Related Research Articles
Ore is natural rock or sediment that contains one or more valuable minerals,typically containing metals,that can be mined,treated and sold at a profit. Ore is extracted from the earth through mining and treated or refined,often via smelting,to extract the valuable metals or minerals. The grade of ore refers to the concentration of the desired material it contains. The value of the metals or minerals a rock contains must be weighed against the cost of extraction to determine whether it is of sufficiently high grade to be worth mining,and is therefore considered an ore.
Primorsky Krai,informally known as Primorye and translated in full as Maritime Territory,is a federal subject of Russia,located in the Far East region of the country and is a part of the Far Eastern Federal District. The city of Vladivostok is the administrative center of the krai,and the second largest city in the Russian Far East,after Khabarovsk. The krai has the largest economy among the federal subjects in the Russian Far East,and a population of 1,956,497 as of the 2010 Census.
Jade is a mineral,much used in some cultures as jewellery and for ornaments,mostly known for its green varieties,though it appears naturally in other colors as well,notably yellow and white. Jade can refer to either of two different silicate minerals:nephrite,or jadeite.
The Witwatersrand is a 56-kilometre-long (35 mi),north-facing scarp in South Africa. It consists of a hard,erosion-resistant quartzite metamorphic rock,over which several north-flowing rivers form waterfalls,which account for the name Witwatersrand,meaning "ridge of white waters" in Afrikaans. This east-west-running scarp can be traced with only one short gap,from Bedfordview in the east,through Johannesburg and Roodepoort,to Krugersdorp in the west.
The Han River,also known by its Chinese names Hanshui and Han Jiang,is a left tributary of the Yangtze in central China. It has a length of 1,532 kilometers (952 mi) and is the longest tributary of the Yangtze system.
Hanzhong is a prefecture-level city in the southwest of Shaanxi province,China,bordering the provinces of Sichuan to the south and Gansu to the west.
Ankang is a prefecture-level city in the south of Shaanxi Province in the People's Republic of China,bordering Hubei province to the east,Chongqing municipality to the south,and Sichuan province to the southwest.
Dazhou is a prefecture-level city in the northeast corner of Sichuan province,China,bordering Shaanxi to the north and Chongqing to the east and south. As of 2020 census,Dazhou was home to 5,385,422 inhabitants whom 1,850,869 lived in the built-up area made of 2 urban districts.
Ankang Wulipu Airport was an airport serving the city of Ankang in Shaanxi Province,China. It was located in the town of Wuli in Hanbin District,9 kilometres (5.6 mi) from the city center. The new Ankang Fuqiang Airport replaced the Wulipu Airport when it opened on September 25,2020.
Huyi District formerly known as Hu County,or Huxian,is one of 11 urban districts of the prefecture-level city of Xi'an,the capital of Shaanxi Province,Northwest China. The district was approved to establish from the former Hu County (户县) by the Chinese State Council on November 24,2016. As of 2018,its population was 558,600. The district borders the prefecture-level cities of Xianyang to the north and Ankang to the south and Chang'an District to the east.
Xixiang County is a county under the administration of Hanzhong City,in the southwest of Shaanxi province,China,bordering Sichuan province to the southwest. Its administrative center,Xixiang,formerly known as Hsihsiang,lies on the Muma River. The county contains fourteen towns,eleven townships,and covers an area of 3,240 km2 (1,250 sq mi).
Mian County or Mianxian is a county of Hanzhong,in the southwest of Shaanxi province,China,bordering Gansu province to the northwest. Its area measures 2,406 km2 (929 sq mi),and its total population as of 2020 was 429,000 people. During the Qin and Han dynasty is was known as Mianshui (沔水). In 1964 it was renamed to Mianxian with a homophone character for Mian,to avoid the use of uncommon characters in place names. In 2020,the county government requested the name of the county to be changed to Mianzhou (沔州市),pending central government approval. Previously the government requested to use the name Dingjunshan City,but this was denied by the central government.
Hanbin District is a district of the City of Ankang in Shaanxi Province,China and the seat of the city's government. It has a population of 886,393 as of 2019 and an area of 3,645.91 km2. With forests covering 68.8% of its land,the district abounds in natural resources and remains a popular destination of tourism in Shaanxi.
Xunyang is a county-level city in the south of Shaanxi province,China,bordering Hubei province to the northeast and southeast. It is under the administration of the prefecture-level city of Ankang. Its administrative seat is in the town of Chengguan. The county covers an area of 3,540.8 square kilometres (1,367.1 sq mi),and has a population of 450,122 as of 2019.
Shaannan or Southern Shaanxi refers to the portion of China's Shaanxi province south of the Qinling Mountains. Its name derives from the province's abbreviation "Shaan" (陕) combined with the word "Nan",its geographical location within the province.
The Xi'an–Ankang railway or Xikang railway,is a single-track,electrified railway line in Shaanxi Province of China between Xi'an,the provincial capital,and Ankang. The line is 247.7 km (154 mi) long and was built from 1995 to 2001. As of June 2009,a second track is being planned for the line. Major cities and towns along route include Xi'an,Zhashui,Zhen'an County,Xunyang County and Ankang.
The Yangpingguan–Ankang railway or Yang'an railway,is a single-track,electrified railroad in China between Yangpingguan and Ankang in southern Shaanxi Province. The line,356 km (221 mi) in length,follows the upper reaches of the Han River and was built from 1969 to 1972. Major cities and towns along route include Yangpingguan,Mian County,Hanzhong,Chenggu,Yang County,Xixiang,Shiquan,Hanyin and Ankang.
Ankang Fuqiang Airport is an airport in Ankang,Shaanxi province,China,located 15 kilometres (9.3 mi) northwest of city center in the town of Wuli,Hanbin District. Proposed as a replacement of Ankang Wulipu Airport,the Fuqiang Airport project commenced in 2013,and its construction began in December 2015,with an estimated total investment of 2.35 billion yuan. The airport opened on September 25,2020 for public use,as its first commercial flight China Southern Airlines CZ5269 arrived from Guangzhou.
Jin Prefecture,also known by its Chinese name Jinzhou,was a prefecture of imperial China. Its seat—also known as Jinzhou—was at Xicheng.
Ankang class ambulance craft is a class of little known naval auxiliary ship currently in service with the People's Liberation Army Navy (PLAN). The name of this class is after the first unit commissioned,with the exact type still remains unknown,because the only official Chinese governmental information released on these crafts is that they are classified as fast ambulance craft. By Chinese classification,any naval vessel with displacement above a thousand ton is classified as ship / warship,and any naval vessel with displacement less than a thousand ton is classified as a boat / craft. Beiyi 01 class is the only boat / craft in the Chinese navy that is capable of hosting a helicopter,though it only has a landing pad,but not any hangar. A total of five units of this class have been confirmed in active service as of mid-2010s.
References
- ↑ Wang Weizhi; et al. (2011), "Comprehensive Utilization and Resources of Gold Mining Tailings", Key Engineering Materials, vol. 480, pp. 1438–41.