North Palawan Block: Difference between revisions

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North Palawan Block is a microcontinental block situated in the western Philippines and the southern tip of the Manila Trench. The North Palawan block is considered to form the northeastern portion of a much larger area of block faulted and foundered pre-Tertiary continental material which extends throughout the southern part of the South China Sea Basin and includes the Spratly Islands and the Dangerous Grounds area off Borneo (Hamilton, 1979). The evidence for the continental composition of the crust of this area is substantial and has been reviewed by Hamilton (1979) and Taylor & Hayes (1980) among others^[1].

Geology

The geology of the North Palawan Block has four divisions: North Palawan, Romblon Island Group, Northeast Mindoro and Buruanga Peninsula. North Palawan Block has oldest rocks dated Permian period.

Stratigraphic formations of each divisions

North Palawan (Middle Permian – Late Pleistocene)

Bacuit Formation
Minilog Limestone
Liminangkong Formation
Coron Formation
Guinlo Formation
Paly Serpentinite
Caramay Schist
Conception Phyllite
Boayan Formation
Maytiguid Limestone
St. Paul Limestone
Kapoas Granite
Piedras Andesite
Manguao Basalt

Romblon Island Group (Early Permian – Late Pliocene)

Romblon Metamorphic Complex
Carabao Sandstone
Pacul Limestone
Sibuyan Ophiolitic Complex
Tablas Volcanic Complex
Calatrava Quartz Diorite
Bailan Limestone
Binoog Formation
Anahao Formation
Banton Volcanic Complex
Peliw Formation

Northeast Mindoro (Early Jurassic – Late Pleistocene)

Halcon Metamorphic Complex
Abra de Ilog Formation
Lasala Formation
Pagbahan Granodiorite
Amnay Ophiolite
Lumintao Basalt
San Teodoro Volcanic Complex
Dumali Volcanic Complex

Buruanga Peninsula (Late Jurassic – Late Pleistocene)

Buruanga Metamorphic Complex
Patria Quartz Diorite
Fragante Formation
Libertad Formation

References

^ Holloway, N (December 1981). "Abstract" (PDF). www.gsm.org.my.

[1] Holloway, N (December 1981). "Abstract" (PDF). www.gsm.org.my.

[1]

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-'''North Palawan Block''' is a [[Microcontinent|microcontinental block]] situated in the western [[Philippines]] and the southern tip of  the [[Manila Trench]]. The North Palawan block is considered to form the northeastern portion of a much larger area of block faulted and foundered pre-Tertiary continental material which extends throughout the southern part of the [[Tectonics of the South China Sea|South China Sea Basin]] and includes the [[Spratly Islands]] and the [[Dangerous Ground (South China Sea)|Dangerous Grounds]] area off [[Borneo]] (Hamilton, 1979). The evidence for the continental composition of the crust of this area is substantial and has been reviewed by Hamilton (1979) and Taylor & Hayes (1980) among others<ref>http://www.gsm.org.my/products/702001-101199-PDF.pdf</ref>.
+'''North Palawan Block''' is a [[Microcontinent|microcontinental block]] situated in the western [[Philippines]] and the southern tip of  the [[Manila Trench]]. The North Palawan block is considered to form the northeastern portion of a much larger area of block faulted and foundered pre-Tertiary continental material which extends throughout the southern part of the [[Tectonics of the South China Sea|South China Sea Basin]] and includes the [[Spratly Islands]] and the [[Dangerous Ground (South China Sea)|Dangerous Grounds]] area off [[Borneo]] (Hamilton, 1979). The evidence for the continental composition of the crust of this area is substantial and has been reviewed by Hamilton (1979) and Taylor & Hayes (1980) among others<ref>{{cite web|url=http://www.gsm.org.my/products/702001-101199-PDF.pdf |title=Abstract |last=Holloway |first=N |date=December 1981 |website=www.gsm.org.my |format=PDF}}</ref>.
 == Geology ==