79-623: Tung Ping Chau ( Chinese : 東平洲 ) is an island in Hong Kong , part of Hong Kong UNESCO Global Geopark . It is also known as Ping Chau ( 平洲 ). Tung ( 東 , meaning east ) is prepended to the name at times so as to avoid possible confusion with Peng Chau , another island in Hong Kong with an identically pronounced name in Cantonese . Administratively, the island is part of the Tai Po District in
158-462: A planet 's mantle or crust . Typically, the melting is caused by one or more of three processes: an increase in temperature, a decrease in pressure , or a change in composition. Solidification into rock occurs either below the surface as intrusive rocks or on the surface as extrusive rocks. Igneous rock may form with crystallization to form granular, crystalline rocks, or without crystallization to form natural glasses . Igneous rocks occur in
237-503: A certain extent in South Korea , remain virtually identical to traditional characters, with variations between the two forms largely stylistic. There has historically been a debate on traditional and simplified Chinese characters . Because the simplifications are fairly systematic, it is possible to convert computer-encoded characters between the two sets, with the main issue being ambiguities in simplified representations resulting from
316-727: A checkered history. Guns and opium were once smuggled from here, and during the Cultural Revolution many mainlanders swam in hopes of reaching Ping Chau and the freedom of Hong Kong. The now virtually deserted island was once home to a thriving fishing and farm community of 3,000 people, with over 100 fishing junks . Historical villages of Ping Chau included the five oldest: Chau Mei ( 洲尾 ), Chau Tau ( 洲頭 ), Nai Tau ( 奶頭 ), Sha Tau ( 沙頭 ) and Tai Tong ( 大塘 ), as well as five other smaller family villages, which were subsequently developed: Chan Uk ( 陳屋 ), Lam Uk ( 林屋 ), Lei Uk ( 李屋 ), Tsau Uk ( 鄒屋 ) and Tsoi Uk ( 蔡屋 ). The village of Chau Mei
395-455: A combination of these processes. Other mechanisms, such as melting from a meteorite impact , are less important today, but impacts during the accretion of the Earth led to extensive melting, and the outer several hundred kilometres of our early Earth was probably an ocean of magma. Impacts of large meteorites in the last few hundred million years have been proposed as one mechanism responsible for
474-405: A crystalline basement formed of a great variety of metamorphic and igneous rocks, including granulite and granite. Oceanic crust is composed primarily of basalt and gabbro . Both continental and oceanic crust rest on peridotite of the mantle. Rocks may melt in response to a decrease in pressure, to a change in composition (such as an addition of water), to an increase in temperature, or to
553-520: A huge mass of analytical data—over 230,000 rock analyses can be accessed on the web through a site sponsored by the U. S. National Science Foundation (see the External Link to EarthChem). The single most important component is silica, SiO 2 , whether occurring as quartz or combined with other oxides as feldspars or other minerals. Both intrusive and volcanic rocks are grouped chemically by total silica content into broad categories. This classification
632-653: A microscope for fine-grained volcanic rock, and may be impossible for glassy volcanic rock. The rock must then be classified chemically. Mineralogical classification of an intrusive rock begins by determining if the rock is ultramafic, a carbonatite, or a lamprophyre . An ultramafic rock contains more than 90% of iron- and magnesium-rich minerals such as hornblende, pyroxene, or olivine, and such rocks have their own classification scheme. Likewise, rocks containing more than 50% carbonate minerals are classified as carbonatites, while lamprophyres are rare ultrapotassic rocks. Both are further classified based on detailed mineralogy. In
711-454: A result of long term wave actions. Lan Kwo Shui can be reached by foot from Kang Lau Shek, at low tide and in calm sea conditions. In the 1950s and 1960s, about 2000 were estimated to live on the island. Over the years the number of residents has dwindled to a mostly elderly population of about 50–60 total people. Many early residents of Ping Chau were from Shantou (Swatow) and they kept the tradition of worshiping Tam Kung after they settled on
790-671: A short distance north of Tung Ping Chau Public Pier. Basic dorms are available at Tai Tong Wan ( 大塘灣 ) and A Ma Wan ( 亞媽灣 ). Three buildings of Ping Chau are listed as Grade III Historic Buildings : the Tin Hau Temple, the Tam Tai Sin Temple, both in the village of Sha Tau, and the Old House, built in the 1940s in Chau Mei by Lee Mou-you ( 李戊有 ). Ping Chau has been designated as a Site of Special Scientific Interest since 1979. With
