ISSN 1006-3021 CN11-3474/P
Published bimonthly started in 1979
山东半岛莱州湾滨海地区黑土湖组地层特征、时代及指示的全新世海岸带变化
  
关键词:Shandong Peninsula  Heituhu Formation  Holocene transgression  coastline transition  sea level change
基金项目:中国地质调查局地质调查项目(编号: 1212011220001; J50E018023; J50E019022; J50E019020; J50E017021; 12120114033801)
作者单位E-mail
徐建国 山东省地质调查院 xujianguo2008@126.com 
徐华 山东省地质调查院  
张涛 山东省地质调查院  
张卓 山东省地质调查院  
祁晓凡 山东省地质调查院  
纪汶龙 山东省地质调查院  
摘要点击次数: 2195
全文下载次数: 1746
摘要:
Stratigraphic Characteristics, Age and Indicated Holocene Coasta Variation of Heituhu Formation in Laizhou Bay Coastal Area,Shandong Peninsula
      Deposits of coastal limnetic facies and lagoonal facies of Heituhu Formation are commonly distributed in Laizhou Bay coastal area in the northwest of the Shandong Peninsula, and are sandwiched between an underlying flood plain deposit of the last glacial maximum and overlying middle and late Holocene transgressive strata. The distribution of Heituhu Formation was affected by ancient landform and Holocene transgression, and the age of the formation is 8.5–5.5 ka B.P.. It appeared as a result of environment effect of sea level rise from the vicinity of modern coastline 8.5 ka ago, was spread toward land, and ended at the farthest transgression line about 5.5–6.0 ka B.P. ago. The diachronism of strata indicates the transgression advanced towards the land, and the process of river deposition surpassed sea surface elevation and formed the Laizhou Bay about 5 ka B.P. ago. Studies show that the relative uplift of Ludong land mass made the roof of the Heituhu Formation higher than the modern sea level. Western Jiyang depression had greater settlement, which caused greater buried depth of Heituhu Formation along the west seashore of the Laizhou Bay. The ancient topographic slope during the generation of the formation along the south seashore of Laizhou Bay was similar to the slope nowadays, which indicates that the sea level had little change during 5.5 ka B.P. to 8.5 ka B.P.. The new research results can provide important evidence for a better understanding of the Holocene coastal variation of Shandong Peninsula.
XU Jian-guo,XU Hua,ZHANG Tao,ZHANG Zhuo,QI Xiao-fan,JI Wen-long.2018.Stratigraphic Characteristics, Age and Indicated Holocene Coasta Variation of Heituhu Formation in Laizhou Bay Coastal Area,Shandong Peninsula[J].Acta Geoscientica Sinica,39(2):133-143.
查看全文  查看/发表评论  下载PDF阅读器
Copyright©2008 All Rights Reserved
Sponsored by:
Address:: PostCode: Tel: E-mail: