하천에 서식하는 민물고동 ( 다슬기 ) 의 Sr, Pb 동위원소 특성

전서령(Seo-Ryeong Jeon),정재일(Jae-il Chung) 대한자원환경지질학회 2005 자원환경지질 Vol.38 No.2

수중생물과 그 생물이 살았던 물과의 동위원소 조성은 크게 다르지 않으나,동위원소비는 동위원소와는 달리 생물과 그 생물이 살았던 물과 상이한 값을 보인다. 이 두 동위원소를 환경추적인자로 동시에 적용할 목적으로 담수에 사는 수중생물인 다슬기( Semisulcospira libertina) 껍질의 두 동위원소비를 측정하여 보았다. 하천수에 사는 다슬기 껍질의 동위원소비는 그들이 살았던 하천수의 동위원소비와는 같은 값을 보이지만, 채취지역에 따라서는 다른 값을 가진다. 하천수의 동위원소가 서로 다르기 때문으로 결국 하천수중의은 기반암으로부터 유래하고 다슬기 껍질의은 하천수에서 기인한 것으로 볼 수 있다. 반면에 동위원소비는 하천수와 다슬기 껍질이 서로 다른 값을 보이는 것은 하천수에 용해된 이 다슬기가 흡수 가능한과는 다른 것으로 생각되며, 다슬기 껍질의 Pb 동위원소비는 강우의 Pb Pb 동위원소비와 유사하다. 하천수에 용해된 Pb은 기반암에서 유래한 것이 아니라 토양 중에 집적된 대기기원의 Pb 이 대부분인 것으로 생각된다. The Sr/Sr ratios between water and biogenic material are similar in marine and lacustrine environment. Pb isotope ratios are, however, reported not to have been corresponding between the biological tissues and ambient water in aquatic system, contrary to the Sr isotope ratios. In order to explore the potential application of two isotopes as environmental tracers, we report here the isotopic compositions of strontium and lead of gastropod shell in fresh water in Jinan area. The Sr/ Sr ratios of carbonate shells of gastropod living in fresh stream water, are similar as that of ambient water but are different by sites. The different Sr/Sr ratios of stream water between the sites is likely caused by the difference of the isotopic composition of Sr derived form rocks in the basin. In contrast, there is a distinct difference of the lead isotopic values between the water and the gastropod shell, suggesting that shell-fish available lead in aquatic system is different from dissolved lead in water. It is assumed that the majority of Pb in stream water is derived from atmospheric Pb accumulated on soil materials over years rather than from rock.

Comparison of geochemical properties of the stream waters from costal (Buan-Gochang) and inland (Muju-Jinan-Jangsu) areas

전서령(Jeon Seo-Ryeong) 대한지질학회 2009 지질학회지 Vol.45 No.3

Geochemistry of major and minor elements in a soil profile formed by weathering of granite; an example from the two-mica granite in the Jinan area, Jeonbuk

전서령(Seo-Ryeong Jeon),이정후(Jung Hoo Lee) 대한지질학회 2002 지질학회지 Vol.38 No.3

Sr and Pb isotope geochemistry in a soil profile formed by weathering of granite; an example from the two-mica granite area in the Jinan-gun, Jeonbuk

전서령(Seo-Ryeong JEON) 대한지질학회 2004 지질학회지 Vol.40 No.4

Geochemical properties of the surface water from Imsil, Sunchang, and Namweon area

전서령(Jeon Seo-Ryeong),김대현(Kim Dae-Hyun),정재일(Chung Jae-il) 대한지질학회 2006 지질학회지 Vol.42 No.3

순창지역 농촌 지하수의 수리지화학적 특성 및 질산성질소오염원 추정

전서령(Jeon Seo-Ryeong),박수정(Park Soo-Jung),김형수(Kim Hyung Soo),정숙경(Jung Suk-Kyoung),이영엽(Lee Young Up),정재일(Chung Jae-il) 대한지질학회 2011 지질학회지 Vol.47 No.2

