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김지훈,Byoung-Woo Yum,김락현,고동찬,Tae-Jin Cheong,Jeongho Lee 한국지질과학협의회 2003 Geosciences Journal Vol.7 No.4
Park, Y.S., Kim, J.K. and Kim, J., 201, Petrochemistry of Granitoids322 Ji-Hoon Kim, Byoung-Wo Yum, Rak-Hyeon Kim, Dong-Chan Koh, Tae-Jin Cheong, Jeongho Lee and Ho-Wan Changin the Youngwang-Kimje area, Korea. Economic and Environ-mental Geology, 34, 55-70 (in Korean with English abstract).Price, B.N. and Calvert, S.E., 1977, The contrasting geochemicalbehaviors of iodine and bromine in resent sediments from theNambian Shelf. Geochimica et Cosmochimica Acta, 41, 1769-1775.Richter, B.C., Kreitler, C.W. and Bledsoe, B.E., 1993, Geochemicaltechniques of identifying sources for groundwater salinization.CRC Pres, New York, 285 p.Stumm, W. and Morgan, J.J., 196, Aquatic chemistry: chemicalequilibria and rates in natural waters. 3rd edn. Wiley, New York,1022 p.
Thermal Water Level Change and Geochemistry in the Suanbo Area, Korea
Yum, Byoung-Woo,Kim, Yongje Korean Society of Soil and Groundwater Environment 1999 지하수환경 Vol.6 No.2
이 논문에서는 1991년부터 관측한 수안보지역 온천수 대수층 수위변화와 양수량변화 및 온천수의 지구화학적 특성을 다루었다. 온천수의 수위변화와 양수량변화는 서로 밀접한 관련을 가지며. 양수량에 따른 수위의 피크는 약 5주의 지연효과를 보이며 영향을 받고 있다. 본 연구지역 온천 대수층은 환원환경이 지배하며. 온천수는 알칼리성 (pH=8.5∼8.7)이며, 총고용물량은 낮고(274∼284 mg/1), 나트륨성분은 높으며(68∼72 mg/1), 불소성분(6.4∼8.9 mg/1)과 중탄산성분(136∼146 mg/l)이 비교적 높으며. 나트륨-중탄산 타잎으로 분류된다. 아울러 온천수의 산소와 수소 동위원소 분석결과에 의하면 천수기원이다. 라돈-222와 라듐-226의 거동에 영향을 줄 수 있는 지구화학적 작용을 밝히기 위해 두 동위원소의 활동도를 측정하였다. 라돈 농도는 라듐의 농도보다 천내지 만배에 달한다. 라돈-222의 농도는 평균 2,522 pCi/L이고 190에서 7,490 pCi/L의 범위를 가진다. 또한 라듐-226은 평균농도가 0.32 pCi/L이고 0.25에서 0.42 pCi/L의 범위이다. 두 동위원소의 농도는 EC 및 알칼리도와 역비례하는 관계를 가지는 반면, 라듐-226은 pH와 양의 상관관계를 가진다. 라돈-222와 라듐-226은 거의 상관관계를 가지지 않는다. 조사지역의 온천수는 심하게 파쇄된 천매암층으로부터 양수되나, CSAMT 탐사와 지질조사결과. 그리고 온천수의 지구화학적 분석 결과에 의하면 천매암층은 다만 통로의 역할을 할 뿐, 주요 온천수 대수층은 화강암 저반내에 심부까지 발달한 정단층임을 추정할 수 있다. Both the groundwater changes due to different pumping rates and the geochemistry of thermal waters in the Suanbo area are considered in this study. The observation of groundwater level change since 1991 shows that the change is directly correlated with pumping rates of thermal waters and reveals the retardation of ca. 5 weeks after pumping. The hydrogeological aquifer in the area is under reducing condition. The thermal waters are of Na-HCO$_3$ type. and are alkaline (pH=8.5∼8.7) with low TDS values (274∼284 mg/l) and high concentrations of Na (68∼72 mg/l). F (6.4∼8.9 mg/l), and HCO$_3$(136∼146 mg/l). Oxygen and hydrogen isotope ratios of thermal water indicate a meteoric water origin. The activities of Rn-222 and Ra-226 in both thermal water and local groundwater were determined to delineate possible geochemical controls on the Rn-222 and Ra-226. The Rn-222 concentrations are several orders of magnitude greater than the Ra-226 concentrations. The concentrations of Rn-222 range from 190 to 7.490 pCi/1 with an average of 2,522 pCil/l. and those of Ra-226 average 0.32 pCi/1 with the range from 0.25 to 0.42 pCi/1. The concentrations of Rn-222 and Ra-226 are inversely correlated with EC and alkalinity. The pH it positively correlated with Ra-226. The correlation between Rn-222 and Ra-226 is poor. Thermal waters in the study area are produced from highly fractured phyllite. The thermal water qualify. CSAMT (controled-source audiofrequency magnetotelluric) prospecting, and petrological evidences, however, indicate that the heat is possibly transmitted through deep normal faults reaching a deep granite batholith, and the phyllite acts only as a groundwater pathway.
