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projectsoverviewtagpura-maangob
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cadan porphyry copper-gold corridor
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 Arturo Barnachea prospecting at new Comval copper-gold prospect |
Cadan porphyry copper-gold
has a potential tonnage range between 450 million and 900 million tonnes. It is a regionally significant new discovery, the first of its type in this region for 25 years. Copper and gold grades will be determined during first phase drilling. | |||
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Cadan has made a significant new discovery known as the Cadan Porphyry Copper-Gold Prospect. Cadan has a potential tonnage range between 450 and 900 million tonnes. See the News Release dated April 24th 2007 or the NI 43-101 compliant disclosure (PDF 1.69MB). Cadan porphyry copper gold is a regionally significant new "discovery" in the south eastern area of the highly prospective East Mindanao mineralised district and is the first new discovery of its type in this region for some 25 years. It is the result of progressive exploration since a reconnaissance geophysical line (Induced Polarisation or "IP" method) first hit the eastern extremity of the anomaly in late 2004. Using closely spaced geophysics, detailed surveying, mapping and sampling covering the some 6 square kilometres: then line-by-line, month-by-month, the true geophysical picture of Cadan began to emerge.
mineralisationWhile the copper and gold grades of Cadan porphyry copper gold target will not be known until first phase drilling is completed, the historical average for known deposits in this region are set out below and are indicative of the possible potential tonnage and copper and gold content of the new prospect. Examples demonstrating the regional grade in this region include: North Davao Mining Corporation area called Amacan, now owned by the government, with an in-ground resource of 65mt at 0.34% Copper (reference: North Davao Mining Corporation report titled "Amacan Copper and Hijo Gold Projects Information Memorandum" undated circa 1996); King King Copper Gold Project with a resource estimated by TVI Pacific Incorporated and Echo Bay Mines of Canada (Level 1 Feasibility announced April 29, 1997, "Echo Bay Reports 1st Quarter Results") of 438.8 MT at an overall grade of 0.342% total copper and 0.015 ounce per ton gold, and Tampakan Copper Gold Project with a measured Resource of 568MT at 0.71% Cu and 0.29 g/t Au and an Indicated Resource of 836MT at 0.58 %Cu and 0.22 g/t Au. It also has an Inferred Resource of 566MT at 0.49% Cu and 0.18 g/t Au. (reference: Indophil Resources NL, published resource JORC Code, September 30 2006). Also note that Amacan "in-ground resource" and the King King Copper Gold Project "resource" do not conform to the CIM Standards and are only provided as an indication of regional mineralisation potential. The projects mentioned in the above paragraph are not assets of Cadan. The Cadan prospect geology supports the geophysical model with surface Expression showing alteration features including Magnetite (+10%), Actinolite, Biotite, Epidote, Pyrite - vein and disseminated, traces of chalcopyrite (vein and disseminated) and propylitic altered rocks to north of anomaly: also discovered are zones of quartz veining, brecciation and, from initial sampling, anomalous copper and gold geochemistry. The technical team is completing follow-up geological mapping and trenching to better define the geophysical targets for drilling. Cadan is encouraged that in a trench located over the central part of the anomaly there is intense stockwork magnetite/sulphide (now oxides) veining and areas with brecciation. The latest trenching results confirming the large anomalous copper area first identified by the geophysical anomaly of the Cadan Cooper Gold Porphyry with trenching returning copper values 15 times the local background copper values. The following compilation map showing locations of sampling and trenching (and proposed trenching) overlain on an image of the geophysical (IP) anomaly.
The geophysical and geological results mean that the exploration risk at the Cadan Porphyry Prospect has now been reduced by advancing the prospect from grass roots exploration to a defined advanced exploration target. |
maps satellite map  philippines map  surface sample  satellite map of projects  satellite map close-up of Comval projects models  chargeability 25ms  chargeability 30ms  ip survel  resistivity model for Cadan  Cadan project showing IP overlay photos  channel sample at kapanawan  community briefing by datu jesus gabunan  community briefing Engineer Martinez  drill supervisor Nilo Cabrina and mapper Alex Barnachea  logging the core  excavator  exploration manager Ian Cooper  field administrator Girle-mae Adao  field office assistant  geology mappers  geology mapping  June Daclan  Nilo Cabrina  geophysicist field visit Peter Elliot Consulting  survey team  Arturo Barnachea prospecting  discovery team  field geologist  magnetite veining  mapping team  stockwork veining |
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Porphyry deposits are low to mid-grade, large-tonnage mineral deposits.