869-549: A simplified compositional classification, igneous rock types are categorized into felsic or mafic based on the abundance of silicate minerals in the Bowen's Series. Rocks dominated by quartz, plagioclase, alkali feldspar and muscovite are felsic. Mafic rocks are primarily composed of biotite, hornblende, pyroxene and olivine. Generally, felsic rocks are light colored and mafic rocks are darker colored. For textural classification, igneous rocks that have crystals large enough to be seen by
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#1733086057665948-601: A standard set of Chinese character forms used to write Chinese languages . In Taiwan , the set of traditional characters is regulated by the Ministry of Education and standardized in the Standard Form of National Characters . These forms were predominant in written Chinese until the middle of the 20th century, when various countries that use Chinese characters began standardizing simplified sets of characters, often with characters that existed before as well-known variants of
1027-462: A viscosity similar to thick, cold molasses or even rubber when erupted. Felsic magma, such as rhyolite , is usually erupted at low temperature and is up to 10,000 times as viscous as basalt. Volcanoes with rhyolitic magma commonly erupt explosively, and rhyolitic lava flows are typically of limited extent and have steep margins because the magma is so viscous. Felsic and intermediate magmas that erupt often do so violently, with explosions driven by
1106-569: A wide range of geological settings: shields, platforms, orogens, basins, large igneous provinces, extended crust and oceanic crust. Igneous and metamorphic rocks make up 90–95% of the top 16 kilometres (9.9 mi) of the Earth's crust by volume. Igneous rocks form about 15% of the Earth's current land surface. Most of the Earth's oceanic crust is made of igneous rock. Igneous rocks are also geologically important because: Igneous rocks can be either intrusive ( plutonic and hypabyssal) or extrusive ( volcanic ). Intrusive igneous rocks make up
1185-798: Is 産 (also the accepted form in Japan and Korea), while in Hong Kong, Macau and Taiwan the accepted form is 產 (also the accepted form in Vietnamese chữ Nôm ). The PRC tends to print material intended for people in Hong Kong, Macau and Taiwan, and overseas Chinese in traditional characters. For example, versions of the People's Daily are printed in traditional characters, and both People's Daily and Xinhua have traditional character versions of their website available, using Big5 encoding. Mainland companies selling products in Hong Kong, Macau and Taiwan use traditional characters in order to communicate with consumers;
1264-584: Is an example. The molten rock, which typically contains suspended crystals and dissolved gases, is called magma . It rises because it is less dense than the rock from which it was extracted. When magma reaches the surface, it is called lava . Eruptions of volcanoes into air are termed subaerial , whereas those occurring underneath the ocean are termed submarine . Black smokers and mid-ocean ridge basalt are examples of submarine volcanic activity. The volume of extrusive rock erupted annually by volcanoes varies with plate tectonic setting. Extrusive rock
1343-459: Is close to Nan'ao of Dapeng . The island has the shape of a kidney bean with its concave side facing northeast. Its name "Ping Chau" means "flat island" in Chinese. The highest points on the island are 48 metres (157 feet) in the south and 37 metres (121 feet) in the north. The eastern inner shore of the crescent hugs Ping Chau Hoi ( 平洲海 ) with a few beaches , including Cheung Sha Wan ( 長沙灣 ) in
1422-725: Is distinguishable from the other two on the TAS diagram, being higher in total alkali oxides for a given silica content, but the tholeiitic and calc-alkaline series occupy approximately the same part of the TAS diagram. They are distinguished by comparing total alkali with iron and magnesium content. These three magma series occur in a range of plate tectonic settings. Tholeiitic magma series rocks are found, for example, at mid-ocean ridges, back-arc basins , oceanic islands formed by hotspots, island arcs and continental large igneous provinces . All three series are found in relatively close proximity to each other at subduction zones where their distribution
1501-595: Is expressed differently for major and minor elements and for trace elements. Contents of major and minor elements are conventionally expressed as weight percent oxides (e.g., 51% SiO 2 , and 1.50% TiO 2 ). Abundances of trace elements are conventionally expressed as parts per million by weight (e.g., 420 ppm Ni, and 5.1 ppm Sm). The term "trace element" is typically used for elements present in most rocks at abundances less than 100 ppm or so, but some trace elements may be present in some rocks at abundances exceeding 1,000 ppm. The diversity of rock compositions has been defined by
