Prospero Silver Corp.: Rock-Chip Sampling Yields Highly

Prospero Silver Corp.: Rock-Chip Sampling Yields Highly Anomalous
Gold in the Petate West/Apartadero Target Zone, El Petate Project,
State of Hidalgo 
VANCOUVER, BRITISH COLUMBIA -- (Marketwire) -- 01/21/13 -- Prospero
Silver Corp. (TSX VENTURE:PSL) ("Prospero" or the "Company") is
pleased to announce the results of 360 rock chip samples obtained
from the Petate West and Petate East target zones of its 6,000
hectare El Petate project. The Apartadero target is part of the
Petate West zone, measuring 1.3 km long and up to 200 meters wide and
has shown the most anomalous gold geochemistry to date in jasperoid
outcrops and float. Mapping of the Petate West zone shows northwest
and east-west trending silicified zones associated with andesitic
dikes with the same orientation (Figure 1). Mapping and sampling have
to date identified the La Escoba, Apartadero and and Tecolotes
silicified reefs. Other as yet unmapped reefs are anticipated west of
the Apartadero reef and in the southern extension of the Petate West
zone (see attached maps). The property boundary lies outside the area
of the figures.  
The highlights of the Apartadero geochemistry include: 


 
--  Assays in the range of 1 to 6.62 ppm Au occur along a length of 500
    meters in the southeast extension of the Apartadero target. The
    geochemical values are presented over subdued geology. 
--  These expand to a length of 1100 meters for assays above 0.1 ppm Au (see
    Figure 2); 
--  The silver geochemistry in the Apartadero trend exhibits anomalous
    values between 1 to 6.4 ppm (Figure 3). 
--  Multi-elemental pathfinder geochemistry revealed elevated mercury,
    arsenic and antimony anomalies associated with the precious metals. 
    1.  Mercury with values between 10 ppm to greater than 100 ppm is
        closely associated with the higher gold geochemistry (Figure 4); 
    2.  Antimony geochemistry also closely follows gold values, with the
        higher values in the 100-400 ppm range concentrated in the southeast
        sector of the Apartadero target area; 
    3.  Similarly, arsenic values above 100 ppm follow the gold anomalies,
        and exhibit a hot spot in the Apartadero area, where the highs
        mostly range from 100 ppm to 400 ppm;
--  Other elements such as barium are also high in the Apartadero area with
    highs ranging from 1000 ppm to 10,000 ppm.

 
While the Apartadero geochemistry is highly anomalous in gold in its
southeast extension, the data to date from the Petate East
geochemistry is showing proportionately higher silver geochemistry as
follows: 


 
--  The Petate # 1, #2, and # 3 targets, in the eastern zone of the project
    area, exhibit higher rock-chip silver geochemistry with assays commonly
    above 50 ppm (Figure 3); 
--  Higher iron and manganese geochemistry is associated with the Petate
    East targets with anomalous values in the single to double digit percent
    range.

