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REFERENCE LINKING PLATFORM OF KOREA S&T JOURNALS
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Journal of the Korean earth science society
Journal Basic Information
Journal DOI :
The Korean Earth Science Society
Editor in Chief :
Volume & Issues
Volume 28, Issue 7 - Dec 2007
Volume 28, Issue 6 - Oct 2007
Volume 28, Issue 5 - Sep 2007
Volume 28, Issue 4 - Aug 2007
Volume 28, Issue 3 - Jun 2007
Volume 28, Issue 2 - Apr 2007
Volume 28, Issue 1 - Feb 2007
Selecting the target year
Research Trends of Japanese Earth Science Education: An Analysis of Chigakukyouiku published by Japan Society of Earth Science Education
Lee, Myon-U ;
Journal of the Korean earth science society, volume 28, issue 2, 2007, Pages 147~158
DOI : 10.5467/JKESS.2007.28.2.147
The purpose of this study was to investigate research trends of Japanese earth science education published in Chigakukyouiku by the Japan Society of Earth Science Education. A total of 129 articles published in the Journal between 1998 and 2003 were analyzed. The Journal published six issues each year, and each issue contained about four articles that were fewer numbers than Journal of the Korean Earth Science Society`s. About Sixty percent of the papers were written by a single author. Analyzing the content of the papers, it was noted that the most articles were geology-related (41.1%) followed by oceanography-related (1.6%) and general science education papers (1.6%). In summary, the characteristics of research trends of Japanese earth science education are as follows: First, the most topics of the papers were related to environmental sciences including earthquake, volcano, and tsunami. This trend seems natural because Japanese schools are situated within the reach of these environmental events. Second, there found many papers that dealt with geological field trip or fossils adjacent to the local community. Third, there were several papers that established a relationship between environmental education and earth science education. Obviously these papers tried to incorporate environmental education into earth science education at the school level. Last but not least, there found an effort to introduce computer into earth science education as an innovative educational method, for example, `computer and earth science education`.
A Development of Earth Science Learning Materials Using Paleolithic Remains and Its Applications
Cho, Kyu-Seong ; Lee, Heon-Jong ; Kim, Cheong-Bin ; Chung, Duk-Ho ; Sin, Min-Jeong ;
Journal of the Korean earth science society, volume 28, issue 2, 2007, Pages 159~168
DOI : 10.5467/JKESS.2007.28.2.159
This study developed earth science learning materials based on paleolithic remains in the Youngsan River basin to provide students with curiosity and interest of science. These materials consist of four activities such as orientation, tour of museum, field trip to paleolithic sites, and making of remains. More than 60% of the teachers said that these materials are likely to improve the scientific process skills of students and also suggested that these could be applied to club activity, field trip, and homework. In addition, materials seemed to help students to understand the properties of the mineral and rock. We suggested that these materials could broaden teachers` subject of teaching in science.
Poststructural Curriculum and Topic-centered Framework of The New Science Curriculum
Kwak, Young-Sun ; Lee, Yang-Rak ;
Journal of the Korean earth science society, volume 28, issue 2, 2007, Pages 169~178
DOI : 10.5467/JKESS.2007.28.2.169
In this research we diagnosed the actual status of the 7th National science elective curriculum and suggested a way to select and organize the content of the new science elective curriculum. The first science education reform was grounded in the structuralism where the structure of discipline was valued above everything else. On the other hand, the second science education reform suggested alternative interpretations of students` opportunity to learn, putting a brake on the structuralist thinking. According to the survey result, the majority of the science elective courses are in need for revision because the contents are overcrowded, too difficult in light of students` learning readiness, failed to draw students` interest in science, and are overlapped and repeated among the 10th grade science, high school science I and II. In particular, Earth Science II and physics II are the most unfavorable courses among students. Thus, we recommended a fundamental change be made in the new curriculum in addition to the optimization of the content. In this paper, we suggested `topic-centered content organization` for the science elective course I, i.e., Physics I, Chemistry I, Biology I and Earth Science I that is designed for both science track and non-science track students. Since curriculum provides students with an `opportunity to learn`, a curriculum study should focus on what the `opportunity to learn` is that students ought to be offered. Based on the result of this study, we recommended one way to select and organize the content of high school elective curriculum.
