Mount Sibayak () is a

stratovolcano A stratovolcano, also known as a composite volcano, is a typically conical volcano built up by many alternating layers (strata) of hardened lava and tephra. Unlike shield volcanoes, stratovolcanoes are characterized by a steep profile with ...

overlooking the town of

Berastagi Berastagi (), is a town and district of Karo Regency situated on a crossroads on the main route linking the Karo highlands of Northern Sumatra to the coastal city of Medan. Berastagi town is located around south of Medan and about above se ...

in northern Sumatra,

Indonesia Indonesia, officially the Republic of Indonesia, is a country in Southeast Asia and Oceania, between the Indian Ocean, Indian and Pacific Ocean, Pacific oceans. Comprising over List of islands of Indonesia, 17,000 islands, including Sumatra, ...

. Although its last

eruption A volcanic eruption occurs when material is expelled from a volcanic vent or fissure. Several types of volcanic eruptions have been distinguished by volcanologists. These are often named after famous volcanoes where that type of behavior has ...

was more than a century ago,

geothermal activity Geothermal activity is a group of natural heat transfer processes, occurring on Earth's surface, caused by the presence of excess heat in the subsurface of the affected area, usually caused by the presence of an igneous intrusion underground. Geot ...

in the form of steam vents and

hot spring A hot spring, hydrothermal spring, or geothermal spring is a Spring (hydrology), spring produced by the emergence of Geothermal activity, geothermally heated groundwater onto the surface of the Earth. The groundwater is heated either by shallow ...

s remains high on and around the volcano. The vents produce crystalline

sulfur Sulfur ( American spelling and the preferred IUPAC name) or sulphur ( Commonwealth spelling) is a chemical element; it has symbol S and atomic number 16. It is abundant, multivalent and nonmetallic. Under normal conditions, sulfur atoms ...

, which was mined on a small scale in the past. Seepage of sulfurous gases has also caused acidic discolouration of the small

crater lake Crater Lake ( Klamath: ) is a volcanic crater lake in south-central Oregon in the Western United States. It is the main feature of Crater Lake National Park and is a tourist attraction for its deep blue color and water clarity. T ...

. Sibayak is a term from the Karo

Batak Batak is a collective term used to identify a number of closely related Austronesian peoples, Austronesian ethnic groups predominantly found in North Sumatra, Indonesia, who speak Batak languages. The term is used to include the Karo people ( ...

language referring to a founding community. Mount Sibayak is relatively easy to climb and has been a

tourist attraction A tourist attraction is a place of interest that tourists visit, typically for its inherent or exhibited natural or cultural value, historical significance, natural or built beauty, offering leisure and amusement. Types Places of natural beaut ...

since colonial times. File:Gunung Sibayak 2015-05-24.jpeg, Crater of Gunung Sibayak. Mount Sinabung in the back. File:COLLECTIE TROPENMUSEUM Grand Hotel Brastagi aan de voet van de vulkaan Sibayak TMnr 60021770.jpg, Mount Sibayak in the 1920s File:COLLECTIE TROPENMUSEUM De Sibajak raja berampat - de zogenaamde viervorsten - met hun vrouwen Karolanden Noord-Sumatra TMnr 10005425.jpg, The "Sibajak raja berampat", the so-called four princes with their wives, Karolanden, North Sumatra (1914–1919) On July 11, 1979, a Fokker F28 operating under Garuda Indonesian Airways crashed into this mountain.

References

External links

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Photos of gunung Sibayak and gunung Sinabung
Sibayak Sibayak Sibayak Sibayak Volcanic crater lakes Geothermal energy in Indonesia Landforms of North Sumatra Deli basin {{NSumatra-geo-stub

See also

References

External links