• Title/Summary/Keyword: pediment

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Critical Comments on Akagki's Pediment Morphology in Korea (한국 Pediment 지형의 연구성과에 관한 비판과 문제점)

  • Park, No-Sik
    • Journal of the Speleological Society of Korea
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    • no.68
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    • pp.99-120
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    • 2005
  • It is a wrong decision to use only topographic and geological maps for the study of pediment morphology in Korea. For the study of pediment morphology it is necessary to survey the earth structure by field techniques. In Korea, pediments are mostly found in granite areas with hardrock cover. But, pediments also developed in gneiss areas and what is worse in limestone areas. So, all areas in Korea developed pediment morphology. Only in South Korea pediments show a direction from south to north or from west to east. They developed only in right angles to each other, either parallel or in right angles to the strike, depending on the bedrock structure. Pediments are found in two levels. The upper level pediments are correlated with the lower level erosion surface. Besides this pediments are found in Hoenggye-ri of the Taegwolryong area in a third level 800m above sea level. The pediments developed in basins, at the lower margins of steep slopes dividing three levels of erosion surfaces and around the residual mountains on the erosion surfaces. The first belong to the early stage of pedimentation, the second to the middle stage and the third to the last stage. Also, in Korea monadnock and residual mountain have developed the pediments are correlated the slope of the hinter mountains. Akagki states that the only pedimentation times have been times of arid climate and that they are dissected by gulley erosion with climatic change, but writer's study proves that pedimentation takes place with eustatic movement, reckless defore-station and convectional rain. These facts indicate that the landforms, geological character and process of erosional cycle of the pediments in Korea resemble much those in the Chugoku Mountains of south wertern Japan, but they are larger in scale than those in the Chugoku Mountains. In conclusion, while Akagki emphasizes the geological character and climatic change in pedimentation, the writer studies prove that eustatic movements, especially the sea level rise after the Wurm age are important factors for pedimentation. Besides this the author's studies allow a classification of gentle slopes.

Comparative Study on the Runoff Process of Granite Drainage Basins in Korea and Mongolia

  • Yukiya, Tanaka;Yukoinori, Matsukura
    • The Korean Journal of Quaternary Research
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    • v.18 no.2 s.23
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    • pp.67-73
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    • 2004
  • Dissected erosional surfaces are widely distributed in the western part of Korea (e.g. Icheon, Chungju, Jecheon, Seosan). The deposits with thickness of less than 2m occur on the smooth bedrock surface are composed of poorly sorted subangular gravels with less than 20cm diameter. However, only weathered mantle of granites without the gravel layer are observed at some outcrops. The results of grain size analysis of deposits of Icheon district revealed that the characteristic of the gain size distribution is very similar with the results of sheetflood deposits presented by Blair (1999) in the Death Valley. Loess layer with buried soil layers of MIS7 covers the sheetflood deposits. The loess layer implies that the sheetflood deposits occurred before MIS7 based on the typical Loess sequences presented by Naruse et al.(2003). On the other hand, the climate of Korean Peninsula in MIS2 was very dry and cold (Yoon and Hwnag, 2003) by pollen analysis. This is because Yellow Sea was completely emerged during the MIS2(e.g. Sau\ito, 1998). So, it is thought that the climate in Korean Peninsula of not only MIS2 but also other glacial ages such as MIS8 was similar with present Mongolian climates. Tanaka et al.(2005) pointed out that Hortonian overlandflow occurs in grass vegetated granite basin in Mongolia. Therefore, dissected piedmont gentle slopes in the western Korea were possibly formed by sheetflood erosion during probably MIS8 as pediment widely distributed in Mongolia.