The Acceleration Response Spectrum for Simulated Strong Motions Considering the Earthquake Characteristics of the Korean Peninsula
Kim, Sung-Kyun ;
Journal of the Korean earth science society, volume 28, issue 2, 2007, Pages 179~186
DOI : 10.5467/JKESS.2007.28.2.179
The response spectrum is one of the important basic materials for the aseismic design. Numerous strong ground motions based on the seismic source characteristics for the earthquakes occurring in the Korean Peninsula were simulated to obtain the response spectra by using the computer program, SMSIM, developed by Boore (2005). Through the extensive review of other study outcomes, the input data for the simulation such as seismic source and attenuation characteristics were selected. The spectra obtained from the simulated ground motions were normalized to 1.0 g of zero period acceleration and compared with the standard response spectrum proposed by the U.S. Atomic Energy Commission (AEC, 1973). In this study, we found that the spectral values for the response spectra appeared to be larger than those of the standard spectrum in the frequency band above roughly 10 Hz. The variation of resulting response spectra was evaluated with the variable stress drops. It was shown that the spectral amplitude of the spectrum for the larger stress drop denotes higher value in the low frequency range.
Study on the Geoelectrical Structure of the Upper Crust Using the Magnetotelluric Data Along a Transect Across the Korean Peninsula
Lee, Choon-Ki ; Kwon, Byung-Doo ; Lee, Heui-Soon ; Cho, In-Ky ; Oh, Seok-Hoon ; Song, Yoon-Ho ; Lee, Tae-Jong ;
Journal of the Korean earth science society, volume 28, issue 2, 2007, Pages 187~201
DOI : 10.5467/JKESS.2007.28.2.187
The first magnetotelluric (MT) transect across the Korean Peninsula was obtained traversing from the East Sea shoreline to the Yellow Sea shoreline. The MT survey profile was designed perpendicular to the strike of the principal geologic structure of the Korean Peninsula
, so-called `China direction`. MT data were achieved at 50 sites with spacings of
along the 240 km survey line. The impedance responses are divided into four subsets reflecting typical geological units: the Kyonggi Massif, the Okchon Belt, the western part of the Kyongsang Basin, and the eastern part of the Kyongsang Basin. In the western part of the Kyongsang Basin, the thickness of the sedimentary layer is estimated to be about 3 km to 8 km and its resistivity is a few hundred ohm-m. A highly conductive layer with a resistivity of 1 to 30 ohm-m was detected beneath the sedimentary layer. The MT data at the Okchon Belt show peculiar responses with phase exceeding
. This feature may be explained by an electrically anisotropic structure which is composed of a narrow anisotropic block and an anisotropic layer. The Kyonggi Massif and the eastern part of Kyongsang Basin play a role of window to the deep geoelectrical structure because of the very high resistivity of upper crust. The second layers with highest resistivities in 1-D conductivity models occupy the upper crust with thicknesses of 13 km in the Kyonggi Massif and 18 km in the eastern Kyongsang Basin, respectively.
