Keelung Islet (, also , in
Taiwanese Hokkien
Taiwanese Hokkien () (; Tâi-lô: ''Tâi-uân-uē''), also known as Taigi/Taigu (; Pe̍h-ōe-jī/Tâi-lô: ''Tâi-gí / Tâi-gú''), Taiwanese, Taiwanese Minnan, Hoklo and Holo, is a variety of the Hokkien language spoken natively by about 70% ...
: 雞籠杙/Ke-lâng-khit) is a small
island
An island (or isle) is an isolated piece of habitat that is surrounded by a dramatically different habitat, such as water. Very small islands such as emergent land features on atolls can be called islets, skerries, cays or keys. An island ...
in
Zhongzheng District
Zhongzheng District (also Jhongjheng District) is a district in Taipei. It is home to most of the national government buildings of the Republic of China (Taiwan), including the Presidential Office, the Executive Yuan, the Control Yuan, the ...
,
Keelung
Keelung () or Jilong () (; Hokkien POJ: '), officially known as Keelung City, is a major port city situated in the northeastern part of Taiwan. The city is a part of the Taipei–Keelung metropolitan area, along with its neighbors, New Taipe ...
,
Taiwan
Taiwan, officially the Republic of China (ROC), is a country in East Asia, at the junction of the East and South China Seas in the northwestern Pacific Ocean, with the People's Republic of China (PRC) to the northwest, Japan to the nort ...
and away from the
Port of Keelung
The Port of Keelung (), also known as Keelung Harbor, is located in the vicinity of Keelung City, Taiwan. It is operated by Taiwan International Ports Corporation, Taiwan's state-owned port management company.
History
The 1858 Treaty of Tientsin ...
. It has an area of or . It is in length, and in width including the artificial harbor, the highest point is
above sea level
Height above mean sea level is a measure of the vertical distance (height, elevation or altitude) of a location in reference to a historic mean sea level taken as a vertical datum. In geodesy, it is formalized as ''orthometric heights''.
The comb ...
.
History
![Txu-oclc-6557994-index-457](https://upload.wikimedia.org/wikipedia/commons/5/55/Txu-oclc-6557994-index-457.jpg)
In ancient times, the island was seen as a sacred place by locals. It was rumoured that a female ghost named Shih-Yun lived there, to mourn over her husband who died in a shipwreck hundreds of years ago.
In the modern day, the islet is primarily used as a military training base. Since 2001, it has been opened for tourists. Ferry services to the island operate daily from the port of Keelung. There is a small port and a walkway on the island. The island is also popular with the local fishing industry, because of the quantity of fish it attracts in its surrounding sea.
In 2013, the islet was closed to visitors following
Typhoon Soulik. The islet remained closed to the public as damage from
Typhoon Soudelor
Typhoon Soudelor, known in the Philippines as Typhoon Hanna, was the third most intense tropical cyclone worldwide in 2015 after Hurricane Patricia and Cyclone Pam as well as the strongest tropical cyclone of the 2015 Pacific typhoon season. Sou ...
in 2015 was repaired. In July 2017, the city government allocated NT$82 million for the island's infrastructure reparation and renovation works.
Plans to reopen for tourists in August 2018 were delayed until June 2019.
The islet was finally reopened again on 25 June.
Geography
The island is volcanic, part of the
Chilung Volcano Group. It dates from the
Pleistocene
The Pleistocene ( , often referred to as the ''Ice age'') is the geological Epoch (geology), epoch that lasted from about 2,580,000 to 11,700 years ago, spanning the Earth's most recent period of repeated glaciations. Before a change was fina ...
period. The eruption was explosive
tholeiitic
The tholeiitic magma series is one of two main magma series in subalkaline igneous rocks, the other being the calc-alkaline series. A magma series is a chemically distinct range of magma compositions that describes the evolution of a mafic magma ...
andesite
Andesite () is a volcanic rock of intermediate composition. In a general sense, it is the intermediate type between silica-poor basalt and silica-rich rhyolite. It is fine-grained (aphanitic) to porphyritic in texture, and is composed predomi ...
and
dacite
Dacite () is a volcanic rock formed by rapid solidification of lava that is high in silica and low in alkali metal oxides. It has a fine-grained (aphanitic) to porphyritic texture and is intermediate in composition between andesite and rhyolite. ...
. The main mineral is calcium rich
plagioclase
Plagioclase is a series of tectosilicate (framework silicate) minerals within the feldspar group. Rather than referring to a particular mineral with a specific chemical composition, plagioclase is a continuous solid solution series, more prope ...
. The magma source is the western extremity of the
Ryukyu Volcanic Arc formed when the
subducting
Subduction is a geological process in which the oceanic lithosphere is recycled into the Earth's mantle at convergent boundaries. Where the oceanic lithosphere of a tectonic plate converges with the less dense lithosphere of a second plate, the ...
Philippine Sea Plate
The Philippine Sea Plate or the Philippine Plate is a tectonic plate comprising oceanic lithosphere that lies beneath the Philippine Sea, to the east of the Philippines. Most segments of the Philippines, including northern Luzon, are part o ...
was compressed below the edge of the Eurasian Plate at about 20 to 30 km deep. The magma was contaminated with continental crust material. Geochemistry of the rock shows that iron, aluminium, titanium, potassium, rubidium and strontium are enriched, but sodium, magnesium and nickel are impoverished.
Transportation
The island can be accessed from Keelung mainland at
Badouzi,
Bisha or
Keelung
Keelung () or Jilong () (; Hokkien POJ: '), officially known as Keelung City, is a major port city situated in the northeastern part of Taiwan. The city is a part of the Taipei–Keelung metropolitan area, along with its neighbors, New Taipe ...
Ports.
See also
*
List of islands of Taiwan
The islands comprising the Taiwan Area under the jurisdiction of the Taiwan, Republic of China (ROC) are classified into various island groups. The Geography of Taiwan, island of Taiwan, also known as Formosa, is the largest island and the main c ...
References
{{commons category
Islands of Taiwan
Landforms of Keelung
Pleistocene volcanoes
Volcanoes of Taiwan