摘要
X-ray fluorescence scanning with synchrotron radiation was performed to study sediment core records of floods in Amur Bay,Sea of Japan.Interlayers of 3–8 mm with abnormally low bromine content were formed by the Razdolnaya River discharge to the central part of the bay during extreme floods,accompanied by severe storms at sea.Such conditions in the region are typical for periods of deep tropical cyclones(typhoons),to which the distinguished interlayers were compared on the timescale.This approach was made possible thanks to the high rate of sedimentation in the bay(3–5 mm/a) and low bioturbation of sediments under anoxic conditions.
X-ray fluorescence scanning with synchrotron radiation was performed to study sediment core records of floods in Amur Bay, Sea of Japan. Interlayers of 3-8 mm with abnormally low bromine content were formed by the Razdolnaya River discharge to the central part of the bay during extreme floods, accompanied by severe storms at sea. Such conditions in the region are typical for periods of deep tropical cyclones （typhoons）, to which the distinguished interlayers were compared on the timescale. This approach was made possible thanks to the high rate of sedimentation in the bay （3-5 mm/a） and low bioturbation of sediments under anoxic conditions.
基金
Supported partially by the RFBR(No.15-35-50123)
关键词
河口沉积物
溴含量
洪水
台风
异常
信号
水沉积物
同步辐射
X-ray fluorescence scanning
typhoons
sediments
bromine
continental shelf
Sea of Japan
Amur Bay
