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REFERENCE LINKING PLATFORM OF KOREA S&T JOURNALS
> Journal Vol & Issue
Economic and Environmental Geology
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Journal DOI :
The Korean Society of Economic and Environmental Geology
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Volume & Issues
Volume 47, Issue 6 - Dec 2014
Volume 47, Issue 5 - Oct 2014
Volume 47, Issue 4 - Aug 2014
Volume 47, Issue 3 - Jun 2014
Volume 47, Issue 2 - Apr 2014
Volume 47, Issue 1 - Feb 2014
Selecting the target year
Economic Loss Estimation of Mt. Baekdu Eruption Scenarios
Yu, Soonyoung ; Lee, Yun-Jung ; Yoon, Seong-Min ; Choi, Ki-Hong ;
Economic and Environmental Geology, volume 47, issue 3, 2014, Pages 205~217
DOI : 10.9719/EEG.2014.47.3.205
As Mt. Backdu is expected to erupt, the social and economic impacts of the eruption on the Korean peninsula as well as on the world become a research topic of interest. If the volcano erupts, South Korea can be directly impacted by volcanic ash, which will bring out secondary damages in various ways. Given that the direct damage is a basis to estimate indirect and secondary damages, this paper was to review a method to estimate direct damages, called catastrophe risk models, and estimate the direct damages of available eruption scenarios of Mt. Baekdu. Based on the results, the damages by volcanic ash will occur mostly around Gangwon province if the Mt. Backdu erupts. Thus the inventory lists and their damage functions of Gangwon provinces were collected. In particular agricultural and forestry products were surveyed based on the land use. Direct damages were estimated using volcanic ash distribution of eruption scenarios, inventory information and their damage functions. In result, a scenario in winter caused the damage of 299.8 billion KRW (20.4% of total agricultural production in 2010) and 28.9 billion KRW (9.0% of total forestry production in 2010) in agriculture and forestry, respectively. The damages in agriculture was larger, and it is due to the damage functions which show the agricultural products are more vulnerable to volcanic ash than forestry products. Also the agricultural production (1,471.7 billion KRW in 2010) are more than 4.5 times the forestry production (322.3 billion KRW in 2010) in Gangwon province. Inje and Gangnung had the most damages in the scenario in winter. Inje had the most damage due to the thick ash deposit (8.5 mm in average) despite the low production. On the other hand, Goseong had a low damage compared to the ash thickness larger than 20mm, owing to the low production. The direct damage estimated through this process can be used to estimate indirect damages.
A Cost-Benefit Analysis of Groundwater: Pumping Wells in Korea
Kim, Sun Geun ;
Economic and Environmental Geology, volume 47, issue 3, 2014, Pages 219~225
DOI : 10.9719/EEG.2014.47.3.219
In Korea, there are 1,474 thousand pumping wells nationwide which account for about 12% of total water use in 2012. As much as 39 hundred million tons of groundwater were used while 333 hundred million tons of total water were supplied in 2012. Because the water management authority projects that water demand will exceed supply by 2021, the authority is planning to extensively expand groundwater use in accordance with economic feasibility. Using the basic frameworks of cost-benefit analyses of the World Bank and the US Environmental Protection Agency (US EPA), the objective of this study is to examine the costs and benefits of the expansion of Korea`s groundwater extraction through pumping wells. We conclude that the BC ratio of the groundwater pumping wells is 2.98. This signifies that the benefits are 2.98 times higher than the costs. The benefits include use and non-use values of pumping wells while the costs include the installation and maintenance of new wells, in addition to the restoration and pollution costs of abandoned wells, as well as fees for water quality tests, etc.
Qualitative Analysis of Research Papers of KIGAM World Class Laboratories (WCL) Candidates
Ahn, Eun-Young ;
Economic and Environmental Geology, volume 47, issue 3, 2014, Pages 227~235
DOI : 10.9719/EEG.2014.47.3.227
For technology level assessment of KIGAM World Class Laboratories (WCL) candidates, bibliometric and qualitative analysis was conducted on their research papers listed on the SCIE database during 2009-2012. For the six research areas of geoscience and mineral resources, a research excellence indicator was applied using a Modified Rank Normalized Impact Factor (mrnIF), which was introduced by Heo et al. (2008) and Cho (2013). The KIGAM research department in rare metals utilization had the highest score for Impact Factor (IF) per paper in 2012 but the groundwater department or the exploration geophysics department came first based on the position and the mrnIF. Applying the mrnIF, the KIGAM research department in groundwater achieved excellent results in 2009 and 2011 and the urban mine department or exploration geophysics department came first place in other years. In the groundwater area, the percentage of research papers over 80 or 90 mrnIF, using Cho (2013)`s research excellence index, was the highest in 2011. The Cho (2013)`s excellent research indicator, 20%, the ratio of over 90 mrnIF was matched in the urban mining area for the whole research period, 2009-2012, and in the groundwater area for several years except 2010. Qualitative analysis of research papers can show the technology level of research departments. KIGAM World Class Laboratories (WCL) candidates should focus on increasing the quality and the quantity of their research papers.
