| 浙江北仑港地区宁波组海生化石的发现及其地质意义 |
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| 引用本文： | 陈俊仪.浙江北仑港地区宁波组海生化石的发现及其地质意义[J].海洋地质与第四纪地质,1990(3). |
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| 作者姓名： | 陈俊仪 |
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| 作者单位： | 浙江省第五地质大队 |
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| 摘 要： | 在以往一直认为属于陆相地层的宁波组中,发现了大量有孔虫、介形虫和软体动物化石。这些化石资料表明,宁波组属于一套海陆过渡型沉积,可能为潮间带。在横向、垂向变化方面,海陆过渡相具有向河湖相演变的趋势。同时还讨论了当时海水环境的特点以及与新构造运动的关系。
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| 关 键 词： | 宁波组 海生化石 海陆过渡相 |
MARINE FOSSILS IN NINGBO FORMATION, BEILUN HARBOUR DISTRICT, AND THE GEOLOGICAL SIGNIFICANCE |
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| Chen Junyi.MARINE FOSSILS IN NINGBO FORMATION, BEILUN HARBOUR DISTRICT, AND THE GEOLOGICAL SIGNIFICANCE[J].Marine Geology & Quaternary Geology,1990(3). |
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| Authors: | Chen Junyi |
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| Abstract: | Ningbo Formation has long been considered to belong to a terrestrial one, but recently a large number of foraminiferal, ostracoda and mollusca fossils have been discovered in it. These fossil date indicate that Ningbo Formation is marine-continental transitional sediment, maybe belonging to tidal zone. The marine-continental transitional facies tends to develop towards fluvial-lacustrine facies in transverse and vertical directions. This paper also discusses the features of seawater environments and the relationship with neotectonic movement. |
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| Keywords: | Ningbo Formation marine fossil marine-continentaltransition sediment |
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