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Heukcheon
Heukcheon () is a river of South Korea. It is a river of the Han River system and is a tributary of the Namhan River. The basin area is 314.02 km 2 and the total length is 37 km. Topographically, black forests are the largest part of the watershed with 73.92% and the agricultural area is 7.17%. The upper part of the river consists of gravel, pumice Pumice (), called pumicite in its powdered or dust form, is a volcanic rock that consists of highly vesicular rough-textured volcanic glass, which may or may not contain crystals. It is typically light-colored. Scoria is another vesicular vol ... stone and rock. The river is highly affected by nonpoint pollution sources. References Rivers of South Korea {{SouthKorea-river-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Han River (Korea)
The Han River or Hangang () is a major river in South Korea and the fourth longest river on the Korean peninsula after the Yalu River, Amnok (Yalu), Tumen River, Tuman (Tumen), and Nakdong rivers. The river begins as two smaller rivers in the eastern mountains of the Korean peninsula, which then converge near Seoul, the capital of the country. The Hangang River and its surrounding area have played an important role in Korean history. The Three Kingdoms of Korea strove to take control of this land, where the river was used as a trade route to China (via the Yellow Sea). The river is no longer actively used for navigation, because its estuary is located at the Korean Demilitarized Zone, borders of the two Koreas, barred for entrance by any civilian. The river serves as a water source for over 12 million South Koreans. In July 2000, the United States military admitted to having dumped formaldehyde in the sewer system connected to the river, causing protests. The lower stretches ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
South Korea
South Korea, officially the Republic of Korea (ROK), is a country in East Asia, constituting the southern part of the Korea, Korean Peninsula and sharing a Korean Demilitarized Zone, land border with North Korea. Its western border is formed by the Yellow Sea, while its eastern border is defined by the Sea of Japan. South Korea claims to be the sole legitimate government of the entire peninsula and List of islands of South Korea, adjacent islands. It has a Demographics of South Korea, population of 51.75 million, of which roughly half live in the Seoul Capital Area, the List of metropolitan areas by population, fourth most populous metropolitan area in the world. Other major cities include Incheon, Busan, and Daegu. The Korean Peninsula was inhabited as early as the Lower Paleolithic period. Its Gojoseon, first kingdom was noted in Chinese records in the early 7th century BCE. Following the unification of the Three Kingdoms of Korea into Unified Silla, Silla and Balhae in the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Namhan River
Namhan River (Namhan-gang, South Han River) is a major river of South Korea, the 2nd-longest. It is a tributary of the Han River. It is famous for clean and clear water, especially in its upper reaches and tributaries, and serves as a source of water for Seoul. A popular bike path follows the river. Several sections of it are used for public recreation, including rafting; some of these sections have their own traditional names, such as the "Dong-gang" or Dong River stretch, popular for natural beauty. Some part of this river was found to be contaminated by bis-(2-ethylhexyl)-phthalate (DEHP) with 50 ppb. Gallery File:Namhan River in front of Yeoju Library.jpg, Namhan River in Yeoju City File:Namhan River 02.jpg, Namhan River in Yangpyeong County with Yangpyeong Bridge on National Route 45 The following highways are numbered 45: International * Asian Highway 45 * European route E45 * AH45A, Asian Highway 45A Burma * National Road 45 (Burma) Canada * Alberta Highway ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pumice
Pumice (), called pumicite in its powdered or dust form, is a volcanic rock that consists of highly vesicular rough-textured volcanic glass, which may or may not contain crystals. It is typically light-colored. Scoria is another vesicular volcanic rock that differs from pumice in having larger vesicles, thicker vesicle walls, and being dark colored and denser.Jackson, J.A., J. Mehl, and K. Neuendorf (2005) ''Glossary of Geology'' American Geological Institute, Alexandria, Virginia. 800 pp. McPhie, J., M. Doyle, and R. Allen (1993) ''Volcanic Textures A guide to the interpretation of textures in volcanic rocks'' Centre for Ore Deposit and Exploration Studies, University of Tasmania, Hobart, Tasmania..198 pp. Pumice is created when super-heated, highly pressurized rock is violently ejected from a volcano. The unusual foamy configuration of pumice happens because of simultaneous rapid cooling and rapid depressurization. The depressurization creates bubbles by lowering the solubi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
