Depositional environments, architecture, and controls of early cretaceous non-marine successions in the northwestern part of Kyongsang Basin, Korea SCIE SCOPUS
DC Field | Value | Language |
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dc.contributor.author | Jo, HR | - |
dc.date.accessioned | 2020-04-20T15:55:39Z | - |
dc.date.available | 2020-04-20T15:55:39Z | - |
dc.date.created | 2020-01-28 | - |
dc.date.issued | 2003-10-01 | - |
dc.identifier.issn | 0037-0738 | - |
dc.identifier.uri | https://sciwatch.kiost.ac.kr/handle/2020.kiost/5438 | - |
dc.description.abstract | In the northwestern part of Kyongsang Basin, southeast Korea, non-marine successions of interbedded sandstone and mudstone are divided into successive stratigraphic units on the basis of facies assemblages and sandstone architecture. Parts of the successions (Sinpyong-Anpyong and Jotap units), formed in southward- or southeastward-draining fluvial systems, are documented in detail in terms of macroform-scale to stratigraphic-level architecture for the assessment of fluvial styles and evolution of non-marine depositional environments. The Sinpyong-Anpyong unit consists of thick sandstone bodies (2-47 m thick), thin sandstone bodies (generally < 2 m thick), and mudstone-dominated bodies. The thick sandstone bodies are characterized by superposition of numerous bars and channels, indicative of braided-channel systems. The channels are estimated at a few to 10 m deep and 9 m to tens of meters wide. The thin sandstone bodies comprise planar beds of massive, horizontally stratified, and-trough cross-stratified sandstones, interpreted as sand sheets and splays. The mudstone-dominated bodies largely consist of purple siltstone in the northern (proximal) part and gray mudstone in the southern (distal) part, representing well-drained floodplains and poorly drained floodplains with local shallow lakes, respectively. In the basal and uppermost parts of Sinpyong-Anpyong unit, the distal poorly drained facies (gray mudstone) expands to the northern basin margin. The Jotap unit, overlying the Sinpyong-Anpyong unit, comprises thick sandstone bodies (2-10 m thick), interbedded sandstone/siltstone bodies, and siltstone-dominated bodies. The thick sandstone bodies are dominated by the deposits of small bars and dunes with common lenticular beds of purple siltstone and internal scour surfaces, suggestive of bedform-dominated channels with ephemeral discharges. The channels are estimated at generally a few meters in depth and a few tens to hundreds of meters in width. The interbedded sandstone/siltstone bodies comprise thin, sheet-like and lenticular sandstone beds (< 2 m thick) interbedded with purple siltstone, interpreted as channel-proximal floodplains where sand was frequently deposited as sand sheets and splays, levees, and crevasse-channel fills. The siltstone-dominated bodies consist mostly of purple siltstone with subordinate thin sandstone beds, representing channel-distal, well-drained floodplains. Along with the marked change in fluvial styles, the successions show systematic variations in the proportion and connectedness of channel sandstone bodies and the distribution of floodplain/lake facies. The basal and uppermost parts of the Sinpyong-Anpyong unit are characterized by the sourceward expansion of distal, poorly drained floodplain/shallow lake facies and the low proportion and connectedness of channel bodies. Following these gray mudstone-dominated sequences, the middle part of Sinpyong-Anpyong unit and Jotap unit show increases in the proportion, connectedness, and grain size of channel bodies and basinward expansion of proximal, well-drained floodplain facies. Such a stratigraphic architecture can be attributed to the fluctuations in the ratio of accommodation space/sediment supply, regulated by repeated basin subsidence. (C) 2003 Elsevier Science B.V. All rights reserved. | - |
dc.description.uri | 1 | - |
dc.language | English | - |
dc.publisher | ELSEVIER SCIENCE BV | - |
dc.subject | STAGE PLANE BEDS | - |
dc.subject | SEQUENCE STRATIGRAPHY | - |
dc.subject | NORTHERN PAKISTAN | - |
dc.subject | FLUVIATILE SEDIMENTATION | - |
dc.subject | SOUTHEASTERN KOREA | - |
dc.subject | CONTINENTAL STRATA | - |
dc.subject | FORELAND BASIN | - |
dc.subject | BRAIDED-RIVER | - |
dc.subject | PULL-APART | - |
dc.subject | EVOLUTION | - |
dc.title | Depositional environments, architecture, and controls of early cretaceous non-marine successions in the northwestern part of Kyongsang Basin, Korea | - |
dc.type | Article | - |
dc.citation.endPage | 294 | - |
dc.citation.startPage | 269 | - |
dc.citation.title | SEDIMENTARY GEOLOGY | - |
dc.citation.volume | 161 | - |
dc.citation.number | 3-4 | - |
dc.contributor.alternativeName | 조형래 | - |
dc.identifier.bibliographicCitation | SEDIMENTARY GEOLOGY, v.161, no.3-4, pp.269 - 294 | - |
dc.identifier.doi | 10.1016/S0037-0738(03)00130-1 | - |
dc.identifier.scopusid | 2-s2.0-0141837214 | - |
dc.identifier.wosid | 000187496900006 | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.subject.keywordPlus | STAGE PLANE BEDS | - |
dc.subject.keywordPlus | SEQUENCE STRATIGRAPHY | - |
dc.subject.keywordPlus | NORTHERN PAKISTAN | - |
dc.subject.keywordPlus | FLUVIATILE SEDIMENTATION | - |
dc.subject.keywordPlus | SOUTHEASTERN KOREA | - |
dc.subject.keywordPlus | CONTINENTAL STRATA | - |
dc.subject.keywordPlus | FORELAND BASIN | - |
dc.subject.keywordPlus | BRAIDED-RIVER | - |
dc.subject.keywordPlus | PULL-APART | - |
dc.subject.keywordPlus | EVOLUTION | - |
dc.subject.keywordAuthor | fluvial sequences | - |
dc.subject.keywordAuthor | architectural analysis | - |
dc.subject.keywordAuthor | stratigraphic architecture | - |
dc.subject.keywordAuthor | tectonic control | - |
dc.relation.journalWebOfScienceCategory | Geology | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Geology | - |