1580-502: Is formed by the cooling of molten magma on the earth's surface. The magma, which is brought to the surface through fissures or volcanic eruptions , rapidly solidifies. Hence such rocks are fine-grained ( aphanitic ) or even glassy. Basalt is the most common extrusive igneous rock and forms lava flows, lava sheets and lava plateaus. Some kinds of basalt solidify to form long polygonal columns . The Giant's Causeway in Antrim, Northern Ireland
1659-436: Is most often used to classify plutonic rocks. Chemical classifications are preferred to classify volcanic rocks, with phenocryst species used as a prefix, e.g. "olivine-bearing picrite" or "orthoclase-phyric rhyolite". The IUGS recommends classifying igneous rocks by their mineral composition whenever possible. This is straightforward for coarse-grained intrusive igneous rock, but may require examination of thin sections under
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#17330860576651738-496: Is produced in the following proportions: The behaviour of lava depends upon its viscosity , which is determined by temperature, composition, and crystal content. High-temperature magma, most of which is basaltic in composition, behaves in a manner similar to thick oil and, as it cools, treacle . Long, thin basalt flows with pahoehoe surfaces are common. Intermediate composition magma, such as andesite , tends to form cinder cones of intermingled ash , tuff and lava, and may have
1817-402: Is related to depth and the age of the subduction zone. The tholeiitic magma series is well represented above young subduction zones formed by magma from relatively shallow depth. The calc-alkaline and alkaline series are seen in mature subduction zones, and are related to magma of greater depths. Andesite and basaltic andesite are the most abundant volcanic rock in island arc which is indicative of
1896-484: Is summarized in the following table: The percentage of alkali metal oxides ( Na 2 O plus K 2 O ) is second only to silica in its importance for chemically classifying volcanic rock. The silica and alkali metal oxide percentages are used to place volcanic rock on the TAS diagram , which is sufficient to immediately classify most volcanic rocks. Rocks in some fields, such as the trachyandesite field, are further classified by
1975-483: The Chinese Commercial News , World News , and United Daily News all use traditional characters, as do some Hong Kong–based magazines such as Yazhou Zhoukan . The Philippine Chinese Daily uses simplified characters. DVDs are usually subtitled using traditional characters, influenced by media from Taiwan as well as by the two countries sharing the same DVD region , 3. With most having immigrated to
2054-475: The IUGS , this is often impractical, and chemical classification is done instead using the TAS classification . Igneous rocks are classified according to mode of occurrence, texture, mineralogy, chemical composition, and the geometry of the igneous body. The classification of the many types of igneous rocks can provide important information about the conditions under which they formed. Two important variables used for
2133-449: The Kensiu language . Igneous rock Igneous rock ( igneous from Latin igneus 'fiery'), or magmatic rock , is one of the three main rock types , the others being sedimentary and metamorphic . Igneous rocks are formed through the cooling and solidification of magma or lava . The magma can be derived from partial melts of existing rocks in either
2212-605: The New Territories Small House Policy . Ping Chau is unique in the fact that it is the only sizeable island in Hong Kong made up of sedimentary rock. Hong Kong is mostly formed of extrusive igneous rocks , after a series of major volcanoes erupted during the Jurassic Period . Following the volcanic activity, a basin formed in the northeast, with deposition in a brackish lake—producing the siltstones and chert of Tung Ping Chau, which have been dated from
2291-532: The New Territories . Geographically, Ping Chau is an offshore island located in the northeast corner of Hong Kong in Mirs Bay , close to the border with Guangdong Province in mainland China . The island has an area of 1.16 km and consists of shale rock. The island is the most easterly point of the Hong Kong territory and is much closer to mainland China (4 km) than to the main landmass of Hong Kong. It
2370-622: The Shanghainese -language character U+20C8E 𠲎 CJK UNIFIED IDEOGRAPH-20C8E —a composition of 伐 with the ⼝ 'MOUTH' radical—used instead of the Standard Chinese 嗎 ; 吗 . Typefaces often use the initialism TC to signify the use of traditional Chinese characters, as well as SC for simplified Chinese characters . In addition, the Noto, Italy family of typefaces, for example, also provides separate fonts for