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A Study on the Periodic Characteristics of Design Expression in the Facade of the Main Adminstration Building in University (대학교 본관 파사드에 나타난 연대별 디자인 표현 특성)

  • Seo, Hee-Sook
    • Korean Institute of Interior Design Journal
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    • v.19 no.4
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    • pp.11-21
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    • 2010
  • The purpose of this study is to examine the design characteristic of the facade of the main adminstration building in university. The main administration building which is a basic of educational facilities has various administration setups, such as the register's office, the student affairs section, the planing department, the general affair's office and so on. This building performs academic, administration, facilities management, and admissions service. Also, the building has an ideological, historical, and symbolic image, having an organic relationships with the other educational facilities. This study choose one hundred seven universities, except universities that does not provide information easily and the second campus which does not have the main administration building, as the subjects of the study. The analysis is derived from the design elements applied to facade design of the main administration building and this is divided into design principles(balance symmetry, contrast, rhythm), the formal composition(geometrical, linear), and the style of architecture(classical architecture and modern architecture). The results of the research are summarized as follows: The design characteristic of the facade of the main adminstration building in university has chronologically changed. First of all, in the 1940's, symmetry emphasized on the center of building, superimposition, division, pediment, and arch were marked. Then, superimposition was prominent in the 1950's and symmetry emphasized on the center of building was shown in the 1960s again. Flat roof was in the 1970's, 1990s and 2000's. Finally, pediment was dominant in the 1980's. The design elements of the main administration building can be samples of chronological styles of architecture. Facade design, with proper design of the past and recent times, includes the meaning that achieve the great purpose of the university by emphasizing visual images.

The Geomorphic Characteristics of the Location of the 4 Traditional Settlements in Youngnam District (영남지방 4대 전통취락의 지형적 입지 특성)

  • Choe, Hee-Man
    • Journal of the Korean association of regional geographers
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    • v.9 no.4
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    • pp.413-424
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    • 2003
  • This study aims to interpret the location of 4 traditional settlements in the Youngnam district of Korea in view of geomorphology. For this study, GIS techniques were used to analyse quantitatively the degree of slope, slope aspect and the relation with river/stream of these regions. Yugok is located on pediment in the valley basin. Cheonjeon is located in the end part of the hill. Hahoe is located on the convex natural levee of the flood plain. Yangdong is located on a hillside. Houses are mostly distributed with south, southeast, and southwest aspect, but in Hahoe face all sides. Also, the settlements are located on average $10{\sim}20m$ above river bed. This indicates a safe height above river bed for avoiding an flood damage. These results imply that the location of the traditional settlement is based on a scientific logic and rationale. It is thus argued that the settlements satisfy exellent geomorphic conditions from the perspective of modern theories of residential location.

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Geomorphic Development of Tucson and Chiricahua in Arizona, U.S.A (미국 아리조나 투산과 치리카와 지역의 지형발달)

  • PARK, Heui Doo
    • Journal of The Geomorphological Association of Korea
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    • v.15 no.2
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    • pp.1-9
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    • 2008
  • This studied area is divided into the mountains and the valleys. The former is nearly consisted of the badland, the latter is consisted of alluvial plains in the valley, fluvial terrace at the side of the river, alluvial fans between mountains and river terrace. There are many tors, mushroom rocks, sugarloaves, weathering pits, castle coppies, columnar rocks, pinnacles, balanced rocks carved on tuff by means of erosion in the Chiricahua Nat'l Monument. Willcox Playa is alkalic crust where was lake in pleistocene epoch at the time wetter than present. Alkalic crust was made of Ca, Na, K etc. There are sand dunes around here where was lake side in the past. We found many kinds of fossils at the 2,000ft thick horizons of valley alluvium. Pediment and alluvium bordered at the base of Mt. Dragoon wavily. Exfoliation and spalling and sheeting resulted in boulders around here. Tucson is alluvial plain filled in thick 7,0000ft valley. Volcano, fault, erosion, alluvium were and are processing in this area.

