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Pacitan
Pacitan Regency ( id, Kabupaten Pacitan) is a regency located in the southwestern corner of East Java Province, with Central Java Province on its western border. Located between 7.55° - 8.17°S and 110.55° - 111.25°E. The borders of Pacitan Regency are: Wonogiri Regency (Central Java) in the west, Ponorogo Regency and Trenggalek Regency in the east, and the Indian Ocean in the south. It covers an area of 1,389.87 km2 and had a population of 540,881 at the 2010 census and 586,110 at the 2020 census. The capital of Pacitan Regency is Pacitan town. The majority of citizens in Pacitan speak Javanese as their first language, while speaking Indonesian as a second language. Geography The area of Pacitan Regency is about 1,389.87 km2. Most of it is mountainous and rocky, also having a few rocky canyons. That sort of geography covers about 88% of the regency, and this is because Pacitan is located in the Thousand Mountains. The highest mountain in Pacitan is Mount Lima in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
East Java
East Java ( id, Jawa Timur) is a Provinces of Indonesia, province of Indonesia located in the easternmost hemisphere of Java island. It has a land border only with the province of Central Java to the west; the Java Sea and the Indian Ocean border its northern and southern coasts, respectively, while the narrow Bali Strait to the east separates Java from Bali by around . Located in eastern Java (island), Java, the province also includes the island of Madura Island, Madura (which is connected to Java by the longest bridge in Indonesia, the Suramadu Bridge), as well as the Kangean Islands, Kangean islands and other smaller island groups located further east (in the northern Bali Sea) and Masalembu Islands, Masalembu archipelagos in the north. Its capital is Surabaya, the Largest cities in Indonesia, second largest city in Indonesia, a major industrial center and also a major business center. Banyuwangi is the largest regency in East Java and the largest on the island of Java. The p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Regencies And Cities Of Indonesia
Regencies (''kabupaten'') and cities (''kota'') are the second-level administrative subdivision in Indonesia, immediately below the provinces, and above the districts. Regencies are roughly equivalent to American counties, although most cities in the United States are below the counties. Following the implementation of decentralization beginning on 1 January 2001, regencies and city municipalities became the key administrative units responsible for providing most governmental services. Each of regencies and cities has their own local government and legislative body. The difference between a regency and a city lies in demography, size, and economy. Generally, a regency comprises a rural area larger than a city, but also often includes various towns. A city usually has non-agricultural economic activities. A regency is headed by a regent (''bupati''), while a city is headed by a mayor (''wali kota''). All regents, mayors, and members of legislatures are directly elected via ele ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Trenggalek Regency
Trenggalek Regency is a regency ''(kabupaten)'' in East Java, Indonesia. This regency has an area of 1,261.40 km2 and had a population of 674,411 residents at the 2010 Census and 731,125 at the 2020 Census. It is located on the southern shore of East Java and is surrounded by three regencies: Ponorogo to the northwest; Pacitan to the southwest; and Tulungagung to the east. The administrative centre is located in the district (''kecamatan'') of Trenggalek''. Geography Trenggalek is a regency that is located on the southern shore of Java island and has the following geographical boundaries: * To the northwest: Ponorogo; * To the southwest: Pacitan; * To the east: Tulungagung; * To the south: Indian Ocean, and * To the north: Mount Wilis. Administrative districts The Regency is divided into fourteen districts (''kecamatan''), tabulated below with their areas and their population totals from the 2010 Census and the 2020 Census. The table also includes the location of the di ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Javanese Language
Javanese (, , ; , Aksara Jawa: , Pegon: , IPA: ) is a Malayo-Polynesian language spoken by the Javanese people from the central and eastern parts of the island of Java, Indonesia. There are also pockets of Javanese speakers on the northern coast of western Java. It is the native language of more than 98 million people. Javanese is the largest of the Austronesian languages in number of native speakers. It has several regional dialects and a number of clearly distinct status styles. Its closest relatives are the neighboring languages such as Sundanese, Madurese, and Balinese. Most speakers of Javanese also speak Indonesian for official and commercial purposes as well as a means to communicate with non-Javanese-speaking Indonesians. There are speakers of Javanese in Malaysia (concentrated in the West Coast part of the states of Selangor and Johor) and Singapore. Javanese is also spoken by traditional immigrant communities of Javanese descent in Suriname, Sri Lanka an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gunung Sewu
Gunung Sewu (Thousand mountains) is the name for the karst region of southern central Java that lies to the south east of Yogyakarta, south of Surakarta, and is considered a very dry and poor socio-economical region in Java. It has poor rainfall compared to the volcanic mountain areas to the north and east. Administratively most of the region is part of Gunung Kidul Regency, within the Yogyakarta province besides Wonogiri Regency and Pacitan Regency. In 1993, the world speleologs proposed Sewu Mountains Karst Area as a world heritage. And on December 6, 2004 Sewu Mountains and South Gombong have been announced as eco-karst. It is a region where archaeological evidence shows very early human activity It is very popular with cavers. There are 119 caves below of about 40,000 karst cone hills in 13,000 square kilometer area. The only cave-adapted crab from Java, '' Sesarmoides jacobsoni'' (Sesarmidae), is endemic to the Gunung Sewu cave system. Global Geopark Network UNESCO On Se ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Coal
