Marifil Mines Ltd.
TSX VENTURE : MFM

Marifil Mines Ltd.

December 04, 2007 10:00 ET

Marifil Mines Ltd.: San Roque Drill Intercepts 11.7 Meters (m) at 174.4 Grams Per Ton (g/t)Indium; 3.0 m at 208 g/t Indium; and 1.0 m at Greater Than 1,500 g/t

SPOKANE, WASHINGTON--(Marketwire - Dec. 4, 2007) - MARIFIL MINES LTD. (TSX
VENTURE:MFM) ("Marifil" or "the Company") announces that the first three drill holes in the second round of drilling (in progress) cut good values of indium (see Table 1 below) in a large, open-ended breccia zone around the Del Indio vein on the Company's 100 percent owned San Roque, Argentina property. This breccia zone also contains significant amounts of zinc, lead, gold, and silver. The impressive indium grades are attracting attention from several of the world's largest indium producers to visit the property. The Company is entertaining proposals for a joint exploration and exploitation of its unusual find.

Richard Walters, Marifil's Executive Vice-President remarks, "This is turning into a large and exciting metal deposit which is open to expansion through step out drilling. I am particularly encouraged by the presence of such a large sulfide system that permeates the basement schist as well as the overlying volcanics. I strongly suspect there is a big underlying porphyry heat engine driving it."

The Del Indio vein (see Marifil news releases of November 9, 2006 and February 15, 2007) has been re-named the Del Indio Breccia because it is one of a number of sub-parallel indium-bearing structures within a breccia zone. Drill penetrations have now increased the size of this breccia to approximately 600 meters long by 300 meters wide. It is elongated northeast and open-ended to the southwest, southeast, northeast, and at depth. While higher indium values are associated with structural zones and gold-bearing quartz veins, all of the intervening rocks are mineralized with stockwork lead-zinc veins and veinlets as well as disseminated zinc. The gold enriched Del Indio vein roughly marks the northwestern side of the deposit.

Marifil Mines plans to drill another 1,000 meters during the current campaign and then begin a larger more aggressive drill program during the first quarter of 2008. The company has completed a ground gravity survey to help determine if the base metal mineralization is part of an overlying or margin shell to a porphyry copper or porphyry molybdenum system. Analysis of this data is in progress.

This press release has been reviewed and approved by John Hite, President of Marifil Mines Ltd. under whose direction the exploration program is being carried out. Mr. Hite is a Qualified Person as defined by National Instrument 43-101.

The statements made in this press release may contain forward-looking statements that may involve a number of risks and uncertainties. Actual events or results could differ materially from the Company's expectations and projections.

For further information regarding Marifil Mines Ltd., please refer to the Company's filings available on SEDAR (http://www.sedar.com) or at Marifil's Website (http://www.marifilmines.com.)



TABLE 1

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DDH From (m) To (m) Length interval @ Indium
(m) (g/t)
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49.00 49.50 0.50 0.50 m @ 80.58
------------------------------------------------
------------------------------------------------
65.50 66.00 0.50 0.50 m @ 26.05
------------------------------------------------
------------------------------------------------
88.60 89.20 0.60 0.60 m @ 138.45
------------------------------------------------
------------------------------------------------
DDH29 115.70 116.60 0.90 0.90 m @ 12.53
------------------------------------------------
------------------------------------------------
122.20 124.70 1.00 2.50 m @ 44.12
------------------------------------------------
------------------------------------------------
130.80 131.60 0.80 0.80 m @ 166.79
------------------------------------------------------

------------------------------------------------------
7.50 8.40 0.90 0.90 m @ 10.37
------------------------------------------------
------------------------------------------------
10.10 14.00 1.00 3.90 m @ 73.13
------------------------------------------------
------------------------------------------------
16.30 17.50 1.20 1.20 m @ 31.03
------------------------------------------------
------------------------------------------------
20.00 29.40 0.90 9.40 m @ 52.68
------------------------------------------------
------------------------------------------------
DDH30 32.30 36.90 1.30 4.60 m @ 63.08
------------------------------------------------
------------------------------------------------
38.00 44.60 1.00 6.60 m @ 49.82
------------------------------------------------
------------------------------------------------
46.40 51.70 1.00 5.30 m @ 54.27
------------------------------------------------
------------------------------------------------
60.00 61.00 1.00 1.00 m @ 32.97
------------------------------------------------
------------------------------------------------
63.50 66.80 0.50 3.30 m @ 97.50
------------------------------------------------------

------------------------------------------------------
82.70 83.40 0.70 0.70 m @ 590.64
------------------------------------------------
------------------------------------------------
97.00 98.00 1.00 1.00 m @ 36.33
------------------------------------------------
------------------------------------------------
104.00 107.00 1.00 3.00 m @ 208.00
------------------------------------------------
------------------------------------------------
117.00 120.00 1.00 3.00 m @ 140.69
------------------------------------------------
------------------------------------------------
Greater
than
129.60 130.6 1.00 1.00 m @ 1500
------------------------------------------------
------------------------------------------------
DDH31 153.40 154.50 1.10 1.10 m @ 162.72
------------------------------------------------
------------------------------------------------
191.00 192.20 1.20 1.20 m @ 58.26
------------------------------------------------
------------------------------------------------
198.50 199.50 1.00 1.00 m @ 26.56
------------------------------------------------
------------------------------------------------
202.40 203.40 1.00 1.00 m @ 26.60
------------------------------------------------
------------------------------------------------
238.60 239.20 0.60 0.60 m @ 76.33
------------------------------------------------
------------------------------------------------
240.80 252.50 0.60 11.70 m @ 174.38
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