• Title/Summary/Keyword: Geological

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The Well Distribution and The Geological Structure in Hot Spring Areas (온천지구내의 온천공 분포와 지질구조)

  • Lee, Chol-Woo
    • 한국신재생에너지학회:학술대회논문집
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    • 2009.06a
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    • pp.565-568
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    • 2009
  • Most of the historic hot springs are artesian wells in Korea. However, many boreholes have been drilled due to the shortage of hot water, and hot water is now being pumped by submersible pump installed at most of hot spring areas. The distribution of boreholes are expected to be related to the geological structure, and the study was carried out to interpret the relationship between two factors. The distributional maps of boreholes were made and the geological structures were interpreted at eight hot spring areas. Some distributions of boreholes have no special direction, and these are not related to the geological structure at Dogo, Suanbo, and Deoksan. The others are consistent with the direction of the geological structure at Goseong, Onyang, Sokcho, Yuseong, and Bugok.

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Development of Geological Field Courses and Its Application Method for Elementary School Students (초등학교 야외 지질학습현장 개발 및 활용방안)

  • 배창호;김정길;김해경
    • Journal of Korean Elementary Science Education
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    • v.21 no.2
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    • pp.241-252
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    • 2002
  • Field learning have not well performed in elementary school for various reasons, in spite of the benefits of field study. Absence of suitable geological field courses for elementary science education is one of several reasons The purpose of this study is to develop learning materials for the field geology in Hampyeong region and apply them to the geological related units for elementary science education. The 5 observation sites for the field geology learning in study area include various rocks and geological structure such as granite, gneiss, conglomerate, sandstone, mudstone, plant fossil, fold, fault and weathering phenomenon changing rocks to soil. This study area is suitable place for the field geology learning of elementary science education in Kwangju and Chonnam province because of convenience access, fresh outcrops and distribution of various geological learning materials as rocks and structure.

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Urban geology of Tabriz City: Environmental and geological constraints

  • Azarafza, Mohammad;Ghazifard, Akbar
    • Advances in environmental research
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    • v.5 no.2
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    • pp.95-108
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    • 2016
  • Urban geology is the study of urban geologic environments to provide a scientific basis for rational land use planning and urban development and provides information on geologic environments as a basis for city planners. Based on AEG recommendations, urban geological studies covered the urbanism and historical backgrounds, geological setting, engineering geological constraints and environmental assessments of understudied cities. The aim of this study is to provide a good view of urban geology of Tabriz city the capital of East Azerbaijan province in Iran. The topics of discussions about Tabriz city urban geology are included geologic (geomorphology, geology, climatology and hydrogeology), engineering geological (earthquake, landslide and geotechnical hazards investigations) and environmental characteristics (air, soil and water hazards assessment).The results of the urban geologic studies indicated that Tabriz city in terms of engineering geological and environmental constraints is at high risk potential and in terms of seismic activity and landslide instability is highly potential. In terms of air, soil and water pollution there are many important environmental concern in this city.

An Approach to Improve Romanian Geological Repository Planning

  • Andrei, Veronica;Prisecaru, Ilie
    • Nuclear Engineering and Technology
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    • v.48 no.2
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    • pp.495-504
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    • 2016
  • International standards recommend typical phases to be included within any national program for the development of a geological repository dedicated to disposal of the high level radioactive wastes generated in countries using nuclear power. However, these are not universally applicable and the content of each of these phases may need to be adapted for each national situation and regulatory and institutional framework. Several national geological repository programs have faced failures in schedules and have revised their programs to consider an adapted phased management approach. The authors have observed that in the case of those countries in the early phases of a geological repository program where boundary conditions have not been fully defined, international recommendations for handling delays/failures in the national program might not immediately help. This paper considers a case study of the influences of the national context risks on the current planning schedule of the Romanian national geological repository. It proposes an optimum solution for an integrated response to any significant adverse impact arising from these risks, enabling sustainable program planning.

PGA estimates for deep soils atop deep geological sediments -An example of Osijek, Croatia

  • Bulajic, Borko D.;Hadzima-Nyarko, Marijana;Pavic, Gordana
    • Geomechanics and Engineering
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    • v.30 no.3
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    • pp.233-246
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    • 2022
  • In this study, the city of Osijek is used as a case study area for low to medium seismicity regions with deep soil over deep geological deposits to determine horizontal PGA values. For this reason, we propose new regional attenuation equations for PGA that can simultaneously capture the effects of deep geology and local soil conditions. A micro-zoning map for the city of Osijek is constructed using the derived empirical scaling equations and compared to all prior seismic hazard estimates for the same area. The findings suggest that the deep soil atop deep geological sediments results in PGA values that are only 6 percent larger than those reported at rock soil sites atop geological rocks. Given the rarity of ground motion records for deep soils atop deep geological layers around the world, we believe this case study is a start toward defining more reliable PGA estimates for similar areas.

