• 한국지구과학회지
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• 제21권3호
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• pp.250-257
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• 2000

충북 보은군 임곡리의 시추 표품(90-B-1)에서 Pseudoschwagerina paraborealis 와 Quasifusulina sp.를 기재하였으며, 이에 근거하여 Pseudoschwagerina대를 설정하였다. Pseudoschwagerina paraborealis는 영월 탄전의 밤치층에서 보고되었고 유라시아 대륙의 아셀리안과 사크마리안 지층에서 다수 기재된 바 있다. 보은 탄전에서 Pseudoschwagerina paraborealis 가 산출되는 것은 영월탄전의 밤치층과 대비되는 지층이 보은 탄전에서도 존재한다는 증거이다. 이 방추충과 함께 같은 층준에서 Quasifusulina sp.가 산출된다. 보은 탄전에서 전기 고생대의 방추충 종을 동정하여 발표하는 것은 이번이 처음이다.

• 한국지구과학회지
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• 제27권7호
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• pp.768-777
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• 2006

The goal of this study is to elucidate the fusulinid biostratigraphy of the Carboniferous limestones distributed in the Gangdong area of Samcheok coalfield, Korea. The Carboniferous strata of the study area mainly comprise alternaton of dark gray shale, dark gray and reddish sandstone, and gray limestone. The limestones consist mainly of wackestonepackstone containing various fossil fragments such as crinoid, coral, brachiopod, foraminifera, fusulinid, and bryozoa; this observation thus suggests that the study site was the shallow marine environments. A tital of 12 species belonging to 5 genera of fusulinids are identified from the limestones of the Gangdong geologic section: Ozawainella turgida Sheng, Ozawainella sp. A, Ozawainella magna Sheng, Pseudostaffella antiqua (Dutkevich), Pseudostaffella paracompressa Safonova, Pseudostaffella kimi Cheong, Pseudostaffella sp., Beedeina lanceolata (Lee and Chen), Beedeina samarica (Rauser-Chernoussova), Beedeina sp. A, Neostaffella sphaeroidea cuboides Rauser-Chernoussova, and Hanostaffella hanensis Cheong. Such fusulinids species were reported from the lower part of the Geumcheon Formation in Samcheok coalfield and the middle Moscovian stage in Eurasia. On the basis of the fusulinid biostratigraphic correlation of the Gangdong geologic sections (A) to (C), the limestone should be overlapped by faults and folds. Moreover the stratigraphic thickness of the limestone is thinner than the thickness of the limestone outcrop of the Gangdong geologic section. Therefore, the stratigraphic sequence of the Gangdong geologic section is represented as the Gangdong geologic section (A).

• 환경영향평가
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• 제12권1호
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• pp.9-22
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• 2003

To consider environmental characteristics in the scope of geochemistry of streams, Hwasun area, soil, sediment and water samples near/in the streams were analyzed in texture and metal contents of soil and sediment and in quality in water. From those analyses, the soils are loamy sand, sandy loam, loam and silty loam in texture. And, the sediments are slightly gravelly sand, gravelly sand and gravelly muddy sand in facies. Metal contents in soils and sediments are of high near Hwasuneup and Hwasun coalfield. In peculiar, P, Co, Li, Ni, Zn and Pb exceed over crust mean contents. Physico-chemistry of above streams according to pH-Eh and Piper's diagrams indicates that the streams are, typically, assigned to natural river water. Water qualities of BOD, T-N and T-P in areas near Hwasun coalfield, Dongmyeon and Hwasuneup are polluted over V level. Enrichment factor(EF) representing metal condensation in P, Cu, Zn and Pb appear near Hwasun coalfield and Hwasuneup from the soil and sediment samples, in part. Additionally, river water in dry season is very high in BOD, T-N, $Na^+$ and ${SO_4}^{2-}$. It is suggested that the relatively high metal contents in the stream be connected with above coalfield and urban areas.

• 한국지구과학회지
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• 제31권5호
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• pp.419-429
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• 2010

The Pyeongan Supergroup can be divided into seven lithostratigraphic units (Moscovian to Early Triassic?) in the Samcheok coalfield and four lithostratigraphic units (Bashkirian to Artinskian) in the Yeongwol coalfield of South Korea. On the basis of fusulinid biostratigrapic data in the Yeongwol coalfield, the boundary between the Carboniferous and Permian strata of the Pyeongan Supergroup has been considered as unconformity since the Kasimovian and Gzhelian strata are missing. Protriticites and Triticites, which are the cosmopolitan index fusulinids indicating the Kasimovian and Gzhelian age, are not found from the uppermost part of the Geumcheon and Pangyo Formations. Recently some fusulinids such as Xenostaffella koreaensis, Hanostaffella magna, and Fusulina danyangensis found from the uppermost part of the Geumcheon and Pangyo Formations are recognized as the early Kasimovian-type fusulinids, although the upper Kasimovian- to Gzhelian-type fusulinids are still missing.

• 한국지하수토양환경학회:학술대회논문집
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• 한국지하수토양환경학회 2003년도 총회 및 춘계학술발표회
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• pp.389-392
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• 2003

Coalfields in Korea have been grouped into thirteen based on mainly geographycal and geological structure, ten out of which have been developed. To classify the phisico-chemical characteristics of mine drainage from each coalfield and, if possible, to clarify the intrinsic reasons of them. Sampling of waters from 59 mines in eight coalfields has been carried out. Higher pH of drainage water from the mines of the Cungchung coalfield belong to the Beading system, Mesozoic era than those belong to the Pyungan system, Proterozoic era is due to the low content of sulfides of neighboring strata. The drainage from coal beds overlying limestone bed mostly show high pH. Waters from the Gangrung and Samchuck coalfields coal beds are located within black shale formation which contains a lot of sulfides showed mostly very high metal and S $O_{4}$$^{2-}$ concentrations.

