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La Mina Porphyry Gold Project, Colombia
Overview
La Mina (also known as Fredonia and Venecia) is an early-stage porphyry gold-copper project located in the Middle Cauca volcano-plutonic belt in the Department of Antioquia about 45 km southwest of Medellin. The Middle Cauca belt is known to host large porphyry gold deposits such as AngloGold's La Colosa (12.9 Moz Au contained in 468 Mt @ 0.86 g/t Au) and Sunward Resources' Titiribi (3.7 Moz Au contained in 230 Mt @ 0.5 g/t Au).
The property is accessible by paved and improved dirt roads. The known discovery is located between 1,750- 1,850 m with power, water, and labor readily available.
Project History
The La Mina concession has been the subject of geologic mapping and rock, trench & stream-sediment sampling. A joint venture between AngloGold Ashanti and Bema Gold (later B2Gold) drilled six holes into the La Mina porphyry in mid-2006. Work after the drilling included a detailed regional airborne magnetic/radiometric survey followed by soil and rock geochemical sampling over identified airborne magnetic anomalies.
Exploration Targets
Most gold and copper discovered thus is spatially associated with quartzmagnetite-chalcopyrite+/-bornite veinlets in potassic altered porphyry and breccias containing elevated quantities of hydrothermal magnetite. As a result, the gold-bearing rocks are highly magnetic.
La Cantera
AngloGold Ashanti/Bema Gold drilled six holes into the La Cantera porphyry target. Holes 2 and 5 yielding 90+ m intercepts of greater than 1 g/t Au and significant copper at shallow depths. Drill-holes 4 and 6 also contained significant values located near the surface.
Exploration Plans
Bellhaven geologists are currently re-logging the diamond core to gain a better understanding of the various rock types and controls emplacing gold and copper at La Mina. In addition, geologists are evaluating several key magnetic anomalies that are known to coincide with elevated soil- and rock-chip geochemical anomalies. Bellhaven plans to initial a small drilling program at the La Cantera zone as soon as practically possible--likely summer 2010.
La Mina Press Releases
January 19, 2012
Bellhaven Expands the Middle Zone Prospect with New Drilling: Advances toward New Resource in First Half of 2012
November 15, 2011
Bellhaven Announces that Initial Metallurgical Studies Demonstrate High Gold and Copper Recoveries for the La Mina Gold-(Copper) Project, Colombia
October 31, 2011
Bellhaven Files National Instrument 43-101 Mineral Resource Estimate Report for the La Mina Gold-Copper Project, Colombia
October 26, 2011
Bellhaven Announces Strategic Investment by IAMGOLD
October 6, 2011
Bellhaven Increases Thickness of Middle Zone Prospect by Drilling 102 Meters Grading 0.71 g/t Au and 0.24% Cu at the La Mina Project, Colombia
September 13, 2011
Bellhaven Receives Maiden NI 43-101 Resource Estimate for La Mina Gold-(Copper) Project, Colombia
August 2, 2011
Bellhaven Expands Mineralization Footprint at the La Mina Project with New Gold-Copper Intercepts at the Middle Zone and Filo de Oro Prospects
June 28, 2011
Bellhaven Completes Initial Drilling Campaign at La Cantera, La Mina, Colombia
May 12, 2011
Bellhaven Files NI 43-101 Technical Report for the La Mina Porphyry Gold-(Copper) Project, Colombia
May 9, 2011
Bellhaven Drills Third Consecutive 200-Plus-Meter Intercept at La Cantera, La Mina, Colombia
April 20, 2011
Bellhaven Drills Promising First Hole at El Limon Prospect, La Mina, Colombia
April 6, 2011
Bellhaven Drills Consecutive 200-Plus-Meter Intercept at La Cantera, La Mina, Colombia
March 24, 2011
Bellhaven Commissions Metallurgical Study for the La Mina Gold-(Copper) Project, Colombia
March 22, 2011
Bellhaven Commissions NI 43-101 Technical Report for the La Mina Gold-(Copper) Project, Colombia
March 9, 2011
Bellhaven Makes New Discovery at Filo de Oro, La Mina, Colombia
February 28, 2011
Bellhaven Drills 1.62 g/t Au and 0.44% Cu (2.4 g/t AuEq) over 98.2 Meters at La Cantera, La Mina, Colombia
February 15, 2011
Bellhaven Identifies Three New Geophysical Targets at the La Mina Porphyry Gold-(Copper) Project, Colombia
January 24, 2011
Bellhaven Drills 73 meters of 0.50 g/t Au and 0.25% Cu (0.92 g/t AuEq) at the La Mina Phorphyry Gold- (Copper) Project, Colombia
December 15, 2010
Bellhaven Commences Ground Geophysical Surveys at the La Mina Porphyry Gold-(Copper) Project, Colombia
December 13, 2010
Bellhaven Drills 1 g/t Au and 0.36% Cu (1.6 g/t AuEq) over 126 Meters at the La Mina Porphyry Gold-(Copper) Project, Colombia
November 17, 2010
Bellhaven Drills Gold-Copper Zone Starting at Surface at the Middle Zone, La Mina Porphyry Gold-(Copper) Project, Colombia
DDH-13: 76.83 m @ 0.70 g/t Au & 0.27% Cu (1.2 g/t AuEq) starting at 1.52 m
November 2, 2010
Bellhaven Drills 94 m of 1.42 g/t AuEq at the Middle Zone, La Mina Porphyry Gold-(Copper) Project, Colombia
October 12, 2010
Bellhaven Cuts Western Edge of the Middle Zone, La Mina Porphyry Gold-(Copper) Project, Colombia
Drill intercepts demonstrate 400-m vertical dimension to the Middle Zone
September 09, 2010
Bellhaven Drills Wide Intercepts of Gold and Copper at La Mina Porphyry Gold-(Copper) Project, Colombia. Drill intercepts extend known gold-copper zone from surface to a minimum depth of 270-m below the surface.
July 27, 2010
Bellhaven Commences Drilling at the La Mina Porphyry Gold-(Copper) Project Colombia. Option Agreement Signed for Surface Rights over a Portion of the Concession.
July 15, 2010
Bellhaven Receives Channel Samples from Two Exposures Containing 1.1 and 0.9 g/t Gold over 22 and 14m. Respectively, at the La Cantera prospect of the La Mina Porphyry Gold Project, Colombia. Drill Rig Now on Route to the La Mina Project.
June 24, 2010
Bellhaven Receives Channel Samples from Two Exposures Containing 0.7 g/t Gold at the Middle Zone of the La Mina Porphyry Gold Project, Colombia. Channel Samples Confirm Second Porphyry Gold Center at La Mina.