• Title/Summary/Keyword: geological exploration

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A Study on Advanced Geoscientific Research Activities Related to the Korean Peninsula by Foreign Geologists Prior to 1945 (해방이전 외국인에 의한 서구식 한반도 지질광상조사 성과고찰연구)

  • Kim, Seong-Yong;Lee, Jae-Wook
    • Economic and Environmental Geology
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    • v.48 no.1
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    • pp.77-88
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    • 2015
  • Advanced geological surveys and exploration activities were first carried out in Korea in 1884 in accordance with a treaty of friendship and commerce between Great Britain and Korea and a treaty of friendship and commerce between Germany and Korea. The first paper by Gottsche, C. was also published in a German Journal in 1886. Efforts toward independent acquisition of Western geological survey and exploration technology were actively promoted by the Korean Empire in the early 1900s, but were frustrated by the Japanese Empire. Systematic geological surveys and exploration were conducted in Korea by Japanese geologists during the Japanese occupation. A basic geological maps(61sheets), a bulletin on the geological survey of Korea, a bulletin and technical report on deposits in Korea, and a coalfield geological survey report were published during this period. Overall, the intentions under lying the geological surveys and exploration activities by foreigners in Korea prior to the Japanese occupation were questionable. However, the results of these surveys and explorations themselves can be evaluated as positive in terms of academic performance.

Development and Application of Large-diameter Cut-hole Exploration System for Assessment of the Geological Condition beyond NATM Tunnel Face (NATM 터널의 굴착면 전방 지질 평가를 위한 대구경 심발공 탐사 시스템 개발 및 적용 사례)

  • Kim, Minseong;Jung, Jinhyeok;Lee, Jekyum;Park, Minsun;Bak, Jeonghyeon;Lee, Sean Seungwon
    • Tunnel and Underground Space
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    • v.31 no.1
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    • pp.1-9
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    • 2021
  • Recently, the development of underground space has been accelerated with rapid urbanization, and it is significantly important for safe construction to accurately understand the geological conditions of the section when excavating rocks. In this paper, a boring alignment tracking and geological exploration system have been developed to identify the geological conditions beyond the excavation face by utilizing a MSP method that bores a large empty hole to reduce blast-induced vibration. The major advantage of the proposed exploration system is that we can obtain the ground condition of 50 m ahead of the excavation face through exploration along blast cut-holes drilled for the NATM tunnel construction. In addition, we introduce several case histories regarding the assessment of the geological conditions beyond the tunnel face by monitoring the inside of large empty holes using the proposed hole exploration system.

APPLICATION OF SIR-C DATA FOR EXPLORATION OF MINERALIZEDD ZONES (HWANGGANG-Rl, KOREA)

  • Jiang, Wei W.;Park, S.W.;Park, Jeong-Ho;Lee, Cahng-Won;Kim, Duk-Jin;So, Byung-Han;So, C. S.;Moon, Wooil M.
    • Proceedings of the KSRS Conference
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    • 1999.11a
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    • pp.158-164
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    • 1999
  • This paper investigated and evaluated the NASA's Shuttle Imaging Radar-C (SIR-C) multiple frequency SAR data for differential backscattering effects of microwave from the surface geological materials overlying the skarn type mineralization. Although an integrated approach in mineral exploration is more cost effective and is well in use, there are still many technical and scientific issues to be further investigated and researched. In this study we have reprocessed several sets of previously surveyed exploration data and experimented with fuzzy logic digital fusion of the preprocessed data with respect to chosen exploration targets. Among the numerous fuzzy logic operators, which are currently available for a data driven integrated exploration strategy, we used varying combinations of fuzzy MIN, fuzzy MAX, and fuzzy SUM operators along with Gamma operator for fusion of exploration data, including the contact metamorphic zone information. The final exploration target tested was a skarn type W-Mo-F mineralization in the study area. The fuzzy logic derived mineral potential anomaly almost exactly matched the differential backscattering anomalies on the C-band and L-band SIR_C data when overlaid on each other. Although this high degree of correlation between these two data sets is remarkable, the differential backscattering anomaly over the skarn type W-Mo-F mineralization in the study area requires further investigation.

