14 research outputs found
Critical analysis On Korean Grammar textbook of 7th Curriculum
This Study intends to help 8th Korean Grammar textbook for senior high school which are preparing in recent year by criticizing 7th Korean Grammar textbook(the
rest, 7th KGT). Most high school in Korea didn't choose Korean Grammar Subject in their curriculum because students didn't care that Subject. This Study intends to attract the care of student for innovating present circumstances.
The problems of 7th KGT is divided with problems of whole aspect and problems in detail. The problems of whole aspect involved in character and form and content of 7th KGT. And the problems in detail is outlined in the order of textbook and curriculum The problems in detail are fully described in the second part of this Study. We hope to innovate the problems of this Study in the newly coming textbook And we emphasized that the innovation the 7th KGT needs more and efforts
Paleoenvironmental research of the Antarctic Core Sediment from the Antarctic Polar Front in Drake Passage, based on Diatom assemblage
드레이크 해협 시추 퇴적물 DP00-02로부터 총 21속 56종의 규조 화석이 산출되었으며 Actinocyclus actinochilus, Fragilariopsis kerguelensis, Thalassiosira rentiginosa와 Thalassiothrix longisssima 등이 전체 군집의 56%를 차지하는 우점종으로 나타났다. 규조 화석군집에 의하여 고환경을 분석해 보면 층준 144 ㎝를 경계로 남쪽으로 극전선의 유동이 있었으며 이 시기(144 ㎝)이후에는 빙기(glacial periods)에도 해빙의 영향을 매우 적게 받은 것으로 생각된다. 또한 연안종(Stephanopyxis spp., Odontella weisflogii 와 Cocconeis costata)과 재이동 규조화석(Denticulopsis hustedtii, D. dimorpha, Fragilariopsis aurica와 Thalassiosira striata) 들이 전층준에 걸쳐 계속적으로 산출되는 것은 순환 심층수(Circumpolar Deep Water)와 강한 남극 저층수(Antarctic Bottom Current)의 영향하에 있었음을 알려 준다.
56 diatom species belonging to 21 genera were identified from the core DP00-02, drilled in Drake Passage. Actinocyclus actinochilus, Fragilariopsis kerguelensis, Thalassiosira rentiginosa and Thalassiothrix longissima are the dominant species (56% of the total assemblage) in DP00-02 core sediments. The abundance pattern of diatom assemblages and paleoindicator species at the horizon of 144 ㎝ suggests the position of Antarctic Polar Front migrated to the south of the modern site. Above this horizon, we believe that there is little effect by the sea-ice even in the glacial periods. The presence of neritic species (Stephanopyxis spp, Odontella weisflogii and Cocconeis costata) and reworked species (Dentculopsis hustedtii, D. dimorpha, Fragilariopsis aurica and Thalassiosira striata) due to strong current activity, i.e. Circumpolar Deep Water and Antarctic Bottom Current.22Nkc
Radiolarians from Core Sediments (A9-EB2) in Bransfield Basin, West Antarctica
브랜스필드 동부 분지에서 얻은 길이 약 5m의 시추코어(A9-EB2)에서 채취된 44개의 시료로부터 총 41속 58종의 방산충이 감정되었으며, Antarctissa denticulata, A. longa, A. strelkovi, Lithomelissa setosa, Lithomitra lineata, Peridium longispinum와 Phormacantha hystrix 등이 우세종으로 이들이 총 산출량의 75%를 차지한다 시추코어에서 산출된 방산충 군집의 대부분은 긴 지질 시대를 나타내는 종들이며, Phaeodarian목의 Challengeriidae과에 속하는 Challengeron 속과 P개tocystis 속은 일반적으로 제4기에서 산출되므로 시추 퇴적물의 대략적인 지질 시대는 제4기(Pleistocene-Holocene)에 해당된다. 방산충 군집의 종조성은 Antarctissa strelkovi, A. denticulata, Cycladophora davisiana와 Larcopyle buetschlii등 전형적인 남극종(Circumpolar group)들이 다른 종들에 비해 상대적으로 다량 산출된다. 또한 연안 환경을 지시하는 Plectacantha oikiskos, Phomacantha hystrix와 원양 환경을 지시하는 Lithomelissa setosa가 함께 산출된다. 남극종의 산출과 Phomacantha-Plectacantha group이 Lithomelissa group의 산출량보다 많은 것으로 보아, 연구 지역은 남극순환수(Antarctic Circumpolar Current)나 벨링스하우젠해로부터 해류의 영향을 받은 연안 환경 지역이나 서쪽의 원양 환경인 웨델해로부터 브랜스필드 분지로 차가운 물이 유입되었음을 알 수 있다.