Relation of Intensity, Fault Plane Solutions and Fault of the January 20, 2007 Odaesan Earthquake (M
Kyung, Jai-Bok ; Huh, Seo-Yun ; Do, Ji-Yong ; Cho, Deok-Rae ;
Journal of the Korean earth science society, volume 28, issue 2, 2007, Pages 202~213
DOI : 10.5467/JKESS.2007.28.2.202
The Odaesan earthquake $(M_L
A Correction of East Asian Summer Precipitation Simulated by PNU/CME CGCM Using Multiple Linear Regression
Hwang, Yoon-Jeong ; Ahn, Joong-Bae ;
Journal of the Korean earth science society, volume 28, issue 2, 2007, Pages 214~226
DOI : 10.5467/JKESS.2007.28.2.214
Because precipitation is influenced by various atmospheric variables, it is highly nonlinear. Although precipitation predicted by a dynamic model can be corrected by using a nonlinear Artificial Neural Network, this approach has limits such as choices of the initial weight, local minima and the number of neurons, etc. In the present paper, we correct simulated precipitation by using a multiple linear regression (MLR) method, which is simple and widely used. First of all, Ensemble hindcast is conducted by the PNU/CME Coupled General Circulation Model (CGCM) (Park and Ahn, 2004) for the period from April to August in 1979-2005. MLR is applied to precipitation simulated by PNU/CME CGCM for the months of June (lead 2), July (lead 3), August (lead 4) and seasonal mean JJA (from June to August) of the Northeast Asian region including the Korean Peninsula
. We build the MLR model using a linear relationship between observed precipitation and the hindcasted results from the PNU/CME CGCM. The predictor variables selected from CGCM are precipitation, 500 hPa vertical velocity, 200 hPa divergence, surface air temperature and others. After performing a leave-oneout cross validation, the results are compared with the PNU/CME CGCM`s. The results including Heidke skill scores demonstrate that the MLR corrected results have better forecasts than the direct CGCM result for rainfall.
Electrical Anisotropy of the Okchon Belt Inferred from Magnetotelluric Data
Lee, Choon-Ki ; Lee, Heui-Soon ; Kwon, Byung-Doo ; Cho, In-Ky ; Oh, Seok-Hoon ; Song, Yoon-Ho ; Lee, Tae-Jong ;
Journal of the Korean earth science society, volume 28, issue 2, 2007, Pages 227~239
DOI : 10.5467/JKESS.2007.28.2.227
The MT data at the Okchon Belt show peculiar phase responses exceeding
. A reasonable explanation is that those responses are due to an electrical anisotropy structure which is composed of a narrow anisotropic block and an anisotropic layer. Considering the dominant anisotropic strikes of the block (NE-trend) and the layer (NW-trend) inferred from the MT data, if existing, the electrical anisotropy in the Okchon Belt was probably produced by the deformations in the pre-Jurassic period, since the NE-trending shearing or thrusting should create alternating bands of metamorphic rocks and fractures with NE-trending. Correlation of the structural strike of 2-D block with the latest EW-trending deformation events demonstrates that the geometrical structure of the anisotropic block was formed by the latest Daebo and Bulgugsa orogeny.
Integrated Strategy of National Geological Information System in Korea
Hwang, Jae-Hong ; Yeon, Young-Kwang ; Lee, Hong-Jin ; Han, Jong-Gyu ; Chi, Kwang-Hoon ; Ryu, Keun-Ho ;
Journal of the Korean earth science society, volume 28, issue 2, 2007, Pages 240~247
DOI : 10.5467/JKESS.2007.28.2.240
Geological information can be used for various purposes, such as the mine development, landuse, environmental protection, construction industry, and the development of water resource. Although geological information is highly useful for developing industrial raw materials, national land management and people`s welfare, there is no unified public institution in charge of collecting and managing geological information at the national level. Thus, the government is to collect geological information, to construct database and to utilize and to distribute the information in a long-term and systematic way, the purpose of this study is to propose strategies for establishing an integrated geological information management system. In this study, we A) analyzed the current state and management of geological information in Korea and other countries; B) surveyed demand for geological information and analyzed correlations; C) drew up a conceptual diagram of the national integrated geological information management system; and D) developed strategies for establishing the national integrated geological information management system.
Early Cambrian Chengjiang Fauna from Yunnan Province, China
Lee, Chang-Zin ;
Journal of the Korean earth science society, volume 28, issue 2, 2007, Pages 248~254
DOI : 10.5467/JKESS.2007.28.2.248
Recently lots of the Early Cambrian fauna were described from the Yunnan Province of China. The fauna occurs from the Maotiangshan shale that dated between 525 and 520 ma, which is about 10-20 million years earlier than the Burgess Shale fauna of Canadian Rocky Mountain and Sirius Passet fauna in North Greenland. The Chengjiang fauna comprises an extremely diverse faunal assembly, and soft body parts of the fauna are well preserved. Such condition probably resulted from repeated rapid burial environment that prevented the bodies from destruction by currents, bioturbation, and biolchemical activities.