Cyclic sedimentation across a middle ordovician carbonate ramp (Duwibong Formation), Korea
SCIE
SCOPUS
Cited 22 time in
WEB OF SCIENCE
Cited 24 time in
Scopus
-
Title
- Cyclic sedimentation across a middle ordovician carbonate ramp (Duwibong Formation), Korea
-
Author(s)
- Lee, Y.I.; Hyeong, K.; Yoo, C.M.
- KIOST Author(s)
- Yoo, Chan Min(유찬민)
-
Alternative Author(s)
- 유찬민
-
Publication Year
- 2001
-
Abstract
- The Middle Ordovician Duwibong Formation (about 100 m thick), Korea, comprises various lithotypes deposited across a carbonate ramp. Their stacking patterns constitute several kinds of meter-scale, shallowing-upward carbonate cycles. Lithofacies associations are grouped into four depositional facies: deep- to mid-ramp, shoal-complex, lagoonal, and tidal-flat facies. These facies are composed of distinctive depositional cycles: deep subtidal, shallow subtidal, restricted marine, and peritidal cycles, respectively. The subtidal cycles are capped by subtidal lithofacies and indicate incomplete shallowing to the peritidal zone. The restricted marine and peritidal cycles are capped by tidal flat lithofacies and show evidence of subaerial exposure. These cycles were formed by higher frequency sea-level fluctuations with durations of 120 ky (fifth order), which were superimposed on the longer term sea-level events, and by sediment redistribution by storm-induced currents and waves. The stratigraphic succession of the Duwibong Formation represents a general regressive trend. The vertical facies change records the transition from a deep- to mid-ramp to shoal, to lagoon, into a peritidal zone. The depositional system of the Duwibong Formation was influenced by frequent storms, especially on the deep ramp to mid-ramp seaward of ooid shoals. The storm deposits comprise about 20% of the Duwibong sequence.
-
ISSN
- 0172-9179
-
URI
- https://sciwatch.kiost.ac.kr/handle/2020.kiost/5928
-
Bibliographic Citation
- Facies, no.44, pp.61 - 74, 2001
-
Keywords
- Carbonate ramp; Cyclic sedimentation; Korea; Ordovician; Storm deposits
-
Type
- Article
-
Language
- English
-
Document Type
- Article
- Files in This Item:
-
There are no files associated with this item.
Items in ScienceWatch@KIOST are protected by copyright, with all rights reserved, unless otherwise indicated.