• Title/Summary/Keyword: 성암

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Geochemistry of the Country Rock of Eosangcheon Manganese Deposit (어상천망간광산 모암의 지구화학)

  • Lee, Jae Yeong;Hwang, Duk Hwan
    • Economic and Environmental Geology
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    • v.17 no.1
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    • pp.17-34
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    • 1984
  • The Ordovician limestone and dolomite was mineralized by the intrusion of quartz porphyry to form hydrothermal ore deposit along the fault shear zone, which trends $N30^{\circ}-40^{\circ}W$ dipping $60^{\circ}-70^{\circ}SW$. The primary manganese carbonates in the upper part of the deposit were oxidized to form supergene manganese ore deposits. The quartz porphyry is plotted mainly in granite region of the triangular diagram of normative composition. The granite phase contains more copper and lead, but less zinc, nickel and chromium than the granodiorite phase which occupies the northwestern part of the quartz porphyry. The content of copper, lead, zinc, nickel and chromium in the quartz porphyry is lower compared with the granitic rocks from the copper province in the Gyeongsang basin. But the granitic rocks from the lead-zinc province has lower content of copper and nickel than the quartz porphyry. The primary distribution pattern of trace elements in the country rock of limestone and dolomite has close relation with the hydrothermal mineralization, showing anomalous or high content near the fault shear zone. The secondary distribution pattern of trace elements in soils shows close relation with the solubility of the carbonates of the elements under weathering condition.

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Two Cases of Adenoid Cystic Carcinoma of the Left Main Bronchus and Trachea (좌측 주기관지 및 기관에 발생한 선양낭포성암 2례)

  • Cho, Young-Bog;Lee, Hak-Jun;Kim, Ki-Beom;Jung, Jin-Hong;Lee, Kwan-Ho;Lee, Hyun-Woo;Kim, Mi-Jin
    • Journal of Yeungnam Medical Science
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    • v.13 no.2
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    • pp.347-359
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    • 1996
  • Adenoid cystic carcinoma is an uncommon histologic variant of adenocarcinoma which usually arises from the salivary, lacrimal, or other exocrine glands. Characteristics of adenoid cystic carcinoma are its potential for extending long distance submucosally and for perineural invasion. It grows slowly and may have a prolonged course before diagnosis and after treatment. Recently, we have experienced 2 cases of adenoid cystic carcinoma arising from main bronchus and trachea. One case was 58 years old female patient. Her symptoms were productive cough with dyspnea. She has been history of shortness of breath, wheezing and cough during 4 years, which was initially diagnosed as bronchial asthma. The tumor was located on the left main stem bronchus which was obstructed the lumen nearly complete, by CT demonstration. Tissue diagnosis was confirmed as adenoid cystic carcinoma by bronchoscopic biopsy. The patient underwent radiation to relieve a bronchial stenosis caused by her tumor. The patient has remained well and is asymptomatic without evidence of clinical recurrence. The other case was 25 year old female. She complained shortness of breath and inspiratory difficulty during sleep. The tumor was located in upper trachea, which protruded from the posterior wall of the trachea and obstructed the lumen nearly complete, by CT demonstration. Tissue diagnosis was confirmed as adenocystic carcinoma by rigid bronchoscopic biopsy. The patient was underwent operation for removal of the mass and received radiotherapy. The patient has remained well are following up now.

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A Study on Iron Compounds of Volcanic Rock in the Seaside Area of Ulleung Island (울릉도 해안지역 화산암의 철 화합물에 관한 연구)