 
Other Target areas. 
La Escoba areas in the northwest portion of the district is divided
into Escoba North, Escoba Central, and Escoba south silicified
trends. These are characterized by more subtle precious metal and
pathfinder-element anomalies, with gold highs in the 0.1 to 1 ppm
range, silver highs under 5 ppm, and mercury highs under 5 ppm.  
The Tecolotes area in the southwest sector of the district also
exhibits significant highs in Au-Ag-Sb-Hg-As (Figures 2 to 4).  
Samples obtained from the reconnaissance sampling program represent
chip-grab, chip-channel samples, as well continuous channel samples,
either in outcrops or in jasperoid boulders and fragments within
float. Most samples were obtained along lengths of 1.0 to 1.5 meters. 
Next-step activities for the Petate project: 
The Apartadero area (in the Petate West zone), and the Petate East
areas are prime targets which require a trenching program in zones
where the best precious metal anomalies occur, particularly along the
northeastern margin of the Apartadero trend which hosts discontinuous
outcrops of dikes. Channel sampling in the trenches should provide a
better understanding of the length, width and grade of the
mineralized zone(s).  
Additional reconnaissance mapping and sampling is required west of
the Apartadero area and in the southwestern sector of the district.  
The Tecolotes area is believed to host several silicified reefs yet
to be mapped and sampled in more detail.  
The geology of the project is characterized by an anticlinorium/dome
of the Mesozoic fold belt of the Sierra Madre Oriental. All mineral
occurrences are hosted in the El Abra limestone of Lower Cretaceous
age. A north-south trending remnant of the Upper Cretaceous clastics
of the Mendez Formation is as yet un-eroded in a recumbent syncline
between the Petate West and Petate East zones (see Figure 1).
Scattered outliers of overlying andesites of the Tertiary Pachuca
Group do not host alteration or hydro-thermalism, thus suggesting the
hydrothermal system is more akin to the age of the Zimapan
skarn/replacement type deposit (approx. 42 Ma), than the age of the
Pachuca vein deposit (approx. 23 Ma).  
In summary, the Apartadero zone highlights stronger gold values
associated with Ag-Hg-Sb-As, whereas the Petate East areas are
characterized by stronger silver values in association with
Au-As-Ba-Fe-Mn. These preliminary results show strong geochemical
signatures in the Apartadero and Petate East target areas, including
multi-ppm values in gold at Apartadero, and greater than 50 ppm Ag at
Petate East. Given the length of the silicified reefs, the Petate
project area represents a robust system with excellent potential to
host a preserved replacement type deposit at depth with elevated
precious metals.  
Fluid inclusion petrography indicates the fluids associated with
deposition of crystalline quartz are relatively low temperature and
salinity (130 degrees C to 230 degrees C; 0-3.0 wt.% NaCl equiv)
indicating the surface exposures across the project area correspond
to the upper portions of a preserved mineralized system at depth.  


 
--  The geochemical signature of the western Petate zone (Au-Ag-Hg-Sb-As) is
    more indicative of low-sulfidation hydrothermalism, whereas 
--  The East Petate zone geochemistry (Ag-Au-Fe-Mn) is more indicative of
    intermediate-sulfidation hydrothermalism. 

 
Tawn Albinson, M.Sc., President of the Company, is a Qualified
Person, as defined in NI 43-101, and is responsible for the technical
content of this press release. Samples were collected by Company
employees and are shipped in sealed bags to ALS-Chemex Laboratory
preparation facilities in Zacatecas City. Sample pulps are shipped to
ALS-Chemex Laboratories in North Vancouver, B.C. for analysis. All
samples were assayed by multielemental ME-ICP41, and gold ICP21.  
To view Figures 1, 2, 3 and 4 please click on the following link:
http://media3.marketwire.com/docs/PSL0121.pdf  
About Prospero Silver Corp.: 
Prospero is a Canadian resource company with the majority of its
staff based in Mexico and who work for its wholly owned subsidiary
Minera Fumarola, SA de CV (Fumarola). Prospero's objective is to
quickly evaluate the properties currently optioned for their
suitability to provide size potential and/or amenability for
strategic joint ventures. 
Forward-Looking Statement Cautions: 
This news release contains certain "forward-looking statements"
within the meaning of Canadian securities legislation, relating to
the closing of a non-brokered Private Placement. Although the Company
believes that such statements are reasonable, it can give no
assurance that such expectations will prove to be correct.
Forward-looking statements are statements that are not historical
facts; they are generally, but not always, identified by the words
"expects", "plans", "anticipates", "believes", "intends",
"estimates", "projects", "aims", "potential", "goal", "objective",
"prospective", and similar expressions, or that events or conditions
"will", "would", "may", "can", "could" or "should" occur, or are
those statements, which, by their nature, refer to future events.
Factors that could cause actual results to differ materially from
these forward looking statements include, but are not limited to,
variations in the nature, quality and quantity of any mineral
deposits that may be located, the Company's inability to obtain any
necessary permits, consents or authorizations required for its
planned activities, and the Company's inability to raise the
necessary capital or to be fully able to implement its business
strategies. The reader is referred to the Company's reports, publicly
available through the Canadian Securities Administrators' System for
Electronic Document Analysis and Retrieval (SEDAR) at www.sedar.com,
including the risk factors discussed in Prospero's November 27, 2009
prospectus. Except as required by securities laws and the policies of
the TSX Venture Exchange, Prospero disclaims any intention or
obligation to update or revise any forward-looking statement, whether
as a result of new information, future events or otherwise.  
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 release. 
Contacts:
Prospero Silver Corp.
William Murray
Chairman
(604) 248-0797 
Contact Financial
Kirk Gamley
(604) 561-3642
 
 
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