• Spatial Information Research
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• 제6권1호
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• pp.25-33
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• 1998

연구대상 지역은 1:50,000지형도 12매(김해, 부산, 밀양, 양산, 방어진, 동곡, 언양, 울산, 영천, 경주, 불국사 및 감포)를 포함하는 지역으로서 총 면적은 약 5,900Km/sup 2/에 이른다. 본 연구서는 4개의 주제도, 즉 산사태 및 불안정사면 분포도, 경사분류도, 토양분류도 및 선구조밀도도의 작성을 다루고 있다. 작성한 4개의 주제도와 GIS를 이용하여 연구지역의 상대적 사면안정성 분류도(축척 1:100,000)를 작성하였는데, 본 도는 광역 토지이용계획에 활용될 수 있다.

• 전기전자학회논문지
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• 제3권2호
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• pp.178-185
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• 1999

위성사진에서 선구조의 형태로 인식 및 해석되는 단층 및 단열대 구조와 같은 지질구조는 광산지역의 사전탐사나 지질학적 특성에 관한 중요한 정보를 제공한다. 선구조의 방향이 태양의 방위각과 평행하거나 지형의 고저에 의한 그림자가 드리워지는 등의 이유로 해서 명암의 대비가 낮은 지역의 선구조를 효과적으로 추출하기 위한 태양방위각을 고려한 필터링 방법 및 Generalized Hough transform을 이용하여 필터링에 의해 추출된 경계영상으로부터 단층 및 단열대에 대응하는 선구조를 추출하는 방법이 제안되었다.

• 한국지진공학회:학술대회논문집
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• 한국지진공학회 2005년도 학술발표회 논문집
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• pp.11-17
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• 2005

Along the Ulsan Fault System, many Quaternary faults have been reported and investigated with outcrop observation and trench excavation to clarify the neotectonic movements and fault parameters such as length, displacement, slip rate and recurrence interval. In the northern part of the Ulsan fault system, we have interpreted small scale(1:10,000) aerial photographs and extracted lineaments by geomophological features to select trench site. After precise field survey and tracing for lineaments, two trench sites at Galgokri, Gyeongju were selected on the lineament to elucidate the fault movement history. One is successful in finding faults but the other is not. In the Galgok-Chisil trench(3m(w) x 1.5m(d) x 10m(l)), very closed two Quaternary faults cut the alluvial deposits of which age shows about 10-3ka. More than three times of fault movements can be inferred by geologic structures and C-14 dating. Repeatedly fault movements had been occurred before 10 ka, between 10ka-4.9 ka, between 4.9-1.4 ka at Galgok-Chisil trench section.

• Spatial Information Research
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• 제14권1호
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• pp.115-128
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• 2006

본 연구의 목적은 GIS를 이용하여 공간자료 분석을 통한 포항지역의 지하수 개발적지 선정 및 검증을 하는 것이다 이를 위해 본 연구에서는 물수지, 토지이용, 임상도, 토양분포, 지형고도, 경사, 수문지질 및 선구조 등을 분석하였다. 그리고 이러한 분석 자료 및 GIS 공간분석기법을 이용하여 지하수 산출성 표본자료와 상관 분석하여 수문지질 특성평가를 실시하여 수문지질특성에 따른 지하수 산출 특성을 도출하였다. 이러한 결과를 바탕으로, 포항시의 지하수 개발 적지 선정을 위한 지하수 잠재 가능성도를 작성하였고, 이를 지하수 산출량 자료와 비교 검증을 하였다. 검증 결과 지하수 개발 적지 분석 결과와 지하수 산출량 자료와의 관련성이 높게 나타났다. 이러한 지하수 개발 적지 선정 결과는 지하수 개발에 관련된 관리에 사용될 수 있다.

• 대한원격탐사학회지
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• 제10권2호
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• pp.109-120
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• 1994

The study is aimed at the extraction of the groundwater potential areas utilizing the remotely sensed data from satellites. The results of the study are summarized as follows. Analyses of the existing operational wells for groundwater supply indicate that 81% of them are related with lineaments and 51% of them are located at the intersections of lineameters. Thus the features of lineaments are considered to be one of the most important parameters to extract a high potertial area of groundwater. Taking into acount features of lineament, high potential points were extracted from Landsat TM data based on the theory developed in this research, then verifications were made through actual drilling. The result of verification indicates that 9 points produces more 200 cubic meter/day which is the amount required from economical point of view for an operational use. Since the actual boring was not made on the recommended points for 4 points due to the difficulty of access to the exact points and of the approval for boring, they did not yield enough output. The result might have been improved if the exact points were bored and if the boring bad been made deeper, since the maximum depth of boring was limited to 62 meters.