전주 , 군산 , 남원지역 강수의 Sr, Pb 동위원소 지화학

전서령(Jeon Seo-Ryeong),정재일(Chung Jae-il) 대한자원환경지질학회 2005 자원환경지질 Vol.38 No.4

전북의 전주, 군산, 남원지역에서 주기적으로 채수된 강수(bulk deposition) 를 지화학적으로 고찰하고 Sr 과 Pb 동위 원소의 환경추적인자로서의 적용 여부를 알아보고자 하였다. 강수는 pH 4~7 의 약산성내지 산성을 띄며, 건기에는 높고, 우기에는 자연산성도 수준인 5.0 수준을 유지한다. 강수에 의한 희석작용으로, 우기이후의 강수는 TDS 및 EC 도낮아지나 다시 건기에 들어서면서 상승한다. 겨울철에는 난방연료의 연소에 의해 SO 4 과 NO 3 이 높은 함량을 보이며, 여름철은 CO 2 가스의 영향으로 탄산농도가 약간 높은 경향을 보인다. 양이온은 겨울철에 Na 의 함량이 높고, 봄부터 여름철에는 Ca 의 함량이 높게 나타난다. 지리산에 인접한 남원이 전반적으로 낮은 EC 및 TDS 값을 가지고 인구밀집과 도시화가 심한 전주지역은 대체로 높다. 남원지방은 다량의 수목의 호흡작용에 의한 대기중 이사화탄소의 함량이 높아 여름철 탄산 농도가 타 지역에 비해 높다. 군산지역은 해염의 영향으로 대기중 Cl 의 함량이 높다. Al, Cu, Zn 은 TDS 와 상관계수 0.5 이상의 양호한 상관관계를 보여 이들 원소가 미량원소 중 강수의 화학적 성상에 영향을 미치는 원소들 이라고 볼 수 있다. Sr 값은 0.7109-0.7128 으로 세 지역 모두 유사하며, 해수보다 다소 높은 값을 보이고 있어 주변의 토양입자, 꽃가루, 기타 인위기원의 에어로졸 등의 영향이 있음을 암시하나 지역 전반에 걸친 자세한 동위원소적 고찰이 있어야만 보다 정확한 해석이 가능할 것으로 생각된다. 강수의 Pb 동위원소 조성도 세 지역 모두 유사하며, 서울 에어로졸의 Pb 동위원소 조성 범위내에 포함되고 북경의 에어로졸 범위에서는 약간 벗어나 있다. 이는 한반도내의 대기 중에 함유되어 있는 Pb 은 모두 유사한 기원으로 휘발유의 연소에서 발생하는 것으로 생각되며, 중국으로부터 기원한 Pb 의 존재 가능성은 내포하고 있으나 그 기여율은 적을 것으로 보인다. The Sr and Pb isotopic ratios and chemical composition were measured for atmospheric bulk deposition samples collected in the Jeonju, Gunsan and Namweon areas over a period of one year. Acidity of deposition ranged pH 4~7 with little higher in dry season, and around pH 5.0 in rainy season. The EC and TDS of rainy season was low showing dilution effect, and increased during dry season. Sulfate (SO 4 ) and NO 3 are atmospheric aerosols largely of anthropogenic origin in winter. Sodium was concentrated in winter deposition, Ca was concentrated in spring to summer deposition. Namweon has lower EC and TDS than those of other, and Jeonju has higher. Namweon was concentrated in HCO 3 and Gunsan was concentrated in Cl. Aluminium, Cu, and Zn show good correlation index with TDS, indicating of their origin atmospheric. Sr/ Sr ratios of bulk deposition ranged from 0.7109 to 0.7128. The isotopic variations are correlated with mixing of isotopic compositions of local soils, road deposit and biogenic aerosol. In order to constrain further the origin of aerosols in rainwater, it will be necessary to collect additional Sr isotopic data for aerosols. Lead isotope ratios for all areas were similar and belonged to Pb isotope ratios of Seoul s aerosols, but little different with Beijing s aerosols. It showing that Pb in the Korea mainly derived from the gasoline combustion, not exclusively from the Beijing.

