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Wayang-Windu
Wayang-Windu is a twin volcano that consists of Mount Wayang ( Indonesian: ''Gunung Wayang'', "Mount Shadow") and Mount Windu. They are located just to the east of the town of Pangalengan in the Bandung Regency (''Kabupaten'' or ''District'') in West Java, Indonesia, about south of the city of Bandung. The area has been an active geothermal project. Mount Wayang has a wide crescentic crater which holds four groups of fumaroles. Mount Windu has a wide crater. See also * List of volcanoes in Indonesia The geography of Indonesia is dominated by volcanoes that are formed due to subduction zones between the Eurasian plate and the Indo-Australian plate. Some of the volcanoes are notable for their eruptions, for instance, Krakatoa for its globa ... References Bandung Regency Mountains of Indonesia Volcanoes of West Java Pleistocene lava domes {{WJava-geo-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pangalengan
Pangalengan is a district (''Kecamatan'') in the Bandung Regency, Indonesia. It is located south of the major West Java city of Bandung. Main industries of the Pangalengan district include dairy farming and tourism, the latter arising from the popularity of the many traditional villages and natural attractions such as lakes, ponds, hot springs and waterfalls in the district. The area is an important centre of activity for thtea industry in Indonesia There is also considerable interest in the potential for the use of geothermal sites in the region for the production of electricity. The Wayang Windu plant, the largest geothermal plant in Indonesia with a capacity of 227 megawatts, is located to the east of Pangalengan on the slopes of the Wayang Windu volcano. The site has been jointly developed by Star Energand PT Pertamina Geothermal Energy, a subsidiary of the large state-owned oil company Pertamina. The activity has not been without controversy however and local people near ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bandung Regency
Bandung Regency (''Kabupaten Bandung'') is an administrative landlocked regency located to the south, southeast, east and northeast of the city of Bandung. The northern parts of the Bandung Regency are effectively part of the Bandung Metropolitan Area (technically the whole of the Regency is within the Metropolitan Area), with the southern third being less urbanized and jutting upwards from the Valley, though not as sharply as the mountain range to the immediate north of Bandung. The Regency is part of the Indonesian province of West Java, and is situated about 75 miles southeast of Jakarta. The town of Soreang is the regency seat. The Regency was reduced in size as first Cimahi City (which became autonomous) and then West Bandung Regency were split off from the regency. In the 2010 Census, the population of the residual area reached 3,178,543 after final adjustments, while the 2020 Census increased the total to 3,623,790; the official estimate as at mid 2021 was 3,666,156, for ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Volcanoes In Indonesia
The geography of Indonesia is dominated by volcanoes that are formed due to subduction zones between the Eurasian plate and the Indo-Australian plate. Some of the volcanoes are notable for their eruptions, for instance, Krakatoa for its global effects in 1883, the Lake Toba Caldera for its supervolcanic eruption estimated to have occurred 74,000 years before present which was responsible for six years of volcanic winter, and Mount Tambora for the most violent eruption in recorded history in 1815. Volcanoes in Indonesia are part of the Pacific Ring of Fire. The 150 entries in the list below are grouped into six geographical regions, four of which belong to the volcanoes of the Sunda Arc trench system. The remaining two groups are volcanoes of Halmahera, including its surrounding volcanic islands, and volcanoes of Sulawesi and the Sangihe Islands. The latter group is in one volcanic arc together with the Philippine volcanoes. The most active volcano is Mount Merapi on Java. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Java
Java (; id, Jawa, ; jv, ꦗꦮ; su, ) is one of the Greater Sunda Islands in Indonesia. It is bordered by the Indian Ocean to the south and the Java Sea to the north. With a population of 151.6 million people, Java is the world's List of islands by population, most populous island, home to approximately 56% of the Demographics of Indonesia, Indonesian population. Indonesia's capital city, Jakarta, is on Java's northwestern coast. Many of the best known events in Indonesian history took place on Java. It was the centre of powerful Hindu-Buddhist empires, the Islamic sultanates, and the core of the colonial Dutch East Indies. Java was also the center of the History of Indonesia, Indonesian struggle for independence during the 1930s and 1940s. Java dominates Indonesia politically, economically and culturally. Four of Indonesia's eight UNESCO world heritage sites are located in Java: Ujung Kulon National Park, Borobudur Temple, Prambanan Temple, and Sangiran Early Man Site. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Indonesia
Indonesia, officially the Republic of Indonesia, is a country in Southeast Asia and Oceania between the Indian and Pacific oceans. It consists of over 17,000 islands, including Sumatra, Java, Sulawesi, and parts of Borneo and New Guinea. Indonesia is the world's largest archipelagic state and the 14th-largest country by area, at . With over 275 million people, Indonesia is the world's fourth-most populous country and the most populous Muslim-majority country. Java, the world's most populous island, is home to more than half of the country's population. Indonesia is a presidential republic with an elected legislature. It has 38 provinces, of which nine have special status. The country's capital, Jakarta, is the world's second-most populous urban area. Indonesia shares land borders with Papua New Guinea, East Timor, and the eastern part of Malaysia, as well as maritime borders with Singapore, Vietnam, Thailand, the Philippines, Australia, Palau, and India ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lava Dome
In volcanology, a lava dome is a circular mound-shaped protrusion resulting from the slow extrusion of viscous lava from a volcano. Dome-building eruptions are common, particularly in convergent plate boundary settings. Around 6% of eruptions on Earth are lava dome forming. The geochemistry of lava domes can vary from basalt (e.g. Semeru, 1946) to rhyolite (e.g. Chaiten, 2010) although the majority are of intermediate composition (such as Santiaguito, dacite-andesite, present day) The characteristic dome shape is attributed to high viscosity that prevents the lava from flowing very far. This high viscosity can be obtained in two ways: by high levels of silica in the magma, or by degassing of fluid magma. Since viscous basaltic and andesitic domes weather fast and easily break apart by further input of fluid lava, most of the preserved domes have high silica content and consist of rhyolite or dacite. Existence of lava domes has been suggested for some domed structures on the Mo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Indonesian Language
