釜山 多大浦層의 層序 및 堆積 : 부산 다대포층의 층서 및 퇴적

이유대 부산대학교 1975 論文集: 自然科學篇 Vol.20 No.-

聞慶炭田 의 地質

李裕大 釜山大學校 師範大學 1977 교사교육연구 Vol.4 No.2

The Munkyung Coal Field is located in Munkyung-Gun, Kyeongsangbuk-Do. The area has been surveyed at first by Shiraggi, Japanese geologiest in 1935. Geology of the area consists mainly of sedimentary rocks as'Cambro- Ordovician Chosen System, .disconformably overlain by the upper Carboniferous-Triassic Pyeongan System, which lies in angular unconformity beneath the Jurassic Daedong System. All Formations within the three Systems are conformable to one another. The Chosen System is classified into the Gurangri Formation and the Daebongri Limestone Formation, belonging to the great Limestone Series. The Daedong System is classified into a basal Conglomerate Formation, Buunryung Formation, Ongzomri Formation, Neori Formation. Bongmyungri Formation and Bongmyungsan Formation.. The sedimentary rocks are intruded by the Cretaceous granite in the northern and southern parts of the Coal Field.

A Study on the Characteristics of Submarine Geology in Pusan Bay:Sedimentation P

이유대 부산수산대학 해양과학연구소 1993 연구논문집-부산수산대학교 해양과학공동연구소 Vol.25 No.-

釜山 多大浦層의 層序 및 堆積

李裕大 부산대학교 1975 論文集 Vol.20 No.2

The present study is directed to work out the stratigraphy, sedimentation and geologric history of the Dadaepo Formation which is the represntative of the volcanogenic sediments occurring lenticularly in the upper part of the Gyeongsang system in Gyeongsan-nam Do. In the present area, the relationship between the volcanic rocks and the sediments has previously been interpreted as intrusive relation However, the present study resulted in the conclusion that the Dadaepo Formation unconformably overlies the underlying volcanic rocks and is covered by the overlying volcanic rocks. This conclusion is to re-establish the stratigraphic sequence of the present area. It is considered that the stratigraphy of the sediments distributed in lenticular or irregular forms within the volcanic sequences of the upper part of the Gyeongsang System has to be reviewed. The underlying volcanic rocks below the Dadaepo formation comprise andesite, agglomerate and breccia. The Dadaepo Formation is subdivided into the lower(Dusong Member) and upper member. The Dusong Member consists of the alternation of variegated-reddish sandstones(mostly andesitic) and variegated conglomerates. The upper member comprises greenish coarse andstones and andesitic sediments. The volcanic rocks overlying the Dadaepo formation consist of andesite, volcanic breccia, and lapilli tuff.

부산일원(釜山一圓) 연안해빈사(沿岸海賓砂)의 퇴적학적(堆積學的) 연구(硏究)

이유대,최광선,Lee, You Dae,Choi, Kwang Sun 대한자원환경지질학회 1983 자원환경지질 Vol.16 No.2

This report deals with the sedimentological study of the littoral sand of beaches in the Busan area. The purpose of this report is to know the grain size, mineralogical composition, heavy mineral and clay mineral of the beach sands, and gravity measurements of the Nagdong River Deltas. 1) As a whole, the littoral sand of the beaches are composed of uniformly medium grained, moderately sorted and nearly symmetrical. The barrier sand of the Nagdong Estuary is composed of fine grained, well sorted and nearly symmetrical. 2) The littoral sand of the beaches is transported by saltation and rolling. The barrier sand of the Nagdong Estuary is transported by suspension and saltation. 3) In the littoral sand of the beaches, the ratio of feldspar to quartz is 1 :2.31 and in the barrier sand of the Nagdong Estuary 1:1.40. 4) The content of heavy mineral of samples ranges from 0.54 to 3.87 %. The principal heavy minerals are hornblende, pyroxene, epidote, garnet, leucoxene, zircon, apatite, magnetite, hematite and ilmenite with minor accessories of rutile and olivine. 5) The x-ray diffraction analysis of the clay mineral informs the existence of quartz, feldspar, kaolinite and montmorillonite. The montmorillonite is considered to have been derived from the alteration of acidic volcanic rocks. 6) To determine the depositional structure of the Nagdong Estuary, Gravity measurements were made. Free air anomaly ranges from 14.5 mgal to 33.5 mgal and Bouguer anomaly ranges from 14.3 to 23.5 mgal and both are closely related to the topography. According to the interpreted layer structure, the upper layer composing sand, silt and clay, the intermediate layer composing sand with gravel, the lower layer composing weathered and soft rock, and bed rock composing hornfels or andesite. 7) The depositional environments of the study, the littoral area is dominated by the marine environment and the Nagdong Estuary by the mixed environment.

