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Desert Sun Outlines New Conglomerate Zone at Jacobina Mine, Bahia Brazil.


TORONTO -- - Deep drilling program initiated to test main ore zone at depth

DESERT SUN MINING CORP. (TSX TSX Toronto Stock Exchange (TSE before April, 2002)
TSX Transfer from Stack Pointer to Index
TSX True Space Extension
:DSM 1. DSM - Data Structure Manager.

An object-oriented language by J.E. Rumbaugh and M.E. Loomis of GE, similar to C++. It is used in implementation of CAD/CAE software. DSM is written in DSM and C and produces C as output.
)(AMEX AMEX

See: American Stock Exchange
:DEZ DEZ Dezember (German: December)
DEZ Disease Eradication Zone
DEZ Death Egg Zone (Sonic 2/3 & Knuckes level)
DEZ Di-Ethylzinc
) reports that it has encountered a new conglomerate reef the Foot Wall Reef (FW reef), approximately 40 meters in the footwall foot·wall  
n. Geology
1. The mass of rock underlying a mineral deposit in a mine.

2. The underlying block of a fault having an inclined fault plane.
 of the ore zone that is currently being mined. The new reef was encountered during main access ramp development at the 555 meter level and the 530 meter level. Work has included development of two cross-cuts to fully expose the reef on the 530 and 555 meter levels, channel sampling and diamond drilling Diamond Drilling is a highly specialized industry used for mineral exploration around the world. Most commonly using wireline and core bits with diamond encrusted matrix. To drill holes to max depths of twelve thousand feet, for the recovery of core used in verifying mineral .

An ongoing development program has exposed the FW reef over a continuous strike length of 180 meters and a step-out drilling program is underway. Drill hole JBA-390 intersected 5.2g Au/t over 0.6m true width within a broader zone of low grade mineralization Mineralization
The process by which the body uses minerals to build bone structure.

Mentioned in: Rickets

mineralization,
n the bioprecipitation of an inorganic substance.
 (0.58g Au/t over an 8.3m true width) in the FW reef 200 metres north of the 530 level cross cut, suggesting a potential strike length of over 300 metres. The FW reef is open along strike both to the north and south as well as down-dip.

Significant channel sampling results from the cross-cuts are as follows:

- 4.25g Au/t over a true width of 9.05m in the 530 level cross cut

- 3.38g Au/t over a true width of 8.40m in the 555 level cross cut

"The discovery of the FW reef close to our current production area is a very exciting development for Desert Sun," commented Peter Tagliamonti, P.Eng. Vice President of Operations and COO. "A program is underway to further define the limits of this zone and estimate a resource and reserve. The preliminary grades and widths we are seeing would enable us to use our present equipment and infrastructure to mine this zone."

Geological work by DSM mine staff and a recent review of the new zone by Dr. Paul Karpeta, a well known expert on Precambrian conglomerate-hosted gold deposits, indicates that the FW Reef is probably a north-south oriented gravel channel fill which likely lenses out laterally before it reaches the surface. The reef is typically a very coarse conglomerate with fracturing and widespread hematite hematite (hĕm`ətīt), mineral, an oxide of iron, Fe2O3, containing about 70% metal, occurring in nature in red to reddish-brown earthy masses and in steel-gray to black crystalline forms.  alteration. There appears to be two stages of gold mineralization - an earlier pyrite-gold stage which has been overprinted by a later hydrothermal hydrothermal, hydrothermic

relating to the temperature effects of water, as in hot baths.
 hematite-gold stage related to cross-cutting fractures; the latter appears to be responsible for the elevated grades seen in several areas. Dr. Karpeta commented "This is one of the conglomerate channels that trend along strike and hence do not necessarily crop out on surface. Where they are intersected by cross-cutting mineralizing fracture systems, they can be significantly upgraded. Other such "blind" conglomerate channels can be expected."

Deep Drilling Program Initiated at Jacobina Mine

A deep drilling program has been initiated at the Jacobina Mine (Joao Belo Zone) to test the potential down dip extension of the ore zone to a depth of 600 metres below the main haulage level and along strike to the south. A total of eight holes are planned totaling 6,700 metres. Three surface drills are currently working at the site on this program with the first 4-5 holes expected to be completed by the end of this year.

"We expect that this drill program will be able to significantly expand our inferred mineral resources," Peter Tagliamonte commented. "Experience at the Jacobina Mine indicates that the conversion rate of inferred resources to indicated is generally quite high. Knowing the location and extent of these resources will enable more effective mine exploration and development."