  • Yoon, In-Seop;Kim, Sun-Bae;Kim, Hyung-Sang
    • Journal of the Korean Magnetics Society
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    • v.20 no.3
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    • pp.114-119
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    • 2010
  • Fe compounds of volcanic rock samples distributed in the seaside area of Ulleung island were investigated by means of X-ray diffractometry (XRD), X-ray fluorescence spectroscopy (XRF) and M$\ddot{o}$ssbauer spectroscopy. We found that samples were typical basic rock which had the total amount of iron compounds including hematite ($\alpha-Fe_2O_3$) varies from 10.6 w% to 14.5 w% depending on the different regions by XRF. The M$\ddot{o}$ssbauer spectra of the samples were consisted of one sextet due to hemitite and doublets due to $Fe^{3+}$ in various clay mineral and $Fe^{2+}$ in pyroxene $(Ca,Fe,Mg)_2(SiO_4)_2$, ilmenite ($FeTiO_3$) and olivine $(Mg,Fe)_2SiO_4$. The balance state of Fe ions of all samples was chiefly $Fe^{3+}$, so we could find that the volcanic rocks distributed in the seaside area of Ulleung island were made in inland.

Utilization of Obosan (Dietary Herbs) II. Muscle Quality of Olive Flounder, Paralichthys olivaceus Fed with Diet Containing Obosan (한방사료 첨가제인 어보산의 효과 II. 어보산 첨가사료로 사육한 넙치의 육질에 대한 연구)

  • 이경희;이영순;김종현;김동수
    • Journal of Aquaculture
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    • v.11 no.3
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    • pp.319-325
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    • 1998
  • Quality evaluation of fish muscle was conducted in olive flounder, Paralichthys olivaceus fed with control or experimental diet containing 0.3% of Obosan (Sungam Co., Korea). Sensory panel members preferred the experimental fish were more preferable than those of control (P<0.01 or 0.05). The difference test was shown that the experimental fish muscle is more firm elastic and palatable than the control ones (P<0.01 or 0.05). The physical properties of meats from fish fed a diet containing Obosan improved qualities with compared to those of control meats. The total amount of free amino acids in muscles from control fish (31.7 mg/100mg), especially with the significant increase of glutamic acid, proline, glycine, alanine and methionine. In all nucleotides and their related compounds, ATP was the most abundant in muscles from fish fed a diet containing Obosan (about 1.9 fold compared to mean of control), however, IMP was more abundant in control muscles.

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충주부근 활석 광상의 성인

  • 김형식;조동수
    • The Journal of the Petrological Society of Korea
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    • v.2 no.2
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    • pp.95-103
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    • 1993
  • The geology of the talc ore deposits in the Chungju area consists of the Kyemyeongsan Formation, the Munjuri Formation, the Daehyangsan Quartzite, the Hyangsanni Dolomite, and the basic rocks of the Ogcheon belt. The talc ore occurs in the Hyangsanni Dolomite near the Daehyangsan Quartzite The mineral assemblages in the Hyangsanni Dolomite are \circled1calcite-tremolite-talc-quartz, \circled2calcite-talc-quartz, \circled3tremolite-calcite-dolomite, and \circled4calcite-dolomite-phlogopite-chlorite. Talc has almost the ideal composition($X_{Mg}$=Mg/(Fe+Mg)=0.98). Talc was formed in siliceous dolomite by the medium-pressure type regional metamorphism. The evidences for contact metamorphism and/or hydrothermal reaction are not clear. The metamorphic grade of the Hyangsanni Dolomite and its adjacent pelitic or basic rocks near the deposits corresponds to epidote-amphibolite facies or greenschist facies based on the, mineral assemblages of \circled1hornblendebiotite-muscovite-epidote-quartz \circled2biotite-chlorite-quartz, and \circled3hornblende-actinolite-plagioclasequartz. The formation of the talc deposits were caused by the following reactions due to greenschist facies metamorphism of siliceous-dolomitic rocks in the Hyansanni Dolomite. (I) 3 dolomite+4 quartz+$H_2O$= talc+ 3 calcite +3 $CO_2$; (11) 3 tremolite+ 2 $H_2O$+ 6 $CO_2$= 5 talc+ 6 calcite + 4 quartz. The minimum temperature of the talc-tremolite-quartz assemblage is about $434^{\circ}C$ from calcite thermometry and the carbon dioxide mole fraction in metamorphic fulid($X_{$CO_2$}$) is about 0.1 at assumed pressure, 3 kbar.