2449-453: The convection of solid mantle, it will cool slightly as it expands in an adiabatic process , but the cooling is only about 0.3 °C per kilometre. Experimental studies of appropriate peridotite samples document that the solidus temperatures increase by 3 °C to 4 °C per kilometre. If the rock rises far enough, it will begin to melt. Melt droplets can coalesce into larger volumes and be intruded upwards. This process of melting from
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2528-469: The 1640s and is derived either from French granit or Italian granito , meaning simply "granulate rock". The term rhyolite was introduced in 1860 by the German traveler and geologist Ferdinand von Richthofen The naming of new rock types accelerated in the 19th century and peaked in the early 20th century. Much of the early classification of igneous rocks was based on the geological age and occurrence of
2607-434: The 1960s. However, the concept of normative mineralogy has endured, and the work of Cross and his coinvestigators inspired a flurry of new classification schemes. Among these was the classification scheme of M.A. Peacock, which divided igneous rocks into four series: the alkalic, the alkali-calcic, the calc-alkali, and the calcic series. His definition of the alkali series, and the term calc-alkali, continue in use as part of
2686-683: The Cultural Revolution (1966–1976), political turmoil cut off commerce with the mainland and most villagers moved away. By the early 1970s, only a few elderly people remained on the island. In 2004, the last permanent resident moved out of Tung Ping Chau. Some may return on weekends. In 2013, the District Offices estimated that Tung Ping Chau had a population of 8. The villages of Ping Chau Chau Mei ( 平洲洲尾 ), Ping Chau Chau Tau ( 平洲洲頭 ), Ping Chau Nai Tau ( 平洲奶頭 ), Ping Chau Sha Tau ( 平洲沙頭 ) and Ping Chau Tai Tong ( 平洲大塘 ) are recognized villages under
2765-520: The Earth's surface. Intrusive igneous rocks that form at depth within the crust are termed plutonic (or abyssal ) rocks and are usually coarse-grained. Intrusive igneous rocks that form near the surface are termed subvolcanic or hypabyssal rocks and they are usually much finer-grained, often resembling volcanic rock. Hypabyssal rocks are less common than plutonic or volcanic rocks and often form dikes, sills, laccoliths, lopoliths , or phacoliths . Extrusive igneous rock, also known as volcanic rock,
2844-547: The People's Republic of China, traditional Chinese characters are standardised according to the Table of Comparison between Standard, Traditional and Variant Chinese Characters . Dictionaries published in mainland China generally show both simplified and their traditional counterparts. There are differences between the accepted traditional forms in mainland China and elsewhere, for example the accepted traditional form of 产 in mainland China
2923-521: The United States during the second half of the 19th century, Chinese Americans have long used traditional characters. When not providing both, US public notices and signs in Chinese are generally written in traditional characters, more often than in simplified characters. In the past, traditional Chinese was most often encoded on computers using the Big5 standard, which favored traditional characters. However,
3002-447: The basic TAS classification include: In older terminology, silica oversaturated rocks were called silicic or acidic where the SiO 2 was greater than 66% and the family term quartzolite was applied to the most silicic. A normative feldspathoid classifies a rock as silica-undersaturated; an example is nephelinite . Magmas are further divided into three series: The alkaline series
3081-563: The calc-alkaline magmas. Some island arcs have distributed volcanic series as can be seen in the Japanese island arc system where the volcanic rocks change from tholeiite—calc-alkaline—alkaline with increasing distance from the trench. Some igneous rock names date to before the modern era of geology. For example, basalt as a description of a particular composition of lava-derived rock dates to Georgius Agricola in 1546 in his work De Natura Fossilium . The word granite goes back at least to
3160-429: The chemical composition of an igneous rock was its most fundamental characteristic, it should be elevated to prime position. Geological occurrence, structure, mineralogical constitution—the hitherto accepted criteria for the discrimination of rock species—were relegated to the background. The completed rock analysis is first to be interpreted in terms of the rock-forming minerals which might be expected to be formed when