A Study on Estimation of Economic Effects on Mining Products Import Substitution Using Macroeconometric Input-Output Model
Kim, Ji-Whan ; Lee, Kyung-Han ; Kim, Yoon Kyung ;
Economic and Environmental Geology, volume 47, issue 3, 2014, Pages 237~246
DOI : 10.9719/EEG.2014.47.3.237
In this study, it is estimated how many changes of macroeconomic variables are happened under the proposition of import substitution of mining products 1% using macroeconometric input-output model. For this, used macroeconometric input-output model is composed of 141 behavioral equations representing the macroeconomy structure. In general, macroeconometrics models are constructed mainly on the side of the expenditure then it is not easy to estimate the effects of the shocks occurred from industry level. To mitigate that, this study tries to construct a macroeconometric input-output model. Macroeconometrics model which is useful to estimate the effects of macroeconomic shocks, economic policy and more, in this study, is linked with input-output table through the NDI(national disposable income) derived from compensation of employee. And this paper presents the estimation results of import substitution effects of mining products on Korean economy. As a results, GDP is increased 0.00073%, gross labor employed 0.00029%, current balanace 0.00010% and unemployment rate is mitigated 0.00233%.
The Analysis for the Effect of Effective Compressibility on Oil Recovery in Polymer Flooded Heterogeneous Reservoir
Baek, Soohyun ; Jung, Woodong ; Sung, Wonmo ; Seo, Junwoo ;
Economic and Environmental Geology, volume 47, issue 3, 2014, Pages 247~254
DOI : 10.9719/EEG.2014.47.3.247
The compressibility of fracture in naturally fractured reservoir is larger than the compressibility of matrix in rock, although the compressibility of a typical rock is very small. The effective compressibility including the fracture compressibility should be considered to predict oil recovery correctly. It is hard to quantify changes of fracture aperture and pore volume in reservoir without the effective compressibility. In this study, oil recovery is analyzed by commercial simulator concerning the fracture compressibility based on fracture properties. We found that the effective compressibility affects oil recovery with change of polymer flooding factors such as polymer molar weight, concentration and injection rate. The estimated cumulative oil production is smaller with the effective compressibility than without it. Also, bottomhole pressure decreases rapidly without considering effective fracture compressibility.
Analysis on Conflict Minerals and Its U.S. Policy
Park, Sung-Won ; Kim, Seong-Yong ; Kim, You-Dong ;
Economic and Environmental Geology, volume 47, issue 3, 2014, Pages 255~263
DOI : 10.9719/EEG.2014.47.3.255
Conflict minerals refer to minerals mined in conditions of armed conflict, especially as in the eastern provinces of the Democratic Republic of the Congo. The common conflict minerals are cassiterite, wolframite, coltan(columbite-tantalite ore), and gold, which are mined and extracted from the Eastern Congo. These minerals are essentially used in the manufacture of a variety of devices, including consumer electronics. To end the violent conflict in the Democratic Republic of the Congo (DRC) and in surrounding countries, it is necessary to block the supply route of conflict minerals which has been partially financed by the exploitation and trade of conflict minerals. The Dodd-Frank Wall Street Reform and Consumer Protection Act, passed into law in July 2010 and it contains requirements that U.S. companies report to the Securities and Exchange Commission(SEC) on the origin of conflict minerals and show due diligence of OECD. The goal of the act is to cut direct and indirect funding of armed groups engaged in conflict.
Trend of the Unconventional Energy Resources
Cho, Jin Dong ; Kim, Jong Hyun ; Park, Kwan Soon ;
Economic and Environmental Geology, volume 47, issue 3, 2014, Pages 265~273
DOI : 10.9719/EEG.2014.47.3.265
Unconventional resources are natural resources which require greater than industry-standard levels of technology or investment to exploit the commercial development. The key point is that unconventional resources are lower quality fuel sources and are not as economically viable as crude oil and conventional gas. Over the past 100 years, Conventional oil and gas has been satisfied with the energy demands. But developing countries such as China and India, the introduction of the developed countries and the surge of energy due to the depletion of unconventional energy resources will be the limelight. According to be analyzed in the academic literature to unconventional gas and oil(2000~2012) by the program of `web of science`, the research activities 402 papers in unconventional gas and 1,581 papers in unconventional oil.
