胶辽鲁西徐淮地区新元古代地层多重划分对比
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摘要
依据岩性组合、古生物特征及地震事件层研究 ,对胶辽鲁西徐淮地区新元古代地层可作如下多重划分对比 :鲁西黑山官组、二青山组分别与辽东的钓鱼台组、南芬组相当 ,胶东豹山口组可与南芬组对比 ,它们同属青白口系。辽东南关岭组下部、鲁西石旺庄组下部、苏皖北部贾园组、淮南九里桥组皆为一套砂灰岩组合 ,都发育第一期地震事件层 ,并开始含有后生动物化石 ,为等时地层单位 ,与其以上各前寒武岩石地层单位同属灯影峡阶 ,鲁西的佟家庄组、浮来山组可分别与辽东桥头组、长岭子组、胶东辅子夼组、南庄组、苏皖北部兰陵组—城山组、淮南伍山组—四十里长山组对比 ,归属《中国区域年代地层 (地质年代 )表》新划分的陡山陀阶。
According to study on rock property combination, palaeobio characteristics and sesmic event strata, Neoproterozoic strata in Jiaoliao Luxi and Xuhuai area can be multi-divided and contrasted as follows: Heishanguan formation and Erqingshan formation in Luxi area are conformity with Diaoyutai formation and Nanfen formation, while Baoshankou fomation can contrast with Nanfen formation. They both belong to Qingbaikou system. The bottom of Nanguanling formation in Liaodong area, the bottom of Shiwangzhuang formation in Luxi area, Jiayuan formation in north of Suwan area and Jiuliqiao formation in Huainan area are a set of sandy limestone combinations and develope seismic-event strata. Furthermore, metazoic fossils occurred in them. They are isochronous stratigraphic units, and belong to Dengyingxia′an stage compared with former Cambrian stratigraphic units. Dongjiazhuang formation, Fulaishan formation in Luxi area can contrast with Qiaotou formation, Changlingzi formation in Liaodong area, Fuzikuang formation and Nanzhuang formation in Jiaodong area, Lanling formation-Chengshan formation in north of Suwan area and Wushan formation-Sishili Changshan formation in Huainan area, which belong to Doushantuo stage according to China Regional Chronostratigraphic(Geo-chronologic) Scale.
According to study on rock property combination, palaeobio characteristics and sesmic event strata, Neoproterozoic strata in Jiaoliao Luxi and Xuhuai area can be multi-divided and contrasted as follows: Heishanguan formation and Erqingshan formation in Luxi area are conformity with Diaoyutai formation and Nanfen formation, while Baoshankou fomation can contrast with Nanfen formation. They both belong to Qingbaikou system. The bottom of Nanguanling formation in Liaodong area, the bottom of Shiwangzhuang formation in Luxi area, Jiayuan formation in north of Suwan area and Jiuliqiao formation in Huainan area are a set of sandy limestone combinations and develope seismic-event strata. Furthermore, metazoic fossils occurred in them. They are isochronous stratigraphic units, and belong to Dengyingxia′an stage compared with former Cambrian stratigraphic units. Dongjiazhuang formation, Fulaishan formation in Luxi area can contrast with Qiaotou formation, Changlingzi formation in Liaodong area, Fuzikuang formation and Nanzhuang formation in Jiaodong area, Lanling formation-Chengshan formation in north of Suwan area and Wushan formation-Sishili Changshan formation in Huainan area, which belong to Doushantuo stage according to China Regional Chronostratigraphic(Geo-chronologic) Scale.
引文
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[3] 张增奇,刘明渭.山东省岩石地层[M ].武汉:中国地质大学出版社,1996,84-104.
[4] 山东省第四地质矿产勘查院.山东省区域地质[M ].济南:山东省地图出版社,2003,58-64.
[5] 江苏省地质矿产局.江苏省岩石地层[M ].武汉:中国地质大学出版社,1997,13-41.
[6] 安徽省地质矿产局.安徽省岩石地层[M ].武汉:中国地质大学出版社,1997,12-28.
[7] 中国地层典编委会.中国地层典—新元古界[M ].北京:地质出版社,1996,12-17.
[8] 陈晋镳,武铁山,张鹏远,游文澄.华北区区域地层[M ].武汉:中国地质大学出版社,1997,20-39.
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[10] 张增奇,刘书才,张成基,于学峰.《中国区域年代地层(地质年代)表》和《国际地层表》简介[J].山东国土资源,2003,19(3):34-41
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