 
mineralized system. The highest silver results reported from the Phase I 
program (543ppm Ag) were also sampled from within this zone and were 
associated with extensive scorodite mineralization on fractures and 
related water seeps. 

The Main Zone is punctuated by the location of the Tres Hermanos Mine, 
which was entered and sampled during the course of the program. Full 
mine access is precluded by ground conditions and mine flooding, and 
currently only the main access level is accessible. During underground 
(and spoil pile) mapping and sampling, neither epithermal veins nor vein 
material were encountered; rather, a mineralized, hydrothermally altered 
breccia with visible copper oxide mineralization (malachite and azurite) 
was the apparent target of historic mining operations. The underground 
sampling returned assays from trace to 2.4 g/t Au over 1 meter chips and 
from trace to 1.7% Cu. 

The Main Zone surface sampling returned assay values from trace up to 
8.15g/t Au, from trace up to 55g/t Ag, and from trace up to 12% Cu over 
1 metre chip samples. Within this zone, mineralization has been 
demonstrated to continue across at least 40 metres true width in 
equivalent brecciated units as found in the Main Zone underground 
workings. 

Within the Dominadora Zone, surface sampling of 1 metre chip samples 
returned values from trace to 2.3 g/t Au, from trace to 14.8 Ag, and 
from trace to 0.14% Cu. Mineralization is equivalent to that found in 
Main Zone, further highlighting the evidence for the continuity of 
gold-copper mineralization within the structural corridor. 

The program was successful in identification of anomalous gold-copper 
mineralization within the expected ranges associated with a mineralized 
system of this style. Further, Dorex has identified a new mineralization 
model for the THM project. 

President Julius Galik commented, "Dorex is excited with the positive 
Phase I THM results. With the confirmation of gold-copper mineralization 
on the THM property, and a re-evaluation of the mineralization model 
management has turned its head towards reviewing the data compilation 
and assessing the Project's potential to host structurally related gold 
mineralization over consistent widths and lengths ." 

A map highlighting the areas sampled and results obtained from the 
program will be made available on Dorex's website. 

A total of 438 samples were delivered by Dorex personnel to Inspectorate 
Laboratory preparation facility in Durango, Mexico where samples were 
sorted and crushed to appropriate particle size (pulp) and 
representatively split to a smaller size for shipment to Inspectorate's 
Vancouver analysis facility. There, the samples were assayed using their 
GENX30 analysius package, which is a 30 element ICP, cold vapour Hg and 
Fire Assay Au with automatic overlimits for Au, Ag, Cu. A comprehensive 
system of standards, blanks and field duplicates was implemented in the 
2012 exploration program and has been analyzed by the Project QP with no 
irregularities noted. Paul D. Gray, PGeo, is the company's qualified 
person with respect to the company's THM gold project and has reviewed 
and approved this press release. 

About Dorex Minerals 

Dorex Minerals Inc. is a base and precious metals exploration and 
development Company listed on the TSX Venture, Frankfurt Exchange under 
the symbol "DOX" and code "A9L". The Company is focused on discovering 
and advancing mineral properties by utilizing modern geological science. 
Managed by a team of experienced professionals, the Company's corporate 
philosophy is to build shareholder wealth through the acquisition and 
development of high quality exploration projects. Dorex's portfolio is 
currently focused in Mexico and the Slovak Republic. 

Further information about Dorex can be obtained from the website 
www.dorexinc.com 

http://www.dorexinc.com 

, e-mail dorexinc at gmail.com or by phoning 604-688-1160. 

ON BEHALF OF THE BOARD OF DIRECTORS, 

"Julius Galik" 

Julius Galik 

President & CEO 

Neither the TSX Venture Exchange nor its Regulation Services Provider 
(as that term is defined in the policies of the TSX Venture Exchange) 
accepts responsibility for the adequacy or accuracy of this news 
release. 

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