| 辽东半岛南部晚寒武世凤山组笔石的发现兼论寒武系顶界 |
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| 引用本文： | 王敏成.辽东半岛南部晚寒武世凤山组笔石的发现兼论寒武系顶界[J].国土资源,1989(1). |
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| 作者姓名： | 王敏成 |
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| 作者单位： | 辽宁省地质矿产局区域地质调查队 大连 |
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| 摘 要： | 笔者(1988)在辽东半岛南部的瓦房店、复州湾和金州七顶山的晚寒武世凤山组中发现二层笔石化石,第一层笔石产在湾湾沟段中,它们为 Dictyonema wutingshanense Mu,Dendrograptus pennatus Lin,Dendrogra-ptus viminalis Lin,Callograptus sp.等;第二层笔石产在下楸树沟段中,它们为 Dictyonema kelanenseLin,Dendrograptus sp.,Callograptus sp.等,与笔石共生的三叶虫为?Calvinella sp.,牙形石为Proconodontus mueller。根据笔石和三叶虫等化石产出的情况及岩性特征,笔者认为辽东半岛南部晚寒武世凤山组可以从下向上划分为燕州段、湾湾沟段、下楸树沟段,寒武系的顶界即为下楸树沟段的顶界。
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| 关 键 词： | 辽东半岛南部 凤山组 笔石 寒武系顶界 |
DISCOVERY OF GRAPTOLITE FROM FENGSHAN FORMATION OF UPPER CAMBRIAN IN SOUTHERN LIAODONG PENINSULA AND DISCUSSION ABOUT THE TOP OF CAMBRIAN |
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| Wang Mincheng.DISCOVERY OF GRAPTOLITE FROM FENGSHAN FORMATION OF UPPER CAMBRIAN IN SOUTHERN LIAODONG PENINSULA AND DISCUSSION ABOUT THE TOP OF CAMBRIAN[J].Land & Resources,1989(1). |
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| Authors: | Wang Mincheng |
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| Abstract: | The Graptolites of two layers located at the Fengshan Formation of the upperCambrian in Fuzhou, Wafangdian and Qidingshan of Jinzhou in the southern Liaodongpeninsula.The Graptolites of first layer in Wanwangou member are Dictyonema wutings-hanense Mu, Dendrograptus pennatus Lin,Dendrograptus viminalis Lin,Callograptus etc.The Graptolites of the second layer in lower Qiushugou member are Dictyonema kelanenseLin, Dendrograptus sp., Callograptus sp. etc.. Trilobite and Conodont parageneratedwith Graptolites are? Calvinella sp.and proconodontus muelleri respectively.According to the emerged situation and lithological character of fossils like Grap-tolites and Trilobite, the Fengshan Formation can be divided into three members fromlower to upper: Yanzhou member,Wanwangou member, and lower Qiushugou member.The top of Cambrian is the top of the lower Qiushugou member. |
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| Keywords: | Southern Liaoning Peninsula Fengshan Formation Graptolites Top of Cambrian |
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