3239-625: The classification of igneous rocks are particle size, which largely depends on the cooling history, and the mineral composition of the rock. Feldspars , quartz or feldspathoids , olivines , pyroxenes , amphiboles , and micas are all important minerals in the formation of almost all igneous rocks, and they are basic to the classification of these rocks. All other minerals present are regarded as nonessential in almost all igneous rocks and are called accessory minerals . Types of igneous rocks with other essential minerals are very rare, but include carbonatites , which contain essential carbonates . In
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3318-402: The different types of extrusive igneous rocks than between different types of intrusive igneous rocks. Generally, the mineral constituents of fine-grained extrusive igneous rocks can only be determined by examination of thin sections of the rock under a microscope , so only an approximate classification can usually be made in the field . Although classification by mineral makeup is preferred by
3397-427: The early Paleogene period. It is also home to some spectacular cliffs and wave-cut platforms . Landforms such as these are very rarely found in the rest of Hong Kong. Cham Keng Chau (斬頸洲, "Chop Neck Islet"), in the northwest, is a chunk of land that has broken away from the island; the Chinese say it represents the head of a dragon. Another notable rock formation is Lung Lok Shui (龍落水, "Dragon Descend into Water"), on
3476-534: The exception of an area of old villages along its east coast, Ping Chau is part of the Plover Cove (Extension) Country Park , designated in 1979. The Tung Ping Chau Marine Park was designated in 2001 as the fourth Marine Park in Hong Kong . It occupies a sea area of about 270 hectares which encloses the island of Ping Chau. Ping Chau is one of the eight Geo-Areas of the Hong Kong Global Geopark , which
3555-480: The extensive basalt magmatism of several large igneous provinces. Decompression melting occurs because of a decrease in pressure. The solidus temperatures of most rocks (the temperatures below which they are completely solid) increase with increasing pressure in the absence of water. Peridotite at depth in the Earth's mantle may be hotter than its solidus temperature at some shallower level. If such rock rises during
3634-482: The great majority of cases, the rock has a more typical mineral composition, with significant quartz, feldspars, or feldspathoids. Classification is based on the percentages of quartz, alkali feldspar, plagioclase, and feldspathoid out of the total fraction of the rock composed of these minerals, ignoring all other minerals present. These percentages place the rock somewhere on the QAPF diagram , which often immediately determines
3713-493: The inverse is equally true as well. In digital media, many cultural phenomena imported from Hong Kong and Taiwan into mainland China, such as music videos, karaoke videos, subtitled movies, and subtitled dramas, use traditional Chinese characters. In Hong Kong and Macau , traditional characters were retained during the colonial period, while the mainland adopted simplified characters. Simplified characters are contemporaneously used to accommodate immigrants and tourists, often from
3792-565: The island. In the 1950s, there were about 1,500 people living in the ten villages on the island. Two primary schools were built: Kwan Ying School ( 群英學校 ) in Tai Tong and Wai Sun School ( 維新學校 ) in Chau Tau. At that time, the economy of the island deteriorated due to the depletion of fishery resources and the termination of trade with the mainland as a consequence of the Korean War (1950–1953). During
3871-401: The island. On one side of the island there are steep cliffs, below which is an amazing wave-cut platform , with jagged rocks, set at a 30-degree angle, like a staircase. Here there are many rock pools containing all manner of marine life, such as sea urchins and crabs. On the island's coastline at the pier side, there are over 60 different species of coral , and 35 species of algae . During
3950-555: The island. The island even had its own dialect, the Ping Chao dialect. Nowadays no longer spoken by many, you may still hear this dialect in the conversations between the villagers inside the restaurants. The island has a temple dedicated to Tin Hau , built in 1765, and a temple dedicated to Tam Kung : the Tam Tai Sin Temple ( 譚大仙廟 ), built before 1877. Both temples are located in the village of Sha Tau. Several other old buildings can be found on
4029-433: The larger crystals, called phenocrysts, grow to considerable size before the main mass of the magma crystallizes as finer-grained, uniform material called groundmass. Grain size in igneous rocks results from cooling time so porphyritic rocks are created when the magma has two distinct phases of cooling. Igneous rocks are classified on the basis of texture and composition. Texture refers to the size, shape, and arrangement of