Onshore and Offshore Gas Hydrate Production Tests
Lee, Sung-Rock ; Kim, Se-Joon ;
Economic and Environmental Geology, volume 47, issue 3, 2014, Pages 275~289
DOI : 10.9719/EEG.2014.47.3.275
Recent scaled-up onshore and offshore field production tests revealed that the expectancy to produce gas from the gas hydrate deposits is gradually increasing, recognizing its potentials as one of the future energy resources. The total produced gas was approximately
by the hot water circulation method for 6 days` operation in Mallik 2002 project in Canada. In Mallik 2006-2008 project, the gas was successfully produced stably by the depressurization method for 6 days, up to
cumulatively. The depressurization method applied in the Mallik test was revealed as an effective way to produce gas from gas hydrates. The Alaska North Slope field trial in 2012 to inject mixed gas of
was successfully completed for the first time to produce maximum
per day. The remarkable achievement is that Japan has completed first offshore production test in the Eastern Nankai Trough, and produced approximately
of methane by the depressurization method for 6 days in March 2013. The technical challenges and uncertainties obtained from Nankai Trough production test give Korea more considerations in the aspects of well completion, reservoir formation and seafloor stability, sand control, flow assurance, and etc., due to the different geological environments and geomechnical properties in Ulleung Basin in Korea.
Analysis on Survey, Exploration and Development Policy and Technology of China : Focused on Shale Gas Resources
Lee, Jae-Wook ; Kim, Seong-Yong ; Ahn, Eun-Young ; Park, Jung-Kyu ;
Economic and Environmental Geology, volume 47, issue 3, 2014, Pages 291~302
DOI : 10.9719/EEG.2014.47.3.291
The Chinese government and its agencies were trying in order to solve the unstability of resource supply and demand. Ministry of Land and Resources of China(MLR) carried out a lot of national-level policy and planning for estimating the domestic mineral and energy resources potential and recoverable reserves, as the Chinese land and resources survey plan(1999~2010), the Chinese mineral resource survey and exploration plan(2008~2020), announcement for shale gas industry policies of China, the Chinese shale gas resources evaluation and selection project for its development priority areas(2012), and the plan for Chinese shale gas development(2011~2015). The two large sedimentary basins of Chinese shale gas reserves are Sichuan and Tarim basins with excellent potential, accounting for majority of the estimated national reserves. Recoverable gas-bearing shale of China was surveyed to be widespread. The volume of recoverable shale gas reservoirs in China has been estimated to be around 31 trillion cubic meters(1,115 trillion cubic feet). China is one of only three countries with the US and Canada to produce shale gas in commercial quantities. China is concentrating on technology development to enhance commercial production of shale gas, and on survey and exploration activities to increase its recoverable reserves. The trends related to shale gas development and R&D activities in China to respond to changes in international oil market should be actively monitored based on analysis of Chinese policies and technology.
Analysis on Research Projects and Trends of Mineral Resources Survey and Mineral Deposits : Focused on the Korea Institute of Geoscience and Mineral Resources
Kim, Seong-Yong ; Ahn, Eun-Young ; Park, Jung-Kyu ; Lee, Jae-Wook ;
Economic and Environmental Geology, volume 47, issue 3, 2014, Pages 303~316
DOI : 10.9719/EEG.2014.47.3.303
This study was carried out to raise research productivity through the analysis on the research projects and to find trends of mineral resources survey and mineral deposits of the KIGAM for 38 years since the fiscal year of 1976 to 2013. The KIGAM in the projects for mineral resources survey and mineral deposits expended 67.41 billion won for last 38 years, which is 107.07 billion won calculated using the present value in 2013 at discount rate of 5%. R&D expenditure in mineral resources survey and mineral deposits of KIGAM increased approximately 59.4 times from 108 million won in 1976 to 6,420 million won in 2013, and about 9.8 times from 657 million won in 1976, as calculated using the present value in 2013. The percentage of research projects in mineral resources survey by research sub-areas was as follows: survey, 32%(90 projects); origin of ore deposits and basic research, 19%(54 projects); exploration for ore deposits, 17%(48 projects); database and information, 13%(37 projects); mineralogy and ore analysis, 9%(25 projects); and etc., 10%(27 projects). Based on analysis of research trends over the last 38 years, to raise research productivity, the existing survey research techniques with repeated use and related technology development should be enhanced.