• Title/Summary/Keyword: dinosaur

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Physical Properties of Sedimentary Rocks containing Dinosaur Trace Fossils in the Haenam: A Relationship with Chert Content (해남 공룡화석 지 퇴적암의 물리적 성질: 쳐트 함량과의 관계)

  • 조현구;김수진;장세정
    • Journal of the Mineralogical Society of Korea
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    • v.15 no.2
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    • pp.132-139
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    • 2002
  • The physical properties of Uhangri sedimentary rocks were investigated to provide the conservation strategy of Dinosaur trace fossil in the Haenam. The porosity, void ratio, dry density, water content, and degree of saturation were calculated according to the proper laboratory experiments for 9 sedimentary specimens. The flexural strength (or modulus of rupture) and thermal expansion coefficient were measured using the universal testing machine and dilatometer, respectively. The Uhangri sedimentary rocks have very low porosity, void ratio, and water content. The flexural strength of shales are 24.16~42.84, and those of sandstones are 16.34~ $43.52N/mm^2$, which are much weaker than common sedimentary rocks. The very low flexural strength of sedimentary rocks despite very low porosity, is ascribed to fine fissures in the rocks. The thermal expansion coefficient of rocks were $14.7~21.3\Times10^{-6 }$, which are 2~2.5 times as high as alumina and about 10 times as high as talc. As the content of chert in the sandstone increases, the porosity, void ratio, and water content increase, while the dry density and degree of saturation decrease. The chert-bearing sandstone have higher porosity and thermal expansion coefficient, and lower flexural strength compared to those free of chert.

Development of a Program for Topophilia Geological Fieldwork Based on Science Field Study Area in Youngdong, Chungcheongbuk-do (충북 영동 지역의 과학학습장을 활용한 토포필리아 야외지질학습 프로그램 개발)

  • Yoon, Ma-Byong;Nam, Kye-Soo;Baek, Je-Eun;Bong, Phil-Hun;Kim, Yu-Young
    • Journal of the Korean Society of Earth Science Education
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    • v.10 no.1
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    • pp.76-89
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    • 2017
  • The purpose of this study is to develop a science field study area using Geumgang(Geum River), fossil origins and various geological resources in Youngdong area of Chungcheongbuk-do as educational resources; and utilize them to develop an education program to cultivate earth science and topophilia. The Youngdong sedimentary basin (Cretaceous period) has a well-developed outcrop along the Geumgang and it is therefore easy to find various geological structures, plant fossils, and dinosaur fossils. Also, it has a distinct sedimentary structure, such as mud cracks, ripple marks and cross-bedding. Science field study area(6 observation sites) were developed based on school curriculum, textbook analysis, and professional earth science education panel discussion to create a convergence education program. The result of validating the developed program showed that all the items were satisfactory ($CVR{\geq}0.88$) in the test categories. The science field study teaching-learning model was applied to actual classes. The evaluation result for class satisfaction was positive, scoring Rickert scale 4.18. The result of observation about the outdoor classroom process in the science field study area revealed that students were able to form a new image of the beautiful scenery of the Geumgang. Also, the students could gain a new understanding, concept and value of various geological objects (sandy beach, stepping-stones, dinosaur footprint fossils, sedimentary formation), which naturally allowed them to form topophilia.

Touristic Aspects of Geological Heritages -Cretaceous Dinosaur Fossil Sites- (지질유산의 관광자원으로서의 특성과 활용 -국내 백악기 공룡화석산지를 중심으로-)

  • Paik, In Sung;Kim, Sook Ju;Huh, Min;Lee, Soo Jae;Kim, Hyun Joo;Lim, Jong Deok
    • Korean Journal of Heritage: History & Science
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    • v.43 no.1
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    • pp.4-27
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    • 2010
  • In this article, concepts, types, and aspects of geological heritage with increasing interests as utilization as tourist attractions domestically and internationally are introduced, and the characteristics of the interpretive facilities for geological heritages in western Australia, one of the most famous geotourism areas, are considered. Based on this, the potential geotourism for the Korean Cretaceous geological heritages including dinosaur fossil sites is discussed in diverse aspects including academic values, academic and tourism infrastructures, characteristics of geotourists, systematic devices for conservation of geological heritage, economic value, and sustainability as tourist attractions. Although the Korean Cretaceous geosites are not quite competent in their scale or diversity when compared to world-class geosites, convenient access, world-class unique geographical characteristics of each geosites, and relatively cheaper travelling expenses seems to be able to give the geotourism of the South Korean Cretaceous geosites a competitive edge, attractive for international and domestic tourists seeking unique experience of 'Age of dinosaurs' for short periods with easy access from metropolitan areas and low costs. Likewise, the development of geotourism for the Korean Cretaceous geosites can revitalize the geotourism industry in South Korea, contributing to the growth in job opportunities, including students majoring in geological sciences at University.

Scientific Exploration of the Footprints in the Folktale: The Footprints of Munhojang, Changnyeong-gun, Gyeongsangnam-do, Korea (설화 속 발자국에 대한 과학적 탐색: 경남 창녕군 문호장 발자국)

  • Jung, Seung-Ho;Kim, TaeHyeong;Ahn, Jaehong
    • The Journal of the Korea Contents Association
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    • v.21 no.8
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    • pp.49-59
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    • 2021
  • Since ancient times, legends and tales have been handed down with a spirituality, shamanistic meaning, and imagination. Among many tales about people and animal footprints that are handed down in various parts of Korea, Changnyeong's 'Munhojang Footprint' is the first case in which the physical evidence(footprints) that the main character has left was identified as a dinosaur footprint. In this study, we performed a scientific analysis based on the basic data collection, distribution pattern of 'Munhojang Footprint', three-dimensional digital recording and visualization, as well as case analysis and humanitic review of footprints in tales and legends. The Munhojang Footprints has long been known as human footprints left in the natural rock due to its shape and preservation status. A new analysis that the Munhojang footprints (composed of 13 footprints) are dinosaur tracks shows social perceptions of the ancient people, characterized by the fear of supernatural beings and the limits of scientific interpretation. Through this scientific and humanistic exploration of Munhojang Footprint that are passed down from generation to generation as legends, pray for peace and well-being of the village through rituals and rituals every year, and have been preserved and managed as practical evidence, it is expected that traditional culture and natural heritage will be linked and mutual value will be enhanced.

New Excavation Method and its Applications for Fossil Footprints (발자국 화석의 새로운 발굴 방법 및 적용)

  • Kim, Kyung Soo
    • Journal of the Korean earth science society
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    • v.37 no.3
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    • pp.143-161
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    • 2016
  • This study is concerned with new excavation methods and techniques for fossil tracks/trackways and its application. Unlike the body fossils such as dinosaur skeletons and isolated bones, the Mesozoic vertebrate tracks and trackways including dinosaurs, pterosaurs, and birds are usually discovered in long-distance trackways. The trackways are also found in a large area of the bedding plane and preserved as two-dimensional and flat characteristic. New excavation methods for fossil footprints reflecting these characteristics have been designed to excavate fossil footprints preserved on wide bedding plane and applied to five excavation fossil tracksites. As a result of its application, the tracks and trackways of dinosaur, pterosaur, and bird were successfully excavated. And based on various excavation cases, the step-by-step process and details of the fossil footprints excavation was proposed.

Geophysical and Geological Investigation for Selecting a Dinosaur Museum Site in the Dinosaur Egg Fossil Area, Gojeong-ri, Hwasung, Gyeonggi Province (경기도 화성 고정리 공룡알 화석지 공룡생태박물관 부지선정을 위한 지구물리 및 지질조사)

  • Kim, Han-Joon;Jeong, Gap-Sik;Yi, Bo-Yeon;Jo, Churl-Hyun;Lee, Kwang-Bae;Lee, Jun-Ho;Jou, Hyeong-Tae;Lee, Gwang-Hoon
    • Geophysics and Geophysical Exploration
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    • v.13 no.4
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    • pp.357-363
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    • 2010
  • In this study, we investigated the geologic structure of the basement and overlying sediments of the construction site of the dinosaur egg fossil museum in Hwasung, Gyeonggi Province through refraction seismology, drilling, and downward seismic velocity measurements in the drill holes. The construction site ($350{\times}750\;m^2$) is located in the reclaimed area south of Sihwa Lake, Gojeong-ri. About 6,950 m of seismic refraction data consisting of 11 lines were acquired using a sledge hammer source. Drilling to the basement was performed at five sites. Sediment samples from drilling were analysed for grain-size distribution and age dating. At two drill holes, seismic velocity was measured with depth using a hammer as a seismic source. The geological structure of the study area consists of, from top to bottom, a tidal flat layer (5 ~ 12 m thick), a weathered soil layer (2 ~ 8 m thick), and the basement. The basement is interpreted as Cretaceous sedimentary rocks that tend to be shallow eastward. The volume of the tidal flat sediments and weathered soil in the study area is estimated as $1.4{\times}10^6\;m^3$, weighing $3.5{\times}10^6$ tons. The rate of sea level rise since 8,000 yrs BP is estimated to be 0.1 ~ 0.15 cm/yr.

Study for the standardization of Os Draconis and comparison composition before and after using processed method on Os Draconis (용골(龍骨)(부용치)(附龍齒)의 품질표준(品質標準) 및 포제전후의 성분비교(成分比較))

  • Lee Jang-Cheon
    • Herbal Formula Science
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    • v.11 no.1
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    • pp.171-195
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    • 2003
  • Objectives: This experimental study has been done to compare the Os Draconis composition before and after using processing method. Os Draconis has a quality for calming the liver meridian function and relaxation the mind. Methods: I studied the Os Draconis and processed Os Draconis by vinegar to compare the compositions and its' character. Results: Os Draconis is not a dinosaur's bone fossil but a mammal's bone fossil which has a Calcite mineral, an Apatite mineral, $SiO_2\;Al_2$ O, etc. Os Draconis contains a main ingredients CaO>50.00%. Processed Os Draconis which is heated and soaked in vinegar changes to weak condition Conclusion: Os Draconis is supposed to be a mammal's bone fossil. Some Os Draconis has a radioactive substance like a U, Th so we pay heed to deal with it in a medical clinic.

