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Mode of Occurrences and Depositional Conditions of Stannite from the Yeonhwa 1 Mine
정재일,Chung, Je-Il The Korean Society of Economic and Environmental G 1993 자원환경지질 Vol.26 No.3
제 1 연화 광산에서 산출되는 황석석은 생성 시기를 기준으로 하면 비교적 이른 시기 (Stage I)에 산출된 황석석 I (Stannite I)과 늦은 시기 (Stage II)의 황석석 II (Stannite Il)로 나눌 수 있으며 산출상태를 기준으로 하여 섬아연석과 밀접히 공생하는 황석석 1 (Stannite 1)과 방연석과 밀접히 공생하는 황석석 2 (Stannite 2)로 나누어진다. 일반적으로 황석석 1은 황석석 I이 황석석 2는 황석석 II가 우세한 경향이 있다. 황석석-섬아연석 지질온도계를 이용하면 생성 온도는 $280{\sim}350^{\circ}C$ 이며 유황의 분압은 $10^{-11}{\sim}10^{-8}$ atm.으로 추정된다. In the zinc-lead (-silver) ores from the Yeonhwa 1 mine, stannite is widespread, though minor in amount It may be divided largely into two species on the basis of its chronological order during mineralization; i.e., stannite I formed in Stage I, and stannite II formed in Stage II. Also, the mineral may be classified into two types according to the difference of its associates; i.e., stannite 1 closely associated with sphalerite, and stannite 2 with galena. In general, the stannite 1 tends to predominate in the stannite I and the stannite 2 in the stannite II. The formation temperature and sulphur fugacity of stannite 1 deduced from stannite-sphalerite geothermometry are from 280 to $350^{\circ}C$ and from $10^{-11}$ to $10^{-8}$ atm.
박자비 ( Ja Be Park ),정재일 ( Jae Il Chung ),윤진원 ( Jin Won Yoon ),설명도 ( Myung Do Seol ),원동준 ( Dong Jun Won ),조혜제 ( Hye Jae Cho ),이재진 ( Je Jin Lee ) 대한내과학회 2013 대한내과학회지 Vol.84 No.6
Esophageal neuroendocrine carcinomas are very rare and have a poor prognosis. In addition, the optimum treatment has not been established due to the rarity of the condition. An accurate differential diagnosis is important because treatments and clinical courses differ from those of esophageal squamous cell carcinomas. We report a case of a 61-year-old female who underwent endoscopy for dysphagia and was diagnosed with a neuroendocrine carcinoma of the esophagus, which was successfully resected by esophagectomy. (Korean J Med 2013;84:827-830)