浙江大学学报（理学版）Issue(1)：57-63,7.DOI:10.3785/j.issn.1008-9497.2016.01.010
徐州-淮北地区张渠组层序地层格架
Sequence stratigraphic framework of Zhangqu Formation in Xuzhou-Huaibei area
摘要
Abstract
Neoproterozoic stratigraphic correlation is still difficult due to the lack of the fossil record .Xuzhou‐Huai‐bei is the key region to bridging the stratigraphic correlation of Neoproterozoic in China's northern and southern re‐gion ,thus Zhangqu Formation is the key position of Neoproterozoic stratigraphic correlation .Therefore ,it is neces‐sary to establish the sequence stratigraphic framework of Zhangqu Formation .This study is based on the identifica‐tion of the outcrop interface and the research of the regularly vertical stacking patterns of the meter‐scale cyclic se‐quences ,and uses the important events of the sedimentary processes ,namely the maximum flooding events ,storm sedimentary events and molar‐tooth carbonate events .Combing with the Fischer diagram and the transgression‐re‐gression by water depth correction of sea level change curves ,the isochronous stratigraphic division and correlation of the Zhangqu formation are implemented and achieved .Zhangqu Formation is divided into six third‐order cyclic se‐quences ,and the sequence stratigraphic correlation framework is established .According to the Sr isotope dating da‐ta ,the absolute geological ages of the bottom and top of Zhangqu Formation are 811 and 792 Ma ,respectively ,and the geological age of every third‐order cyclic sequence is about 3 .1 Ma .关键词
张渠组/层序地层/海平面变化/新元古代/徐州-淮北地区Key words
Zhangqu Formation/sequence stratigraphy/sea level change/Neoproterozoic/Xuzhou-Huaibai area分类
天文与地球科学引用本文复制引用
刘为付..徐州-淮北地区张渠组层序地层格架[J].浙江大学学报（理学版）,2016,(1):57-63,7.基金项目
东北石油大学培育基金项目（XN2014119）；全国油气资源战略选区调查与评价项目（2014XQ0102）；国家自然联合基金项目（U1262106）． （）