Coal is a combustible black or brownish-black sedimentary rock, formed as rock strata called coal seams. Coal is mostly carbon with variable amounts of other elements, chiefly hydrogen, sulfur, oxygen, and nitrogen. Coal is formed when dead plant matter decays into peat and is converted into coal by the heat and pressure of deep burial over millions of years. Vast deposits of coal originate in former wetlands called coal forests that covered much of the Earth's tropical land areas during the late Carboniferous ( Pennsylvanian) and Permian times. Many significant coal deposits are younger than this and originate from the Mesozoic and Cenozoic eras. Coal is used primarily as a fuel. While coal has been known and used for thousands of years, its usage was limited until the Industrial Revolution. With the invention of the steam engine, coal consumption increased. In 2020, coal supplied about a quarter of the world's primary energy and over a third of its electricity. Some iron ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dolomite (mineral)
Dolomite () is an anhydrous carbonate mineral composed of calcium magnesium carbonate, ideally The term is also used for a sedimentary carbonate rock composed mostly of the mineral dolomite. An alternative name sometimes used for the dolomitic rock type is dolostone. History As stated by Nicolas-Théodore de Saussure the mineral dolomite was probably first described by Carl Linnaeus in 1768. In 1791, it was described as a rock by the French naturalist and geologist Déodat Gratet de Dolomieu (1750–1801), first in buildings of the old city of Rome, and later as samples collected in the mountains now known as the Dolomite Alps of northern Italy. Nicolas-Théodore de Saussure first named the mineral (after Dolomieu) in March 1792. Properties The mineral dolomite crystallizes in the trigonal-rhombohedral system. It forms white, tan, gray, or pink crystals. Dolomite is a double carbonate, having an alternating structural arrangement of calcium and magnesium ions. Unless it ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Quartz
Quartz is a hard, crystalline mineral composed of silica (silicon dioxide). The atoms are linked in a continuous framework of SiO4 silicon-oxygen tetrahedra, with each oxygen being shared between two tetrahedra, giving an overall chemical formula of SiO2. Quartz is the second most abundant mineral in Earth's continental crust, behind feldspar. Quartz exists in two forms, the normal α-quartz and the high-temperature β-quartz, both of which are chiral. The transformation from α-quartz to β-quartz takes place abruptly at . Since the transformation is accompanied by a significant change in volume, it can easily induce microfracturing of ceramics or rocks passing through this temperature threshold. There are many different varieties of quartz, several of which are classified as gemstones. Since antiquity, varieties of quartz have been the most commonly used minerals in the making of jewelry and hardstone carvings, especially in Eurasia. Quartz is the mineral defining the val ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Phosphate Rock
Phosphorite, phosphate rock or rock phosphate is a non-detrital sedimentary rock that contains high amounts of phosphate minerals. The phosphate content of phosphorite (or grade of phosphate rock) varies greatly, from 4% to 20% phosphorus pentoxide (P2O5). Marketed phosphate rock is enriched ("beneficiated") to at least 28%, often more than 30% P2O5. This occurs through washing, screening, de-liming, magnetic separation or flotation. By comparison, the average phosphorus content of sedimentary rocks is less than 0.2%.Blatt, Harvey and Robert J. Tracy, ''Petrology'', Freeman, 1996, 2nd ed. pp. 345–349 The phosphate is present as fluorapatite Ca5(PO4)3F typically in cryptocrystalline masses (grain sizes < 1 μm) referred to as -sedimentary apatite deposits of uncertain origin. It is also present as [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gypsum
Gypsum is a soft sulfate mineral composed of calcium sulfate dihydrate, with the chemical formula . It is widely mined and is used as a fertilizer and as the main constituent in many forms of plaster, blackboard or sidewalk chalk, and drywall. Alabaster, a fine-grained white or lightly tinted variety of gypsum, has been used for sculpture by many cultures including Ancient Egypt, Mesopotamia, Ancient Rome, the Byzantine Empire, and the Nottingham alabasters of Medieval England. Gypsum also crystallizes as translucent crystals of selenite. It forms as an evaporite mineral and as a hydration product of anhydrite. The Mohs scale of mineral hardness defines gypsum as hardness value 2 based on scratch hardness comparison. Etymology and history The word ''gypsum'' is derived from the Greek word (), "plaster". Because the quarries of the Montmartre district of Paris have long furnished burnt gypsum (calcined gypsum) used for various purposes, this dehydrated gypsum became known ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Calcite
Calcite is a Carbonate minerals, carbonate mineral and the most stable Polymorphism (materials science), polymorph of calcium carbonate (CaCO3). It is a very common mineral, particularly as a component of limestone. Calcite defines hardness 3 on the Mohs scale of mineral hardness, based on Scratch hardness, scratch hardness comparison. Large calcite crystals are used in optical equipment, and limestone composed mostly of calcite has numerous uses. Other polymorphs of calcium carbonate are the minerals aragonite and vaterite. Aragonite will change to calcite over timescales of days or less at temperatures exceeding 300 °C, and vaterite is even less stable. Etymology Calcite is derived from the German ''Calcit'', a term from the 19th century that came from the Latin word for Lime (material), lime, ''calx'' (genitive calcis) with the suffix "-ite" used to name minerals. It is thus etymologically related to chalk. When applied by archaeology, archaeologists and stone trade pr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
