인문학
사회과학
자연과학
공학
의약학
농수해양학
예술체육학
복합학
DBpia AI
AI 에이전트
AI 아이디어
AI 리더
AI 뷰어
Citeasy
크롬 서지관리 다운로드
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 Baruungoyot and Nemegt formations interfinger through a minimum of 23 meters of stratigraphic section at Nemegt. This interfingering stratigraphic interval comprises the lower one-half of the Nemegt Formation's stratigraphic exposure in the area. This interfingering formational contact, as well as an upsection increase in conglomeratic sediments in the Nemegt Formation are evidence for progradation of the Nemegt clastics. We infer that during Nemegt "time," uplift in the paleo-Altan Nemegt source area increased both sediment supply and the depositional gradient, which, in tum, decreased accommodation. Decreased accommodation resulted in a preservational bias for channel-fill and sheet flood deposits. During progradation, a multi-kilometer-wide Nemegt meanderbelt episodically shifted its position to the southeast, and occasionally back-stepped to the northwest, thus leaving a succession of interfingering Baruungoyot and Nemegt tongues in the stratigraphic record. The meanderbelt hosted medium-size channels (~6 m deep and 75 m wide) that flowed to the southwest. Southeast of the meanderbelt, seasonally wet-dry distal-basin environments of the Baruungoyot Formation continued to exist during the time represented by the interfingering interval. The interfingering interval is the most vertebrate-fossil rich part of the stratigraphic section in this area (Nemegt meanderbelt tongues in particular). Rich fossil OCCUITences in this interfingering interval indicate that many of the Nemegt and Baruungoyot vertebrates from this interval co-existed.
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-0101-2010-457-002352329