낙동강 하구역의 해양환경 연구 : 퇴적작용 및 중금속 분포 Sedimentation Processes and Heavy Metal Distributions

이유대,김창원,김동윤,박병남,이기종 한국물환경학회 1990 한국물환경학회지 Vol.6 No.1

낙동강 하구역에서의 중금속 분포와 퇴적작용에 대한 연구를 1987년 10월부터 1988년 9월에 걸쳐 수행하였다. 연구지역의 퇴적환경은 하구환경이며 입도분포 특성에 따라 모래섬, 수로 및 조간대 지역으로 분류된다. 모래섬의 퇴적물은 뜬짐, 튐짐, 굴르기 상태로 운반되었으며, 조간대는 주로 뜬짐과 튐짐으로 이동되었다. 수로의 퇴적물은 거의 굴르기와 약간의 뜬짐상태로 운반되었다. 모래섬은 강한 파도와 영향을 받으며 그 후방에 놓인 조간대는 약한 조류의 영향을 받는다. 수로는 강하고도 연속적인 조류의 영향을 받는다. 수중에서 Cu, Cd, Cr^(+6), Pb, Zn의 농도는 각각 최고 27.9, 6.7, 20.4, 16.3, 37.3ppb를 기록하였으며, 퇴적물에서는 27.0, 1.65, 25.4, 15.4, 132.9ppm을 각각 나타내었다. 이들 중금속의 재첩(V. Miiller)에 의한 충섭취인자는 각각 1600, 310, 310, 490, 7900g 이었다. The sedimentation processes and heavy metal distributions at the Nakdong estuary were investigated during October 1987 and September 1988. The depositional sedimentary environment of the studied area was estuarine environments and was devided into three provinces depending on its textural parameters such as barrier, tidal flat, and water passes. The relationship between the textural parameters showed that the barrier was under strong wave action, that the tidal flat was under relatively weak wind-induced currents, and that the water passes were under strong and continuous tidal currents. Each environment was resulted from different transport mechanism. The sand-barrier sediments were transported by all three populations including suspension, saltation, and bed load. And the water pass-deposited sediments were by the bed-load with some suspension population. In water mass over the studied area, the concentrations of heavy metals including Cu, Cd, Cr^(+6), Pb, and Zn were recorded to be 27.9, 6.7, 20.4, 16.3, and 37.3 ppb in their highest concentrations, respectively. And those in sediments were 20.0, 1.65, 25.4, 15.4, and 132.9 ppm, respectively. The total uptake factors of Cu, Cd, Cr^(+6), Pb, and Zn by V. Mu¨iller (Corbicula fluminea) were 1600, 310, 310, 490, and 7900, respectively.

A Study of Sedimentary Environment in the Estuary of Nakdong River : sedimentation Processes and Heavy Metal Distributions

이유대,김창원,LEE, YOU DAE,KIM, CHANG-WON The Korean Society of Oceanography 1990 韓國海洋學會誌 Vol.25 No.4

The sedimentation processes and heavy metal distributions at the Nakdong estuary were investigated during October 1987 and September 1988. The depositional sedimentary environment of the studied area was estuarine environments and was divided into three provinces depending on its textural parameters such as barrier, tidal falt, and water passes. The relationship between the textural parameters showed that the barrier was under strong wave action, that the tidal flat was under relatively weak wind-driven currents, and that the water passes were under strong and continuous tidal currents. Each environments was resulted from different transport mechanism. the sand barrier sediments were transported by all three populations including suspension, saltation, and bed load, and water pass-deposited sediments were by the bad load with some suspension population. In water mass over the studied area, the concentrations of heavy metals including Cu, Cd, $Cr^{+6}$, Pb and Zn were recorded to be 27.8, 6.7, 20.4, 16.3, and 37.3 ppb in their highest concentrations, respectively. and those in sediments were 20.0, 1.65, 25.4, 15.4, and 132.0 ppm, respectively. The total up take factored of Cu, Cd, $Cr^{+6}$, Pb, and Zn by V. Muller (corbicula fluminea) were 1600, 310, 310, 490 and 7900, respectively.

