• 한국지구물리탐사학회:학술대회논문집
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• 2003.11a
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• pp.470-475
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• 2003

KIGAM (Korea Institute of Geoscience and Mineral Resources) launched a new project to develop the low-enthalpy geothermal water in the area showing high geothermal anomaly, north of Pohang city, for large-scale space heating from KORP (Korea Research Council of Public Science & Technology) funding. Surface geologic and geophysical surveys including Landsat TM image analysis, gravity, magnetic, Magnetotelluric (MT) and controlled-source audio-frequency MT (CSAMT) and self-potential (SP) methods have been conducted and the possible fracture zone was found that would serve as deeply connected geothermal water conduit. By the end of 2003, two test wells of 1 km depth will be drilled and various kinds of borehole survey along with additional MT measurements and sample analysis will follow and then the detailed subsurface condition is to be characterized. Next step would be drilling the production well of 2 km depth and all further steps remain to be determined depending upon the results of the test well studies.

• Journal of the Mineralogical Society of Korea
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• v.25 no.3
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• pp.175-184
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• 2012

콩고민주공화국은 아프리카의 중앙에 위치하며, 기반암인 화강암계열의 암석들은 주로 북쪽과 북동쪽에 위치한다. 신원생대부터 중생대까지의 퇴적암들은 주로 콩고분지와 카루분지에 연관하여 발달하며, 중생대에서 현생시기까지의 퇴적암, 퇴적물들은 주로 콩고의 서부와 중앙부에 발달한다. 콩고민주공화국에 발달하는 대부분의 광상은 화강암계열의 관입암과 연관되어 나타나며, 키바라이드대, 루필리안호, 열곡대 등의 영향으로 주로 남쪽과 동쪽에 밀집된다. 남쪽과 동쪽을 포함하여 콩고민주공화국 내에는 다이아몬드, 금, 코발트, 구리, 아연 등 수많은 고부가가치 지하자원 및 카보너타이트와 연관된 희토류 광물들이 풍부하게 부존되어 있다. 콩고민주공화국의 자원개발은 대규모의 국영기업, 국영민간 합작기업, 민간기업, 소규모의 영세채광업자에 의해 이루어지고 있는데, 외국계 광업회사들은 대부분 국영기업들과 제휴 협정을 맺고 자원개발에 참여 중이며, 낙후된 광업 부문 발전 도모를 위해 카빌라 대통령은 관련 법령의 제정 및 개정, 정부간섭 최소화 등 투자촉진 정책을 시행하고 있어 향후 콩고의 광물생산이 크게 증가할 전망이다. 따라서 전략적으로 접근한다면 자원 확보가 유리한 지역으로 판단된다.

• Journal of the Mineralogical Society of Korea
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• v.24 no.1
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• pp.55-62
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• 2011

• Economic and Environmental Geology
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• v.38 no.2 s.171
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• pp.197-206
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• 2005

North Korea is plentiful in the mineral resources as magnesite, gold, zinc, iron, rare metal, and coal resources compared to South Korea and has 6 industrial zones which are located nearby to the mineralized areas. The industrial zones are provided with a sound infrastructures and accumulation of advanced technology. As a huge mineral and energy consuming country, South Korea imports mineral and coal resources equivalent to almost 8 trillion won annually. Inter-Korean cooperation for development of mineral resources in North Korea will be improved by the practical use of the North Korea's plentiful mineral resources, infiastructures related to development and refinement, and basic geo-technology, which would be considered toward combining with South Korean capital and Russian geo-technologies.

• Resources Recycling
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• v.30 no.5
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• pp.32-37
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• 2021

Thorium extraction and possible separation from monazite leaching solution was studied. Primary amine Primene JM-T was select ed for t horium ext ract ion processing. Various experiment s were t est ed and est ablished for t he t horium liquid -liquid extraction process. The screening of extractant, lower pH conditions, extractant variation and extraction isotherms construction, and finally, stripping studies were established.

• Resources Recycling
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• v.31 no.2
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• pp.12-19
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• 2022

The study was conducted to develop a vanadium recovery process using reduction pre-treatment in the Vanadium TitanoMagnetite (VTM) The sample for the research was provided by the Gwan-in Mine in Pocheon, Gyeonggi-do. The vanadium content of the sample is 0.54 V₂O₅% and vanadium is concentrated mainly in magnetite and ilmenite. Magnetic separation of the sample can increase vanadium content up to 1.10 V₂O₅%. To increase the vanadium content further, reduction pre-treatment was performed, which is a process of concentrating vanadium present in the iron by reducing iron in magnetite using carbon(C). Based on this reduction pre-treatment, the magnetic separation process was developed, which achieved a vanadium grade of 1.31V₂O₅% and 79.68% recovery. In addition, XRD analysis of the vanadium concentrate before and after reduction and the final vanadium concentrate was performed to confirm the behavior of vanadium by reduction pre-treatment.

• Resources Recycling
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• v.19 no.6
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• pp.70-76
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• 2010

It was to investigate the optimum leaching conditions for the NaOH hot digestion and hydrochloric acid leaching of Monazite. The optimum condition for NaOH hot digestion was that the concentration of NaOH/TREO mole ratio was 15, the temperature of decomposition $140^{\circ}C$, and reaction time 2 hrs. And the optimum condition for the hydrochloric acid leaching of NaOH hot digestion product was that the concentration of hydrochloric acid was 6N, leaching time 2 hrs and pulp density about 15%. The yield of rare earth oxide was above 90% on the above experimental condition.

• Economic and Environmental Geology
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• v.43 no.3
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• pp.279-281
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• 2010

• Economic and Environmental Geology
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• v.45 no.3
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• pp.347-350
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• 2012

• Proceedings of the Korean Quaternary Association Conference
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• 2007.06a
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• pp.17-17
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• 2007