• Journal of the Korean earth science society
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• v.32 no.1
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• pp.113-123
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• 2011

The effective teaching of Earth Science in the classroom should be augmented by field studies of rocks and minerals in a competently designed school rock garden(SRG). The displayed specimens must be correctly identified, labeled and esthetically evaluated. SRG is more than a general garden with just landscaping and it should provide students with freedom of conducting independent inquiries. The composition of the selected specimens should be representative of the bedrocks of region as well as of Korea in general. There are 130 schools in Jeonju-city and 35 (26.9%) have established rock gardens. There is a pressing demand for more gardens and number of display samples in school. The existing displays need improvement because some samples are not correctly identified and labeled. In addition, there is a duplication of rock types as well as lack of important rock types. The number and composition of the displayed rocks and minerals should be related to the school curriculum and reflect representative bedrocks of Jeonju-city and region.

• The Journal of the Petrological Society of Korea
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• v.11 no.1
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• pp.54-61
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• 2002

한국암석학회에서 발간하는 암석학회지에 지난 10년간 수록된 논문들이 여러 학술지에 얼마나 인용되고 있는지에 대한 통계조사를 실시하였다 대상학술지는 암석학회지 자체를 비롯하여 SCI 등재 국제학술지, 그리고 관련된 분야에서 국내의 대표적 학술지라고 생각할 수 있는 지질학회지, Geosciences Journal, 자원환경지질, 지구과학회지를 대상으로 하였다. 결과를 보면 지난 10년간 암석학회지에 수록된 논문의 수는 논평과 단보를 포함하여 총152편이며 가장 많은 논문을 게재한 저자는 김형식으로 21편의 논문을 게재하였다 암석학회지 논문의 피인용 회수는 총370회로 암석학회지에 가장 많은 158회 인용되었으며. SCI 학술지에는 46회 인용된 것으로 조사되었고, 다른 국내 학국지 중에서는 지질학회지에 72회로 가장 많이 인용되었다 가장 많은 피인용 빈도를 보인 논문은 Liu(1993)로 총 27회이고, 가장 많은 피인용 회수를 보인 저자는 권성택으로 81회이다. 다른 국내학술지들의 피인용 통계자료가 없어 직접적인 비교를 하기는 어렵지만 관련 분야의 학술지 중에서는 피인용 정도가 정상급 수준이라고 판단된다. 그러나 아직 여러 기준으로 볼 때 수준급인 국제학술지와는 차이가 있으며 더욱 개선되어야 할 것으로 생각한다.

• The Journal of the Petrological Society of Korea
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• v.13 no.1
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• pp.16-33
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• 2004

By relating mineralogy, petrology and geochemistry to observed magnetic properties, an understanding of the geological factors that control magnetic signatures is obtained. Magnetic susceptibility measurements and geochemical analyses were carried out for 160 samples in the Jurassic to Cretaceous granitoids, which is distributed to Pocheon, Jipori, Geumsan, Namwon, Songnisan, Yongdam, Masan, Jindong, and Taebaeksan areas. The magnetic properties of igneous infusion in these granites reflect bulk rock composition, reduction-oxidation state, hydrothermal alteration which are controlled by tectonic setting, composition and history of the source region, depth of emplacement and nature of wall rocks.

• 한국신재생에너지학회:학술대회논문집
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• 2007.11a
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• pp.493-496
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• 2007

본 연구에서는 국내 암석을 암종별로 총 292개 채취하였으며 열물성 측정 장비를 이용하여 이들 암석의 열물성을 측정하였다. 이와 더불어 암석의 물리적 특성을 측정하였으며 일부 시료의 경우 XRD 정량분석을 실시하였다. 이들 결과를 이용하여 암석의 열물성 특성과 열물성에 영향을 주는 인자를 파악하였다. 암석의 열물성 측정 결과 열전도도와 열확산계수는 화강암에서 가장 낮은 값을 보였으며 퇴적암, 변성암 순으로 나타났다. 또한 암종별 열물성 값의 범위를 살펴보면 변성암과 퇴적암에서 넓게 분포한다. 암석의 물성과 열물성과의 상관성 분석 결과 공극률이 증가함에 따라 열전도도와 열확산계수가 감소하나 상관성은 미약한 것으로 나타났다. XRD 분석 결과 암석의 열전도도는 석영($SiO_2$)의 함량에 따른 선형의 비례관계를 보였다. 이로써 암석의 열전도도는 암석을 이루는 광물의 종류에 의하여 영향을 받음을 알 수 있다. 차후 암석의 구성 광물입자의 배열 상태에 따른 열물성 특성과 퇴적암 및 변성암 시료에 대한 이방성 실험을 통해 편리, 층리 및 엽리 등에 따른 열물생의 이방성 정도를 분석할 예정이다.