Assaying for the program was carried out at the mine site laboratory which is an independent laboratory operated for the Jacobina mine by SGS SGS Société Générale de Surveillance
SGS Symantec Gateway Security (appliance)
SGS School of Graduate Studies
SGS Subgrid Scale
SGS Singapore Government Securities
SGS Shell Global Solutions
 Lakefield Geosol, an ISO (1) See ISO speed.

(2) (International Organization for Standardization, Geneva, Switzerland, www.iso.ch) An organization that sets international standards, founded in 1946. The U.S. member body is ANSI.
 9001, 2000 laboratory based in Brazil, using fire assay on 50 gram pulps. Blanks, duplicates and independent standard reference samples are inserted at regular intervals into each batch of analyses. The mine laboratory uses the full SGS QA/QC QA/QC Quality Assurance/Quality Control  protocols and participates in regular intra-laboratory checks. Security is maintained at the core logging and sampling facility. Peter Tagliamonte, P.Eng., is the Qualified Person as defined under National Instrument 43-101 responsible for all mining and engineering work at the Jacobina Mine. Dr. Bill Pearson, P.Geo. is the Qualified Person as defined under National Instrument 43-101 responsible for the geoscientific and technical work.

Desert Sun Mining is a Canadian gold mining company listed on the Toronto Stock Exchange Toronto Stock Exchange (TSE)

Canada's largest stock exchange, trading approximately 1,200 company stocks and 33 options.
 and the American Stock Exchange American Stock Exchange (AMEX)

Stock exchange in the U.S. Originally known as “the Curb,” it began as an outdoor marketplace in New York City c. 1850. It moved indoors to its present location in the Wall Street area in 1921.
 with 100% ownership of the Jacobina Mine and the 155 km long Bahia Gold Belt in the state of Bahia, in northeastern Brazil. Proven and Probable mineral reserves in the Jacobina Mine area are 17,620,000 tonnes at 2.11 g Au/t containing 1,200,000 ounces of gold. As a result of the Desert Sun's exploration programs to date, Measured and Indicated resources total 24,800,000 tonnes at 2.53 g Au/t containing 2,050,000 ounces of gold, and Inferred Resources total 22,200,000 tonnes at 2.61 g Au/t containing 1,900,000 ounces of gold. The mineral reserves are included within the Measured and Indicated mineral resources. For additional information, contact Naomi Nemeth, Vice President, Investor Relations Investor relations

The process by which the corporation communicates with its investors.
 at 416-861-5901 (info@desertsunmining.com) or visit Desert Sun's website at www.desertsunmining.com.

Statements in this release that are not historical facts are "forward-looking statements" within the meaning of the U.S. Private Securities Litigation Reform Act The Private Securities Litigation Reform Act of 1995 (PSLRA) implemented several significant substantive changes affecting certain cases brought under the federal securities laws, including changes related to pleading, discovery, liability, class representation and awards fees and  of 1995. Readers are cautioned that any such statements are not guarantees of future performance and that actual developments or results may vary materially from those in these "forward-looking statements". This news release also uses the terms "measured resources", 'indicated resources' and 'inferred resources'. Desert Sun Mining Corp. advises investors that although these terms are recognized and required by Canadian regulations (under National Instrument 43-101 Standards of Disclosure for Mineral Projects), the U.S. Securities and Exchange Commission does not recognize them. Investors are cautioned not to assume that any part or all of the mineral deposits in these categories will ever be converted into reserves. In addition, 'inferred resources' have a great amount of uncertainty as to their existence, and economic and legal feasibility. It cannot be assumed that all or any part of an Inferred Mineral Resource will ever be upgraded to a higher category. Under Canadian rules, estimates of Inferred Mineral Resources may not form the basis of feasibility or pre-feasibility studies, or economic studies except for Preliminary Assessment as defined under 43-101. Investors are cautioned not to assume that part or all of an inferred resource exists, or is economically or legally mineable.

Desert Sun Mining Corp. (TSX:DSM) (AMEX:DEZ)
COPYRIGHT 2005 Business Wire
No portion of this article can be reproduced without the express written permission from the copyright holder.
Copyright 2005, Gale Group. All rights reserved. Gale Group is a Thomson Corporation Company.

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Publication:Business Wire
Geographic Code:1CANA
Date:Nov 21, 2005
Words:1115
Previous Article:Desert Sun Further Confirms Major Extension at Canavieiras in Jacobina Mine Area, Bahia, Brazil.
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