TIDAL DEPOSITION AND ENVIRONMENTAL EFFECTS: SUMMARY ON SEVENTH INTERNATIONAL CONFERENCE ON TIDAL ENVIRONMENTS
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摘要: 潮流沉积学大会每4年举办一次,汇集了国际潮流沉积研究领域最前沿的学术成果。2008年,中国第一次成功举办第七届国际潮流沉积学大会。会议以现代和古代潮流沉积层序、潮流沉积水动力学、潮流沉积体系对全球变化的响应以及潮流沉积环境的监测和模拟为中心议题,详尽介绍了有"陆架潮流沉积地貌博物馆"之称的中国浅而宽的大陆架上的6个主要潮流沉积体系;集中关注与人类活动密切相关的潮控三角洲的发展变迁;对于潮流沉积层序的辨别和分析不仅表明了沉积的物质来源,还揭示了潮流和沉积物行为模式的动力学机制;潮流沉积的环境效应是区域性的,同时更是对于全球变化的明显响应。在此背景下,对其监测与物理、数值模拟在认识高、低纬度地区的潮流沉积体系对全球变化的响应以及极端气候事件对潮流沉积体系的改造中发挥了不可替代的作用。Abstract: International conference on tidal environments was held every four years, it is the first time for China to be a successful host of the 7th conference in September, 2008, bringing together newly research achievements on tidal deposition and environments. "Modern and ancient tidal sedimentation and sedimentary sequences","tidal hydrodynamics-sediment dynamics and morphodynamics", "impacts of global change and human activities on tidal environments" and "physical and mathematical modeling techniques for tidal environments" were considered as the focus topics. It introduced the six main tidal depositional systems on China's shallow and wide continental shelf which is famous for museum of tidal depositional morphology on continental shelf; for its close relations to human's activities the development of tide-dominated delta was drew much attention; identification and analysis of tidal sedimentary sequence not only show the source of sediments, but also reveal the dynamic mechanism of behavior pattern of tidal currents and sediments. The environmental effects of tidal deposition are not just regional but even more the apparent response to global change, therefore, its monitoring and physics-numerical simulation under this background play an irreplaceable role in the understanding of tidal depositional systems of high-and low-latitude regions in response to global change and transformation of depositional systems by extreme climate events.
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Key words:
- tidal deposition /
- continental shelf /
- tide-dominated delta /
- depositional sequence /
- hydrodynamic
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