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对位于东海内陆架浙—闽沿岸泥质带的EC2005孔岩性、粒度以及AMS14C年代进行了分析,着重探讨了研究区自末次冰消期以来的沉积速率变化,划分出4个大的沉积阶段和4次快速沉积事件。千年时间尺度上大的沉积阶段主要受控于物源供应、海平面变化以及可容空间的大小。百年时间尺度上揭示的4次快速沉积事件主要受控于东亚冬季风的增强或是气候的变冷,与中国湖光玛珥湖沉积物Ti含量以及北大西洋浮冰碎屑具有良好对应,与世界范围内存在的新仙女木事件、7300 a BP冷事件、第二新冰期(5500 a BP强降温事件)以及北大西洋1400a BP浮冰事件也均有良好的对应。全新世高海平面以来东海内陆架泥质沉积物百年时间尺度上的沉积速率可以作为东亚冬季风变化的沉积学代用指标。
The lithology, grain size and AMS14C ages of EC2005 porphyry located on the Zhe-Min coast of the East China Sea continental shelf were analyzed. The changes of sedimentation rate in the study area since the last deglaciation were discussed. Four large sediments Stage and 4 rapid deposition events. The large depositional stage on the millennium time scale is mainly controlled by the supply of provenance, sea level change and the size of the tolerable space. The four rapid depositional events revealed on the centennial time scale are mainly controlled by the enhancement of the East Asian winter monsoon or the cooling of the climate, which is in good correspondence with the Ti content of the Lake Maar Lake sediments and the ice floes in the North Atlantic Ocean. The world-wide presence of the new fairy wood event, 7300 a BP cold event, the second ice age (5500 a BP strong cooling event) and the North Atlantic 1400a BP ice event also have a good correspondence. Since Ceno-Cenozoic at high sea level, the sedimentation rate over the centuries time scale of the mud-sedimentary sediments in the East China Sea continental shelf can serve as a proxy for the sedimentology of the East Asian winter monsoon.