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10月20日路易斯安那州立大学姚强博士来访学术报告

时间:2019-10-18浏览:13

报告题目:Uncovering Hurricane Harvey’s storm deposition in the Aransas National Wildlife Refuge, Texas


报告人:Dr. Qiang Yao(姚强)


报告人简介:

Dr. Qiang Yao为路易斯安那州立大学海洋与海岸系博士后,主要研究方向是古环境学、海岸生态学和孢粉学。


报告内容简介:

        Few studies have documented the characteristics of storm deposits associated with a modern hurricane. Hurricane Harvey (2017) caused extensive flooding in coastal Texas due to a combination of storm surge and heavy precipitation. This study investigates the depositional process associated with Hurricane Harvey by means of loss-on-ignition (LOI) and X-ray fluorescence (XRF) analyses of 25 short cores collected from the Aransas National Wildlife Refuge ANWR, Texas. A distinct washover sand layer was recorded at all coring sites, and the intrusion of storm deposits can be detected by a peak in the chlorine/bromine (Cl/Br) ratio of most sediment cores. Our study shows that Cl/Br ratios are higher in coastal environments than in terrestrial environments, thereby confirming that this elemental ratio can be used as a salinity indicator and, as a corollary, evidence of marine intrusion into lower-salinity environments.


告时间:2019年10月20(周日)13:30-14:30


报告地点:临港基地B302会议室


邀请人:范代读   教授


欢迎大家参加!







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