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#17330860576654108-399: The magma crystallizes, e.g., quartz feldspars, olivine , akermannite, Feldspathoids , magnetite , corundum , and so on, and the rocks are divided into groups strictly according to the relative proportion of these minerals to one another. This new classification scheme created a sensation, but was criticized for its lack of utility in fieldwork, and the classification scheme was abandoned by
4187-725: The mainland. The increasing use of simplified characters has led to concern among residents regarding protecting what they see as their local heritage. Taiwan has never adopted simplified characters. The use of simplified characters in government documents and educational settings is discouraged by the government of Taiwan. Nevertheless, with sufficient context simplified characters are likely to be successfully read by those used to traditional characters, especially given some previous exposure. Many simplified characters were previously variants that had long been in some use, with systematic stroke simplifications used in folk handwriting since antiquity. Traditional characters were recognized as
4266-682: The majority of Chinese text in mainland China are simplified characters , there is no legislation prohibiting the use of traditional Chinese characters, and often traditional Chinese characters remain in use for stylistic and commercial purposes, such as in shopfront displays and advertising. Traditional Chinese characters remain ubiquitous on buildings that predate the promulgation of the current simplification scheme, such as former government buildings, religious buildings, educational institutions, and historical monuments. Traditional Chinese characters continue to be used for ceremonial, cultural, scholarly/academic research, and artistic/decorative purposes. In
4345-437: The majority of igneous rocks and are formed from magma that cools and solidifies within the crust of a planet. Bodies of intrusive rock are known as intrusions and are surrounded by pre-existing rock (called country rock ). The country rock is an excellent thermal insulator , so the magma cools slowly, and intrusive rocks are coarse-grained ( phaneritic ). The mineral grains in such rocks can generally be identified with
4424-457: The majority of minerals will be visible to the naked eye or at least using a hand lens, magnifying glass or microscope. Plutonic rocks also tend to be less texturally varied and less prone to showing distinctive structural fabrics. Textural terms can be used to differentiate different intrusive phases of large plutons, for instance porphyritic margins to large intrusive bodies, porphyry stocks and subvolcanic dikes . Mineralogical classification
4503-975: The merging of previously distinct character forms. Many Chinese online newspapers allow users to switch between these character sets. Traditional characters are known by different names throughout the Chinese-speaking world. The government of Taiwan officially refers to traditional Chinese characters as 正體字 ; 正体字 ; zhèngtǐzì ; 'orthodox characters'. This term is also used outside Taiwan to distinguish standard characters, including both simplified, and traditional, from other variants and idiomatic characters . Users of traditional characters elsewhere, as well as those using simplified characters, call traditional characters 繁體字 ; 繁体字 ; fántǐzì ; 'complex characters', 老字 ; lǎozì ; 'old characters', or 全體字 ; 全体字 ; quántǐzì ; 'full characters' to distinguish them from simplified characters. Some argue that since traditional characters are often
4582-697: The mineral grains or crystals of which the rock is composed. Texture is an important criterion for the naming of volcanic rocks. The texture of volcanic rocks, including the size, shape, orientation, and distribution of mineral grains and the intergrain relationships, will determine whether the rock is termed a tuff , a pyroclastic lava or a simple lava . However, the texture is only a subordinate part of classifying volcanic rocks, as most often there needs to be chemical information gleaned from rocks with extremely fine-grained groundmass or from airfall tuffs, which may be formed from volcanic ash. Textural criteria are less critical in classifying intrusive rocks where
4661-415: The naked eye are called phaneritic ; those with crystals too small to be seen are called aphanitic . Generally speaking, phaneritic implies an intrusive origin or plutonic, indicating slow cooling; aphanitic are extrusive or volcanic, indicating rapid cooling. An igneous rock with larger, clearly discernible crystals embedded in a finer-grained matrix is termed porphyry . Porphyritic texture develops when