A Study on the Reds of Kyungbok Palace (경복궁에 표현된 붉은색에 관한 연구)

  • Jeong, Yoo-Na
    • Korean Institute of Interior Design Journal
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    • no.34
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    • pp.114-123
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    • 2002
  • Koreans have regarded the red as a major color from old times. The red is a traditional color to have symbols of high position, national foundation and especially royalty. So, we can see the reds in the palace for kings very much.The purpose of this study is to draw out the features of color red in the Kyungbok palace. The color was analyzed by two categories-architectural buildings${\cdot}$structures and ornamental painted patterns. The major findings from this research are summarized as follows:1. Seokganju(similar to terra rossa) and toyugsaek(light seokganju) are found main colors in architectural space, while seokganju has a linear effect and toyuk has a facial effect. 2. Yugsaek(similar to light vermillion) and Jangdan(similar to orange) are found main colors in ornamental painted patterns. These colors are more vivid and brighter than those for architectural space.3. As for two-color combination, reds and blues(including greens) are found major combination both of architectural space and ornamental patterns. And reds and white are the following combination, which gives an bright image by white. 4. As for three-color combination, red-white-black combination of pediment and red-blue-white combination of openings are found very popular in architectural space, while red-blue-yellow combination is most popular in ornamental patterns.The reds are found dominant color of both architectural space and ornamental patterns in the Kyungbok palace. The color design as shown in the Kyungbok palace can be considered as the feature of traditional color design.

A Study on the characteristics of space design in the colonial period in Indonesia (인도네시아 식민시대의 공간양식 특성에 관한 연구)

  • Kang, Yu-Na;Oh, Hye-Kyung
    • Korean Institute of Interior Design Journal
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    • v.20 no.3
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    • pp.190-197
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    • 2011
  • The purpose of this study is to examine the characteristics of space design appearing in facade and interior composition factors of buildings in the colonial period in Indonesia. Research method is a field study, and subjects of the study is 14 buildings built in the colonial period located in Jakarta. The research result is as follows. First, Facade is divided into C type (colonial style), CT type (colonial style + traditional style), CA type (colonial style + art deco style), and CTA type (colonial style + traditional style + art deco style). Among them, CT type which shows both a colonial style and traditional style accounts for the most. As for Java traditional style mainly shows Joglo roof style and bratticing decoration on top of gates, and the colonial style presents both an Amsterdam canal housing style such as narrow Facade and unusual Gable, and a classical style such as pediment, entablature, and columns. Second, interior space is divided into C type (colonial style), CT type (colonial style + Indonesian traditional style), A type (art deco style), and CA type (colonial style + art deco style). Among them, CT type was also accounted for the most. Selected traditional style is a shape of bratticing decoration on top of gates and a shape of tenon of Joglo housing structure. Colonial style showed classical style such as exposed crossbeams, columns, and pilasters, and as for unique decoration, there are Ancona decoration and Delft tile decoration. On one hand, art deco style used typical art deco factors such as contrast of various materials and complementary color or golden color use as well as zigzag or vertical lines and geometric ornament by combining with colonial style or traditional style. It is expected that such research result will be a practical reference data when Korean construction companies or interior design companies advance Indonesia.

Distribution of Some Metallic Elements in Surface Sediments of the Southeastern Yellow Sea. (황해 남동해역 표층퇴적물 중 수종 금속원소의 분포 특성에 관한 연구)

  • 이창복;정회수
    • 한국해양학회지
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    • v.27 no.1
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    • pp.55-65
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    • 1992
  • Ninety-seven surface sediment samples, collected from the southeastern part of the Yellow Sea, were analyzed for their contents of five metallic elements, including Fe, Mn, Ni, Cu and Pb as well as their grain-size and calcium carbonate content. The result showed a contrasting behaviour among the five metallic elements. with respect to their relationship with the sediment grain0size. contents of nickel and copper demonstrated a fairly linear relationship with the pediment grain-size whereas those of manganese and lead did not. This different behaviour in these metals was interpreted as being the result of the anthropogenic inputs (for Pb) and modification during the early diagenesis (for Mn). The R0mode factor analysis result also confirmed the different behaviour of manganese and lead from that of copper and nickel. Based on this different behaviour in metals the (Mn+Pb)/(Cu+Ni) ratio was suggested as a possible criterion for distinguishing the fine sediments in the study area, which originated from two different source area. China and Korea.

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