Abstract:

We collected a 118 cm long and well-preserved sediment profile in palaeo-notches from the first strandflat of Ny-lesund(78°55′N,11°56′E),Svalbard,Arctic,and performed multiple sedimentological analyses,including the lithological characteristics of the sediments,the carbon and nitrogen isotopic compositions and chemical element contents.The results showed that the 70—118 cm layer of the sediments was significantly amended by seabird-dropping.The concentrations of TOC、TN、TS、Se、Sr、CaO、As、Pb、Zn in the sediments are notably enriched,they are significantly correlated with each other,and they have a consistent pattern of change versus depth.These elements are good biomarkers for seabirddropping and population.These results could lay the groundwork for the reconstruction of palaeoclimate and the seabird occupation history between 12 ka B.P.and 4 ka B.P.in Ny-lesund,Svalbard,Arctic.