4740-492: The naked eye. Intrusions can be classified according to the shape and size of the intrusive body and its relation to the bedding of the country rock into which it intrudes. Typical intrusive bodies are batholiths , stocks , laccoliths , sills and dikes . Common intrusive rocks are granite , gabbro , or diorite . The central cores of major mountain ranges consist of intrusive igneous rocks. When exposed by erosion, these cores (called batholiths ) may occupy huge areas of
4819-411: The northeast. In contrast, the western coast of the island is fairly rocky as a result of the greater wave action taking its toll on the inclined siltstone there. The island's largest village, Sha Tau ( 沙頭 ), is something of a ghost town, with many cottages boarded up. A large part of the island is country parkland , with footpaths overgrown with orchids, wild mint and morning glory . Ping Chau has
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#17330860576654898-665: The official script in Singapore until 1969, when the government officially adopted Simplified characters. Traditional characters still are widely used in contexts such as in baby and corporation names, advertisements, decorations, official documents and in newspapers. The Chinese Filipino community continues to be one of the most conservative in Southeast Asia regarding simplification. Although major public universities teach in simplified characters, many well-established Chinese schools still use traditional characters. Publications such as
4977-700: The original standard forms, they should not be called 'complex'. Conversely, there is a common objection to the description of traditional characters as 'standard', due to them not being used by a large population of Chinese speakers. Additionally, as the process of Chinese character creation often made many characters more elaborate over time, there is sometimes a hesitation to characterize them as 'traditional'. Some people refer to traditional characters as 'proper characters' ( 正字 ; zhèngzì or 正寫 ; zhèngxiě ) and to simplified characters as 簡筆字 ; 简笔字 ; jiǎnbǐzì ; 'simplified-stroke characters' or 減筆字 ; 减笔字 ; jiǎnbǐzì ; 'reduced-stroke characters', as
5056-825: The predominant forms. Simplified characters as codified by the People's Republic of China are predominantly used in mainland China , Malaysia, and Singapore. "Traditional" as such is a retronym applied to non-simplified character sets in the wake of widespread use of simplified characters. Traditional characters are commonly used in Taiwan , Hong Kong , and Macau , as well as in most overseas Chinese communities outside of Southeast Asia. As for non-Chinese languages written using Chinese characters, Japanese kanji include many simplified characters known as shinjitai standardized after World War II, sometimes distinct from their simplified Chinese counterparts . Korean hanja , still used to
5135-441: The ratio of potassium to sodium (so that potassic trachyandesites are latites and sodic trachyandesites are benmoreites). Some of the more mafic fields are further subdivided or defined by normative mineralogy , in which an idealized mineral composition is calculated for the rock based on its chemical composition. For example, basanite is distinguished from tephrite by having a high normative olivine content. Other refinements to
5214-403: The release of dissolved gases—typically water vapour, but also carbon dioxide . Explosively erupted pyroclastic material is called tephra and includes tuff , agglomerate and ignimbrite . Fine volcanic ash is also erupted and forms ash tuff deposits, which can often cover vast areas. Because volcanic rocks are mostly fine-grained or glassy, it is much more difficult to distinguish between
5293-473: The rock must be classified chemically. There are relatively few minerals that are important in the formation of common igneous rocks, because the magma from which the minerals crystallize is rich in only certain elements: silicon , oxygen , aluminium, sodium , potassium , calcium , iron, and magnesium . These are the elements that combine to form the silicate minerals , which account for over ninety percent of all igneous rocks. The chemistry of igneous rocks
5372-424: The rock type. In a few cases, such as the diorite-gabbro-anorthite field, additional mineralogical criteria must be applied to determine the final classification. Where the mineralogy of an volcanic rock can be determined, it is classified using the same procedure, but with a modified QAPF diagram whose fields correspond to volcanic rock types. When it is impractical to classify a volcanic rock by mineralogy,
5451-462: The rocks. However, in 1902, the American petrologists Charles Whitman Cross , Joseph P. Iddings , Louis V. Pirsson , and Henry Stephens Washington proposed that all existing classifications of igneous rocks should be discarded and replaced by a "quantitative" classification based on chemical analysis. They showed how vague, and often unscientific, much of the existing terminology was and argued that as