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Mineral Resources Potential Mapping using GIS-based Data Integration

  • Lee Hong-Jin;Chi Kwang-Hoon;Park Maeng-Eon
    • Proceedings of the KSRS Conference
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    • 2004.10a
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    • pp.662-663
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    • 2004
  • In general, mineral resources prospect is performed in several methods including geological survey, geological structure analysis, geochemical exploration, airborne geophysical exploration and remote sensing, but data collected through these methods are usually not integrated for analysis but used separately. Therefore we compared various data integration techniques and generated final mineral resources potentiality map.

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Analysis of the Latest Trends in Mineral Resource Exploration and Mining in China and its Implications (중국의 광물자원 탐사개발 최신동향 분석 및 시사점)

  • Kim, Seong-Yong;Heo, Chul-Ho
    • Korean Journal of Mineralogy and Petrology
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    • v.35 no.1
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    • pp.75-81
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    • 2022
  • Given that China's resource research, exploration and development and resource economy policies are closely related to Korea's industrial competitiveness in the field of global mineral energy resources, it is important to establish the domestic and overseas resource development strategies. In 2020, China will revise and set standards for mineral resources to ensure efficiency in exploration and development and storage management. China's Ministry of Natural Resources has established the National Mineral Resources Plan (2021-2025), aiming to achieve national goals and strategies, and local governments at all levels are also establishing and implementing regional mineral resources plans. As a result, the supervision and management of geological mineral exploration activities have been strengthened, and the safety of industrial production management in the field of geological mineral exploration and development has been strengthened. China has developed guidelines for high-quality geological exploration, surveying and mapping, improved the level of geological mineral exploration and strengthened the mining supervision and management system. According to China's standardization of mineral resources such as solid mineral resources and petroleum gas mineral resources, a new standard system for resource management will be established in China to improve scientific understanding, rational management and utilization.

A Study on the Effect of Elementary Pre-service Teachers on Conceptual Acquisition and Perception Change of Strata and Rocks after Geological Exploration (초등예비교사들의 지질답사를 통한 지층과 암석 개념습득 및 인식변화에 대한 연구)

  • Yong-seob Lee
    • Journal of the Korean Society of Earth Science Education
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    • v.16 no.3
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    • pp.319-327
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    • 2023
  • This study involved 22 students in one class of 4th year science intensive course at B College of Education. We investigated the changes in the acquisition of knowledge in the field of geology and the perception of geological exploration among pre-service teachers. For this study, a period of four weeks was designated for a semester to a geological field trip. For the geological exploration, the Geoparks of City B (Geumjeongsan Mountain, Amnam Park, Igidae, Dusong Peninsula, Jangsan, Taejongdae, and Hwangnyeongsan Mountain) were designated. The concept of geology and rocks has been extracted from the concepts that can be found in the Geopark. The composition of the group was composed of one group of four members autonomously. The other two of the pre-service teachers joined a group of friends with whom they had an affinity. After the geological field trip, the materials were organized by group and PPT presentations were made during the lecture time where all the members could listen. The extent to which the pre-service teachers acquired the concepts of geology and rocks after conducting the geological field trip was interpreted as the result of pre- and post-statistical processing. In addition, we interpreted what kind of perception the pre-service teachers had after the geological field trip as a result of the statistical processing before and after. Based on the results of the study, the following conclusions were drawn: First, it was effective for the pre-service teachers to acquire the concepts of strata and rocks after the geological field trip. The reason for this is that the experience of the pre-service teachers in conducting geological field trips has changed their perception of geological field trips. In addition, it is interpreted that these results were obtained because the pre-service teachers had a high level of interest in geology and rocks. Second, the pre-service teachers were able to gain confidence after the geological field trip. This reason is interpreted as the fact that they were able to gain confidence in geological exploration by exploring and experiencing the sites of the Geopark for each group.