| 山东半岛全新世近岸泥质区沉积过程与沉积记录* |
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| 引用本文： | 谷玉,刘喜停,吴晓,王爱美,毕乃双,王厚杰.山东半岛全新世近岸泥质区沉积过程与沉积记录*[J].古地理学报,2022,24(1):164-179. |
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| 作者姓名： | 谷玉 刘喜停 吴晓 王爱美 毕乃双 王厚杰 |
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| 作者单位： | 1.中国海洋大学海洋地球科学学院,海底科学与探测技术教育部重点实验室,山东青岛 266100;2.青岛海洋科学与技术国家实验室海洋地质过程与环境功能实验室,山东青岛 266237 |
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| 基金项目： | 国家自然科学基金面上项目(编号:41976053,42106164);山东省优秀青年基金项目(编号:ZR2021YQ26)联合资助。 |
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| 摘 要： | 中国东部陆架边缘海发育多个全新世泥质区,是研究古海洋和古气候的理想区域。本研究从现代沉积过程和全新世沉积记录的视角,对山东半岛近岸泥质区的前人研究结果进行总结梳理,为后续相关研究提供参考。山东半岛近岸泥质区位于山东半岛沿岸,主要是来自黄河的沉积物在沿岸流、上升流、潮汐等相互作用下沉积而成,呈现独特的“Ω”形沉积模式。山东半岛近岸泥质区形成于全新世,物质来源主要是黄河,近岸侵蚀和当地小河流也贡献一定的物质来源。山东半岛近岸泥质区的形成和演化与古海洋条件、海平面升降、内陆古气候演变等多种因素有关,蕴藏着丰富的环境演化信息。山东半岛近岸泥质区沉积能够快速记录东亚季风的演变,其较高的沉积速率为研究黄河流域的古气候和古生态演化提供高分辨率的材料,可为预测未来全球变化背景下黄河流域的发展趋势提供参考。虽然前人对现代沉积过程进行了大量工作,但仍需加强现代观测和数值模拟等方面的工作,为更好地重建研究区的沉积动力过程提供数据和理论支撑。此外,该区在长时间尺度上的沉积物和有机质的沉积过程对古海洋和古气候的响应机制也亟待开展研究。
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| 关 键 词： | 山东半岛 泥质区 沉积过程 沉积环境 古气候 古海洋学 全新世 |
| 收稿时间： | 2021-09-22 |
Sedimentary processes and records of the Holocene mud area off Shandong Peninsula |
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| Gu Yu,Liu Xi-Ting,Wu Xiao,Wang Ai-Mei,Bi Nai-Shuang,Wang Hou-Jie.Sedimentary processes and records of the Holocene mud area off Shandong Peninsula[J].Journal of Palaeogeography,2022,24(1):164-179. |
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| Authors: | Gu Yu Liu Xi-Ting Wu Xiao Wang Ai-Mei Bi Nai-Shuang Wang Hou-Jie |
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| Institution: | 1.College of Marine Geosciences, Key Laboratory of Submarine Geosciences and Prospecting Technology, Ocean University of China, Shandong Qingdao 266100,China;2.Laboratory for Marine Geology,Qingdao National Laboratory for Marine Science and Technology, Shandong Qingdao 266237,China |
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| Abstract: | The Holocene mud areas on the eastern continental shelf of China are an ideal area for studying paleoceanography and paleoclimate. From the perspective of modern sedimentary processes and Holocene sedimentary records,previous research results of the Holocene mud area off Shandong Peninsula are summarized to provide references for further studies. The mud area off Shandong Peninsula is located along the coast of Shandong Peninsula. It is mainly formed by the sediment from the Yellow River and deposited under the interaction of coastal,upwelling and tide currents,exhibiting a unique “Ω” shape. The mud area off Shandong Peninsula was formed by the last deglacial transgression in the Holocene. The Yellow River sediments are thought to be the main source of the mud area,while the nearshore erosion and local small rivers along the Shandong Peninsula coast also contributed sediments to the mud area. The formation and evolution of mud area record rich environmental information and are related to multi-factors,such as paleoceanography,sea-level changes and inland paleoclimatic evolution. The sedimentation of the mud area off Shandong Peninsula can respond to the evolution of East Asian Monsoon rapidly,and its high sedimentation rate can provide high resolution archive for the evolution of paleoclimate in the Yellow River Basin,which provide references for predicting the Yellow River Basin evolution under global climatic changes in future. Although a great deal of work has been done on modern sedimentary processes,modern observation and numerical simulation are still needed to provide data and theoretical support for better reconstruction of sedimentary dynamic processes in the study area. In addition,the response of the depositional processes of clastic sediment and organic matter to the paleoceanography and paleoclimate in the long-time scale need to be better understood. |
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| Keywords: | Shandong Peninsula mud area sedimentary processes sedimentary environment paleoclimate paleoceanography Holocene |
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