| 渤海湾西岸全新世再搬运贝壳驻留时间效应初探 |
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| 引用本文： | 商志文,王 福,李建芬,陈永胜,姜兴钰,田立柱,王 宏.渤海湾西岸全新世再搬运贝壳驻留时间效应初探[J].地质通报,2014,33(10):1596-1601. |
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| 作者姓名： | 商志文 王 福 李建芬 陈永胜 姜兴钰 田立柱 王 宏 |
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| 作者单位： | 1. 中国地质调查局天津地质调查中心, 天津 300170；
2. 中国地质调查局泥质海岸带地质环境重点实验室，天津 300170 |
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| 基金项目： | 中国地质调查局项目(编号:12120113005800、1212011120169);国家自然科学基金项目(批准号:41372173) |
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| 摘 要： | 以渤海湾西岸大港区穿港路采土场内贝壳堆积层中的闭合贝壳、单瓣贝壳和贝壳碎屑为对象,开展全新世再搬运贝壳的驻留时间效应研究。通过对5个剖面(剖面2、4~7)、3个层位的15个贝壳测年样品(闭壳合、单瓣壳和贝壳碎屑)AMS14C年龄对比,初步获得研究区单瓣贝壳(或腹足类)的驻留时间经验值为440a、贝壳碎屑的驻留时间经验值为650a。
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| 关 键 词： | 再搬运贝壳 驻留时间 渤海湾西岸 |
A preliminary study of the residence time effect of the Holocene reworked shells on the west coast of Bohai Bay |
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| SHANG Zhi-wen,WANG Fu,LI Jian-fen,CHEN Yong-sheng,JIANG Xing-yu,TIAN Li-zhu,WANG Hong.A preliminary study of the residence time effect of the Holocene reworked shells on the west coast of Bohai Bay[J].Geologcal Bulletin OF China,2014,33(10):1596-1601. |
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| Authors: | SHANG Zhi-wen WANG Fu LI Jian-fen CHEN Yong-sheng JIANG Xing-yu TIAN Li-zhu WANG Hong |
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| Institution: | 1. Tianjin Center, China Geological Survey, Tianjin 300170, China;
2. Key Laboratory of Muddy Coast Geo-environment, China Geological Survey, Tianjin 300170, China |
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| Abstract: | The shelly layers in Chuanganglu pit of Dagang District on the west coast of Bohai Bay were taken as the study object for investigating the residence time of the Holocene reworked shells. Based on an analysis of the AMS 14C dating results of 15 samples, including articulated, disarticulated valves and shell hash, which were taken from the three shelly layers of five sections (Section 2 and sections 4~7), the authors obtained the residence time of 440a for the disarticulated shells and 650a for the shell fragments, on the basis of a comparison with the ages of the articulated shells taken from the same layers. |
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| Keywords: | reworked shells residence time west coast of Bohai Bay |
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