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Geology of the Kualkulun in the Middle Kalimantan, Indonesia: II. Mineralogy and Geochemistry (인도네시아 중부 칼리만탄 쿠알라쿠룬 지역의 지질: II. 광물 및 지구화학)

  • Kim In-Joon;Lee Gyoo Ho;Cho Deung-Lyong;Lee Seung-Ryeol;Lee Sa-Ro
    • Economic and Environmental Geology
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    • v.37 no.5
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    • pp.459-475
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    • 2004
  • The geology of the Kualakulun area in Middle Kalimantan, Indonesia comprises Permian to Carboniferous Pinoh Metamorphic Rocks and Cretaceous Sepauk Plutonics of the Sunda Shield, late Eocene Tanjung Formation, Oligocene Malasan Volcanics, Oligocene to early Miocene Sintang Intrusives and Quaternary alluvium. Sepauk Plutonic rocks are classified as the calc-alkaline series and the S-type granite. Sintang Intrusive rocks are basic-intermediate and intermediate rocks, and consists of basalt, basaltic andesite, basaltic trachyandesite and trachyandesite. The Malasan Volcanics are characterized by intermediate dacitic pyroclasticl and minor lavas and belong to the subalkaline (calc-alkaline and tholeiitic) series. The whole-rock K-Ar ages of the fine-grained biotite granites and medium-grained granitoids were determined to be 100.5-106.5 Ma and 91.9-102.6 Ma, respectively. The whole-rock K-Ar age of the diorite is 89.1 Ma. K-Ar ages of the Malasan Volcanics and Shintang intrusives show 31.5-36.8 Ma and 24.6-34.5 Ma, respectively, and correspond to the Tertiary time.

Diagnostic Utility of Pleural Fluid CEA and CYFRA 21-1 for Malignant Pleural Effusions (악성 흉막액에서 CEA와 CYFRA 21-1의 진단적 유용성)

  • Chung, Jae Ho;Choi, Jeong Eun;Park, Moo Suk;Hwang, Sang Yon;Moon, Jin Wook;Kim, Young Sam;Chang, Joon;Kim, Joo Hang;Kim, Sung Kyu;Kim, Se Kyu
    • Tuberculosis and Respiratory Diseases
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    • v.57 no.1
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    • pp.32-36
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    • 2004
  • Background : The purpose of this study was to evaluate the usefulness of the pleural fluid carcinoembryonic antigen (CEA) and cytokeratin fragment 19 (CYFRA 21-1) tumor markers as complementary tools for the diagnosis of malignant pleural effusions. Patients and Methods : The levels of pleural and serum CEA and CYFRA 21-1 were prospectively assayed in 222 patients with pleural effusions (150 benign effusions, 57 bronchogenic carcinomas and 15 metastatic carcinomas). Results : The levels of pleural fluid CEA and CYFRA 21-1 in the malignant effusions were significantly higher than those in the benign effusions. With a specificity of 95%, the cut off values for the CEA and CYFRA 21-1 in pleural effusions were 5 and 89 ng/ml, respectively. The diagnostic sensitivities of the pleural fluid CEA and CYFRA 21-1 in malignant effusions were 72 and 54%, respectively, whereas using a combination of the two, the sensitivity increased to 87% (p<0.05). Conclusions : These findings suggest that a combination of the pleural fluid CEA and CYFRA 21-1 in pleural effusions can be useful in the diagnosis of malignant pleural effusions.

