| 渤海湾西岸第二道贝壳堤的细分及其年龄序列 |
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| 引用本文：王宏,张玉发,张金起,李建芬,李凤林,Mark Van Strydonck,Veerle Hendrix.2000.渤海湾西岸第二道贝壳堤的细分及其年龄序列[J].地球学报,21(3):320-327. |
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| 基金项目:国家自然科学基金(No.49672139)，中国-希腊政府间科技合作项目(No.98015) |
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| 中文摘要:渤海湾西岸贝壳堤平原的第二道贝壳堤(II堤)在上古林可进一步划分为被泻湖盐沼沉积物所分隔的两道大致平行、互不相连的堤(II1、II2堤)。以系统的14C年代学研究为基础，在II贝壳堤的下部或底部、下伏地层顶部及相邻的泥质沉积物的合适层位获得一批经过校正的14C年龄。II1堤和II2堤的起止时间分别约为公元前10～5世纪、公元前3世纪—3世纪。 |
| 中文关键词:II贝壳堤 放射性碳年代学 |
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| The Chenier II on the Western Coast of Bohai Bay:Its Subdivision and Amended Time framework |
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| Abstract:The Chenier II is most accessible and intensively studied one among the other cheniers on the West Coast of Bohai Bay. Our newly discovered evidence indicates that it is separated, by a narrow lagoon-marsh mud belt, into two sub-ridges in Shanggulin. This is supported chronologically by a number of 14 C ages from this site and Laolangtuozi, and other places from the literature. Radiocarbon study has long been a drawback in the working area. 14 C sampling-position adequateness, proper species for dating and systematic calibration are all strictly followed including ①Geologically, samples were taken from the bottom and/or lower portion of the chenier bodies, or from the immediately adjacent underlying/overlying muddy layers;②Geochemically, suitable species for radiocarbon dating in the area have been determined as Umbonium sp. and Terebridae, etc. These prove that the Chenier II consists of two sub-stages, II 1 and II 2, with their initial ages of ～10 century B.C and ～3 century B.C, respectively. |
| keywords:chenier II radiocarban chronology |
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