( Woo Kon Jeong ),( Myung Ho Jeong ),( Kye Hun Kim ),( Sang Rok Lee ),( Ok Young Park ),( Ju Hyup Yum ),( Joo Han Kim ),( Won Kim ),( Jae Young Rhew ),( Youn Keun Ahn ),( Jeong Gwan Cho ),( Byoung Hee 대한내과학회 2003 The Korean Journal of Internal Medicine Vol.18 No.3
Background: The current techniques for percutaneous coronary interventions (PCI) remain limited by restenosis. Recent studies have provided evidence of inflammation playing a role in the pathogenesis of cardiovascular disease. Methods: Whether inflammator
염병우,Yum, Byoung-Woo 한국지하수토양환경학회 2007 지하수토양환경 Vol.12 No.6
이 현장보고에서는 앞으로 10년간 수행될 USGS 연구정책의 방향과 USGS 수자원국의 지하수 분야의 테마, 생물국의 전략, 그리고 지하수 연구자들의 모델링 분야 보고서 표준화 노력에 대하여 다운사이징의 방법으로 소개하였다. USGS는 생태계와 생태계 변화에 중점을 둔 연구를 최우선 주제로 제시하였으며, 지하수 분야는 특히 이 정책 주제의 중심에 있다고 할 수 있다. 이 소개를 통하여 우리 연구자들의 현재를 돌아보고 앞으로의 계획에 도움을 줄 수 있기를 기대 하는 바이다. This report is providing recent USGS policy on various ground-water research themes, which bears on i) USGS future policy within next decade, ii) recent ground-water science research topics, and iii) publication policy on ground-water modeling publication. USGS, an outstanding leading organization in the world geological sciences, has been taking higher priority on ecosystems and its changes than any other themes. This report will be helpful for us to compare our present status and to prepare future plan.
古南山 含티탄磁鐵鑛床의 母岩인 알카리斑糲岩質岩의 岩石化學的 硏究
Ho Wan Chang(張浩完),Byoung Woo Yum(廉炳又),No Young Park(朴魯榮) 대한자원환경지질학회 1987 자원환경지질 Vol.20 No.2
The host rocks of titaniferous magnetite deposits in Gonamsan are alkaline gabbros, which are typical of undersaturated alkaline rocks in terms of the lack of normative quartz. According to field occurrences and petrographic features, these alkaline gabbros are divided into 3 rock types: coarse-grained and pegmatitic rock, medium-grained rock with equigranular texture, and layered cumulate rock. All these rocks mainly contain clinopyroxene(salite), plagioclase(An 43-66), pargasite, and ilmenite. The accessory minerals are apatite, sphene, quartz, and sometimes titaniferous magnetite. Pargasite, sphene, and quartz are considered to be secondary minerals formed by the reaction among clinopyroxene, plagioclase and Fe-Ti oxide at deuteric stage. Fe-Ti oxides generally occur as ilmenite in the alkaline rocks, and titaniferous magnetite in the ore deposits. Layered cumulate rocks are characterized by a recurrence of discontinuous thin mesolayer of clinopyroxene-pargasite within leucolayer mainly composed of plagioclase. Clinopyroxene is cumulus mineral whereas plagioclase, ilmenite and apatite occur as intercumulus minerals. According to the variation diagrams of oxide and trace element contents against the differentiation index, incompatible elements, such as Na, Ba and Sr, show positive correlations whereas compatible elements, such as Mg and Cr, show negative correlations. However some compatible elements, such as Co, Ni and V show irregular variations, reflecting relative cumulate status of cumulus and intercumulus minerals. On the de la Roche multicationic diagram, these alkaline gabbros are distributed along the differentiation curve of undersaturated alkaline series from alkaline basaltic composition through basanitic composition to tephritic composition. Layered cumulate rocks, which are distributed between basanitic composition and tephritic composition, reflect their cumulate character, slightly scattering away from the curve. The medium-grained rock shows higher contents in Ba, Sr and light rare earch elements than the coarse-grained and pegmatitic rock. The former shows two times higher contents of total rare earth elements than the latter, while(La/Lu)cn ratios maintain fairly constant values of 5.08~5.06 in these two rocks. This means that coarse-grained and pegmatitic rock, as compared with the medium-grained rock, was formed by the earlier differentiated magma but rare-earth element distribution pattern remained almost parallel during differentiation. From the data the above mentioned, these alkaline gabbros are considered to be comagmatic and to be formed by intrusions of differentiated magmas in its reservoir.