A total of 58 species of radiolarians belonging to 41 genera were identified in 44 samples from core A9-EB2 of the Bransfield Basin in the Antarctic. The radiolarian assemblages from A9-EB2 are generally very low in abundance.The dominant species are Antarctissa denticulata, A. longa, A. strelkovi, Lithomelissa setosa, Lifhomitra lineata, Peridium longispinum and Phormacantha hystrix, constituting 75% of the total assemblage. Genera Challenge개n and Protocystis belonging to family Challeneriidae, found in core A9-EB2 have been recorded in the Quaternary sediments. Therefore, the geologic age of core A9-EB2 in Bransfield Basin is regarded to be Quternary (Pleistocene-Holocene). Typical circumpolar taxa such as Antarctissa strelkovi, A. denticulata, Cycladophora davisiana and Larcopyle buetschlii are representing the influence of waters from Bellingshausen Sea and Antarctic Circumpolar Current. Plectacantha oikiskos and Phomacantha hystrix are considered as a coastal indicator. Also, low amounts of Lithomelissa setosa are related to pelagic condition and entrance of cold waters from the Western Weddell Sea into Bransfield Basin. Therefore, the core sediments in Bransfield Basin were deposited under the coastal condition mainly influenced by the waters from Bellingshausen Sea and Antarctic Circumpolar Current. but also by the water from the Western Weddell Sea of the open-water condition.33Nkciothe
Quaternary Diatom Assemblages from Sediment Core GC 98-06in the Southern Drake Passage, Antarctica
남극 드레이크해협 남부에서 채취한 코아퇴적물(GC 98-06)로부터 32개의 시료를 얻어 고생물학적으로 연구한 결과 총 23속 64종의 규조 미화석이 감정되었다. 산출된 규조 미화석의 군집 조성 중 Actinocyclus actinochilus, Coscinodiscus asteromphalus, Eucampia antarctica, Fragilariopsis kerguelensis, Thalassiosira lentiginosa, T. ritscheri와 T. anguste-lineata 등이 우점종으로 전체 군집의 73%를 차지한다. 공해환경을 지시해 주는 종들이 Bransfield Strait Water에 의해 유입된 해빙종들에 비해서 다량 산출되며, 제 4기 지시종과 제 3기의 마이오세와 플라이오세를 지시해주는 종들이 혼합되어 산출되는 것은, 퇴적물의 퇴적 당시 고환경이 주로 남극 순환수에 의해 운반된 남극저층수(Circumpolar deep water)에 의해 영향을 받아서 주변의 고기 퇴적물로부터 규조 화석들이 재이동 되었음을 의미한다.
A total of 64 species belonging to 23 genera of diatom fossils are identified from the Core GC 98-06 in the southern Drake Passage, Antarctica. The diatom assemblages are dominated by Actinocyclus actinochilus, Coscinodiscus asteromphalus, Eucampia antarctica, Fragilariopsis kerguelensis, Thalassiosira lentiginosa, T. ritscheri and T. anguste-lineata, which are about 73% of the assemblage. Open water species are more abundant than sea ice species in the diatom assemblages of the core. Fragilariopsis. kerguelensis and Thalassiosira lentiginosa are valuable indicators of the habitats. Especially, F. kerguelensis represent the influence of waters from the Antarctic Circumpolar Current. Sea ice taxa represents the influence of cold waters from Bransfield Strait Water and melt water from the sea-ice at during warm periods. The reworked diatoms such as Denticulopsis dimopha (Miocene) and D. hustedtii (Pliocene) are occurred with Quaternary species (Actinocyclus actinochilus, Fragilariopsis kerguelensis, Thalassiosira lentiginosa, and T. glacilis). The presence of reworked diatoms indicates the transportation of the older diatoms into the Drake passage from the circumference sediments, due to strong bottom current activity of Antarctic circumpolar deep water.22Nkc
