• Proceedings of the Korean Association of Geographic Inforamtion Studies Conference
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• 2010.06a
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• pp.105-109
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• 2010

전 세계적으로 육상자원의 고갈로 해양광물을 개발하고 이를 경제적으로 활용하려는 움직임이 점점 증가하고 있다. 이에 우리나라도 한반도 주변 해역의 해양광물자원을 확보하기 위한 탐사와 연구가 진행 중에 있다. 특히 우리나라는 삼면이 바다로 둘러싸인 지형학적 특정으로 주변국과의 자원경쟁이 불가피하여 전략적 체계적 탐사자료의 관리와 이를 활용하기 위한 방안이 필요하다. 하지만 탐사 분야가 다양하고 그에 따른 데이터가 상이하여 관리에 어려움이 있다. 현재 국내에서 해양자원에 대한 정밀탐사가 이루어지고 과학적인 정보제공이 요구됨에 따라 해양광물자원정보시스템이 구축 운영되고 있지만 몇 가지 제약점이 존재한다. 따라서 본 연구에서는 이를 보완하기 위해 특히 시추 퇴적물 탐사 분야에 있어 GIS기반의 표출 가능한 대상항목을 분류하였고, 데이터베이스 구축을 위한 모델링을 진행하였다. 이는 위치기반의 분석결과 자료를 제시할 수 있도록 하였다 본 연구는 해저 퇴적층에 분야의 과학적 정보 제공을 위한 기반을 마련하였다는데 의의가 있다. 또한, 한반도 주변에 해양광물자원의 부존 가능 지역을 파악하는데 있어 과학적 정보를 지원하고 나아가 광물자원의 매장량 추정이나 경제성 평가를 위한 정보제공의 기반이 될 것으로 사료된다. 향후 연구에서는 시추퇴적물의 깊이에 따른 데이터베이스 관리 방안과 더불어 3차원 정보 제공에 대한 연구와 모델링 결과를 통해 실제 데이터에이스 구축이 진행되어야 할 것이다.

• Spatial Information Research
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• v.19 no.6
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• pp.19-28
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• 2011

Recently, the interests of marine mineral resources has been increasing from the depletion of land resources around the world and many countries are involving in marine exploration work. South Korea is also currently performing exploration work to estimate the marine mineral resources around the Korean Peninsula. However, massive amounts of marine exploration data accumulated from the long-term exploration work have not been systematically managed. The data have been managed by the file based system instead of commercial database. The aim of this study is to construct GIS-based Marine Mineral Resource Information System using a spatial database for the core sediments of the marine exploration data. For constructing such DB system, GIS-based data items were classified, and a database was designed using relational database model. The database was constructed using commercial DBMS(Database Management System), Oracle. Also, necessary functions of the system were defined for the effective use of database based on users' requirement analysis. The GIS-based Marine Mineral Resource Information System has enabled to support the systematic management of the marine exploration data. Furthermore, it is expected that this spatial database will be useful in estimating the reserves of the mineral resources and provide valuable information for economic evaluation. In the future, the application of advanced techniques of spatial analysis and 3-dimensional display function will be required.

• The Microorganisms and Industry
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• v.18 no.1
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• pp.9-12
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• 1992

현대산업의 급속한 발전으로 에너지 또는 유용 광물자원의 고갈, 오염문제와 식량문제는 전지구적 차원에서 매우 심각해지고 있다. 지구표면의 대부분을 차지하고 있는 해양에는 풍부하고 다양한 생물자원과 광물자원이 아직도 대부분이 미개발 상태로 남아있다. 현재 전지구적 차원의 문제점을 해결하기 위해서 해양에 관한 연구개발은 세계 각국에서 활발하게 수행되고 있으며 최대의 관심사가 아닐 수 없다. 이와 같은 세계의 조류 속에서 일본 해양 생물공학 연구분야의 최근 움직임은 심상치가 않다. 따라서 일본의 최신 동향을 살펴보기 위해 본고에서는 일본 해양 생물공학 연구소와 해양과학기술센터에 관한 자료를 소개하고 우리의 대처방안에 대한 소견을 밝히고자 한다.

• Journal of the Korean Society of Marine Environment & Safety
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• v.12 no.2 s.25
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• pp.115-123
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• 2006

The policy regime of ocean is changed from ocean liberty paradigm to ocean management paradigm. Ocean resources have the characteristics of weak excludability and strong rivalry. Therefore, they need rational ocean management so as to curb the tragedy of commons. The important ocean issues and policy regimes today is ocean pollution, coastal management, sea-level rise, fishery, whaling, ocean jurisdictions, deep seabed resources, military security, piracy, ecological environmental security and so on. This paper aims at reviewing these major international ocean issues, the policy regimes for them, and the desirable tasks of ocean policy regimes in the future from the macro perspective of international ocean politics or policy-making.