Analysis of Reservoir Vulnerability Based on Geological Structure Around Pohang Earthquake (포항지진 발생 주변지역 지질특성에 따른 저수지 취약성 해석)

  • Lim, Sung Keun;Song, Sung-Ho;Yu, Jaehyung
    • Journal of the Earthquake Engineering Society of Korea
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    • v.22 no.3
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    • pp.169-174
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    • 2018
  • A total of 594 reservoirs (17%), which are managed by KRC, equipped with earthquake-resistant facilities whereas remaining ones did not. In addition, reservoirs were placed without the effect of geological structures (i.e., fault and lineament). Therefore, development on technique for alleviating the potential hazards by natural disasters along faults and lineaments has required. In addition, an effective reinforcement guideline related to the geological vulnerabilities around reservoirs has required. The final goal of this study is to suggest the effective maintenance for the safety of earth fill dams. A radius 2 km, based on the center of the reservoir in the study area was set as the range of vulnerability impacts of each reservoir. Seismic design, precise safety diagnosis, seismic influence and geological structure were analyzed for the influence range of each reservoir. To classify the vulnerability of geological disasters according to the fault distribution around the reservoir, evaluation index of seismic performance, precise safety diagnosis, seismic influence and geological structure were also developed for each reservoir, which were a component of the vulnerability assessment of geological disasters. As a result, the reservoir with the highest vulnerability to geological disasters in the pilot district was analyzed as Kidong reservoir with an evaluation index of 0.364. Within the radius of 100km from the epicenter of the Pohang earthquake, the number of agricultural infrastructure facilities subject to urgent inspections were 1,180 including reservoirs, pumping stations and intakes. Four reservoirs were directly damaged by earthquake among 724 agricultural reservoirs. As a result of the precise inspection and electrical resistivity survey of the reservoir after the earthquake, it was reported that cracks on the crest of reservoirs were not a cause of concern. However, we are constantly monitoring the safety of agricultural facilities by Pohang aftershocks.

A Study on Trust and Distrust on Science and Technology: Focusing on Geological Resource Technology (과학기술에 대한 신뢰 및 불신 연구: 지질자원기술을 중심으로)

  • Kim, Chan-Souk;Lee, Hyunseon
    • Economic and Environmental Geology
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    • v.52 no.6
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    • pp.605-616
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    • 2019
  • The purpose of this study is to measure the trust and distrust perception of our society about science and technology. In addition to examining trust and distrust in science and technology, we also looked at trust and distrust in geoscience technology. In addition, by comparing the levels of trust and distrust in science and technology and geological resource technology, the implications for improving the reliability of geological resource technology are drawn. This study surveyed male and female office workers over 20 years of age working in the Seoul metropolitan area on the trust and distrust of science and technology. The results of this study show that respondents showed above-average trust in science and technology and geological resource technology. According to the gender or age of respondents, there was no difference in trust and distrust of science and technology and geological resource technology. As a result of examining the difference between trust and distrust in science and technology and geological resource technology, respondents showed higher trust scores in science and technology than geological resource technology. These results suggest that current communications activities on geological resources should be more active and diversified.

Geological Values of Seonangbawi Area as A Geological Field Course Site (야외지질학습장으로써 서낭바위 일대의 지질학적 가치)

  • Kil, Youngwoo;Choi, Don Won;Cong, Nguyen The;Jung, Woochul;Jo, Yunsoo;Jung, Yeojin
    • Journal of the Korean earth science society
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    • v.39 no.2
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    • pp.164-177
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    • 2018
  • Even though various geological attractions are distributed domestically, the geological attractions are rarely utilized as field course site. The purpose of this study is to make Seonangbawi area as the field course site after geological investigations are carried out in detail. Seonangbawi is located about 1km southeast from Songjiho beach in Gangwon-do. Seonangbawi area is simply composed of Cretaceous Seokcho granite with the overlay of Quaternary alluvium. Geological field course in the Seonangbawi area will be useful to the student and citizen for developing the knowledge of geological phenomena, such as the formation of granite and minerals, and weathering process. In addition, the student and citizen can develop the knowledge of the geological structures, such as joint (N50E/80NW, N40W/84SW), fault (N42W/83SW), foliation (N32E/54SE), and dyke (N35E/40SE, N26W/63SW), and geographical features, such as tor, taforni, groove, and gnamma in the field. Accordingly, the Seonangbawi area is the best place to learn various geological and geographical phenomena and to discuss the origin of Seonangbawi with limited space.

Geological origin and Structural characteristics of Faults (단층의 지질학적 성인과 구조지질학적 특성)

  • Yoon, Woon-Sang;Rim, Hyoung-Gyu;Jeong, Ui-Jin
    • Proceedings of the Korean Geotechical Society Conference
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    • 2007.09a
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    • pp.138-146
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    • 2007
  • The 'Fault' has been common interests to the structural geologists, geotechnical engineers and civil engineers. The 'Fault' is very important factor to evaluate to the geotechnical stability. In this paper, geological origin and classification of faults with structural geological features are described. These geological characteristics of faults are useful to understand and detect of faults for engineering practice.

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