• 한국지형학회지
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• 제25권3호
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• pp.89-103
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• 2018

This study presents results of analysis on fault-related landforms and the Quaternary fluvial landforms, which are important evidences for active faulting by identifying surface deformation, around the Ulsan Fault Zone. In addition, this study suggests lineament map and inferred active fault-line map based on analyzing linearity and continuity of these landforms and by compiling location information of existing active faults. We convince that quantitative tectonic-geomorphological analysis are an effective method for active faults tracking, in particular, considering the conditions of relatively low seismicity and surface ruptured-events in the Korean Peninsula compared to plate boundary active areas. However, research on active fault in South Korea is just an infant stage since the 1990s and requires accumulation of research achievements on development and application of various fault analysis techniques, analysing and standardizing linear structures.

• 한국지형학회지
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• 제26권1호
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• pp.93-106
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• 2019

The Yangsan Fault is one of the main fault systems in the Korean peninsula. It can be divided into three segments (northern, central, and southern) by its paleoseismic and structural geologic properties. Based on the geomorphic features of the northern segment, which includes the Yugye Fault, we identified deflected streams as a geomorphic marker of strike-slip component of the fault, and knickpoints along the streams as evidence of dip-slip component of the fault. Geomorphic analyses showed that (1) the horizontal displacements of deflected streams decreased and (2) the retreat amounts of knickpoints tend to increased toward north along the lineament. We interpreted the variations caused by strain partitioning; that is, there might be some increases of the vertical component toward north, whereas the main strike-slip fault system dies out, splaying into horsetail structure toward north. Based on the response time of the landforms, these interpretations imply that (1) there were differences between horizontal slip rate and vertical slip rate along strike, and/or (2) there were different timings between horizontal and vertical deformations by fault.

• 한국지형학회지
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• 제26권1호
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• pp.79-91
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• 2019

This study analyzed the distribution of fluvial landforms, fault-related geomorphic features and lineaments around the area of Ungchon-Ungsang in the Dongrae Fault, and discusses the charateristics of geomorphic development based on those. As a result, the NE-SW lineaments are predominantly developed in many numbers within the study area, and the NW-SE or N-S secondary lineaments are developed induced by multiple deformation with the Yangsan Fault. Geomorphologically, the early tectonic history of the Ungchon-Ungsang basin is largely divided into three stages ; 1) the Tertiary fault activity and formation of fracture zone, 2) development of erosional basin, 3) local crustal movements and development of fault-related topography. It is assumed that alluvial fans, deflected channel and stream piracy were formed by local tectonic movements related to faultings during the Quaternary.

• 지질공학
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• 제16권1호
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• pp.23-30
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• 2006

현장 지표지질조사 수행 전에 지질구조를 사전 파악하기 위해 일반적으로 항공사진과 위성영상자료가 이용되는데, 이는 사전 및 시 공 중 현장 조사의 효율을 극대화하기 위한 방안이다. 화성암, 퇴적암 및 변성암이 인접하여 노출되는 안동지역의 항공사진에서 추출한 847개 선구조선의 방향성과 현장 지표지질조사에서 측정한 1,940개 불연속면의 방향성을 분석한 결과, 방위는 어느 정도 상관성을 보이나, 선구조선의 방향성은 암반의 종류와 불연속면의 종류에 따라 다른 양상을 나타낸다. 즉, 지표지질조사에서의 불연속면은 항공사진에서 선구조선으로 판독되지 않는 것들도 존재하기 때문에 암반의 종류와 불연속면의 종류별 선구조선의 방향 분석이 요구된다. 따라서 불연속면의 영향을 크게 받는 터널, 사면 등 지반구조물의 합리적인 건설을 위하여서는 항공사진 분석과 동시에 현장 지표지질조사에서 암반의 종류 및 불연속면의 종류에 따른 불연속면의 방향성 측정이 필요하다.

• 대한두개안면성형외과학회지
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• 제11권2호
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• pp.69-72
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• 2010

Purpose: All masks are created by craftspeople. Accordingly, most masks are generally predictable in dimensions, and the portraitures usually depict the faces and heads of humans. The authors found some masks representing the features of facial asymmetry, such as hemifacial microsomia and rerely lateral facial cleft. Methods: Reviewing the legends of wearing masks with a medley of grotesque features, the authors could deduce the tone of society in those days. Results: A mask, 'crooked mouth', of Native Americans shows typical lineament of hemifacial microsomia. The deformity of the face was legendarily regarded as resulting from trauma caused by either 'one's fault' or a 'curse of God'. 'Grandmother' mask, used in the Korean masque dance of the Kosung province and Sooyoung province also shows the typical features of hemifacial microsomia which represent the old, deserted wife. 'Kori sanni yakka' mask in Sri Lanka, shows the facial asymmetry. In the legend, the child who became demon captured humans and caused illness through wind, phlegm, and bile to revenge on his father who killed his mother by deception of her maid. Conclusion: The authors presume that the victims of severe facial asymmetry were treated contemptuously at that time.