• Economic and Environmental Geology
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• v.53 no.6
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• pp.781-792
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• 2020

Mine tailings, which are inevitably formed by the development of manganese nodules, manganese crusts, and hydrothermal seafloor deposits, have attracted attention because of their quantity and potential toxicity. However, there is a lack of data on the quantity of mine tailings being generated, their physicochemical properties, and their effects as environmental hazards and on marine ecosystems in general. The importance of treating mine tailings in an environmentally friendly manner has been recognized recently and related reduction/treatment methods are being considered. In the case of deep-sea mineral resource development, if mine tailings cannot be treated aboard a ship, the issue becomes one of the cost of transporting them to land and solving the problem of environmental pollution there. Therefore, the Korea Institute of Ocean Science and Technology conducted research on the harmfulness of mine tailings, their effect on marine ecosystem, the diffusion model of contaminated particles, and candidate purification treatment technologies based on five representative controlling factors: 1) effects of pollution /on the environment, 2) effects of environmental/ biological hazards, 3) diffusion of particles, 4) mineral dressings, and 5) reducing/processing mine tailings. The results of this study can provide a basis for minimizing environmental problems by providing scientific evidences of the environmental effects of mine tailings. In addition, it is also expected that these results could be applied to the treatment of pollutants of different origins and at land-based mining waste sites.

• Resources Recycling
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• v.22 no.6
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• pp.73-80
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• 2013

Marine mineral resources are classified into submarine and seawater mineral resources. In seawater, huge amounts of useful minerals, such as uranium, lithium, magnesium, aluminum, zinc, iron, silver, copper, vanadium, nickel, titanium and cobalt are present. If the rare metals recovery technology from seawater is developed, the commercialization of the precess will be possible. For the 21st century, countries rich in resoures tend to weaponize the resources, according to the depletion of reserves and quality degradation of metal resources in the land. Therefore, Korea that relies on imports for most of the metal resources, should focus on the research and development of the rare metals recovery technology from seawater by using the geographical characteristics of the country that is on three sea-sides.

• The Sea:JOURNAL OF THE KOREAN SOCIETY OF OCEANOGRAPHY
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• v.13 no.3
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• pp.165-167
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• 2008

• 한국해양학회지
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• v.22 no.3
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• pp.168-178
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• 1987

A study on the mineralogy and internal features have been carried out on a sample of ferromanganese crust from a Central Pacific seamout. The distribution of manganese mineral vernadite($\delta$-MnO$\sub$2/)in the different layers indicates typical hydrogenous origin under a continuous change of growth conditions during crustal firmation. Various internal structures are discerned within the crust which may be attributed to different growth conditions. The growth structure changes and the distinct break in the formation of the crust at about 2 depth are assumed to be the results of Miocene to mid-Pleistocene global palaeoceanographic events.

• The Science & Technology
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• v.17 no.3 s.178
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• pp.37-41
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• 1984

• Economic and Environmental Geology
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• v.56 no.6
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• pp.765-779
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• 2023

The Daum Vent Field (DVF) was newly discovered in the Central Indian Ridge during the hydrothermal expedition by the Korea Institute of Ocean Science & Technology (KIOST) in 2021. In this paper, we describe the detailed mineralogy and geochemistry of hydrothermal chimney and mound to understand the nature of hydrothermal mineralization in the DVF. The mineral assemblages (pyrite±sphalerite±chalcopyrite) of dominant sulfides, FeS contents (mostly <20 mole %) of sphalerite, and (Cu+Zn)/Fe values (0.001-0.22) of bulk compositions indicate that the DVF has an strong affinity with basaltic-hosted seafloor massive sulfide (SMS) deposit along the oceanic ridge. Combined with the predominance of colloform and/or dendritic-textured pyrite and relatively Fe-poor sphalerite in chimneys, the fluid-temperature dependency of trace element systematics (Co, Mn, and Tl) between chimney and mound indicates that the formation of mound was controlled by relatively reducing and high-temperature fluids compared to chimney. The δ³⁴S values (+8.31 to +10.52‰) of pyrite reflect that sulfur and metals were mainly leached from the associated basement rocks (50.6-61.3%) with a contribution from reduced seawater sulfur (38.7-49.4%). This suggests that the fluid-rock interaction, with little effect of magmatic volatile influx, is an important metal source for the sulfide mineralization in the DVF.