CENTRAL GEOLOGICAL SURVEY, MOEA

	Introduction
	Earlier Geologic Maps of Taiwan
	Geographic Setting
	General Geology And Geologic Provinces Of Taiwan
	Explanation Of Legend And Representation Of Geologic Data
	Eastern Central Range
	Western Central Range Backbone Ridges
	Western Foothills
	Eastern Coastal Range
	Geology Of The Hengchun Peninsula
	Major Geologic Features Of Taiwan
	Plate Tectonic Setting
	References

:::Geology Of The Hengchun Peninsula

Introduction	Stratigraphy	Major structural features	Geologic History

Major Structural Features

The major structural lines on the Hengchun Peninsula trend north-south to N.20oE.. Three structural elements can be recognized from west to east (Pelletier et al.,. 1986): the Hengchun Valley syncline, the Hengchun fault, and the Kenting Park anticline. The Hengchun Valley syncline exposes Pliocene and Pleistocene sediments. It is a gentle and open fold trending along the major valley that contains the city of Hengchun. The Hengchun fault runs along the east side of the Hengchun valley. This fault continues northward to the Chaochow fault or the Laonungchi fault on the east side of the Pingtung valley. All these faults are important tectonic lines in Taiwan. The Kenting Park anticline is east of the Hengchun fault. This fold is formed of intensely deformed Miocene rocks, and is a very complicated structure that traverses the entire peninsula north to south. It may be considered a large-scale anticlinorium, beginning south from the non-metamorphosed Changlo Formation and extending north to the slightly metamorphosed Lushan Formation. Foliation and slaty cleavage become better developed gradually from the south toward the north, and are quite pronounced in the Lushan Formation in the northern part of the peninsula. The Kenting Park anticline trends N.20oE. and is an overturned anticline verging to the west. The folding deformed a thick sequence of Miocene clastic rocks that was thrust westward over the Kenting melange. The Changlo Formation is exposed in the core and the main part of the anticlinal crest, with the Loshui Formation exposed on the two flanks.

:::© CENTRAL GEOLOGICAL SURVEY, MOEA

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