Ancient Arcs Flashcards
1
Q
The oldest known magmatic rocks in the Philippines are found in? (Walther and others, 1981)
A
Cebu
2
Q
The age of the oldest magmatic arc found in Cebu have been dated from? (walther and others, 1981)
A
Late Cretaceous
3
Q
In Luzon, most intrusives are well constrained stratigraphically as well as radiometrically of what age interval?
A
Middle Oligocene to late Miocene
4
Q
Paleogene rocks in Central Cordillera of Luzon are associated with
A
Ancient Arc
5
Q
Neogene intrusives and volcanic rocks in Central Cordillera Luzon are related to what event?
A
Eastward subduction of the Manila Trench under the Luzon Arc
6
Q
Most of our Gold mineralization or Auriferous deposits are associated with hypabbysal intrusion and volcanism (Zanoria., et al, 1984) have been dated from?
A
Late Neogene