5530-505: The southwestern coast, thus named because it resembles the spine of a dragon entering the sea. At the island's southeastern end are two large rocks known as the Drum Rocks, or Kang Lau Shek (更樓石, "Watchman's Tower Rocks"). They are 7-to-8-metre (23-to-26-foot) sea stacks on a wave-cut platform. Lan Kwo Shui (難過水, "Difficult-to-cross Waters") features a long vertical cliff located along the southern coast, where several caves were formed there as
5609-627: The traditional character set used in Taiwan ( TC ) and the set used in Hong Kong ( HK ). Most Chinese-language webpages now use Unicode for their text. The World Wide Web Consortium (W3C) recommends the use of the language tag zh-Hant to specify webpage content written with traditional characters. In the Japanese writing system , kyujitai are traditional forms, which were simplified to create shinjitai for standardized Japanese use following World War II. Kyūjitai are mostly congruent with
5688-970: The traditional characters in Chinese, save for minor stylistic variation. Characters that are not included in the jōyō kanji list are generally recommended to be printed in their traditional forms, with a few exceptions. Additionally, there are kokuji , which are kanji wholly created in Japan, rather than originally being borrowed from China. In the Korean writing system , hanja —replaced almost entirely by hangul in South Korea and totally replaced in North Korea —are mostly identical with their traditional counterparts, save minor stylistic variations. As with Japanese, there are autochthonous hanja, known as gukja . Traditional Chinese characters are also used by non-Chinese ethnic groups. The Maniq people living in Thailand and Malaysia use Chinese characters to write
5767-509: The ubiquitous Unicode standard gives equal weight to simplified and traditional Chinese characters, and has become by far the most popular encoding for Chinese-language text. There are various input method editors (IMEs) available for the input of Chinese characters . Many characters, often dialectical variants, are encoded in Unicode but cannot be inputted using certain IMEs, with one example being
5846-485: The weekends, many people visit the island. These include those who have come to dive and those who have come to see the cliffs and wave-cut platforms. Some people also use it as a weekend home. 57,000 people visited Ping Chau in 2005. There is a camping site as well as picnic and barbecue sites on the island, managed by the Agriculture, Fisheries and Conservation Department . A few basic restaurants can be found at Tai Tong,
5925-572: The widely used Irvine-Barager classification, along with W.Q. Kennedy's tholeiitic series. By 1958, there were some 12 separate classification schemes and at least 1637 rock type names in use. In that year, Albert Streckeisen wrote a review article on igneous rock classification that ultimately led to the formation of the IUGG Subcommission of the Systematics of Igneous Rocks. By 1989 a single system of classification had been agreed upon, which
6004-571: The words for simplified and reduced are homophonous in Standard Chinese , both pronounced as jiǎn . The modern shapes of traditional Chinese characters first appeared with the emergence of the clerical script during the Han dynasty c. 200 BCE , with the sets of forms and norms more or less stable since the Southern and Northern dynasties period c. the 5th century . Although
6083-460: Was further revised in 2005. The number of recommended rock names was reduced to 316. These included a number of new names promulgated by the Subcommission. The Earth's crust averages about 35 kilometres (22 mi) thick under the continents , but averages only some 7–10 kilometres (4.3–6.2 mi) beneath the oceans . The continental crust is composed primarily of sedimentary rocks resting on
6162-756: Was inaugurated in November 2009. The island is reachable by ferry from Ma Liu Shui ferry pier, near the Chinese University of Hong Kong . The landing point is the Tung Ping Chau Public Pier ( 東平洲公眾碼頭 ), the only public pier on Ping Chau, located near the centre of the island at Wong Ye Kok ( 王爺角 ). Improvement works on the pier were completed in 2007. The ferry service is operated by Tsui Wah Ferry on Saturdays, Sundays and public holidays only. The journey takes 1 hour 40 minutes. Traditional Chinese characters Traditional Chinese characters are
6241-517: Was settled by fishermen who sold their catch at Tai Po Market and at Shayuchong ( 沙魚涌 ), a coastal village now part of the Longgang District of Shenzhen . During the Japanese occupation of Hong Kong (1941–1945), Ping Chau was used as a logistics base for the supply of military resources, including petrol, to the Chinese army . Several allied military leaders were transported to the mainland via
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