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Tatun Volcanic Group
The Tatun Volcanic Group () constitutes a group of volcanoes located in northern Taiwan. It is located 15 km north of Taipei, and lies to the west of Keelung. It just adjoins the northern coast of the Taiwan island. The volcanic group was a result of episodic volcanism between 2.8 and 0.2 Ma. As of 2005, some geothermal activity was occurring and gas fumaroles were active among these volcanoes. Observations of the Tatun Volcanic Group suggest that magma chambers probably still exist under the land surface of northern Taiwan. History The north of the island is where evidence of volcanic activity is most obvious. In the early 20th century, the North Range of hills, also called ''Daitonzan'' from Japanese or ''Twa-tun'' from Hokkien, was recognized as having an abundance of sulfur deposits. There were three craters in the North Range between Tamsui and Kimpauli (approx. modern-day Jinshan). The North hill crater, over in diameter and about deep, was the most extensive and wa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Qixing Mountain (Taipei)
Qixing Mountain, also spelled Cising Mountain or Chihsing Mountain, () is a mountain in Beitou District, Taipei, Taiwan. It is located on the Datun Volcano Group and is the highest mountain in the city, at the rim of Taipei Basin. It is also the highest (dormant) volcano in Taiwan. It is located in the center of Yangmingshan National Park; its main peak is above sea level. It began erupting about 700,000 years ago. There was a crater at the peak but it became seven small peaks due to post-eruption erosion. The mountain has faults running across the southeast and northwest contours, and has volcanic landforms such as hot springs and fumaroles. Shamao Mountain is a round volcanic dome that looks like a black gauze cap. As the lava was more viscous when the mountain was formed, it gradually became a tholoid, also known as a cumulo-dome volcano, it is above sea level. Shamaoshan and Cigushan (七股山, ) are parasitic volcanoes of Qixingshan. This mountain is the source of t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |