• Title/Summary/Keyword: cave research

Search Result 104, Processing Time 0.029 seconds

Scientific Significances of the Seongryu Cave (Natural Monument No. 155) (성류굴(천연기념물 제155호)의 과학적 중요성)

  • Kim, Lyoun(Ryeon);Woo, Kyung Sik;Kim, Bong Hyeon;Park, Jae Suk;Park, Hun Young;Jeong, Hae Jeong;Lee, Jong Hee
    • Korean Journal of Heritage: History & Science
    • /
    • v.43 no.1
    • /
    • pp.236-259
    • /
    • 2010
  • The examination of sediment distribution in Seongryu Cave shows existence of rocks contrasting with Joseon Supergroup contrary to existing knowledge. Contrasting especially with the Taeback Group, Daegi Formation, Hwajeol Formation, and Dongjeom Formation has been observed. Unlike Taeback area where Dumugol Formation and Makgol Formation are observed on top of Dongjeom Formation, the rocks of this area are not clear in its separation between the two, so that it was named Geunnam Formation. Seongryu Cave has been developed in this Ordovician Geunnam Formation of the Joseon Supergroup. The cave, mostly horizontal, runs in the NE-SW direction, and contains three lakes. The main passage and branches are about 330 m and 540 m, respectively, making the total length of the cave about 870 m (show cave area = 270 m). Through underwater examination, about 85 m-long underwater passage was newly discovered. Various speleothem such as soda straw, stalactite, stalagmite, column, flowstone, rimston, cave shield, cave coral, curtain, bacon sheet, cave pearl, cave flower, helictite and calcite raft can be found in the cave. There are sections with constant flow of cavern water, but the majority of cavern water in the cave come from the ceiling. The most important discovery in this study is the presence of various speleothem in the submerged part of cave passages. Traces of corrosion and/or erosion can be observed in the speleothem in the submerge passage.

Paleoclimatic Implication of Cave Speleothems in the Submerged Parts of the Seongnyu Cave, Republic of Korea (성류굴 내 호수구간의 수중통로에서 발견되는 동굴생성물의 고기후적 의미)

  • Kim, Ryeon;Woo, Kyung-Sik;Kim, Bong-Hyeon;Park, Jae-Suk;Park, Hun-Young;Jeong, Hee-Jeong;Lee, Jong-Hee
    • The Korean Journal of Quaternary Research
    • /
    • v.24 no.1
    • /
    • pp.11-24
    • /
    • 2010
  • Seongnyu Cave have developed along the NE-SW direction in carbonate rocks of the Joseon Supergroup. The cave mostly shows horizontal passages and contains three lakes. The main passage is about 330 m long with 540 m-long branches, thus the total length of the cave is about 870 m. Through cave diving, about 85 m-long new passages were discovered. Numerous speleothems such as soda straws, stalactites, stalagmites, columns, flowstones, rimstones, cave shields, cave corals, curtains (and bacon sheets), cave pearls, cave flowers, helictites and calcite rafts can be found in the cave. Especially, some speleothems which were believed to have grown in the past were discovered in the submerged passage, and a few stalactites, stalagmites, flowstones and columns were eroded (or corroded) by the cave stream that flowed on the floor. Because these speleothems only grow in subaerial environments within limestone caves, it appears that they grew when there was no lake in the cave and became submerged as the lake level rose in the cave. The presence of these speleothems in the lakes indicate that they only grew during glacial periods when sea-level was lower. Therefore, detailed investigation of these speleothems will provide invaluable information on paleoclimatic evolution around the Korean peninsula in the future.

  • PDF

China's Cave Resources Distribution and Cave Research (중국의 동굴 자원과 동굴 연구)

  • Jin, Shi-Zhu
    • Journal of the Speleological Society of Korea
    • /
    • no.95
    • /
    • pp.23-33
    • /
    • 2009
  • This study analyzed the distribution of China's caves and cave resources in Research. The results are as follows: First, China's melting karst caves are mainly distributed in southwest widely distributed. Recently in Beijing and other northern areas found in many caves. First, China's Karst caves are mainly distributed in karst-flung southwest. Recently in Beijing and other northern areas found in many caves. Second, although China is widespread volcanic landscapes, but most of the extinct volcano, the lava caves less so. Are mainly distributed in Hainan Island, north-east there are some distribution. Third, China's recent development and evolution of the cave, analysis of the paleo-environment records of cave stalagmites, cave biology, cave tourism development, environmental aspects of cave research more active.

Characteristics and Types of Caves in South Korea

  • Hong, Sy-Hwan
    • Journal of the speleological society of Korea
    • /
    • v.42 no.2
    • /
    • pp.1-6
    • /
    • 1995
  • The research of caves widely deals with geomorphology, meteology, geology, biology, archaeology and physiochemistry. Most famous caves in Korea are in Dongrong Cave in Yongbyun-Goon in 1929, Sungru Cave in Uljin in 1960s. Lava caves were developed as Gymrung Sa Cave, Manjang Cave and Hupje Cave in Cheju Island. Limestone caves, Gosi Cave, Gosu Cave, Nodong Cave and Chundong Cave, were developed for the commercial purposes. Visiting and researching caves are active in Korea. Caves will more be commercialized than before.(omitted)

  • PDF

A Study on the Classification Distribution Characteristic of Tour Cave in Northeastern Asia

  • Hong, Choong-Real
    • Journal of the Speleological Society of Korea
    • /
    • no.69
    • /
    • pp.33-47
    • /
    • 2005
  • The purpose of this study is to grasp the distribution characteristic of tour cave in northeastern Asia. It is examined to use internet homepage to get the status of tour cave in northeastern Asia. First, the total of tour cave is 116 and, in type limestone cave is extremely many. Second, the distribution character by nation has been shown China, Japan and South Korea in sequence. In the type tour cave, China, South Korea and North Korea are more popular with limestone cave while Japan, Taiwan, and Hong Kong have more marine caves. This study mainly relies on the research of internet homepage. Therefore, after this, activated research about tour cave is needed through comparison and analysis with more concrete statistical data and tourist behaviour by nations

Geochemical Characteristics of Baengnyongdonggul Cave Water, Pyeongchang, Gangwon State (강원특별자치도 평창 백룡동굴 동굴수의 지구화학적 특성)

  • Youngyun Park;Lyoun Kim;Jonghee Lee;Mun Bok Choi
    • The Journal of Engineering Geology
    • /
    • v.33 no.3
    • /
    • pp.413-426
    • /
    • 2023
  • This study presents the geochemical characteristics of cave water to evaluate its origin and flow path. From June 2022 to may 2023, river water was collected at two sites (WE1 and WE2) in the Donggang River around Baengnyongdonggul Cave, and cave water was collected at four sites (WE3 to WE6) inside Baengnyongdonggul Cave. Water samples were analyzed for major dissolved components. Both river and cave waters were classified as Ca-HCO3 type. All cave water samples were supersaturated in carbonate minerals, suggesting that carbonate minerals would precipitate within the cave. Due to differences in the source of cave water and the degree of water-rock interaction, the geochemical characteristics of water from sites where the flow of cave water is observed (WE3 and WE6) and rimstone pools (WE4 and WE5) could be clearly distinguished. The cave water at WE6 flows in from the Donggang River, then passes through WE3 and flows back out into the Donggang River. The cave water at WE4 and WE5 is supplied from precipitation, but the flow path of cave water at WE4 and WE5 is different.

Variation of Air Temperature Inside Carbonate Area Caves (석회암 지역에 분포하는 동굴의 내부 온도 변동 특성)

  • Kim, Lyoun;Park, Youngyun;Lee, Jonghee;Choi, Jaehun;Jung, Qyusung;Kim, Jungtae;Kim, Insu
    • Korean Journal of Heritage: History & Science
    • /
    • v.53 no.1
    • /
    • pp.52-63
    • /
    • 2020
  • This study was conducted in order to evaluate the characteristics of air temperature fluctuation inside the Daegeumgul, Ondaldonggul, and Seongnyugul Caves, which are the most representative limestone caves in Korea, and also to assess the effects of air temperature on cave temperature. Temperature was measured hourly at three sites in Daegeumgul, Ondaldonggul, and Seongnyugul Caves from April 13 to June 25, 2019. Additionally, air temperature data for the areas around the caves was provided by the Meteorological Administration. Using this collected data, the basic statistical measure of fluctuation characteristics over time was ascertained, and time series analyses were performed. Wide variation of temperature was exhibited in the order of the cave entrance, the cave water inflow point, and the midpoint. Cave temperature was observed to increase gradually during the study period. There was a vast range in temperature at the Daegeumgul station located approximately 150 m outside the cave, but it remained nearly constant beyond the midpoint. Although the effect of air temperature was not significant due to the influence of visitors, the effect of air temperature on cave temperature gradually decreased from the entrance to the interior. At Ondaldonggul, there was a wide range in temperature recorded at the entrance due to the influence of air temperature, but it stayed almost constant in the interior. However, at the site where cave water flows into the cave, temperature was influenced by the cave water temperature. At Seongnyugul, there was a distinct fluctuation in temperature recorded at the cave entrance, while the middle of the cave remained nearly constant. Temperature fluctuated due to the air temperature at the entrance, while at the middle of the cave, measurements were expected to be affected to a greater extent by the lake water temperature than by the air temperature. However, this pattern was not observed. According to the time series analysis results, in all caves, fluctuations of air temperature affected cave temperature after approximately one hour. Cave size and structure, water presence, the entrance's size and shape, air flow, and visitor patterns can all influence cave temperature. Therefore, consideration of these factors is very important in the pursuit to clearly understand cave temperature characteristics.

