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FORMATION OF

FILIPINAS

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PLATE TECTONICS

theory dealing with the dynamics of Earth's

outer shell, the lithosphere, that revolutionized

earth sciences by providing a uniform contextfor understanding mountain-building

processes, volcanoes, and earthquakes, as well

as understanding the evolution of Earth's

surface and reconstructing its past continental

and oceanic configurations.

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Major Plates of the World

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Cross-section through an active subduction zone adjacent to a continent. Note the

continental volcanic arc rising parallel to the subduction zone.

(Image: USGS)

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MINERALOGY,

MOUNTAINS and SEAS

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8

PORPHYRY COPPER

BELTS

PORPHYRY COPPER

BELTS

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General Statements about the Philippine Mineral Industry

1) The Philippines is known for:

a) GOLD (ranks 3rd richest in terms of occurrence per unit

area)b) COPPER (There were as many as 30 copper mines in 1982)

c) CHROMITE (known for its high grade)

d) NICKEL (biggest resource in SE Asia)

2) 180 metal mines (~60 major ones) in the mid-70s to early 80s

3) To date there are 2 major mines (1 gold and 1 copper),

10 medium- and 2 small-scale nickel mines, 2 medium-scale chromite

mines, and 3 medium-scale gold mines (18 total).

1) The number of permits granted for development and exploration covers

only

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GOLD

Diwalwal Proj.(10.2 MMt, 8. 10 g/t Au)

Maco Gold Proj.(0.5 MMt, 9 g/t Au)

North Davao

Prospects

Boringot Prospect

Siana Mine(7.7 MMt, 3.3 g/t Au)

Acupan Mine(10.61 MMt, 2.46 g/t Au)

Victoria Mine(10 MMt, 6.94 g/t Au)

Panaon

prospect

Sibutad Mine

Co-o Mine

Late Miocene-Pleistocene Arc

EDWIN G. DOMINGO

Assistant Director

MINES AND GEOSCIENCES BUREAU

Department of Environment and Natural Resources

Quezon City, Philippines

EDWIN G DOMINGO

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Areas of HighPotential

COPPER - GOLD

Surigao gold district holds

promise for porphyry copper

mineralization

Time for rational exploration in

Diwalwal-Masara area

Discovery of Tampakan grabs

attention for Cotabato

The next big discovery could take

place in the Zamboanga district Central Cordillera of Mindanao

remains unexplored; gold

panning activities reported.

Surigao Sub-district

Central Sub-district

Davao Sub-district

Tampakan por. Cu-Au

Zamboanga District

EDWIN G. DOMINGO

Assistant Director

MINES AND GEOSCIENCES BUREAU

Department of Environment and Natural Resources

Quezon City, Philippines

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