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Asian Gold reserves DB
Baguio gold mine (philippines)
      paishanlou gold mine (china)
      gaolong gold mine (china)
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اولينقبليبعديآخرين
   Geological background
   The district is underlain by five major lithologic units. The Pugo Fm is a sequence of metavolcanic and metasedimentary rocks of Cretaceous to Eocene age. Unconformably overlying the Pugo Fm is the Zigzag Fm. It consists largely of marine sedimentary rocks of Early to Middle Miocene in age based on diagnostic foraminiferal assemblage (Balce et al., 1980). However, it is intruded by andesite porphyry dated 15.0 ( 1.6 Ma (Wolfe, 1981) which imply a pre-Middle Miocene age for the formation. Mitchell and Leach (1991) consider the Zigzag Fm to be largely Late Eocene but may include rocks of Early Miocene age. The Kennon Fm of Middle Miocene age conformably overlies the Zigzag Fm. It is made up of limestones occurring in a discontinuous north-trending belt west of the mining district.
  

Epithermal gold potential in Baguio

Gold ore in rocks of area
    Unconformably overlying all formations in the Baguio district is the Klondyke Fm. Most workers agree that its age may be fixed as Late Miocene (Balce et al., 1980; Wolfe, 1988; Mitchell and Leach, 1991). The Klondyke Fm includes a wide range of lithologies and sedimentary facies, but most are clastic and almost entirely andesitic in composition. The other major lithologic unit in the district is the Agno Batholith; it is predominantly composed of hornblende quartz diorite. Radiometric dating indicates that the different rocks in the batholith were intruded in several phases.
 
 
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