The Role and Necessity of Rescue Group from Natural Cave Research (자연동굴 탐사에서 구조대의 역할과 필요성)

  • Yoon, Jung-Mo
    • Journal of the Speleological Society of Korea
    • /
    • no.81
    • /
    • pp.47-54
    • /
    • 2007
  • The role of the rescue party only function of accident hour relief activity it knows against the technique and an immediacy of Hum who burns executes an education and training and the accident it will be able to occur in advance and Hum activity hour which burns it prevents the place where it reduces it contributes a lot role is the importance is a possibility of saying that compared to it grows more. It must establish the cave structure commission inside Korean cave academic society and it must cooperate with the instance of the foreign nation together and with each other it must improve a cave structure setup and equipment and the countermeasure which is appropriate and prevention of accident inside the cave and accident occurrence hour it must consider feed with the fact that it must become.

Environmental Variation in Gossi and Gosu Caves, Korea (천연기념물 고씨굴과 고수동굴의 환경변화에 대한 연구)

  • Choi, Don Won;Kim, Lyeon
    • Korean Journal of Heritage: History & Science
    • /
    • v.42 no.1
    • /
    • pp.158-186
    • /
    • 2009
  • The Gossi Cave, Natural Monument 219, extends horizontally for 3,388m with 215m elevation. 620m of the horizontal cave length was opened to the public in 1974. The Gosu Cave, Natural Monument 256, also was opened the public for only 685m of the horizontal cave length, 1,700m, in 1976 in order to preserve its ecological cave environment. The surface of the speleothems in two caves have been turning black due to pollutants after the caves were opened to the public. The degrees of temperature, humidity and partial pressure of carbon dioxide in the caves were related the seasonal variation. Specially, the value of partial pressure of carbon dioxide($CO_2$) in the cave higher in the summer than any other seasons. The partial pressure of $CO_2$ continues to build in the summer because of exceed the self-purification limit in the caves. The value of $CO_2$ variation in the caves was mainly controlled by the amount of visitors. As a result, we have to controlled the amount of visitors to preserve the cave environment.

Digital Restoration of Pulguksa Temple and Sokkuram based on Virtual Reality -Focused on the CAVE of Virtual Reality System (가상현실기술을 이용한 불국사와 석굴암의 디지털 복원 -가상현실 시스템 CAVE를 중심으로)

  • 박소연
    • Archives of design research
    • /
    • v.16 no.2
    • /
    • pp.67-76
    • /
    • 2003
  • Today, computer graphics have moved into spotlight within many related fields. The use of computer graphics in many fields as well as in design is now universalized. More than ever, those fields which utilize virtual reality are being vigorously researched and are rapidly progressing. Many advanced countries are obtaining positive results, allowing the world to learn about their culture and history by using virtual reality techniques for the restoration of cultural property. Above all, the West has utilized the diversity of the CAVE system which could best express the artificial system among virtual reality systems. However, in Korea this technology remains in its early stages of development. Moreover, the field, digital restoration of cultural property, which will be discussed in this study, hasn't yet been explored. Accordingly, this study presents the way of digitally restoring cultural property based on the CAVE through the empirical research and suggests the significance and possibility of digitally restoring cultural properly in the CAVE system. For them, this study processes the digitally restoring of Pulguksa Temple and Sokkuram and refers to the limitation and the future study following the investigation of CAVE and the introduction of applicable examples in abroad.

  • PDF