http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
- 中文 을 입력하시려면 zhongwen을 입력하시고 space를누르시면됩니다.
- 北京 을 입력하시려면 beijing을 입력하시고 space를 누르시면 됩니다.
RISS 인기검색어
- 검색키워드
- 저자 : Moon Young Kim(金炆榮) (검색결과 2 건)
- 무료
- 기관 내 무료
- 유료
-
Hong Ja Shin(申虹子),Moon Young Kim(金炆榮),Chil Sup So(蘇七燮) 대한자원환경지질학회 1987 자원환경지질 Vol.20 No.1
The Daejang mine is one of the representatives of Cu-Pb-Zn-(Ag) vein deposit related genetically to late Cretaceous granitoid in Korea. Sericite from an alteration halo of the mine yielded a K-Ar date of 95±3.5Ma. Based on macrostructures of vein filling, three major mineralization stages(Ⅰ, Ⅱ and Ⅲ) are distinguished by tectonic breaks. Major ore constituents are arsenopyrite, pyrite, pyrrhotite, sphalerite, chalcopyrite, galena, boulangerite, with small amounts of Ag-bearing tetrahedrite, pyrargyrite, native bismuth, marcasite, siderite, ankerite, gudmundite and calcite. Characteristic feature of each mineralization stage and compositional variation of sphalerite and arsenopyrite are discussed in relation to the genetic environments. The FeS contents of sphalerites are 20.5~14.9 mole % in stage Ⅰ, 17.9~11.9 mole % in stage ⅡA, 17.0~9.2 mole % in stage ⅡB, and 6.9~4.7 mole % in stage Ⅲ. Their results are indicative of decreasing FeS contents during mineralization process in sphalerite coexisting with sulfur-rich sulfide assemblages, such as monoclinic pyrrhotite and pyrite, and is agreement with the conclusions shown by Scott and Kissin(1973). The composition of arsenopyrite decrease also in As content from stage Ⅰ to stage Ⅲ, and the compositional variation correlate with position of the associated minerals in the paragenesis. Temperature and pressure of the mineralization are determined as 250~430℃ and 4.0~0.3kb respectively, based on the chemistry of the minerals.
-
Mineralogical studies on sulfide ore species of the Tong Myeong tungsten deposits
Pyeong koo Lee(李匉九),Chil sup So(蘇七燮),Se hyun Kim(金世鉉),Seong taek Yun(尹聖澤),Moon young Kim(金炆榮) 대한자원환경지질학회 1986 자원환경지질 Vol.19 No.5
스카른형 東明灰重石鑛床은 朝鮮系 大石灰岩統에 대비되는 三台山層과 이를 관입한 쥬라기 花崗閃綠岩과의 접촉대에 발달한 接觸交代鑛床이다. 鑛化作用은 스카른시기, 열수시기, 후기열수시기의 3회에 걸쳐 진행되었으며, 접촉부로부터 규회석, 투휘석, 투회석-석류석, 석류석, 베스비아나이트 스카른帶가 불규칙한 帶狀分布한다. 灰重石은 규회석스카른을 제외한 모든 스카른帶와 열수시기초기 石英脈에서 산출되며, 특히 磁硫鐵石, 方鉛石, 베스비아나이트와 밀접하게 共生한다. 즉 磁硫鐵石이 침전되면서 유리되 나온 水素이온은 모암인 石灰岩과 反應, 분리된 Ca이온의 活性度가 증가되며 灰重石이 침전된 것으로 사료된다. 한편 東明鑛山産 主 및 副成分 硫化鑛物을 대상으로한 物性실험 연구를 통하여, 鑛化時期 및 鑛物의 內部反射현상에 따른 反射度 · 微硬度의 상관성을 검토하고 光學的 對稱性을 연구하여 황동석과 백철석은 2軸性(-), 반동석은 2軸性(+)임을 밝혔으며 유비철석은 2軸性이나 對稱性을 결정할 수 없었다. 微硬度실험에서는 硬度가 낮은 광물일수록 하중에 따른 微硬度값의 변화경향이 적으며, 실험된 광물은 모두 특징적인 indentation을 보여 광물감정에 이용될 수 있을 것으로 고려된다. The skarn type tungsten deposits in Jechon area are developed in the contact aureole of Jurassic granodiorite and lower Paleozoic limestone beds. The Tong Myeong mine contains scheelite-bearing skarns found at and near the contacts between crystalline limestone and hornfels. Although the skarns are heterogeneous, there are clear patterns in the preferred associations and nonassociations of minerals on all scales. The skarn show a zonal arrangement from limestone to hydrothermal vein as follow: wollastonite skarn, clinopyroxene skarn, clinopyroxene-garnet skarn, garnet skarn, and vesuvianite skarn. Scheelite, abundant in all skarn units except wollastonite skarn and also in quartz veins near orebodies, is everywhere strongly correlated with pyrrhotite. It is implied that it was a stable phase throughout the evolution of the zoned skarns, at least in pyrrhotite-forming environments. Deposition of scheelite was probably widely caused by increasing aCa²⁺ in the fluid, resulting from associated and interrelated reactions: FeCl₂ aq+H₂S aq→FeS+2H⁺+2Cl⁻; and CaCO₃+2H⁺→Ca²⁺+H₂CO₃. The spectral reflection powers of nine sulfide species were studied, for three mineralization stage. The shapes and characteristics of the spectral reflectivity profiles are significant in their control of other optical properties. The characteristics of the Vickers microhardness and the optical symmetry for the minerals studied are discussed. Broad radicle groupings of the sulfides can be made with regard to the reflectivity-microhardness values.
연관 검색어 추천
이 검색어로 많이 본 자료
활용도 높은 자료
