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최헌수 ( Hun Soo Choi ),공기수 ( Gee Soo Kong ),김지훈 ( Ji Hoon Kim ),엄인권 ( In Kwon Um ) 한국광물학회 2011 광물과 암석 (J.Miner.Soc.Korea) Vol.24 No.3
북동태평양 우리나라 광구 KR5지역의 해저퇴적물 퇴적연대와 퇴적환경의 변화를 살펴보고자, 상자형 코아 시료에 대해 심도에 따른 Be 동위원소 분석을 실시하였다. 분석 코아 시료(BC08-02-13)는 상부에서부터 FaciesⅠ, FaciesⅡ, FaciesⅢ 세 개의 암상으로 구분된다. FaciesⅠ은 갈색/암갈색을 띠는 (10YR4/3) 균질한 머드로 높은 함수량을 보이는 것이 특징적이다. FaciesⅡ는 갈황색을 띠고 10YR6/6), FaciesⅠ과는 부정합적인 관계를 보이며, FaciesⅢ는 암갈색을 띠는 머드층이다. FaciesⅡ과 FaciesⅢ에는 생교란작용에 의한 서관구조가 발달되어 있다. Be 연대측정 결과에 의하면 BC08-02-13 코아의 FaciesⅢ 는 3.7 Ma 이전에 퇴적되었으며, FaciesⅡ는 2.3 Ma 이전에 퇴적되었고, 그 후 환경변화에 의해 FaciesⅡ 상부가 침식을 받은 후 약 1.8 Ma 이후 현재까지 FaciesⅠ이 퇴적되었다. FaciesⅠ과 FaciesⅡ 경계의 부정합은 적도수렴대의 이동에 의한 환경변화에 의한 것으로 보인다. In order to investigate absolute age of marine sediment in the KR5 region, northeastern Pacific, we measured the Be isotope (10Be and 9Be) of box core (BC08-02-13) sediment with depth. Core sediment is divided into three sedimentary facies (FaciesⅠ, FaciesⅡ, FaciesⅢ). FaciesⅠ mainly consists of brown to dark brown (10YR4/3) homogeneous mud with high water content. FaciesⅡ shows brownish yellow (10YR6/6) color. The unconformity is recognized at the boundary between FaciesⅠ and FaciesⅡ, FaciesⅢ consists of very dark brown (10YR2/2) mud. Many bioturbated burrows are observed at FaciesⅡ and FaciesⅢ. Based on Be dating results, FaciesⅢ and FaciesⅡ had been deposited before 3.7 Ma and 2.3 Ma, respectively. After 2.3 Ma, the upper part of FaciesⅡ was eroded due to the change of sedimenary environment. FaciesⅠ has been deposited since 1.8 Ma. The unconformity located at the boundary between FaciesⅠ and FaciesⅡ may be driven by the envrionmental change due to the migration of Intertropical Convergence Zone.
KODOS 망간단괴의 SiO<sub>2</sub>-CaO-MnO 상관관계와 분포양상
장세원,최헌수,강중석,공기수,이성록,장정해,Chang, Se-Won,Choi, Hun-Soo,Kang, Jung-Seok,Kong, Gee-Soo,Lee, Sung-Rock,Chang, Jeong-Hae 한국해양과학기술원 2004 Ocean and Polar Research Vol.26 No.2
$SiO_2$ and CaO are added to decrease the smelting temperature in the reduction-smelting method for manganese nodule processing. These elements are components of the manganese nodules and might be very important controlling factors in the processing due to the locally variable content. The 707 chemical data of manganese nodules acquired from 1994 to 2001 in KODOS(Korea Deep Ocean Survey) area were used for the hierarchical cluster analysis. The chemical data were classified by the morphological types, and the averages of the chemical data for each station were classified by the facies groups and the localities. All data are plotted on the $SiO_2-CaO-MnO$ phase diagram at $1773^{\circ}K$ to compare with the best compositional area in the nodule smelting. Variations and distributions of $SiO_2$ and CaO in KODOS nodules were also reviewed. The mineral phases assigned by the cluster analysis are CFA(Carbonate Fluorapatite), Fe-oxide, Al-silicate, and Mn-oxide. MnO contents are generally higher than $SiO_2$ contents in most of the morphological types except for the Is- and It-type. The Dt- and Tt-type show wider range and the E-types show high anomaly in their CaO contents. The stations which belong to facies group A and B show generally higher MnO contents than $SiO_2$ contents, however, the stations of facies group C and D show wide range in their MnO and $SiO_2$ contents. It seems to be very important to control the $SiO_2$ contents in the processing because of the wide range in the northern area. The additions of approximately 10 wt.% CaO and 10 wt.% $SiO_2$ are recommended for the northern area, whereas, the additions of approximately 10 wt.% CaO and 20 wt.% $SiO_2$ are recommended for the southern area.
배재근(Chae-gun Phae),주흥수(Hung-soo Joo),박정수(Jung-soo Park),최헌수(Heon-su Choi),장기훈(Ki-hun Jang) 유기성자원학회 2000 유기물자원화 Vol.8 No.4
본 연구는 일반 단독주택 등의 가정에서 쉽게 사용할 수 있는 최상의 발효토를 도출하고자 직접 음식물쓰레 기 소멸실힘을 행하였다. 실험 결과 반응기 내 미생물의 활성에 의해 음식물쓰레기를 투입한 직후의 초기에 비해 다 음 음식물쓰레기 투입직전인 9 일 후의 온도,무게,함수율, vs의 값이 감소하였고,모든 반응기에서 소멸화는 진 행되었다 그 중에서도 S대 미생물제재를 발효토로 사용한 반응기인 F, 4 번 반응기가 가장 좋은 결과를 보였으며, 음식물의 투입주기를 단축하는 것이 가능하였다. 반응이 양호하지 않은 반응기는 시간이 지날수록 그 무게와 수분이 증가하여 장기간 반응 시 악영향을 미칠 것으로 판단된다 염분은 시간이 지날수록 소멸되지 않고 축적되었다. 성능이 우수했던 S 대 발효토를 이용한 적용가온도에 크게 영향을 받았다. 그러나 반응기간은 S대 미생물을 고정한 발효토를 이용한 반응기를 200 C에서 유지하였을 때 3 일 정도로 처리기간을 단축 시킬수 있었다. This study was performed to determine the best fiεrmentation soil in vanishing composting of individual residence garbage. At the result, temperature, weight, warer content, volatile solid were reduced gradually by reaction of microorganism in the reactors after food was inserted for 9 days. The vanishing possibiliry was observed in all reactors. The best reactor was F and 4 mat seeded microorganisms which were provided at S Universiry. In addition it was possible to shorten cycle of putting in food waste. Inactivated reactors were be bad because of increased water content for long reaction time. Sodium chloride was accumulated and not vanished as time passed. But reactor was not insulated, the activities of microorganism in the reactor were affected highly by cold weamer(about less than 12 C). When rhe srudy was exrended ro fllld our rhe feasibiliry of applicarion, rhe rerention time could be shortened ro 3 days form 9 days, when rhe microorganism reactor rhar used the fermentarion soil seeded microorganisms which were provided at S Universiry was maintained about 20 oC.