Indonesian ( ) is the official language, official and national language of Indonesia. It is a standard language, standardized variety (linguistics), variety of Malay language, Malay, an Austronesian languages, Austronesian language that has been used as a lingua franca in the multilingual Indonesian archipelago for centuries. Indonesia is the fourth most list of countries by population, populous nation in the world, with over 270 million inhabitants—of which the majority speak Indonesian, which makes it one of the most List of languages by total number of speakers, widely spoken languages in the world.James Neil Sneddon. ''The Indonesian Language: Its History and Role in Modern Society''. UNSW Press, 2004. Most Indonesians, aside from speaking the national language, are fluent in at least one of the more than 700 indigenous languages of Indonesia, local languages; examples include Javanese language, Javanese and Sundanese language, Sundanese, which are commonly used at home a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
West Java
West Java ( id, Jawa Barat, su, ᮏᮝ ᮊᮥᮜᮧᮔ᮪, romanized ''Jawa Kulon'') is a province of Indonesia on the western part of the island of Java, with its provincial capital in Bandung. West Java is bordered by the province of Banten and the country's capital region of Jakarta to the west, the Java Sea to the north, the province of Central Java to the east and the Indian Ocean to the south. With Banten, this province is the native homeland of the Sundanese people, the second-largest ethnic group in Indonesia. West Java was one of the first eight provinces of Indonesia formed following the country's independence proclamation and was later legally re-established on 14 July 1950. In 1966, the city of Jakarta was split off from West Java as a 'special capital region' (), with a status equivalent to that of a province, while in 2000 the western parts of the province were in turn split away to form a separate Banten province. Even following these split-offs, West Java is ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bandung
Bandung ( su, ᮘᮔ᮪ᮓᮥᮀ, Bandung, ; ) is the capital city of the Indonesian province of West Java. It has a population of 2,452,943 within its city limits according to the official estimates as at mid 2021, making it the fourth most populous city in Indonesia. Greater Bandung (Bandung Basin Metropolitan Area/BBMA) is the country's third-largest metropolitan area, with nearly nine million inhabitants. Located above sea level, the highest point in the North area with an altitude of 1,050 meters and the lowest in the South is 675 meters above sea level, approximately southeast of Jakarta, Bandung has cooler year-round temperatures than most other Indonesian cities. The city lies on a river basin surrounded by volcanic mountains that provides a natural defence system, which was the primary reason for the Dutch East Indies government's plan to move the capital from Batavia (modern-day Jakarta) to Bandung. The Dutch first established tea plantations around the mou ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Geothermal (geology)
Geothermal gradient is the rate of temperature change with respect to increasing depth in Earth's interior. As a general rule, the crust temperature rises with depth due to the heat flow from the much hotter mantle; away from tectonic plate boundaries, temperature rises in about 25–30 °C/km (72–87 °F/mi) of depth near the surface in most of the world. However, in some cases the temperature may drop with increasing depth, especially near the surface, a phenomenon known as ''inverse'' or ''negative'' geothermal gradient. The effects of weather, sun, and season only reach a depth of approximately 10-20 metres. Strictly speaking, ''geo''-thermal necessarily refers to Earth but the concept may be applied to other planets. In SI units, the geothermal gradient is expressed as °C/km, K/km, or mK/m. These are all equivalent. Earth's internal heat comes from a combination of residual heat from planetary accretion, heat produced through radioactive decay, latent hea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Volcanic Crater
A volcanic crater is an approximately circular depression in the ground caused by Volcano, volcanic activity. It is typically a bowl-shaped feature containing one or more vents. During Types of volcanic eruptions, volcanic eruptions, molten magma and volcanic gases rise from an underground magma chamber, through a conduit, until they reach the crater's vent, from where the gases escape into the atmosphere and the magma is erupted as lava. A volcanic crater can be of large dimensions, and sometimes of great depth. During certain types of explosive eruptions, a volcano's magma chamber may empty enough for an area above it to subside, forming a type of larger depression known as a caldera. Geomorphology In most volcanoes, the crater is situated at the top of a mountain formed from the erupted volcanic deposits such as lava flows and tephra. Volcanoes that terminate in such a summit crater are usually of a conical form. Other volcanic craters may be found on the flanks of volcanoe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fumarole
A fumarole (or fumerole) is a vent in the surface of the Earth or other rocky planet from which hot volcanic gases and vapors are emitted, without any accompanying liquids or solids. Fumaroles are characteristic of the late stages of volcanic activity, but fumarole activity can also precede a volcanic eruption and has been used for eruption prediction. Most fumaroles die down within a few days or weeks of the end of an eruption, but a few are persistent, lasting for decades or longer. An area containing fumaroles is known as a fumarole field. The predominant vapor emitted by fumaroles is steam, formed by the circulation of groundwater through heated rock. This is typically accompanied by volcanic gases given off by magma cooling deep below the surface. These volcanic gases include sulfur compounds, such as various sulfur oxides and hydrogen sulfide, and sometimes hydrogen chloride, hydrogen fluoride, and other gases. A fumarole that emits significant sulfur compounds is some ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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