• 지질공학
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• 제18권2호
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• pp.159-166
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• 2008

지각 천부인 취성변형의 조건 하에서도 지표에서 발달하는 절리들의 방향성 분포가 지하 심부로 가면서 지하 몇 미터에서부터 불연속면의 변화를 보이는지에 대해 의문이 생긴다. 이에 대한 의문의 해결을 위해 본 연구에서는 지표지질조사를 통해 측정한 불연속면의 자료와 BIPS 및 Televiewer에 의해 측정된 불연속면의 자료들을 두 개 지역에 대해 비교 분석하였다. 호남탄전지역은 지하 심부로 가면서 지표에서 30 m와 40 m 지점에서 불연속면의 방향성이 변하며 수원지역의 경우는 20 m에서 불연속면의 방향들이 변화하였다. 이와 같은 변화가 등방성의 암석에서 변화를 관찰함이 심도별 변화를 대비 할 수 있으나 호남탄전의 경우는 퇴적암으로 측정된 암반이 세립질의 사암과 세일이 교호하는 이방성의 암반이며 스르스트단층이 통과하고 있다. 그러나 수원지역의 경우는 대개 운모편암들로 호남탄전 지역보다는 암질의 변화가 적다. 그러나 두 지역 공히 지하 20 m와 30 m 이하에서 이미 지표와는 달리 불연속면의 분포특성이 바뀜을 시사하고 있다.

• 자원환경지질
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• 제22권2호
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• pp.129-139
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• 1989

The anthracite coalfields of Korea are confined to the areas where sedimentary rocks of Permian and Jurassic are preserved. The Chungnam coalfield lies in the sedimentary rocks of Jurassic which belongs to the Daedong Supergroup (the Nampo group). For the property analysis of each coal seam interbeded in Daedong Supergroup, Seongju area is chosen and twelve coalseams are taken. Many standard tests have been established for optical analysis (maceral analysis, coalification degree measurement), chemical analysis (proximate, ultimate analysis) and physical analysis (ignition temperature, ash fusion temperature, hardgrove grindability index and X-ray diffraction). The Jurassic anthracite mainly consist of vitrinite and macrinite and the range of the reflectance is $R_{max}$ 5.0-6.5 which means metaanthracite rank. By the chemical composition analysis, it shows low H/C and high O/C value compare with international average value. By the physical analysis, it has very high ignition temperature ($531-584^{\circ}C$) and ash fusion temperature ($1510-1700^{\circ}C$) and very low combustion velocity (0.2-1.9 mg/min). The very wide range of the hardgrove grindability index (46-132) means that the grindability controlled mainly by the structural conditions of coal bearing strata.

• 지질공학
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• 제22권1호
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• pp.59-65
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• 2012

삼척탄전 지역인 태백산맥 고원의 ${\bigcirc}{\bigcirc}$지역에서 산사면의 거동이 발생하여 거동의 특성을 밝히기 위해, 지질 및 지질 구조특성을 분석하였다. 지반거동이 발생한 지역은 고생대의 평안층군이 분포하는 곳으로 금천층과 장성층이 분포하는 곳에서 집중적으로 거동이 발생하고 있다. 이곳에 발달하는 불연속면들을 모두 동북동 방향의 주향에 30~$80^{\circ}$ 북북서 방향으로 경사진 곳과 40~$90^{\circ}$ 남동쪽으로 경사진 것들이 우세하게 발달하며 북서 방향의 주향을 가지는 불연면속면들도 관찰된다. 지반거동이 일어나는 지역에서 남쪽인 그룹1지역(P1에서 P4 지점)은 전단응력이 작용하며 안행상 인장틈이 발달하였다. 그룹2(P5에서 P7 지점)와 그룹3(P8, P9 지점) 지점은 공히 인장균열과 함께 정단층성의 스텝균열이 발생하였다. 이들을 근거로 각 지점에서 발생한 인장 방향을 추적하면 시계바늘 반대 방향으로 인장력이 발생하며 지반이 거동했음을 보여 준다. 이와 더불어 연구지역 동쪽에 산사면을 따라 개설된 도로의 절취로 인한 산사면에서 응력 불균형 발생도 하나의 원인을 제공한 것으로 판단된다.

• Journal of East-Asian Urban History
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• 제2권1호
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• pp.129-162
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• 2020

This study aims to inquire the sense of place. As an example, I present some conflicts over the right of coal spilled into the sea during coal loading which had occurred frequently in the formation and development period of the Chikuho coalfield (Chikuho-tanden) and Wakamatsu Port located in the northeastern part of Fukuoka Prefecture.

• 한국지반공학회:학술대회논문집
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• 한국지반공학회 2001년도 봄 학술발표회 논문집
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• pp.17-24
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• 2001

Several underground cavities were found during construction of a road tunnel in 600m length . The area belong to Whasoon coalfield where extensive ground subsidences have occurred. It is necessary to find other underground cavities which might be located just near the road tunnel for safety, The field surveys and laboratory tests were conducted such as surface geological survey(672m), surface reflection seismic exploration(399m), drilling test(3 NX holes), 9 laboratory tests for rocks, 3 boreholes televiewer tests, reflection seismic exploration in tunnel(2, 342m). To estimate the effects of underground cavities on the road tunnel, 3 geological section were analysed with FLAC-2D modeling. The effects of the ground reinforcement were also analysed.