慶南 晋州一圓 晉州層의 堆積學적 硏究

李裕大,李鍾文 부산대학교 1984 자연과학논문집 Vol.38 No.-

This study is directed to study of the stratigraphy, sedimentary rocks and depositional environment of the Jinju formation in Jinju area. The Jinju formation in the area is subdivided into the lower member, middle member and upper member by their lithologic characteristics. Each member of the Jinju formation is composed mainly of grey arkose sandstone, sandy shale and dark grey shale. A few thin layers of limestone and calcareous shale are intercalated in the formation. In general arkose sandstone predominates in the lower, and grey shale in the upper parts. As in most places, sandy of the formation shows onion-structures and contrains many nodules. The grain particle analysis of the sandstone samples were obtained moderately sorted, positive skewness and meso-kurtic. The depositional environment of the study, the basin of the Jinju formation was dominated by the fluvio-lacustrine environment.

恩城炭鑛의 地質

李裕大 부산대학교 1972 論文集 Vol.13 No.1

The Eunsung coal mine located in Kaeun-Myeon, Munkyung-Gun, Kyeongsangbuk-Do. The area has been surveyed at first by Shiraggi, Japanese geologist in 1935 and later, by Prof Kim, Bong-kyun, Seoul National University in 1967. Geology of the area consists mainly of sedimentary rocks as Cambro-Ordovician Chosen System, unconformably overlain by the Upper carboniferous-Triassic Pyeongan system and Jurassic Daedong system. The structures in the area are represented by folding and faulting which took place at end of the middle Jurassic Period. The coal seams are developed in the Sadong and Kobansan series of the Pyeongan system and Daedong system. Total coal reservers of this coal mine amount 5,750,000 metrictons.

慶南 山淸北部地域의 粘土鑛物 硏究

李裕大 부산대학교 1970 論文集 Vol.11 No.1

This report was made during the period of Feb. to Dec. 1969. The surveyed area is bounded by latitudes N35。26、-N35。29、 and longitudes E127。48、-E127。52、, covering the Sancheong Myon and Saengcho Myon, Sancheong Gun, Kyeongsang Namdo. The clay minerals are associated with a large mass of anorthosite cut by numerous basic dikes. On the 1,000,000 Scale Geological Map of Korea of 1956, this general area is shown to be an elongated mass of Cretaceous Gabber extending northerly for nearly fifty kilometers averaging 8 from 6 to 10 km width, in Precambrian Granite-gneiss terrains, however from this investigation most of the rock of the area appears to be chiefly laboratorial with some urbanite and trampoline of light greenish and greyish white color having strongly oriented gnessoid texture. The clay minerals are chemical residual products of anorthosite. These columnar sections of thirty two auger drilling hole showed following arrangement of mineralization in descending order : Surfacial soil. weathering clay zone and sand zone. The thickness of soil zone averages 0.5 meters, weathering clay zone 3 meters generally. The Surfacial soil is a reddish brown colar, has a rough feel, and is more siliceous than the underlying clay, which were transported from original weathering residual clay deposits. The Weathering clay zone is characteristically stained light brownish pink to pink and greenith chloritic specks. White kaoline(halloysite) is Ilain in this zone. The sand zone is composed of sand some fragments of the anorthosite. With increasing depth, the grain size get coarse and change to the base rock. Minute sericite is contatined in clay The relatively humid and mild chmate of the area, ideal topography and srhca free feldspar mono-mineralhc mother rock favor the forming clay minerals by podsohzation. Average percentage of constituents of 32 Holes samples are as follows Al₂O₃ 34 49%, S_(10)_(2) 46 97%, Fe₂O₃1 20% X-ray diffraction studies disclosed that the clay is composed of halloysite.