Petrochemistry of the Peridotites within an Andong Ultramafic Complex and Characteristics of Asbestos Occurrences (안동 초염기성암 복합체 내 페리도타이트의 암석지화학과 석면 산출 특성)

  • Song, Suckhwan
    • Journal of the Mineralogical Society of Korea
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    • v.32 no.1
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    • pp.15-39
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    • 2019
  • An ultramafic complex occurs as an isolated lenticular body in the Andong area. The Andong ultramafic complex comprises ultramafic and mafic rocks, but mainly peridotites. The complex extends for several kilometer to ENE direction, adjacent to the Andong fault line. This study is for petrochemistry of the peridotites within the ultramafic complex and characteristics of asbestos occurrences. The peridotites are igneous origin, ranging from lherzolite to wehrlites and are characterized by high Fo olivine ($Fo_{0.85-0.87}$), Mg clinopyroxene ($Mg_{87.5-93.5}$), and tremolitic to tschermakitic hornblende. Geochemically, these rocks show high magnesium number (mainly Mg = 85.3-87.38) and transitional element and low alkali element contents. The peridotites host asbestos, including chrysotile, tremolite and actinolite asbestos, but dominated by amphibole asbestos. The amphibole asbestos are found along small fault face, and cleavage and fracture showing several cm to ten cm in width as slip and oblique fibers, while the chryostiles occur at cleavage and vein showing several mm-cm in width as cross and slip fibers. They are confirmed by PLM, XRD and SEM results. Overall characteristics of peridotites from the Andong ultramafic complex and occurrences of the asbestos are similar to those of worldwide orogenic related Alpine type ultramafic rocks and serpentinized ultramafic bodies in Chungnam, Korea, respectively.

Analysis of Geological Structure of Volcanic Rock Mass in Ulleung-do using Variations of Magnetic Anomaly (자력탐사 자기이상 분석을 활용한 울릉도 화산암체 지질구조 특성 해석)

  • Kim, Ki-Beom;Kim, Man-Il
    • The Journal of Engineering Geology
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    • v.28 no.4
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    • pp.619-630
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    • 2018
  • The purpose of this study is to investigate the existence of faults and intrusive rocks in the volcanic rock mass of Ulleung-do using magnetic anomalies. The magnetic survey data show that basaltic (mafic) rocks have high magnetic anomalies and that trachytic (felsic) rocks have low magnetic anomalies, implying that the anomaly distributions can be used to distinguish between different volcanic rock types that may be covered by regolith (such as alluvial and colluvial deposits) and other sedimentary layers. Our results show that basaltic rocks are not present within the Nari caldera. However, outside the caldera, the occurrence of high magnetic anomaly values of >$1,000{\gamma}$ is presumed to reflect the existence of basaltic craters or volcanic vents that formed prior to the eruption of the trachytic rocks. In particular, the area with anomaly values of >$1,000{\gamma}$ in the vicinity of Namyang-ri, southwest of Ulleung-do, is interpreted as having a high probability of hosting a crater and vent originating from mafic volcanism.

On the Fundamental Issue of Ho-Rak Controversy (호락논쟁(湖洛論爭)의 핵심 쟁점 : 심(心)과 기질(氣質)의 관계 문제)

  • Lee, Sangik
    • The Journal of Korean Philosophical History
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    • no.35
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    • pp.7-42
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    • 2012
  • The Ho-Rak controversy is an internal dispute in the Kiho School. Both Ho and Rak adopt the theories of Yulgok(栗谷) as their common standard of right arguments. The controversy continues almost two hundred years after the dispute between LEE Gan(李柬) and HAN Wonjin(韓元震). However, it does not develop rich theoretical resources. The fundamental issue of Ho-Rak controversy is how to define the relation of mind(心) and temper(氣質). Ho School regard temper as material of the mind, and so they insist that mind and temper are ultimately the same. But Rak School regard temper as desire of the body, and so they insist that mind and temper are the another one. The viewpoint of Rak School does not correspond to the view of the traditional Neo-confucianism. So we should understand that mind and temper are ultimately the same. However if we define that mind and temper are the same, and they act at the same time, then we can not insure the foundation of pure goodness in human mind. LEE Chulyoung(李喆榮) defines that mind and temper are ultimately the same, but they act alternately. It is the exact definition about the relation of mind and temper.