Epithermal deposits are mineral deposits consisting of veins and replacement bodies, usually in volcanic or sedimentary rocks.
An adit is a type of entrance to an underground mine which is horizontal or nearly horizontal. Compare to a tunnel, which is a horizontal excavation which goes completely through a body of earth.
A Mineral Resource is a concentration or occurrence of material of intrinsic economic interest in or on the Earth's crust in such form, quality and quantity that there are reasonable prospects for eventual economic extraction. The location, quantity, grade, geological characteristics and continuity of a Mineral Resource are known, estimated or interpreted from specific geological evidence, sampling and knowledge. Mineral Resources are sub-divided, in order of increasing geological confidence, into Inferred, Indicated and Measured categories. Definition from Australasian Joint Ore Reserves Committee (JORC).
Indicated Resource is that part of a Mineral Resource for which tonnage, grade and mineral content can be estimated with a low level of confidence. It is inferred from geological evidence, sampling and assumed but not verified geological and/or grade continuity. It is based on information gathered through appropriate techniques from locations such as outcrops, trenches, pits, workings and drill holes which may be limited or of uncertain quality and reliability. Definition from Australasian Joint Ore Reserves Committee (JORC).
Inferred Resource is that part of a Mineral Resource for which tonnage, grade and mineral content can be estimated with a low level of confidence. It is inferred from geological evidence, sampling and assumed but not verified geological and/or grade continuity. It is based on information gathered through appropriate techniques from locations such as outcrops, trenches, pits, workings and drill holes which may be limited or of uncertain quality and reliability. Definition from Australasian Joint Ore Reserves Committee (JORC).
Measured Resource is that part of a Mineral Resource for which tonnage, densities, shape, physical characteristics, grade and mineral content can be estimated with a high level of confidence. It is based on detailed and reliable exploration, sampling and testing information gathered through appropriate techniques from locations such as outcrops, trenches, pits, workings and drill holes. The locations are spaced closely enough to confirm geological and grade continuity. Definition from Australasian Joint Ore Reserves Committee (JORC).
Historical reserve is the measure of ore reserve that was previously calculated.
Mining companies do Resource Definition Drilling to define the tonnage and grade of deposits. Exploratory holes are drilled to take samples, and the data from the samples is used to create 3-dimensional models of the deposit.
Skarn is the name for the metamorphic rocks surrounding an igneous intrusive where it comes in contact with a limestone or dolostone formation. Skarns are often hosts for copper, lead, zinc, iron, gold, molybdenum, tin, and tungsten ore deposits.
An Intrusive is a body of igneous rock formed by the consolidation of magma intruded into other rocks, in contrast to lavas, which are extruded upon the surface of the earth.
Igneous rocks are formed by the solidification of molten material from far below the earth's surface. Metamorphic rocks have undergone a change in texture or composition as the result of the heat and/or pressure.
Limestone is a bedded, sedimentary deposit consisting chiefly of calcium carbonate.
Dolostone is a sedimentary carbonate rock that contains a high percentage of the mineral dolomite.
Magma is the molten material deep in the Earth from which rocks are formed.
A stockwork system is a system of veins making up a deposit.
Induced Polarisation (IP) is a method of ground geophysical surveying employing an electrical current to determine indications of mineralization.
K-feldspar is widespread and common in a wide variety of igneous and metamorphic rocks and in some sedimentary rocks. Its chemistry and atomic arrangement are variable, so visual properties vary as well.
Chalcopyrite is a sulphide mineral of copper and iron; the most important ore mineral of copper.
Bornite, or Copper Iron Sulfide, is an important copper ore mineral.
Pyrite is a yellow iron sulphide mineral, normally of little value. Also called "fool's gold".
Quartz is a common rock-forming mineral consisting of silicon and oxygen.