Bedrock samples from the Chukchi Borderland, Arctic Ocean——First Chinese dredge in the polar regions  

作　　者：Tao Zhang Yanhui Dong Chunguo Yang Qingsheng Guan Jinyao Gao 

机构地区：[1]Key Laboratory of Submarine Geosciences,State Oceanic Administration,Hangzhou 310012,China [2]Second Institute of Oceanography,Ministry of Natural Resources,Hangzhou 310012,China [3]Collaborative Innovation Center of South China Sea Studies/School of Geographic and Oceanographic Sciences,Nanjing University,Nanjing 210023,China

出　　处：《Acta Oceanologica Sinica》2019年第11期162-164,共3页海洋学报（英文版）

基　　金：The National Natural Science Foundation of China under contract No.41576065;the Chinese Polar Environment Comprehensive Investigation and Assessment Programmes under contract Nos CHINARE 03-03 and CHINARE 04-03

摘　　要：The Chukchi Borderland is a relict continental block in the Arctic Ocean.Its origin and tectonic processes are of great significance for understanding the formation model of the Amerasia Basin and the configurations of the Mesozoic Arctic regions.Due to the harsh environment and rare geological and geophysical data,the evolution of the Chukchi Borderland is still unclear(e.g.,Grantz et al.,1998,2011).We conducted two rock dredges and a multibeam full coverage survey of 830 km2 in the Northwind Abyssal Plain of the Chukchi Borderland during the Chinese ninth Arctic scientific expedition in 2018.This is the first rock dredge survey of China in the polar regions with floating ice,and is just after the HLY0905 dredge at the Northwind Abyssal Plain in 2009(Mayer and Armstrong,2011).The retrieved samples will provide new information for understanding the origin and tectonic evolution of the Chukchi Borderland.

关 键 词：ARCTIC rock TECTONIC 

分 类 号：P73[天文地球—海洋科学]