1,721,334 research outputs found
Construction of the Chuncheon Dam(춘천댐 공사 전경)
No full text노트 : This photo was taken at the Chuncheon Dam in Gangwon-do, South Korea.Photo caption: Construction site of the Chuncheon Dam. The surface area of the lake created as a result of the Chuncheon Dam construction amounted to 17km2
Construction site of Chuncheon power plant(춘천발전소 제2단계 공사)
No full text노트 : This photo was taken at Chuncheon power plant in Gangwon-do, South Korea.Photo caption: The construction site of Chuncheon power plant in Gangwon-do, South Korea. The construction began on September 21, 1961 and ended on December 31, 1964
Chuncheon hydroelectric power plant construction site(1)(춘천 수력발전소 공사)
No full text노트 : This photo was taken at the Chuncheon hydroelectric power plant in Gangwon-do, South Korea.Photo caption: This is a photo of the Chuncheon hydroelectric power plant construction site
Chuncheon hydroelectric power plant construction site(2)(춘천 수력발전소 공사)
No full text노트 : This photo was taken at the Chuncheon hydroelectric power plant in Gangwon-do, South Korea.Photo caption: This is a photo of the Chuncheon hydroelectric power plant construction site
Chuncheon hydroelectric power plant construction site(3)(춘천 수력발전소 공사)
No full text노트 : This photo was taken at the Chuncheon hydroelectric power plant in Gangwon-do, South Korea.Photo caption: This is a photo of the Chuncheon hydroelectric power plant construction site
Construction site of power plant in Chuncheon(춘천 발전소 건설현장)
No full text노트 : This photo was taken at a hydroelectric power plant in Chuncheon, Gangwon-do, South Korea.Photo caption: New construction to add power capacity at the hydroelectric power plant in Chuncheon, Gangwon-do, South Korea
A view inside the inner structure of the Chuncheon Dam(준공된 춘천댐 내부)
No full text노트 : This photo was taken in Chuncheon, Gangwon-do, South Korea.Photo caption: A view inside the inner structure of the Chuncheon Dam
Completion of an electric facility in Chuncheon district(춘천지구의 전기시설 준공)
No full text노트 : This photo was taken in Chuncheon, Gangwon-do.Photo caption: An electric facility for the Chuncheon district was completed in Gangwon-do, South Korea
Geochemical Characteristics of Nephrite from Chuncheon, South Korea: Implications for Geographic Origin Determination of Nephrite from Dolomite-Related Deposits
No full textThe Chuncheon nephrite deposit in South Korea is one of the major nephrite deposits in the world, but its origin has been rarely studied. This study explores the mineralogical and geochemical characteristics of the Chuncheon nephrite using a polarizing microscope, an electron microprobe, laser ablation, inductively coupled plasma mass spectrometry, and hydrogen–oxygen isotope analyses and compares them with dolomite-related nephrite worldwide. The main mineral of Chuncheon nephrite is tremolite, which has a felted blastic texture, secondary filling texture, and metasomatic pseudomorphic texture that nephrites from other regions do not have. Chuncheon nephrite is dolomite-related; the total content of rare earth elements is generally low, with highly variable positive and negative Eu anomalies and weak positive Ce anomalies; and the light rare earth elements are enriched. The Chuncheon nephrite formed in an anaerobic alkaline environment with a low degree of mineralization, and the hydrothermal fluids are predominantly meteoric water. Nephrite from different regions has different geochemical characteristics as well as different abundances of rare earth element contents. According to the content and range of elements, such as δCe, δEu, ΣREE, (La/Sm)N, and other rare earth elements, dolomite-type nephrite from different origins can be roughly distinguished
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