• KSCE Journal of Civil and Environmental Engineering Research
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• v.32 no.6C
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• pp.275-284
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• 2012

The Antarctic continent exposed to strong wind, very low temperature, and extremely dry condition. The freezing-thawing cycles under this extreme environment change the mechanical characteristics of rocks near the ground surface. To investigate the effect of freezing-thawing cycles under the extreme environment understand on geotechnical properties of rocks, rocks from the Antarctica were collected from two places: (1) West Antarctic Cape Burks and (2) East Antarctic Terra Nova Bay areas. The rock characteristics of these two areas were described and compared. For Terra Nova Bay area, rock characteristics of rocks near the surface and depths exceeding 2.9 m were examined. The 'near-the-surface rocks' averages of absorption rate, P-wave velocity, and unconfined compressive strength were 0.56%, 3,717 m/s, and 109MPa, respectively; while, those values of 'deep-sited rocks' were 0.24%, 4,670 m/s, and 88MPa. From the measurements, it was found that the effects of weathering were not significant on mechanical characteristics (strength) but were pronounced on physical characteristics(absorption and P-wave velocity).

• Proceedings of the Petrological Society of Korea Conference
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• 2000.05a
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• pp.16-16
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• 2000

• Tunnel and Underground Space
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• v.27 no.1
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• pp.26-38
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• 2017

In this study, bedding rock permeability was measured using Berea sandstones with three different beddings. The fracture permeability was also measured using tight sandstone with two different fracture regimes considering in-situ stress conditions. The Berea sandstone with vertical, horizontal and non-bedding was used to analyze evolution of permeability upon in-situ stress conditions. In order to describe applied effective stress around rock in underground, the triaxial pressure cell & hydrostatic pressure cell was designed and permeability experiments were performed with controlled axial and confining pressures. The measurement of permeability was conducted by increasing and decreasing effective stress. The permeability of non-bedding rock sample is the most sensitive to applied stress conditions and fracture permeability of tight sandstone increases with fracture treatment with proppant.

• Proceedings of the Speleological Society Conference
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• 1994.11a
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• pp.80-81
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• 1994

카르스트는 특이한 수문학적 용식지형이며, 암석의 높은 용식성으로 인해 발달된 암석의 공극(1차적 삼투)과 암석의 구조적 변형인 절리면, 균렬면, 단층면, 층리면 등(2차적 삼투)의 확장으로 인하여 발생되어진 경관을 총칭한 것이다. 암석의 용식성만으로 카르스트가 형성된다는 것을 실명하기는 쉽지가 않다. 왜냐면 암석의 구조적인 특성이 중요한 인자가 되기 때문이다.(중략)

• Proceedings of the Speleological Society Conference
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• 1996.09a
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• pp.77-78
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• 1996

카르스트는 특이한 수문학적 용식지형이며, 암석의 높은 용식성으로 인해 발달된 암석의 공극(1차적 삼투)과 암석의 구조적 변형인 절리면, 균열면, 단층면, 층리면 등(2차적 삼투)의 확장으로 인하여 발생되어진 경관을 총칭한 것이다. 암석의 용식성만으로 카르스트가 형성된다는 것을 설명하기는 쉽지 않다. 왜냐하면 암석의 구조적인 특성이 중요한 인자이기 때문이다.(중략)

• Korean Journal of Mineralogy and Petrology
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• v.35 no.3
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• pp.299-311
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• 2022

Rocks exposed to the surface are subject to long-term weathering, and such effects weaken their engineering stability. Especially as weathering progresses, the surface of rocks will be changed by weathering, and such surface changes will affect the engineering safety of the rock mass. In addition, the chemical species produced in the weathered rock have a direct effect on the surrounding environment or on the structure. In areas where rocks are exposed, such as mining areas, chemical species produced by weathering can have a serious impact on the surrounding natural environment. In this study, accelerated weathering experiments using freeze/thaw system were conducted on rocks that had already been weathered and fresh rocks, and surface changes of each rock were observed with confocal laser scanning microscope (CLSM), and chemical species were analyzed using IC/ICP-MS. As the weathering progressed, the surface roughness decreased, and the amount of chemical species produced increased. The results of this study can be used as basic data for evaluating engineering/environmental safety in areas where rocks are exposed.