인문학
사회과학
자연과학
공학
의약학
농수해양학
예술체육학
복합학
지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
초록·키워드
The Chungnam Coalfie1d is composed of the sedimentary, metamorphic and igneous rocks. The sedimentary sequence is divided into the Hajo, the Amisan, the Jogyeri, the Baegunsa and the Seongjuri Formations in ascending order. The metamorphic rocks are banded gneiss, mica shist, amphibole schist, and migmatite. The sediments are intruded by diorite, biotite granite and acidic dykes. Foldings having the axes trending NE-SW are found, and a few number of small sca1e norma1 faults are developed in southwestern part of the area. About 50 species of plant fossils have been reported from the Amisan and Baegunsa Formations. In this work some new fossil localities which supplied new materials were found. Therefore, it was able to reanalyse the known flora adding with new findings: i.e., Dicty’ophyllum exilis, Clathropteris, Hausmannia. Anomozamites minor, Pterophyllum aequale, P. brauniana,P. cfr. tietzei, Drepanozamites and Adiantites are especially abundant. Estheria, consisted of Triassic form, are a1so found from the Amisan Formation. Inasmuch as the flora found from the Chungnam Coalfield is correlatab1e with the floras of the Rhaeto-Lias iil East Asea and Europe, the geologic age of the plant fossil-bearing Amisan and Baegunsa Formations also may be placed as late Triassic-early Jurassic.
본문·목차
인공지능 문자 인식 모델을 통해 추출된 텍스트로, 일부 오타나 오류가 포함될 수 있으나 지속적으로 개선 중입니다.
오류를 발견하셨다면 해당 부분을 드래그한 후 ' 를 통해 신고해주세요.
오류를 발견하셨다면 해당 부분을 드래그한 후 ' 를 통해 신고해주세요.
최근 본 자료 전체보기
UCI(KEPA) : I410-ECN-0101-2012-450-004481557