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THEORIES ON THE ORIGIN OF THE ARCHIPELAGO

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John Lawrence Carandang

on 4 December 2013

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Transcript of THEORIES ON THE ORIGIN OF THE ARCHIPELAGO

THEORIES ON THE ORIGIN OF THE ARCHIPELAGO
PLATE TECTONIC THEORY
Comes from the idea that the
movement of the earth's crust
is the result of the continental plate.
Asiatic Theory
Propagated by Dr. Leopaldo Faustino
Used the model of the plate tectonic theory.
Asia was formed as a result of the movement of the continental plate.
Pacific theory
propagated by Dr. Bailey Willis, American geologist.
The Philippines was formed due to explosions in the Pacific basin.
It is believed that the
movements of the lands on the surface of the earth
are caused by the movements of these continental plates.
How was the Philippine
archipelago formed?
Theories can explain?
Cretaceous period
(100-65 million years ago)
First islands in the Philippines were formed during this period.
Bicol Peninsula, Leyte, and parts of eastern Mindanao
Zambales and Sierra Madre were pushed upward due to process of diastrophism.
Pleistocene Period
(6-10 million years ago)
Occurrence of the glacial period in the Northern part of the world
Resulted to the formation of the Sundan Shelf
Northern Philippines
Taiwan
Borneo
Sulu and Palawan
The formation Sudan Shelf led to the migration of animals as well as existence of the first humans in the Philippines (Homo Sapiens and Homo Erectus)
Vulcanism is a result of tectonic movement.
Meanwhile, due to the process of gradation, water systems and landforms were also formed.
The formation of the Philippines was a result of the movement of the Asian continent towards the south which eventually led to the formation of China Sea Depression and the "crumpling" of the edge of the continent.
The basis of this theory lies in the similarities of the and fauna of the Philippines to those of Asia.
The mountain ranges in the Philippines also followed the coastal parts of Asia which were believed to be connected to each other.
it claims that two (2) processes of diastrophism namely, upfolding and upthrustfaulting caused the rising (or emergence) and formation of the Philippine archipelago,and all mountains in the archipelago
this occurred during the Paleozoic Era some 200 million

the eruptions of underwater volcanoes some 200 million years ago resulted in the piling up of extrusive or molten rocks causing the emergence of islands in the Pacific Ocean
the continuing process of volcanism formed the structural foundation of the Philippines
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