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| 从孢粉化石证据论冀北后城组的时代 | |
| 引用本文： | 张路锁,张树胜,赵克明.从孢粉化石证据论冀北后城组的时代[J].地层学杂志,2009,33(4). |
| 作者姓名： | 张路锁 张树胜 赵克明 |
| 作者单位： | 1. 中国矿业大学,北京,资源与安全工程学院,北京,100083;河北省煤田地质局,河北,石家庄,050051 2. 河北省煤田地质局第四地质队,河北,宣化,075100 3. 河北省煤田地质勘查院,河北,邢台,054000 |
| 基金项目： | 河北省国土资源厅2007年矿产资源补偿费地质勘查专项 |
| 摘 要： | 主要分布于冀北地区的后城组是一套以河流相红色砂砾岩为主的地层,此前在不同地点的该岩组中曾发现中侏罗世晚期的叶肢介、瓣鳃类和爬行动物化石和晚侏罗世的介形类和孢粉等化石。新近在蔚县后城组发现的孢粉组合与此前在宣化堰家沟、万全渔儿山西侧后城组晚侏罗世孢粉化石组合面貌具有明显的差异,时代属中侏罗世。孢粉化石证据说明冀北的后城组系—套中—晚侏罗世沉积。 |
| 关 键 词： | 生物地层 孢粉组合 地质时代 后城组 罗系 蔚县 河北 |
ON AGE OF THE HOUCHENG FORMATION IN HEBEI IN THE LIGHT OF PALYNOLOGICAL EVIDENCE |
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| ZHANG Lu-suo,ZHANG Shu-sheng,ZHAO Ke-ming.ON AGE OF THE HOUCHENG FORMATION IN HEBEI IN THE LIGHT OF PALYNOLOGICAL EVIDENCE[J].Journal of Stratigraphy,2009,33(4). | |
| Authors: | ZHANG Lu-suo ZHANG Shu-sheng ZHAO Ke-ming |
| Institution: | ZHANG Lu-suo1) 2),ZHANG Shu-sheng3) , ZHAO Ke-ming4) 1) College of Resources , Safety Engineering,China University of Mining , Technology,Beijing 100083,2) Bureau of Coal Geology of Hebei Province,Shijiazhuang 050051,3) The 4th Geological Team,Bureau of Coal Geology of Hebei Province,Xuanhua 075100,4) Institue of Coal Prospecting,Hebei Province,Xingtai 054000 |
| Abstract: | The Houcheng Formation distributed in northern Hebei Province is composed mainly of the fluvial red sandstone and conglomerate rocks,occasionally with fluvial sandy mudstone and intermediate and acidic volcanic beds and partly with thin coal seams. Its age was assigned on different fossil evidences to Late Middle Jurassic,Late Jurassic or early Late Jurassic. The present palynological assemblage from this formation in Yuxian is characterized by plenty of spores Cyathidites(70% in content) ,with a few spore ... |
| Keywords: | biostratigraphy palynology Houcheng Formation Jurassic Yuxian Hebei |
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