동진 금·은·동 광산 주변에 방치된 폐석의 환경적 영향

이무성,전서령,나춘기,정재일,Lee, Mu-Seong,Jeon, Seo-Ryeong,Na, Choon-Ki,Chung, Jae-Il 대한자원환경지질학회 1996 자원환경지질 Vol.29 No.1

Although the Dongjin Au-Ag-Cu mine had been abandoned since about forty years ago, the results of this study on the dispersion patterns and contamination level of heavy metals in the hydrologic system flowing via the waste rump show that the environmental impacts from the mine wastes are still significant. The stream water in the vicinity of the waste rump is severely acidified (pH 3.8 to 4.4) and highly enriched in various dissolved heavy metals. The heavy metal contents of the stream water and stream sediments are systematically attenuated with increasing distance from the mine area. However, it is worth to note that continuous attenuation of heavy metal contents in both media were reenriched in downstream area more than 800 m apart from the mine because it can be acted as a secondary source of heavy metal pollution. The heavy metals, especially Cd, Cu and Zn of polluted downstream sediments mainly occur in Fe-Mn oxides and organic materials, which indicates that these elements are the main pollutants from the waste rump of the Dongjin mine. The heavy metal contents of crops, such as sesame, perilla, red Pepper and brown rice, collected from the polluted farm land in the downstream area are lower than those of land plants from stream sides, but significantly higher in Cd, Cr, Cu and Zn than those from the unpolluted farm land. Especially, almost all of the crops in polluted farm land have been severly contaminated by Cd (>0.4 ppm). On the other hand, the heavy metal contents of the crops collected from refreshed farm land by means of a soil addition method shows significantly lowered level comparing with those of polluted area, which indicates that a soil addition method was effective for the refreshment of polluted farm land by toxic metallic pollutants. Wormwoods from this area showed very high contents in a11 the heavy metals even in unpolluted area (Cd > 1 ppm, Cr > 1 ppm, Cu > 11 ppm, Pb> 4 ppm, Zn > 55 ppm), indicating that a special caution must be payed when one takes ingest them.

모악 금·은광산에 방치된 폐석이 주변 수계 및 생태계에 미치는 환경적 영향

나춘기,전서령,Na, Choon-Ki,Jeon, Seo-Ryeong 대한자원환경지질학회 1995 자원환경지질 Vol.28 No.3

The heavy metal contents and their dispersion patterns in stream water, stream sediments, land plants and aquatic larvae collected from the hydrologic system flowing via the wasted ore dump of the Moak Au-Ag mine were investigated systematically in order to evaluate the environmental impacts of the abandoned metal mine. The heavy metal content increases abruptly in the vicinity of the wasted ore dump, then attenuated with increasing distance from the mine area. Attenuating rates were stream water > stream sediments > land plants > aquatic larvae. On the other hand, the cumulative content of heavy metals was stream sediments >aquatic larvae > land plants > stream water. Each element tends to be enriched selectively according to media; Zn > Cu > Cd > Pb in stream water, Zn > Pb > Cu > Cd in stream sediments and land plants, and Zn > Cu > Pb > Cd in aquatic larvae. These results show that the degree of enrichment and dispersion of pollutant extruded from the wasted ore dump are different according to elements and media, and that the circulation system of materials of each medium is different. The heavy metals, especially Cu, Pb and Zn, of polluted downstream sediments occur in high proportions of Fe-Mn oxides and organic bounded forms, which show high potential of a secondary pollution source. The content of heavy metals and their dispersion patterns in stream sediments are different from those of ten years ago; pollution levels of heavy metals were degraded in various ranges. The Zn and Cu-polluted areas were widened whereas Fe and Pb-polluted areas were reduced. In crops collected from the farm lands in downstream area, the pepper was more concentrated in all heavy metal than rice. The pepper showed some contaminated level in Cu(9.7ppm) and Zn(149ppm), and the rice in Zn(90ppm). However, both crops showed no significant level in Cd(<0.2ppm) and Pb(<0.5ppm).

Studies on the Geology and Geochemistry in the Beonam Mine, Korea

정재일,나춘기,이영엽,전서령,김선영,Chung, Jae-Il,Na, Choon-Ki,Lee, Young-Up,Jeon, Seo-Ryeong,Kim, Seon-Young The Korean Society of Economic and Environmental G 1995 자원환경지질 Vol.28 No.6

번암광산은 소백산 육괴의 남서부에 위치하며, 소백산은 편마암 복합체를 $N20{\sim}30^{\circ}E$ 방향으로 관입하여 나타난다. 주변 화강암들은 변성화강암류의 재용융 혹은 부분용융에 의해 생성된 calc-alkaline계열의 마그마로부터 분화 생성된 산화물로 추정된다. 광상을 배태시킨 광화용액을 화강암체를 형성한 마그마로부터 유래하였다해도 시기적으로 훨씬 후기에 생성되었을 것이다. 공생광물군에 대한 연구결과 광화작용은 크게 3시기로 I기: 기저 유화광물의 생성시기, II기: 후기 유화광물, 엘렉트럼 및 함은 유영 광물의 생성시기, III기: 소량의 함은 광물, 백색석영 및 탄산염광물의 생성시기로 나눌 수 있다. 번암광산의 생성온도, 염농도 및 압력은 광물공생과 화학성분, 유체포유물, 유황동위원소 지질온도계를 이용하여 측정되었으며 다음과 같다. I기: $200{\sim}315^{\circ}C$. 3.5~6.5 NaCl eq. wt.%. 0,28~0.61 Kbar. II기: $150{\sim}235^{\circ}C$, 4.5~7.4 NaCl eq. wt.%. 0.11~0.15 Kbar로 나타난다. 초기 광화작용동안산소와 유황분압은 각각, $10^{-35.1}{\sim}10^{-39.7}$ atm., $10^{-11.0}{\sim}10^{-13.4}$atm. 으로 나타난다. 이와 같은 연구결과 번암광산은 polymetallic meso-epithermal type의 광상으로 생각된다. The Beonam deposits which is located in south-western part of Sobaeksan massif are emplaced along $N20{\sim}30^{\circ}E$ trending fissures in Precambrian Sobaeksan gneiss complex. Surrounding granites are inferred to be differentiated and formed from calc-alkaline magma which was generated from remelting or partial melting of the crustral material having igneous composition. The Sr isotope data of ore minerals showing significantly low initial Sr value relative to those of surrounding granite batholiths suggest that the ore-bearing fluid formed the Beonam Au-Ag mine are isotopically distinct from those of the wall rocks, and it indicates that there is no evidence of genetic relationship between ore-bearing fluids and surrounding granites, although further study should be needed. The results of paragenetic studies suggest three stages of hydrothermal mineralization; stage I: base-metal sulfides stage, stage II: late base-metal sulfides, electrum and silver-bearing sulfosalts stage, stage III: minor silverbearing minerals, barren quartz and carbonates stage. The temperature, salinity and pressure of the Beonam deposits estimated from mineral assemblage, chemical composition, fluid inclusion and sulfur isotope geothermometry are as follows; stage I: $200{\sim}315^{\circ}C$, 3.5~6.5 NaCl eq. wt%, 0.28~0.61 Kbar, stage II: $150{\sim}235^{\circ}C$, 4.5~7.4 NaCl eq. wt%, 0.11~0.15 Kbar. The estimated oxygen and sulfur fugacity during first stage mineralization, based on phase relation of associated minerals, range from $10^{35.1}{\sim}10^{-39.7}$ atm. and $10^{-11.0}{\sim}10^{-13.4}$ atm., respectively. All these evidences suggest that the Beonam deposits are polymetallic meso-epithermal ore deposits.