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A Study on the CI Development of the local government -centered on Haenam county case- (자치단체 CI에 관한 연구 -해남군 CI 개발 사례를 중심으로-)

  • 송진희
    • Archives of design research
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    • v.13 no.1
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    • pp.19-28
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    • 2000
  • This research has focused on CI development by regioni government, with emphasis on CI case study of Haenan Chonnam Province. Haenam is located at the most sourthe part of Chonnam Province and famous as a starting point ( Namdo Tour and dinosaur foot traces at Woohangri. CI Ie Haenam county was studied and developed to promote tn pride and love for Haenam and to enhance the uniqu1 image of Haenam to the tourists.

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Characteristics of Bird Community in Sihwa South Grassland, Korea (시화호 남측 초지지역의 조류 군집 특성)

  • Park, Chi-Young;Kim, Ho-Joon;Paik, In-Hwan;Yu, Jae-Pyoung;Paik, Woon-Kee;Lee, Joon-Woo
    • Korean Journal of Environment and Ecology
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    • v.29 no.4
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    • pp.516-524
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    • 2015
  • This study was characteristics of bird community conducted to from 2009 to 2010 in Sihwa South Grassland, Gyeonggi-do, Korea. Total 49 species were recorded and the sum of maximum counts was 2,258 individuals. Species diversity was 2.21 and the species richness was 6.22. In South Reclaimed, we recorded maximum score of 38 species. and maximum score of 1,083 individuals in Dinosaur Egg Fossil. Comparison between areas were use average species diversity and species richness. Mostly Dinosaur Egg Fossil and South Reclaimed were higher than Sihwa Lake upstream. As a results of the ANOVA test, all areas were different. also, Sihwa Lake upstream only difference was that the bird community. In the season there was a significant difference between the Number of species and species richness. Number of species and species richness were significant differences depending on the season. but individuals and species diversity were no significant differences. In the year there was a no significant difference between the Number of species and individuals. but species diversity and species richness were significant differences. As a result, Between areas was different patterns of bird communities. but including water space Dinosaur Egg Fossil and South Reclaimed were showed a similar bird communities and bird diversity was higher. In the season, the resident was using of consistent patterns. but, There were differences depending on the migratory patterns of populations. In the year, every year was communities of a similar patterns. Sihwa South Grassland is of the high conservation value ecosystem as the only domestic. Propose an opinion for maintaining biodiversity when planning future habitat composition and environmental decrease.

Successful Management and Operating System of a UNESCO World Heritage Site - A Case Study on the Wadi Al-Hitan of Egypt - (유네스코 세계자연유산의 성공적인 관리와 운영체계 - 『이집트 Wadi Al-Hitan』의 사례 -)

  • Lim, Jong Deock
    • Korean Journal of Heritage: History & Science
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    • v.44 no.1
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    • pp.106-121
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    • 2011
  • The number of World Natural Heritage Sites is smaller than that of World Cultural Heritage Sites. As of 2010, the total number of natural sites was 180, which is less than 1/3 of all cultural sites. The reason why the number of natural sites is smaller can be attributed to the evaluating criteria of OUV(outstanding universal value). Only 9 fossil related sites were designated as World Heritage Sites among 180 Natural Sites. This study compares their OUVs including the academic value and characteristics of the 9 World Heritage Sites to provide data and reference for KCDC(Korean Cretaceous Dinosaur Coast) to apply as a World Natural Heritage Site. This study was carried out to obtain information and data on the Wadi Al-Hitan of Egypt which was designated as a World Natural Heritage Site. The study includes field investigation for whale fossils, interviews of site paleontologists and staff, and inspections of facilities. Three factors can likely be attributed to its successful management and operating system. First, there is a system for comprehensive research and a monitoring plan. Secondly, experts have been recruited and hired and professional training for staff members has been done properly. Finally, the Wadi Al-Hitan has developed local resources with specialized techniques for conservation and construction design, which matched well with whale fossils and the environment at the site. The Wadi Al-Hitan put a master plan into practice and achieved goals for action plans. To designate a future World Natural Heritage Site in Korea, it is important to be recognized by international experts including IUCN specialists as the best in one's field with OUV. Full-time regular-status employees for a research position are necessary from the preparation stage for the UNESCO World Heritage Site. Local government and related organizations must do their best to control monitoring plans and to improve academic value after the UNESCO World Heritage Site designation. As we experienced during the designation process of Jeju Volcanic Island and Lava Tubes as the first Korean World Natural Heritage Site, participation by various scholars and specialists need to be in harmony with active endeavors from local governments and NGOs.