Cannabaceae

Chilung Volcanic Group
Chilungshan (基隆山), one of the volcanoes, has a height of 588 m.
Highest point
Coordinates25°07′18″N 121°50′54″E / 25.1218°N 121.8482°E / 25.1218; 121.8482
Geography
Chilung Volcanic Group is located in Taiwan
Chilung Volcanic Group
Chilung Volcanic Group
Chilung Volcanic Group is located in northern Taiwan
LocationRuifang District, New Taipei City, Taiwan
Geology
Volcanic arcRyukyu arc

The Chilung Volcanic Group or Keelung Volcanic Group (Chinese: 基隆火山群; pinyin: Jīlóng Huǒshān Qún) is a group of extinct volcanoes located in northern Taiwan, lying to the east of Taipei and Keelung (Chilung), and adjoining the northern coast of the island of Taiwan.[1] Together with Mount Guanyin and the Tatun Volcanic Group, it belongs to the northern Taiwan volcanic province, constituting the western end of the island chains of the Ryukyu arc. Five separate bodies can be distinguished: Chilungshan (Mount Keelung), Penshan, Wutanshan, Tsaoshan and Chimuling.[2]

The group is mainly composed of andesite, although there is some heterogeneity caused by the mixing between mantle-derived and continental material. Aging of andesite, biotite, and zircon samples have yielded age estimates between 0.8 and 1.7 Ma.[2] It comprises the largest gold-copper deposits of Taiwan.[3]

See also

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References

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  1. ^ Robinson, A.M.; Lin, J.-C. (2014). "Taiwan geotourism: a volcanic experience". In Erfurt-Cooper, Patricia (ed.). Volcanic Tourist Destinations. Springer Science & Business Media. pp. 183–192. ISBN 978-3-642-16191-9.
  2. ^ a b Wan, Yusheng; Ho, Kungsuan; Liu, Dunyi; Zhou, Hongying; Dong, Chunyan; Ma, Mingzhu (2012). "Micro-scale heterogeneity of andesite from Chilungshan, northern Taiwan: Evidence from melt inclusions, geochronology and Hf–O isotopes of zircons". Chemical Geology. 328: 244–258. Bibcode:2012ChGeo.328..244W. doi:10.1016/j.chemgeo.2011.11.025.
  3. ^ Yen, Tsang-Po; Tzou, Yu-Hua; Wu, Shing-Whrong (April 1979). "Geology of the Chilung volcano group district, northern Taiwan". Proceedings of the Geological Society of China (in Chinese and English). 22: 94–104.[permanent dead link]

One thought on “Cannabaceae

  1. Well, that’s interesting to know that Psilotum nudum are known as whisk ferns. Psilotum nudum is the commoner species of the two. While the P. flaccidum is a rare species and is found in the tropical islands. Both the species are usually epiphytic in habit and grow upon tree ferns. These species may also be terrestrial and grow in humus or in the crevices of the rocks.
    View the detailed Guide of Psilotum nudum: Detailed Study Of Psilotum Nudum (Whisk Fern), Classification, Anatomy, Reproduction

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